Anesthesia system and anesthesia machine

Abstract

The utility model discloses an anesthesia system and an anesthesia machine, the anesthesia system comprises the anesthesia machine and a ventilation device, and the ventilation device is selectively coupled with or decoupled from the anesthesia machine; after the ventilation device and the anaesthesia machine are decoupled, the ventilation device independently provides periodic respiratory support for the patient; after the ventilation device is coupled with the anesthesia machine, the ventilation device is independent of the anesthesia machine to provide periodic respiratory support for the patient, or the anesthesia system receives operation on the ventilation device through the anesthesia machine to control the ventilation device to provide periodic respiratory support for the patient.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to an anesthesia system and an anesthesia machine. Background Art

[0002] The function of the anesthesia machine is to provide inhalation anesthesia and mechanical ventilation to the patient during surgery. With the help of the anesthesia ventilator, the patient maintains airway patency, improves ventilation and oxygenation, and prevents hypoxia and CO2 accumulation. Therefore, the airway system of the anesthesia machine is connected to the patient's respiratory system and ensures airtightness in order to implement effective ventilation and anesthesia. The commonly used method is to insert a tracheal tube into the patient's trachea through endotracheal intubation.

[0003] However, in some pharyngeal, tracheal, bronchial or lung surgeries, endotracheal intubation cannot be used because it will block the surgical site, making it impossible to perform the surgery, or because this ventilation method will cause the surgical site to fluctuate periodically with the ventilation of inhalation and exhalation, affecting the surgical effect. Usually, high-frequency jet equipment, such as high-frequency jet ventilators, is required. However, such equipment is rarely equipped in anesthesia operating rooms and is not used very frequently. Many hospitals do not have the conditions for such surgery and can only transfer to other hospitals for surgical treatment, or use other compromise methods, which greatly reduces the surgical effect and even brings surgical risks. Summary of the invention

[0004] According to a first aspect of the present invention, the present invention provides an anesthesia system, comprising an anesthesia machine and a ventilation device;

[0005] The anesthesia machine includes a flow monitoring device, a breathing circuit and a first ventilation control device;

[0006] The flow monitoring device is used to adjust the flow of the first gas, the breathing circuit is used to receive the second gas and deliver the second gas to the patient, and the first ventilation control device is used to control the breathing circuit to deliver the second gas to the patient; wherein the first gas is mixed with an anesthetic to obtain the second gas;

[0007] The ventilation device includes a second ventilation control device and a gas delivery branch;

[0008] The gas delivery branch is used to receive a third gas, and the second ventilation control device is used to control the gas delivery branch to deliver the third gas to the patient at a first ventilation frequency;

[0009] Wherein, the ventilation device is selectively coupled or decoupled with the anesthesia machine; after the ventilation device is coupled with the anesthesia machine, the ventilation device provides the third gas to the patient independently of the anesthesia machine, or the anesthesia system receives the operation of the ventilation device through the anesthesia machine to control the ventilation device to provide the third gas to the patient.

[0010] According to a second aspect of the present invention, the present invention provides an anesthesia system, comprising an anesthesia machine, the anesthesia machine comprising a flow monitoring device, a breathing circuit and a first ventilation control device;

[0011] The flow monitoring device is used to adjust the flow of the first gas;

[0012] The breathing circuit is used to deliver the second gas to the patient, wherein the second gas is obtained by mixing the first gas with an anesthetic;

[0013] The first ventilation control device is used to control the breathing circuit to deliver the second gas to the patient, thereby providing anesthesia breathing support for the patient;

[0014] The anesthesia system further comprises a ventilation device, the anesthesia machine has an attachment position configured to engage with the ventilation device, and the ventilation device can be detachably mounted on the attachment position; the ventilation device comprises a second ventilation control device and a gas delivery branch;

[0015] The gas delivery branch is used to receive a third gas and provide exhalation support to the patient, and the second ventilation control device controls the gas delivery branch to provide respiratory support to the patient at a first ventilation frequency.

[0016] According to a third aspect of the present invention, the present invention provides an anesthesia machine, comprising a flow monitoring device, an anesthetic delivery device, a breathing circuit and a first ventilation control device;

[0017] The flow monitoring device is used to adjust the flow of the first gas;

[0018] The anesthetic delivery device is used to mix the first gas with the anesthetic to obtain a second gas, and deliver the second gas to the breathing circuit;

[0019] The breathing circuit is used to deliver the second gas to the patient;

[0020] The first ventilation control device is used to control the breathing circuit to deliver the second gas to the patient, thereby providing anesthesia breathing support for the patient;

[0021] Among them, the anesthesia machine has an attachment position configured to be provided with a first coupling member; the first coupling member includes at least one of the following: a fixed structure for connecting an external ventilation device to the anesthesia machine, a gas source connector for delivering the first gas to the external ventilation device, an auxiliary power output interface for providing electrical energy to the external ventilation device, and an auxiliary signal output interface for transmitting signals with the external ventilation device.

[0022] According to a fourth aspect of the present invention, the present invention provides an anesthesia machine, comprising an anesthesia machine host, a flow monitoring device, a breathing circuit, a first ventilation control device and a ventilation device;

[0023] The flow monitoring device is used to adjust the flow of the first gas;

[0024] The flow monitoring device is used to adjust the flow of the first gas provided by the gas source module;

[0025] The breathing circuit is used to deliver a second gas to the patient, wherein the second gas is obtained by mixing the first gas with an anesthetic;

[0026] The first ventilation control device is used to control the breathing circuit to deliver the second gas to the patient, so that the anesthesia machine provides anesthesia breathing support for the patient;

[0027] The ventilation device is used to receive the first gas provided by the gas source module, and to provide respiratory support for the patient by delivering the first gas to the patient at a first ventilation frequency and / or a second ventilation frequency; wherein at least part of the ventilation device is arranged inside the mainframe of the anesthesia machine;

[0028] The first gas provided by the gas source module is an oxygen-containing gas, and the anesthesia machine provides anesthesia breathing support and / or breathing support for the patient according to the received breathing support mode.

[0029] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 is a structural schematic diagram of an anesthesia system provided by an embodiment of the present application;

[0032] Figure 2 yes Figure 1 A structural block diagram of an anesthesia system in one embodiment;

[0033] Figure 3 yes Figure 1 A structural block diagram of an anesthesia system in yet another embodiment;

[0034] Figure 4 yes Figure 1 A structural block diagram of an anesthesia system in yet another embodiment;

[0035] Figure 5 yes Figure 1 A structural block diagram of an anesthesia system in another embodiment;

[0036] Figure 6 yes Figure 1 The structural block diagram of the anesthesia machine of the anesthesia system;

[0037] Figure 7 yes Figure 1 A block diagram of the ventilation device of the anesthesia system;

[0038] Figure 8 yes Figure 1 A gas circuit diagram of a ventilation device of an anesthesia system;

[0039] Fig. 9 yes Figure 1 A gas circuit diagram of a ventilation device of an anesthesia system;

[0040] Fig.10 yes Figure 1 A gas circuit diagram of a ventilation device of an anesthesia system;

[0041] Fig.11 yes Figure 1 A gas circuit diagram of a ventilation device of an anesthesia system;

[0042] Fig.12 yes Figure 1 A gas circuit diagram of a ventilation device of an anesthesia system;

[0043] Fig.13a It is a schematic diagram of the main monitoring interface on the display of the anesthesia machine;

[0044] Fig.13b It is a schematic diagram of the main monitoring interface on the display of the anesthesia machine;

[0045] Fig.14 A pressure waveform diagram displayed on a display of the anesthesia machine provided by the present invention;

[0046] Fig.15 A structural block diagram of an anesthesia machine according to an embodiment of the present invention;

[0047] Fig.16 A waveform diagram of the airway pressure generated by the ventilation device in the anesthesia machine provided by the present invention;

[0048] Fig.17 A structural block diagram of an embodiment of a ventilation device in an anesthesia machine provided by the present invention;

[0049] Fig.18 A gas circuit diagram of an embodiment of a ventilation device in an anesthesia machine provided by the present invention;

[0050] Fig.19 A gas circuit diagram of an embodiment of a ventilation device in an anesthesia machine provided by the present invention;

[0051] Fig. 20 A gas circuit diagram of an embodiment of a ventilation device in an anesthesia machine provided by the present invention;

[0052] Fig.21 A gas circuit diagram of an embodiment of a ventilation device in an anesthesia machine provided by the present invention;

[0053] Fig. 22 A gas circuit diagram of an embodiment of a ventilation device in an anesthesia machine provided by the present invention;

[0054] Fig.23 A gas circuit diagram of an embodiment of a ventilation device in the anesthesia machine provided by the present invention.

[0055] Description of reference numerals:

[0056] 100. anesthesia machine; 101. flow monitoring device; 102. anesthetic delivery device; 103. breathing circuit; 104. first ventilation control device;

[0057] 200, ventilation device; 201, pressure stabilizing device; 202, second control valve; 202a, first control valve; 202b, third control valve; 203, first pressure monitoring device; 203a, first oxygen pressure sensor; 203b, first air pressure sensor; 204, flow sensor; 204a, first flow sensor; 204b, second flow sensor; 205, safety valve; 206, second pressure monitoring device; 207, injection attachment; 208, third pressure monitoring device;

[0058] 300, 300', gas source interface; 300a, oxygen interface; 300b, air interface;

[0059] 400. Patients; 400a. First patient; 400b. Second patient. DETAILED DESCRIPTION

[0060] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0061] It should also be understood that the terms used in this specification of the present application are only for describing specific realities. In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0062] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0063] like Figures 1 to 14 As shown, according to the first aspect of the present application, the present application provides an anesthesia system, including an anesthesia machine 100 and a ventilation device 200, wherein the ventilation device 200 is used to selectively couple or decouple with the anesthesia machine 100. After the two are coupled, the ventilation device 200 can independently provide periodic respiratory support to the patient 400, or the ventilation device 200 can provide periodic respiratory support to the patient 400 through the control of the anesthesia machine 100, so that not only part of the pipeline system or operating system of the anesthesia machine 100 is shared on the basis of saving space, and the manufacturing cost of the anesthesia system is reduced; at the same time, periodic respiratory support or periodic anesthesia respiratory support can be provided to the patient 400 to meet the needs of different physiological conditions of different patients 400.

[0064] Exemplarily, when the ventilation device 200 is decoupled from the anesthesia machine 100, the ventilation device 200 can independently provide periodic respiratory support to the patient 400; when the ventilation device 200 is coupled to the anesthesia machine 100, the ventilation device 200 can provide periodic respiratory support to the patient 400 independently of the anesthesia machine 100, or the anesthesia system receives operation of the ventilation device 200 through the anesthesia machine 100 to control the ventilation device 200 to provide periodic respiratory support to the patient 400 to meet the needs of different physiological conditions of the user.

[0065] It should be noted that the coupling between the ventilation device 200 and the anesthesia machine 100 can be that the ventilation device 200 and the anesthesia machine 100 can share a data storage system for receiving patient 400 information, or the ventilation device 200 is attached to the data storage system of the anesthesia machine 100, thereby saving management resources and improving work efficiency through sharing of patient 400 information.

[0066] Alternatively, the coupling between the ventilation device 200 and the anesthesia machine 100 can also be a mechanical connection between the ventilation device 200 and the anesthesia machine 100 to reduce the space occupied by the ventilation device 200, so that the ventilation device 200 can be connected to the anesthesia machine 100, effectively utilizing the space of the anesthesia machine 100, and not occupying too much installation space due to the addition of the ventilation device 200.

[0067] Alternatively, the coupling between the ventilation device 200 and the anesthesia machine 100 may also include a communication connection and / or an air circuit connection between the ventilation device 200 and the anesthesia machine 100; that is, the ventilation device 200 may share the same air source, power supply and / or other communication device with the anesthesia machine 100, thereby effectively reducing the manufacturing cost of the anesthesia system due to the addition of the ventilation device 200 and saving the space occupied by the anesthesia system.

[0068] In an optional embodiment, the anesthesia machine 100 includes a flow monitoring device 101, an anesthetic delivery device 102, a breathing circuit 103, and a first ventilation control device 104. The flow monitoring device 101 is used to adjust the flow of a first gas, the first gas is mixed with the anesthetic provided by the anesthetic delivery device 102 to obtain a second gas, the second gas is delivered to the breathing circuit 103, the breathing circuit 103 is used to deliver the second gas to the patient 400, and the first ventilation control device 104 is used to control the breathing circuit 103 to deliver the second gas to the patient 400, so that the anesthesia machine 100 provides periodic anesthesia breathing support for the patient 400.

[0069] The first gas may be oxygen, air, or a mixture of oxygen and air, a mixture of oxygen and laughing gas, etc. Since respiratory support needs to be provided for the patient 400, the first gas provided contains at least oxygen.

[0070] The present application couples the ventilation device 200 to the anesthesia machine 100, so that the anesthesia system can provide periodic respiratory support through the ventilation device 200, or the anesthesia machine 100 receives the operation of the ventilation device 200 to control the ventilation device 200 to provide periodic respiratory support to the patient 400. The periodic respiratory support provided by the ventilation device 200 can be high-frequency ventilation or low-frequency ventilation, etc. The ventilation mode of the ventilation device 200 can be jet ventilation or non-jet ventilation.

[0071] In an optional embodiment, the ventilation device 200 includes a pressure stabilizing device 201, a second ventilation control device and a gas delivery branch, wherein the gas delivery branch is used to receive a third gas and provide periodic respiratory support to the patient 400, and the pressure stabilizing device 201 is used to maintain a stable supply pressure of the third gas in the input gas delivery branch to provide smooth gas for the ventilation device 200; the second ventilation control device switches the flow rate at a preset frequency to control the gas delivery branch to provide periodic respiratory support to the patient 400, so that the anesthesia system can not only control the breathing circuit 103 through the first ventilation control device 104 to provide periodic anesthetic respiratory support to the patient 400, but also control the gas delivery branch through the second ventilation control device 202 to provide periodic respiratory support to the patient 400, or both can provide respiratory support to different or the same patients 400 at the same time.

[0072] In some examples, after the ventilation device 200 is decoupled from the anesthesia machine 100, the ventilation device 200 can independently provide periodic respiratory support to the patient 400; and after the ventilation device 200 is coupled to the anesthesia machine 100, the ventilation device 200 can provide periodic respiratory support to the patient 400 independently of the anesthesia machine 100, or the anesthesia system can receive operation of the ventilation device 200 through the anesthesia machine 100 to control the ventilation device 200 to provide periodic respiratory support to the patient 400.

[0073] It should be noted that the periodicity in "periodic respiratory support" refers to the high-flow oxygen therapy provided by the auxiliary air supply module described below; high-flow oxygen therapy is a continuous supply of air to the patient, without forming a ventilation frequency or a respiratory cycle. During use, after the high-flow oxygen therapy is started, the patient will be continuously supplied with gas at a set flow rate. When the flow rate setting value does not change, the control valve in the gas branch maintains the opening size corresponding to the flow rate setting value. Periodic respiratory support refers to supplying air to the patient at a certain ventilation frequency. After the ventilation frequency is determined, the patient is supplied with air in units of a single respiratory cycle. Among them, when providing periodic respiratory support, the ventilation device supplies air to the patient at a non-constant flow rate in a single respiratory cycle, and the control valve in the gas branch in a single respiratory cycle will switch the flow rate by opening control; finally, multiple respiratory cycles are superimposed to form a gas with a determined ventilation frequency. It should be noted that the term "periodicity" herein is used to describe that the respiratory support provided by the ventilation device is a ventilation process performed at a certain ventilation frequency, and is not used to limit the ventilation settings of each respiratory cycle provided by the ventilation device. It can be further understood from the common experience of those skilled in the art that the ventilation frequency is a non-zero value; the first ventilation frequency, the second ventilation frequency, the third ventilation frequency, etc. herein are all non-zero values.

[0074] In addition, the "periodic respiratory support" and "periodic anesthesia respiratory support" mentioned in the present invention represent two different respiratory support methods. The common point between the two is that gas delivery is provided to the patient at a variable flow rate within a respiratory cycle. The difference between the two is that the gas delivered by the periodic anesthesia respiratory support includes anesthetics, while the gas delivered under the periodic respiratory support method does not contain anesthetics. Specifically, the respiratory support provided to the patient by the ventilation device means that the first gas is delivered to the patient at a variable flow rate within a single respiratory cycle, that is, the first gas is delivered to the patient at two flow rates, one large and one small, within a single respiratory cycle. The small flow rate may be 0 or not. When the small flow rate is 0, it means that no gas delivery is provided to the patient for part of the single respiratory cycle. The first ventilation control device provides anesthesia respiratory support to the patient, which means that the second gas is delivered to the patient at a variable flow rate within a single respiratory cycle, that is, the second gas is delivered to the patient at two flow rates, one large and one small, within a single respiratory cycle. The small flow rate may be 0 or not. In this embodiment, since the flow rates provided by the two respiratory support modes vary in a single respiratory cycle, the first ventilation frequency and the third ventilation frequency are both non-zero ventilation frequencies, or in other words, the values ​​of the first ventilation frequency and the third ventilation frequency are greater than zero.

[0075] The third gas may be the same as the first gas or different from the first gas, for example, the third gas is oxygen and the first gas is air; or the third gas is oxygen and the first gas is oxygen; or the third gas is a mixture of oxygen and air, and so on.

[0076] In an optional embodiment, the ventilation device 200 and the anesthesia machine 100 may share an output interface after being coupled. In these embodiments, due to the limitation of only one output interface, only one of the ventilation device 200 and the anesthesia machine 100 may be in working state.

[0077] Alternatively, the ventilation device 200 and the anesthesia machine 100 each have an independent output interface. Of course, in these embodiments, the ventilation device 200 and the anesthesia machine 100 can operate independently. Specifically, independent start switches can be configured for the ventilation device 200 and the anesthesia machine 100 to independently control the two; or, the anesthesia machine 100 can be configured with a main switch, and when the ventilation device 200 and the anesthesia machine 100 need to be independently turned on or off, they are controlled by the anesthesia machine 100.

[0078] In an optional embodiment, the anesthesia machine 100 includes a first shell, and the ventilation device 200 includes a second shell. The first shell has an attachment position configured to engage with the ventilation device 200; the attachment position is formed with a mounting position that matches the second shell of the ventilation device 200. After the ventilation device 200 is coupled to the anesthesia machine 100, the ventilation device 200 is at least partially accommodated in the mounting position. In this way, not only can the ventilation device 200 be quickly fixed to the anesthesia machine 100, but also the space occupied by the anesthesia system will not be increased due to the addition of the ventilation device 200, and the compatibility of the functions of the anesthesia machine 100 itself and the functions added by the ventilation device 200 is achieved.

[0079] In an optional embodiment, an auxiliary output interface is also provided at the attachment position, and an input interface is provided on the ventilation device 200, which is used to connect to the auxiliary output interface to obtain electrical energy from the anesthesia machine 100 or to communicate with the anesthesia machine 100, so that the anesthesia machine 100 can provide power or communication control for the ventilation device 200.

[0080] Exemplarily, the ventilation device 200 is connected to the anesthesia machine 100 through the input interface and the auxiliary output interface, so that the human-machine interaction device on the anesthesia machine 100 can be used to receive the respiratory support mode provided by the ventilation device 200 to the patient 400. For example, a trigger button for providing different respiratory support modes can be displayed on the human-machine interaction device. The anesthesia machine 100 can decide whether to use the ventilation device 200 to provide periodic respiratory support to the patient 400, or to use the first ventilation control device 104 to control the breathing circuit 103 to provide periodic anesthetic breathing support to the patient 400, or to use both to provide respiratory support to different patients 400 at the same time, according to the respiratory support mode received by the human-machine interaction device.

[0081] In an optional embodiment, the attachment position is further provided with a gas source connector for providing the first gas, and the ventilation device 200 further includes a gas source interface 300 for providing the third gas. After the ventilation device 200 is coupled with the anesthesia machine 100, the gas source interface 300 is communicated with the gas source connector to receive the first gas through the gas source connector to replace the third gas, and there is no need to add a new gas source module, and gas can be directly supplied to the ventilation device 200 through the gas source module on the anesthesia machine 100.

[0082] In an optional embodiment, the anesthesia machine 100 includes a gas source module, which is used to provide the gas required by the anesthesia machine 100, that is, to provide the first gas. After the ventilation device 200 is coupled to the anesthesia machine 100, the gas source interface 300 is connected to the gas source connector, so that the gas source module can supply gas to the ventilation device 200 through the gas source connector. Among them, the gas source module can also be an air compressor, an oxygen generator, etc., which generates the first gas required by the anesthesia machine 100 by itself. Alternatively, the gas source module can also be a gas supply interface, which is used to connect to an external gas source, and the external gas source provides the gas required by the anesthesia machine 100 to the anesthesia machine 100 and / or the ventilation device 200 through the gas supply interface.

[0083] In an optional embodiment, the anesthesia machine 100 includes a first communication module, and the ventilation device 200 includes a second communication module. The second communication module is used to establish a communication connection with the first communication module to achieve selective coupling of the ventilation device 200 and the anesthesia machine 100, so that the anesthesia system can receive the operation of the ventilation device 200 through the anesthesia machine 100 to control the ventilation device 200 to provide periodic respiratory support to the patient 400. There is no need to add an operating system and a human-computer interaction device to control the ventilation device 200, which effectively reduces the manufacturing cost of the anesthesia system; at the same time, it is also convenient for medical staff to use it without adapting to a new operating system or operating interface, that is, the user can operate the ventilation device 200 through the human-computer interaction device of the anesthesia machine 100.

[0084] like Fig.13a As shown, Fig.13a A display interface provided for the human-machine interaction device, the display interface can display working information of the ventilation device 200 and / or provide a control interface of the ventilation device 200, and the control interface is used to receive user input to control the ventilation device 200.

[0085] Specifically, the main monitoring interface on the display interface includes a ventilation mode switching area P1. When it is desired to use the anesthesia system to provide periodic respiratory support, the "HFJV" icon in the ventilation mode switching area P1 can be selected, and the "SETMODE" icon can be used to confirm to complete the selection of the periodic respiratory support method. At this time, the ventilation device 200 can be controlled to start and provide periodic high-frequency jet ventilation to the patient 400. The pressure monitored during the high-frequency jet ventilation will be displayed in the pressure waveform area P2 of the main monitoring interface. When it is desired to use the anesthesia machine 100 to provide periodic anesthetic breathing support, other ventilation mode icons in the ventilation mode switching area P1, such as the "VCV" icon, can be selected. At this time, the first ventilation control device 104 can control the breathing circuit 103 to provide periodic anesthetic breathing support to the patient 400.

[0086] In an optional embodiment, if Figures 1 to 5 As shown, the anesthesia machine 100 includes a gas source connector for providing a first gas, and the ventilation device 200 also includes a gas source interface 300, which is used to communicate with the gas source connector to achieve selective coupling between the ventilation device 200 and the anesthesia machine 100.

[0087] It should be noted that the ventilation device 200 can also be connected to an external gas source through the gas source interface 300, such as a gas delivery pipeline or gas cylinder in a hospital. The gas source interface 300 includes but is not limited to an oxygen interface 300a and an air interface 300b.

[0088] In an optional embodiment, the ventilation method provided by the ventilation device 200 may be high-frequency ventilation, which mainly forms a high-frequency airflow by switching the flow rate according to a certain frequency through the second ventilation control device. Here, "high-frequency airflow" refers to gas whose output frequency is greater than a certain critical value, such as gas whose output frequency is greater than or equal to 2 Hz, or gas whose output frequency is greater than or equal to 3 Hz.

[0089] like Figures 1 to 14As shown, according to the second aspect of the present application, the present application provides an anesthesia system, including an anesthesia machine 100 and a ventilation device 200 detachably mounted on the anesthesia machine 100, the anesthesia machine 100 including a flow monitoring device 101, an anesthetic delivery device 102, a breathing circuit 103 and a first ventilation control device 104, the flow monitoring device 101 is used to adjust the flow of a first gas, the anesthetic delivery device 102 is used to mix the first gas with an anesthetic to obtain a second gas, and deliver the second gas to the breathing circuit 103, the breathing circuit 103 is used to deliver the second gas to a patient 400, the first ventilation control device 104 is used to control the breathing circuit 103 to deliver the second gas to the patient 400, thereby providing periodic anesthetic breathing support for the patient 400, and the ventilation device 200 is used to provide periodic breathing support to the patient 400.

[0090] Specifically, the anesthesia machine 100 has an attachment position configured to engage with the ventilation device 200, and the ventilation device 200 is detachably mounted on the attachment position. In this embodiment, the ventilation device 200 includes a second shell, a second ventilation control device and a gas delivery branch, the gas delivery branch is used to receive the third gas and provide periodic respiratory support to the patient 400, and the second ventilation control device 202 switches the flow rate at a preset frequency to control the gas delivery branch to provide periodic respiratory support to the patient 400. Among them, the second ventilation control device and the gas delivery branch are both arranged on the second shell, and the second shell is detachably mounted on the attachment position, so that the ventilation device 200 can be installed on the anesthesia machine 100 to provide corresponding respiratory support to the patient 400 according to the needs of the clinical scenario.

[0091] After adopting the above technical solution, since the anesthesia machine 100 has an attachment position that is configured to engage with the ventilation device 200, so that the ventilation device 200 can be detachably installed on the anesthesia machine 100, not only can the ventilation device 200 be quickly fixed to the anesthesia machine 100, but also the space occupied by the anesthesia machine 100 will not be increased, and the anesthesia system realizes the compatibility of the functions of the anesthesia machine 100 itself and the functions added by the ventilation device 200.

[0092] In an optional embodiment, a first coupling member is provided at the attachment position of the anesthesia machine 100, and a second coupling member is provided on the ventilation device 200. The first coupling member is coupled with the second coupling member to achieve coupling of the ventilation device 200 and the anesthesia machine 100 at the attachment position, so that the ventilation device 200 can be quickly installed on the anesthesia machine 100.

[0093] Among them, the coupling of the first coupling member and the second coupling member may include mechanical coupling between the ventilation device 200 and the anesthesia machine 100, and may also include circuit or gas coupling between the ventilation device 200 and the anesthesia machine 100, so that the anesthesia machine 100 can provide gas source, power supply and / or communication support for the ventilation device 200, and this application is not limited.

[0094] In an optional embodiment, the first engaging member includes a fixed structure arranged at the attachment position of the anesthesia machine 100, and the second engaging member includes a matching structure configured to match the fixed structure, and the matching structure is connected to the fixed structure. Among them, one of the fixed structure and the matching structure can be a magnetic adsorption member, and the other of the fixed structure and the matching structure is a metal adsorption member or a magnetic adsorption member, so that the ventilation device 200 can be adsorbed on the anesthesia machine 100 through the matching of the matching structure and the fixed structure; or, one of the fixed structure and the matching structure is a buckle part, and the other of the fixed structure and the matching structure is a slot part, so that the ventilation device 200 can be connected to the anesthesia machine 100 through the matching of the matching structure and the fixed structure; or, one of the fixed structure and the matching structure is a Velcro hook surface, and the other of the fixed structure and the matching structure is a Velcro fur surface, so that the ventilation device 200 can be attached to the anesthesia machine 100 through the matching of the matching structure and the fixed structure.

[0095] In an optional embodiment, the fixing structure includes a support arm arranged on the outside or inside of the anesthesia machine 100, and the ventilation device 200 is fixed to the support arm through a matching structure; or, the fixing structure includes a recessed structure arranged on the outside or inside of the anesthesia machine 100, and the ventilation device 200 is embedded in the recessed structure through a matching structure; or, the attachment position is a notch or a slot arranged on the outside of the anesthesia machine 100, and the fixing structure includes a connecting piece arranged in the notch or the slot, and the ventilation device 200 forms a detachable connection with the connecting piece through the matching structure.

[0096] In an optional embodiment, the ventilation device 200 further includes a gas source interface 300 for providing a third gas, and the gas source interface 300 is connected to the second ventilation control device through a gas delivery branch. The first joint includes a gas source connector disposed at the attachment position, and the second joint includes the gas source interface 300, which is connected to the gas source connector, so that the anesthesia machine 100 can provide the first gas to the gas source interface 300 through the gas source connector to replace the third gas, and the ventilation device 200 can also be fixed on the anesthesia machine 100 through the connection between the gas source connector and the gas source interface 300.

[0097] Alternatively, the gas source interface 300 is connected to an external gas source. In this case, the gas source interface 300 is only used to provide the third gas to the ventilation device 200, and the ventilation device 200 needs to be fixed on the anesthesia machine 100 through the cooperation of the first joint member and the second joint member.

[0098] In an optional embodiment, the ventilation device 200 also includes an output port, and the second ventilation control device is connected to the output port, so that the third gas output from the output port can form a periodic airflow. Wherein, the first joint also includes an output connector arranged at the attachment position, and the second joint includes the above-mentioned output port, and the output port is connected to the output connector, so that the third gas is output to the inside of the anesthesia machine 100 through the output port and the output connector, and then the anesthesia machine 100 provides periodic respiratory support to the patient 400, which can not only reduce the ventilation accessories of the ventilation device 200, that is, the ventilation device 200 only needs to be provided with a second ventilation control device on the gas delivery branch, and the remaining ventilation accessories can be shared with the anesthesia machine 100 or attached to the ventilation accessories of the anesthesia machine 100, such as the pressure regulating valve, flow monitoring device 101, pressure monitoring device and safety valve 205 inside the anesthesia machine 100, which effectively reduces the manufacturing cost of the ventilation device 200, and the ventilation device 200 can also be fixed on the anesthesia machine 100 by the cooperation of the output port and the output connector.

[0099] Alternatively, the output port of the ventilation device 200 is connected to the injection attachment 207, so that the third gas can be output through the injection attachment 207, that is, the ventilation device 200 can ventilate the patient 400 separately according to the actual situation and ventilation needs of the patient 400. Of course, the injection attachment 207 can also be a part of the accessories of the anesthesia machine 100, that is, the anesthesia machine 100 includes the injection attachment 207 connected to the ventilation device 200. In addition, the ventilation device 200 needs to be fixed on the anesthesia machine 100 through the cooperation of the first joint member and the second joint member.

[0100] In an optional embodiment, the anesthesia machine 100 further includes a gas source module for providing the first gas, and the gas source module is connected to the anesthetic delivery device 102 via the flow monitoring device 101. The ventilation device 200 further includes a gas source interface 300, and the ventilation device 200 is connected to the gas source module via the gas source interface 300, so that the gas source module can provide the ventilation device 200 with the first gas.

[0101] The gas source module is used to provide the gas required by the anesthesia machine 100, that is, to provide the first gas. After the ventilation device 200 is coupled to the anesthesia machine 100, the gas source module can also supply gas to the ventilation device 200 through the gas source interface 300. The gas source module can also be an air compressor, an oxygen generator, etc., which can generate the first gas required by the anesthesia machine 100 by itself. Alternatively, the gas source module can also be a gas supply interface, which is used to connect an external gas source, and the external gas source provides gas to the anesthesia machine 100 and / or the ventilation device 200 through the gas supply interface.

[0102] In an optional embodiment, if Figure 8 As shown, the gas source module includes an oxygen unit, and the first gas includes oxygen provided by the oxygen unit; wherein the gas delivery branch includes an oxygen branch 200a, and the gas source interface 300 includes an oxygen interface 300a, one end of the oxygen gas circuit 200a is connected to the oxygen interface 300a, and oxygen is input from the oxygen interface, and the other end of the oxygen branch 200a delivers the input oxygen to the second ventilation control device, and the second ventilation control device switches the flow rate at a set frequency, which can be used to control the oxygen flow rate of the oxygen branch, and can also make the oxygen output from the output port form a high-frequency airflow, thereby providing periodic high-frequency ventilation for the patient 400. The second ventilation control device, for example, includes a second control valve 202.

[0103] In an optional embodiment, if Fig.10 As shown, the gas source module includes an air unit, and the first gas includes air provided by the air unit; wherein the gas delivery branch includes an air branch 200b, and the gas source interface 300 includes an air interface 300b, one end of the air branch 200b is connected to the air interface, and air is input from the air interface, and the other end of the air branch delivers the input air to the second ventilation control device, and the second ventilation control device switches the flow rate at a set frequency, which can be used to control the air flow of the air branch, and can also form a high-frequency airflow at the output port, thereby providing periodic high-frequency ventilation for the patient 400. The second ventilation control device, for example, includes a second control valve 202.

[0104] In an optional embodiment, if Fig.11As shown, the gas source module includes an oxygen unit for providing oxygen and an air unit for providing air, and the first gas includes oxygen provided by the oxygen unit and air provided by the air unit; wherein the gas delivery branch includes an oxygen branch 200a, an air branch 200b and a mixed gas circuit 200c, and the gas source interface 300 includes an oxygen interface 300a and an air interface 300b, the air inlet end of the oxygen branch is connected to the oxygen interface 300a, and oxygen is input from the oxygen interface 300a; the air inlet end of the air branch is connected to the air interface 300b, and air is input from the air interface 300b; the ends of the oxygen branch 200a and the air branch 200b are connected to the mixed gas circuit 200c, and the mixed gas circuit mixes the oxygen input from the oxygen branch and the air input from the air branch and delivers them to the second ventilation control device, and the second ventilation control device switches the flow rate at a set frequency, and the gas output from the output port forms a high-frequency airflow, thereby providing periodic high-frequency ventilation for the patient 400. The second ventilation control device, for example, includes a second control valve 202. The ventilation device 200 further includes a second regulating valve and a third regulating valve. The second regulating valve is installed on the oxygen branch to control the oxygen flow of the oxygen branch; the third regulating valve is installed on the air branch to control the air flow of the air branch.

[0105] In an optional embodiment, the gas source module includes an oxygen unit for providing oxygen and an air unit for providing air, and the first gas includes oxygen provided by the oxygen unit and air provided by the air unit. Among them, the gas delivery branch includes an oxygen branch, an air branch and a mixed gas path, the gas source interface 300 includes an oxygen interface 300a and an air interface 300b, the second ventilation control device includes a first control valve 202a and a third control valve 202b, the air inlet end of the oxygen branch is connected to the oxygen interface 300a, oxygen is input from the oxygen interface 300a and delivered to the first control valve 202a, the first control valve 202a switches the flow rate at a set frequency, which can be used to control the oxygen flow of the oxygen branch, and also to make the output of the first control valve 202a The oxygen at the end forms a high-frequency airflow; the air inlet end of the air branch is connected to the air interface 300b, and air is input from the air interface 300b and delivered to the third control valve 202b. The third control valve 202b switches the flow rate at a set frequency, which can be used to control the air flow of the air branch and also make the air output from the output end of the third control valve 202b form a high-frequency airflow; the mixed air circuit mixes the oxygen input by the first control valve 202a and the air input by the third control valve 202b and delivers them to the patient 400, so as to provide periodic high-frequency ventilation.

[0106] In an optional embodiment, if Figure 8 and Fig.11As shown, the ventilation device 200 further includes a pressure stabilizing device 201 , which is disposed at the gas source interface 300 to provide stable gas for the ventilation device 200 .

[0107] In an optional embodiment, the pressure stabilizing device 201 includes a first pressure stabilizing valve 201a and a second pressure stabilizing valve 201b. The first pressure stabilizing valve 201a is arranged on the oxygen branch to provide stable oxygen for the oxygen branch; the second pressure stabilizing valve 201b is arranged on the air branch to provide stable air for the air branch.

[0108] In an optional embodiment, the ventilation device 200 further includes a pressure monitoring device, which is disposed in the gas delivery branch and is used to monitor the pressure of the gas delivery branch.

[0109] Exemplarily, the pressure monitoring device includes a first pressure monitoring device 203, a second pressure monitoring device 206 and a third pressure monitoring device 208. The first pressure monitoring device 203 is arranged in the gas delivery branch to monitor the pressure of the gas delivery branch; the second pressure monitoring device 206 is arranged at the rear end of the second ventilation control device 202 to monitor the pressure of the gas output by the second ventilation control device; the third pressure monitoring device 208 is arranged at the patient end to monitor the pressure at the patient end to prevent barotrauma at the patient end.

[0110] In an optional embodiment, the first pressure monitoring device 203 includes a first oxygen pressure sensor 203a and a first air pressure sensor 203b. The first oxygen pressure sensor 203a is arranged on the oxygen branch to monitor the pressure of the oxygen branch; the first air pressure sensor 203b is arranged on the air branch to monitor the pressure of the air branch.

[0111] In an optional embodiment, the ventilation device 200 further includes a flow sensor 204, which is disposed between the pressure stabilizing device 201 and the second ventilation control device and is used to monitor the flow rate of the gas delivery branch.

[0112] In an optional embodiment, the flow sensor 204 includes a first flow sensor 204a and a second flow sensor 204b. The first flow sensor 204a is arranged on the oxygen branch to monitor the flow size of the oxygen branch; the second flow sensor 204b is arranged on the air branch to monitor the flow size of the air branch.

[0113] In an optional embodiment, the ventilation device 200 further includes a safety valve 205, and the ventilation device 200 includes an output port connected to the second ventilation control device. The safety valve 205 is arranged between the second ventilation control device and the output port for depressurizing the gas delivery branch.

[0114] Exemplarily, when the pressure value monitored by the third pressure monitoring device 208 is abnormal, the safety valve 205 is switched to separate the patient end from the ventilation device 200, and at the same time, the gas at the patient end can be discharged through the ventilation device 200 to prevent barotrauma at the patient end.

[0115] In an optional embodiment, the anesthesia machine 100 also includes a human-computer interaction device. After the ventilation device 200 is coupled or installed on the anesthesia machine 100, the ventilation mode provided by the human-computer interaction device also includes periodic breathing support provided by the ventilation device 200. When the ventilation mode received by the human-computer interaction device is periodic breathing support, the anesthesia machine 100 controls the ventilation device 200 to periodically output a third gas. There is no need to add an operating system and a human-computer interaction device to control the ventilation device 200, which effectively reduces the manufacturing cost of the anesthesia system; at the same time, it is also convenient for medical staff to use it without adapting to a new operating system or operating interface, that is, the user can operate the ventilation device 200 through the human-computer interaction device of the anesthesia machine 100.

[0116] In an optional embodiment, after the ventilation device 200 is removed from the attachment position of the anesthesia machine 100, the ventilation device 200 independently provides periodic respiratory support, and the ventilation mode provided by the human-machine interaction device no longer includes periodic respiratory support or the ventilation mode of periodic respiratory support provided by the human-machine interaction device cannot be operated.

[0117] For example, Fig.13a As shown, Fig.13a A display interface provided for the human-machine interaction device, the display interface can display working information of the ventilation device 200 and / or provide a control interface of the ventilation device 200, and the control interface is used to receive user input to control the ventilation device 200.

[0118] Specifically, the main monitoring interface on the display interface includes a ventilation mode switching area P1. When it is desired to provide periodic respiratory support, the "HFJV" icon in the ventilation mode switching area P1 can be selected, and the "SET MODE" icon can be used to confirm to complete the selection of the periodic respiratory support method. At this time, the ventilation device 200 can be controlled to start and provide periodic high-frequency jet ventilation to the patient 400. The pressure monitored during the high-frequency jet ventilation will be displayed in the pressure waveform area P2 of the main monitoring interface. When it is desired to use the anesthesia machine 100 to provide periodic anesthetic breathing support, other ventilation mode icons in the ventilation mode switching area P1, such as the "VCV" icon, can be selected. At this time, the first ventilation control device 104 can control the breathing circuit 103 to provide periodic anesthetic breathing support to the patient 400.

[0119] When the ventilation device 200 is removed from the attachment position of the anesthesia machine 100, the ventilation mode switching area P1 of the main monitoring interface no longer supports the selection operation of the periodic respiratory support provided by the ventilation device 200, for example, the ventilation mode of periodic respiratory support is not displayed, or the ventilation mode of periodic respiratory support provided by the human-computer interaction device cannot be operated.

[0120] In an optional embodiment, if Figures 1 to 14 As shown, the ventilation device 200 communicates with the anesthesia machine 100 in a wired or wireless manner. For example, the anesthesia machine 100 is provided with an information input interface, and the corresponding position of the ventilation device 200 is provided with an information output interface. When the ventilation device 200 is installed on the anesthesia machine 100, the information output interface on the ventilation device 200 is connected to the information input interface, thereby realizing data transmission between the ventilation device 200 and the anesthesia machine 100. The working information of both can also be displayed through the human-computer interaction device located on the anesthesia machine 100, or the user can control the anesthesia machine 100 and the ventilation device 200 through the human-computer interaction device.

[0121] In an optional embodiment, the anesthesia machine 100 also includes a first human-computer interaction device, and the working information of the ventilation device 200 is displayed through the first human-computer interaction device on the anesthesia machine 100. The user can obtain the working status of the ventilation device through the first human-computer interaction device without switching screens.

[0122] In an optional embodiment, the ventilation device 200 also includes a second human-computer interaction device, which is used to provide a display interface that displays working information or provides a control interface; the first human-computer interaction device is also used to display the same display interface in a display window or display area, so that a user who is familiar with the ventilation device 200 does not need to change his operating habits when operating the ventilation device 200 on the anesthesia machine 100.

[0123] In an optional embodiment, the same display interface of the human-computer interaction device of the anesthesia machine 100 includes an anesthesia machine setting area for receiving user input for ventilation control of the anesthesia machine 100, and a ventilation device setting area for receiving user input for ventilation control of the ventilation device, that is, the same interface of the human-computer interaction device includes an anesthesia machine setting area and a ventilation device setting area, the anesthesia machine setting area is used to receive user input for ventilation control of the anesthesia machine 100, and the ventilation device setting area is used to receive user input for ventilation control of the ventilation device 200.

[0124] In an optional embodiment, a trigger switch is provided on the ventilation device 200; after the trigger switch is triggered, the ventilation device 200 can establish a wireless connection with the anesthesia machine 100.

[0125] Exemplarily, when the ventilation device 200 is installed at the attachment position of the anesthesia machine 100, the ventilation device 200 will not actively establish a wireless connection with the anesthesia machine 100, and needs to be triggered by a trigger switch to avoid the anesthesia machine 100 and the ventilation device 200 establishing an association when coupling is not required.

[0126] In an optional embodiment, an auxiliary output interface is provided on the anesthesia machine 100, and an input interface is provided on the ventilation device 200, and the input interface is connected to the auxiliary output interface; wherein the auxiliary output interface includes an auxiliary signal output interface and / or an auxiliary power output interface, and the input interface includes a signal input interface and / or a power input interface, and the signal input interface and the power input interface are correspondingly connected to the auxiliary signal output interface and the auxiliary power output interface, so that the anesthesia machine 100 can supply power to the ventilation device 200 and realize communication connection with the ventilation device 200.

[0127] In an optional embodiment, an auxiliary output interface is provided on the anesthesia machine 100, and an input interface is provided on the ventilation device 200, and the input interface is connected to the auxiliary output interface; wherein the auxiliary output interface includes an auxiliary power output interface, and the input interface includes a power input interface, and the power input interface is connected to the auxiliary power output interface so that the anesthesia machine 100 supplies power to the ventilation device 200; the anesthesia machine 100 and the ventilation device 200 also include a wireless communication module so that the anesthesia machine 100 and the ventilation device 200 can communicate with each other.

[0128] In an optional embodiment, the anesthesia system further includes a control terminal, which is in communication with the anesthesia machine 100 and the ventilation device 200. The control terminal sends an anesthesia machine control instruction to the anesthesia machine 100 according to the anesthesia machine 100 control information input by the user, and sends a ventilation device control instruction to the ventilation device 200 according to the ventilation device control information input by the user; the anesthesia machine 100 controls the periodic anesthesia breathing support for the patient 400 according to the anesthesia machine control instruction; and the ventilation device 200 controls the periodic breathing support for the patient 400 according to the ventilation device 200 control instruction.

[0129] In an optional embodiment, the second ventilation control device is controlled to ventilate the patient 400 at a first ventilation frequency, thereby providing periodic respiratory support for the patient 400. The first ventilation frequency may be greater than or equal to 2 Hz, or greater than or equal to 3 Hz.

[0130] In an optional embodiment, the ventilation accessory of the ventilation device 200 includes a jet accessory 207, which receives the third gas output by the gas delivery branch and outputs the third gas in the form of a high-frequency jet gas flow. The jet accessory 207 may include a nozzle, a spray needle, or a bracket (such as a bronchoscope, a bronchoscope, a sheath), etc. The bracket is used to support human tissue or connect a tracheal tube to facilitate surgery by doctors, and a hole for jetting (for example, the hole diameter is less than 4 mm) is provided on the wall of the bracket.

[0131] In an optional embodiment, the spray attachment 207 includes a spray channel having an output aperture of less than 4 mm.

[0132] In an optional embodiment, the ventilation frequency of the high-frequency jet airflow to ventilate the patient 400 is 50-1500 bpm.

[0133] like Figures 1 to 14 As shown, according to the second aspect of the present application, the present application provides an anesthesia machine 100, including a flow monitoring device 101, an anesthetic delivery device 102, a breathing circuit 103 and a first ventilation control device 104; wherein, the flow monitoring device 101 is used to adjust the flow of a first gas; the anesthetic delivery device 102 is used to mix the first gas with the anesthetic to obtain a second gas, and deliver the second gas to the breathing circuit 103; the breathing circuit 103 is used to deliver the second gas to the patient 400; the first ventilation control device 104 is used to control the breathing circuit 103 to deliver the second gas to the patient 400, thereby providing periodic anesthetic breathing support for the patient 400.

[0134] In this embodiment, the anesthesia machine 100 has an attachment position that is configured to be provided with a first coupling member, and the first coupling member includes at least one of the following: a fixed structure for connecting the external ventilation device 200 to the anesthesia machine 100, a gas source connector for delivering the first gas to the external ventilation device 200, an auxiliary power output interface for providing electrical energy to the external ventilation device 200, and an auxiliary signal output interface for transmitting signals with the external ventilation device 200.

[0135] Exemplarily, the first engaging member includes a fixed structure for connecting the external ventilation device 200 to the anesthesia machine 100, and the ventilation device 200 is provided with a second engaging member, and the second engaging member includes a matching structure configured to match with the fixed structure, and the matching structure is connected to the fixed structure. Among them, one of the fixed structure and the matching structure can be a magnetic adsorption member, and the other of the fixed structure and the matching structure is a metal adsorption member or a magnetic adsorption member, so that the ventilation device 200 can be adsorbed on the anesthesia machine 100 through the matching of the matching structure and the fixed structure; or, one of the fixed structure and the matching structure is a buckle part, and the other of the fixed structure and the matching structure is a slot part, so that the ventilation device 200 can be connected to the anesthesia machine 100 through the matching of the matching structure and the fixed structure; or, one of the fixed structure and the matching structure is a Velcro hook surface, and the other of the fixed structure and the matching structure is a Velcro fur surface, so that the ventilation device 200 can be attached to the anesthesia machine 100 through the matching of the matching structure and the fixed structure.

[0136] In an optional embodiment, the fixing structure includes a support arm arranged on the outside or inside of the anesthesia machine 100, and the ventilation device 200 is fixed to the support arm through a matching structure; or, the fixing structure includes a recessed structure arranged on the outside or inside of the anesthesia machine 100, and the ventilation device 200 is embedded in the recessed structure through a matching structure; or, the attachment position is a notch or a slot arranged on the outside of the anesthesia machine 100, and the fixing structure includes a connecting piece arranged in the notch or the slot, and the ventilation device 200 forms a detachable connection with the connecting piece through the matching structure.

[0137] Exemplarily, the fixed structure includes a support arm arranged on the outside of the anesthesia machine 100, and the ventilation device 200 is fixed to the support arm through a matching structure; or, the fixed structure includes a support arm arranged on the inside of the anesthesia machine 100, and the ventilation device 200 is fixed to the support arm on the inside of the anesthesia machine 100 through a matching structure. Alternatively, the fixed structure includes a recessed structure arranged on the outside of the anesthesia machine 100, and the ventilation device is embedded in the recessed structure through a matching structure; or, the fixed structure includes a recessed structure arranged on the inside of the anesthesia machine 100, and the ventilation device is embedded in the inside of the anesthesia machine 100 through the matching structure and the recessed structure; or, the attachment position is a notch arranged on the outside of the anesthesia machine 100, the fixed structure includes a connector arranged in the notch, and the ventilation device 200 is detachably connected to the connector through the matching structure. Alternatively, the attachment position is a slot arranged on the outside of the anesthesia machine 100, the fixed structure includes a connector arranged in the slot, and the ventilation device 200 is detachably connected to the connector through the matching structure.

[0138] like Figures 1 to 14As shown, according to the third aspect of the present application, the anesthesia machine 100 provided by the present application includes a gas source module, an anesthetic delivery device 102 , a breathing circuit 103 and a first ventilation control device 104 .

[0139] The gas source module is used to provide the gas required by the anesthesia machine, that is, to provide the first gas. Because it is necessary to provide respiratory support for the patient, the gas provided contains at least oxygen. That is, the first gas can be oxygen, or air, or a mixture of oxygen and air, or a mixture of oxygen and nitrous oxide. The gas source module can be a gas source interface 300', and the gas source interface 300' is used to connect an external gas source. The external gas source provides the gas required by the anesthesia machine to the anesthesia machine through the gas source interface. The gas source module can also be an air compressor, an oxygen generator, etc., which produces the first gas required by the anesthesia machine by itself. The subsequent embodiments are explained using the gas source interface as an example. The anesthetic delivery device 102 is used to mix the first gas provided by the gas source module with the anesthetic, and control the anesthetic concentration of the mixed gas (second gas), and deliver the mixed gas (second gas) to the breathing circuit 103. The anesthetic delivery device 102 includes a vaporizer.

[0140] The breathing circuit 103 is an air circuit connecting the anesthetic delivery device 102 and the patient, and can recycle the gas exhaled by the patient to save anesthetics and reduce environmental pollution. It can be connected to various connecting catheters and accessories, and the accessories can be endotracheal tubes, endotracheal tubes with air bags at the ends, etc. A gas purification device can be provided in the breathing circuit 103, and the gas purification device is used to remove at least part of the carbon dioxide exhaled by the patient into the breathing circuit. For example, a CO2 absorbent (soda lime) can be provided in the gas purification device. The CO2 absorbent reacts with CO2 to achieve the purpose of removing CO2, and the reaction generates water and heat at the same time, which is conducive to maintaining the temperature and humidity of the patient's inhaled gas.

[0141] The first ventilation control device (i.e., anesthesia ventilation control device) 104 is used to control the breathing circuit 103 so that the mixed gas (second gas) is periodically delivered to the patient, thereby providing periodic anesthesia breathing support for the patient. For example, the first ventilation control device 104 may include a plurality of valves and a board for driving the plurality of valves. The board controls the plurality of valves to periodically deliver the second gas to the patient, thereby providing periodic anesthesia breathing support for the patient.

[0142] During the operation of the anesthesia machine, the gas source module provides the first gas, which is mixed by the flow monitoring device, and then the anesthetic is added and the concentration is adjusted by the evaporator to form the second gas; the second gas enters the breathing circuit 103, and the first ventilation control device 104 performs ventilation control to deliver the second gas to the patient, and the waste gas exhaled by the patient is purified by the gas purification device and then discharged or recycled; during the above process, the anesthesia machine will also monitor the machine status and patient parameters to ensure patient safety and issue abnormal alarms.

[0143] In an optional embodiment, the anesthesia machine 100 further includes an anesthesia machine mainframe and a ventilation device 200, at least part of which is disposed inside the anesthesia machine mainframe. The ventilation device 200 switches the flow rate at a set frequency to provide periodic respiratory support for the patient. The present invention integrates the ventilation device 200 that can provide periodic respiratory support into the anesthesia machine, so that the anesthesia machine can provide periodic respiratory support and / or provide periodic anesthetic respiratory support.

[0144] For example, in some specific scenarios, such as when the inhalation anesthesia function of the anesthesia machine is not needed, or when laryngeal surgery is required, the ventilation device 200 of the anesthesia machine can be used to provide respiratory support for the patient, thereby increasing the application scope of the anesthesia machine. At the same time, no additional equipment is needed, eliminating the problem of managing multiple devices. The anesthesia machine integrated with the ventilation device 200 of the present application is similar to a single-device version of an anesthesia system.

[0145] The periodic respiratory support provided by the ventilation device 200 may be high-frequency ventilation (for example, the ventilation device includes a gas delivery branch, the gas delivery branch receives gas, and provides respiratory support to the patient at a first ventilation frequency), or low-frequency ventilation, etc. The ventilation mode of the ventilation device 200 may be jet ventilation or non-jet ventilation; when jet ventilation is provided, the ventilation device 200 may further provide high-frequency jet ventilation. This is described in detail below through some embodiments.

[0146] like Figure 6As shown, the ventilation device 200 can be directly connected to the gas source module or indirectly connected, in short, it can be connected. The ventilation device 200 is used to provide periodic respiratory support to the patient using the first gas (such as oxygen and / or air) provided by the gas source module. It should be noted that although the present application uses the first gas when describing the respiratory support provided by the anesthetic respiratory support and the respiratory support provided by the ventilation device; however, the present application does not limit the first gas used in the two different ventilation processes of the anesthetic respiratory support and the respiratory support provided by the ventilation device to be exactly the same; on the contrary, based on the necessity of patient ventilation, the first gas used in the above two processes can be oxygen-containing gas. Similarly, although the auxiliary gas supply process mentioned below also uses the first gas, the present application does not limit the first gas used by the three to be the same, and the same oxygen-containing gas can be used. For example, the first gas used in the anesthetic respiratory support process is oxygen and air, and the first gas used when the ventilation device provides respiratory support can be oxygen and air, or it can be only oxygen. For example, the first gas used in the anesthetic respiratory support process is oxygen and air, and the first gas used when the ventilation device provides respiratory support is humidified oxygen and air. The first gas used in the anesthesia breathing support and the breathing support provided by the ventilation device comes from the gas source module. In each ventilation process, according to the gas type selected by the user, the gas source module is correspondingly selected with the anesthesia machine to achieve gas output. Similarly, the gas source modules selected in the anesthesia breathing support process and the breathing support process provided by the ventilation device are not limited to being exactly the same, as long as the selected gas source modules can provide oxygen-containing gas.

[0147] In some usage scenarios, the human-machine interaction device provided by the anesthesia machine 100 can be used to receive the breathing support mode provided by the anesthesia machine to the patient. Fig.13a and Fig.13b ) provides trigger buttons for different breathing support modes.

[0148] The anesthesia machine can decide whether to use the ventilation device 200 to provide periodic respiratory support to the patient, or to use the first ventilation control device to control the breathing circuit to provide periodic anesthetic breathing support to the patient, or to use both to provide respiratory support to different patients at the same time, based on the respiratory support mode received by the human-computer interaction device.

[0149] Among them, the "periodic respiratory support" and "periodic anesthesia respiratory support" mentioned in this application represent two different respiratory support methods, and the specific definitions have been explained in the previous embodiments and will not be repeated here.

[0150] The ventilation device 200 can be connected to various accessories, such as spray accessories, nasal plugs, nasal masks, face masks, etc. Doctors can connect appropriate accessories and perform corresponding ventilation methods according to the patient's actual situation and ventilation needs, which is very convenient.

[0151] The ventilation device 200 can be implemented in a variety of ways, such as Figures 6 to 12 As shown, in the periodic respiratory support provided, the specific ventilation mode can be high-frequency ventilation and / or jet ventilation, wherein the jet ventilation can be high-frequency jet ventilation or low-frequency jet ventilation (also referred to as normal frequency jet ventilation). The expression "high-frequency / jet ventilation" used herein refers to high-frequency ventilation or jet ventilation (jet ventilation includes high-frequency jet ventilation and low-frequency jet ventilation). The following is an illustration through some embodiments.

[0152] Embodiment 1:

[0153] In this embodiment, the ventilation method provided by the ventilation device 200 is high-frequency ventilation. For example, the ventilation device 200 includes a high-frequency ventilation device.

[0154] The high-frequency ventilation device is used to ventilate the patient at a first ventilation frequency (for example, greater than or equal to 3 Hz), thereby providing periodic respiratory support for the patient. Figure 8 and Fig. 9 As shown, the high-frequency ventilation device may include a gas delivery branch 200a, a second control valve 202, and an output port 209. The high-frequency ventilation device receives the first gas through the gas delivery branch. The second control valve 202 is disposed in the gas delivery branch 200a and is controlled to switch the flow rate at a switching frequency of, for example, at least 3 Hz, so that the first gas output from the output port 209 forms a high-frequency airflow. The expression "high-frequency airflow" used herein refers to a gas whose output frequency is greater than a certain critical value, for example, a gas whose output frequency is greater than or equal to 3 Hz.

[0155] The ventilation frequency (flow switching frequency or valve opening switching frequency) of the second control valve 202 can be preset. The second control valve 202 is used for high-frequency ventilation control (such as high-frequency switching between two different valve flows, one large and one small, with a frequency of more than 3 Hz, for example, between 3-20 Hz), so that the first gas forms a high-frequency pulse airflow, which can be used to perform high-frequency jet ventilation on the patient after passing through the subsequent jet attachment. If the jet attachment is not connected subsequently, the high-frequency pulse airflow can be used to perform high-frequency ventilation on the patient. The second control valve 202 can be a solenoid valve, an electromagnetic servo valve, an electromagnetic switch valve, or an electromagnetic proportional valve.

[0156] In this embodiment, the high-frequency ventilation device provides periodic respiratory support at a first ventilation frequency, and the first ventilation control device 104 controls the breathing circuit 103 to provide periodic anesthetic respiratory support at a third ventilation frequency. The first ventilation frequency is greater than the third ventilation frequency, for example, the first ventilation frequency is greater than or equal to 3 Hz, and the third ventilation frequency is less than 3 Hz.

[0157] There are many ways to implement high-frequency ventilation devices, such as Figures 6 to 12 As shown, they are introduced one by one below.

[0158] like Fig. 9 As shown, the first gas may include oxygen. The gas source module includes an oxygen unit for providing oxygen, for example, the oxygen unit is an oxygen interface or an oxygen concentrator, etc. The oxygen interface is used to connect an external oxygen source, such as an oxygen interface connected to an oxygen delivery pipeline, an oxygen cylinder, etc. in a hospital. The gas delivery branch includes an oxygen branch, that is, the ventilation device 200 or the high-frequency ventilation device includes: an oxygen branch 200a, a second control valve 202 and an output port 209. The oxygen branch 200a is connected to the oxygen unit, for example, the two are directly connected. The oxygen unit is connected to the output port 209 through the oxygen branch 200a. The second control valve 202 is arranged in the oxygen branch, and the second control valve 202 switches the flow rate at a set frequency (for example, at least 3Hz), which can be used to control the oxygen flow of the oxygen branch, and can also make the oxygen output from the output port 209 form a high-frequency airflow, thereby providing periodic high-frequency ventilation for the patient. The oxygen branch 200a can also be provided with a first switch valve F1 for controlling the on-off of the oxygen branch.

[0159] like Fig.10 As shown, the first gas may also include air. The air source module includes an air unit for providing air, for example, the air unit is an air interface. The air interface is used to connect an external air source, such as an air delivery pipeline in a hospital. For another example, the air unit is a turbine, which can obtain air from the external atmospheric environment. The gas delivery branch includes an air branch 200b, that is, the ventilation device 200 or the high-frequency ventilation device includes: an air branch 200b, a second control valve 202 and an output port 209. The air branch 200b is connected to the air unit, for example, the two are directly connected. The air unit is connected to the output port 209 through the air branch 200b. The second control valve 202 is arranged in the air branch, and the second control valve 202 switches the flow rate at a set frequency (for example, at least 3Hz), which can be used to control the air flow of the air branch 200b, and can also form a high-frequency airflow at the output port 209, so as to provide periodic high-frequency ventilation for the patient. A second switch valve F2 for controlling the on-off of the air branch 200b may also be provided in the air branch 200b.

[0160] Fig. 9 and 10 In the illustrated embodiment, the second control valve 202 switches the flow rate at a frequency that can achieve high-frequency ventilation. During the high-frequency adjustment of the valve opening size, the flow rates of the oxygen branch and the air branch are controlled by the opening size, and the ventilation frequency of the airflow in the oxygen branch and the air branch is controlled by the switching frequency.

[0161] like Figure 7 and12 As shown, the first gas may also include oxygen and air. The gas source module includes an oxygen unit and an air unit for providing oxygen. The gas delivery branch includes an oxygen branch and an air branch, that is, the ventilation device 200 or the high-frequency ventilation device 2001 includes: an oxygen branch 200a, an air branch 200b, a second control valve 202 and an output port 209. The oxygen branch 200a is connected to the oxygen unit, for example, the two are directly connected. The air branch 200b is connected to the air unit, for example, the two are directly connected. After the oxygen branch 200a and the air branch 200b converge, they are connected to the output port 209 through the second control valve 202. Among them, a first control valve 202a is provided in the oxygen branch 200a, and the first control valve 202a is used to control the oxygen flow rate of the oxygen branch. The oxygen branch may also be provided with a first switch valve F1 for controlling the on-off of the oxygen branch 200a; the first switch valve F1 plays a safety protection role. The air branch 200b is provided with a third control valve 202b, which is used to control the air flow of the air branch 200b. The air branch 200b may also be provided with a second switch valve for controlling the on and off of the air branch; the second switch valve plays a safety protection role. The first control valve 202a may adopt a proportional valve or a flow valve, and the third control valve 202b may adopt a proportional valve or a flow valve. The first control valve 202a and the third control valve 202b may control the total flow and oxygen concentration of the oxygen-air mixed gas together. The second control valve 202 switches the flow rate at a set frequency (for example, at least 3Hz), which can be used to form a high-frequency airflow from the mixed gas of air and oxygen after confluence, and the high-frequency airflow is output through the output port 209, thereby performing high-frequency ventilation on the patient. In some embodiments, the second control valve 202 may not be provided, but the first control valve 202a and the third control valve 202b may jointly realize high-frequency ventilation control. That is, the first control valve 202a is used to control the oxygen flow rate of the oxygen branch and to form a high-frequency airflow in the oxygen branch, thereby realizing high-frequency ventilation; the third control valve 202b is used to control the air flow rate of the air branch 200b and to form a high-frequency airflow in the air branch 200b, thereby realizing high-frequency ventilation. In this alternative embodiment, the first control valve 202a and the third control valve 202b switch the flow rate at a frequency that can realize high-frequency ventilation. In the process of high-frequency adjustment of the valve opening size, the flow rate of the oxygen branch and the air branch is controlled by the opening size, and the ventilation frequency of the airflow in the branch is controlled by the switching frequency. Therefore, by controlling the first control valve 202a and the third control valve 202b to switch between two different valve flows, one large and one small, at a high frequency (such as high-frequency opening and partial closing), the mixed gas of oxygen and air forms a high-frequency airflow, thereby performing high-frequency ventilation on the patient.

[0162] In some embodiments, Figures 8 to 12 As shown, the first switch valve F1 and the second switch valve F2 both play a role in safety protection. If the ventilation device 200 is not in use, if the ventilation device 200 has gas output, it will affect the gas supply of the anesthesia delivery system of the original anesthesia machine and the ventilation of the anesthesia respirator, and will also cause waste of oxygen or air source; therefore, the first switch valve F1 and the second switch valve F2 are set to prevent the first control valve 202a, the third control valve 202b or the second control valve 202 from being unable to close when the ventilation device is not in use.

[0163] It can be seen from the above-mentioned high-frequency ventilation device that the ventilation frequency of the high-frequency airflow formed at its output port 209 for ventilating the patient is at least 3Hz, or in some embodiments, the ventilation frequency of the high-frequency airflow formed at its output port 530 for ventilating the patient is one of 50-1500bpm. High-frequency ventilation includes high-frequency positive pressure ventilation, high-frequency oscillation ventilation and high-frequency jet ventilation. When the above-mentioned high-frequency ventilation device is used for high-frequency positive pressure ventilation or high-frequency oscillation ventilation, the ventilation frequency of ventilating the patient can be at least 3Hz; when the high-frequency ventilation device is used for high-frequency jet ventilation, the ventilation frequency of ventilating the patient is 50-1500bpm. The high-frequency ventilation provided by the ventilation device 200 can be simple high-frequency ventilation, and can also form high-frequency jet ventilation after adding the jet accessory 70. Specifically, if the output port 209 is not connected to the jet accessory, but connected to other ventilation accessories (such as trachea, intubation, mask, nasal mask, etc.), the high-frequency ventilation device simply provides high-frequency ventilation for the patient. If the output port 209 is connected to the jet attachment 207, the high-frequency ventilation device can further provide high-frequency jet ventilation for the patient. Taking the latter as an example, the output port 209 can be used to connect the jet attachment, and the high-frequency airflow output by the output port 209 is transmitted through the jet attachment to form a high-frequency jet airflow. The jet attachment can be provided by a third-party manufacturer, and the user can connect it to the output port 209. Of course, the jet attachment can also be a part of the anesthesia machine accessories, that is, the anesthesia machine includes a jet attachment connected to the high-frequency ventilation device. The jet attachment receives the first gas output by the high-frequency ventilation device and outputs the first gas in the form of a high-frequency jet airflow. That is, the output port 209 outputs a high-frequency airflow (high-frequency pulse airflow), which becomes a high-frequency jet airflow after passing through the jet attachment. The ventilation frequency of the high-frequency jet airflow for ventilating the patient can be above 3Hz, or between 50-1500bpm, thereby providing the patient with high-frequency jet ventilation. For high-frequency oscillation ventilation and high-frequency positive pressure ventilation, the ventilation frequency can be above 3Hz; for high-frequency jet ventilation, the ventilation frequency can be one of 50-1500bpm. The spray accessory includes a spray channel, and the output aperture of the spray channel is less than 4 mm. The spray accessory may include a spray tube, a spray needle or a bracket (such as a bronchoscope, a bronchoscope, a sheath), etc. The bracket is used to support human tissue or connect a tracheal tube to facilitate surgery by doctors, and a hole for spraying (for example, the hole diameter is less than 4 mm) is provided on the wall of the bracket.

[0164] Embodiment 2:

[0165] In this embodiment, the ventilation method provided by the ventilation device 200 is jet ventilation. The ventilation device 200 is also used to connect the jet attachment, receive the gas output from the gas source interface and adjust it so that the gas passes through the jet attachment to provide respiratory support to the patient in the form of a jet airflow. Figure 9-12As shown. That is, the ventilation device 200 includes a gas delivery branch, a second control valve 202 and an output port 209, the second control valve 202 is arranged in the gas delivery branch, and is used to control the ventilation device 200 to provide periodic respiratory support. The output port 209 is used to connect the jet attachment. The ventilation device 200 receives the first gas through the gas delivery branch, and the first gas is output through the jet attachment 70 connected to the output port 209, and is formed into a jet airflow. In some embodiments, the anesthesia machine may include a jet attachment 70 connected to the ventilation device 200, and the jet attachment 70 receives the first gas output by the ventilation device 200, and forms the first gas into a jet airflow. In other embodiments, the anesthesia machine may not include the jet attachment, and the user installs the jet attachment to the output port 530 of the ventilation device in subsequent use. The expression "jet ventilation" used herein refers to the following ventilation method: in the air delivery phase of a respiratory cycle, high-pressure gas ejects high-speed gas into the respiratory tract through a fine-aperture jet attachment, and the high-speed gas uses the entrainment / Venturi effect to supplement the tidal volume. As used herein, the term "jet airflow" as opposed to jet ventilation refers to a high-speed airflow outputted through a jet attachment.

[0166] In this embodiment, the air path diagram of the ventilation device 200 can be of various types, such as Figures 9 to 12 As shown, they are introduced one by one below.

[0167] like Fig. 9 As shown, the gas source module includes an oxygen unit, and the first gas includes oxygen provided by the oxygen unit. The gas delivery branch includes an oxygen branch 200a, that is, the ventilation device includes: an oxygen branch 200a, a second control valve 202 and an output port 209. The oxygen unit is connected to the output port 209 through the oxygen branch, and the output port 209 is used to connect the injection attachment. The second control valve 202 is arranged in the oxygen branch 200a, and is used to control the oxygen flow of the oxygen branch 200a and to form a periodic injection airflow after the oxygen output from the output port 209 passes through the injection attachment, thereby providing periodic injection ventilation for the patient. Similarly, the oxygen branch 200a can also be provided with a first switch valve F1 for controlling the on-off of the oxygen branch 200a.

[0168] like Fig.10As shown, the gas source module includes an air unit, and the first gas includes air provided by the air unit. The gas delivery branch includes an air branch 200b, that is, the ventilation device 200 includes: an air branch 200b, a second control valve 202 and an output port 209. The air unit is connected to the output port 209 through the air branch 200b. The output port is used to connect the injection attachment. The second control valve 202 is arranged in the air branch 200b, and is used to control the air flow of the air branch 200b and to form a periodic injection airflow after the air output from the output port 209 passes through the injection attachment, thereby providing periodic injection ventilation for the patient. Similarly, a second switch valve F2 for controlling the on-off of the air branch 200b can also be arranged in the air branch 200b.

[0169] Figures 7 to 10 In the embodiment of the invention, the second control valve 202 switches the flow rate at a certain frequency. During the adjustment of the valve opening, the flow rates of the oxygen branch and the air branch are controlled by the opening, and the ventilation frequency of the airflow in the oxygen branch and the air branch is controlled by the switching frequency, so that the oxygen branch and the air branch can output periodic airflows respectively. When the periodic airflow of the output port is output through the jet channel of the jet attachment, periodic jet ventilation is provided to the patient.

[0170] like Fig.12 As shown, the gas source module includes an oxygen unit for providing oxygen and an air unit for providing air, and the first gas includes oxygen provided by the oxygen unit and air provided by the air unit. The gas delivery branch includes an oxygen branch 200a and an air branch 200b, that is, the ventilation device 200 includes: an oxygen branch 200a, an air branch 200b, a second control valve 202 and an output port 209. The oxygen branch 200a is connected to the oxygen unit, and the air branch 200b is connected to the air unit. After the oxygen branch 200a and the air branch 200b converge, they are connected to the output port 209 through the second control valve 202. The output port 209 is used to connect the injection attachment. Among them, the first control valve 202a is provided in the oxygen branch 200a, and the third control valve 202b is provided in the air branch 200b. The first control valve 200a is used to control the oxygen flow of the oxygen branch 200a, and the third control valve 202b is used to control the air flow of the air branch 200b. The second control valve 202 is used to make the mixed gas of air and oxygen after converging form a periodic jet airflow when it is output through the jet accessory connected to the output port 209, thereby providing periodic jet ventilation for the patient.

[0171] In some embodiments, as some alternatives, the second control valve 202 may not be provided, but the first control valve 202a and the third control valve 202b may be used together to realize the injection control. That is, the first control valve 202a is used to control the oxygen flow rate of the oxygen branch 200a, and is also used to make the oxygen of the oxygen branch form a periodically output oxygen flow, thereby realizing the injection ventilation; the third control valve 202b is used to control the air flow rate of the air branch 200b, and is also used to make the air of the air branch form a periodically output air flow, thereby realizing the injection ventilation. That is, the mixed gas after the periodic flow of the oxygen branch 200a and the periodic flow of the air branch 200b converge forms a periodic injection flow when it is output through the injection attachment connected to the output port 209.

[0172] Combination Figure 7-12 It can be seen from the embodiment that in this embodiment, the periodic respiratory support provided to the patient by the ventilation device 200 is jet ventilation for the patient. Jet ventilation is one of the modes of positive pressure ventilation, and jet ventilation is a ventilation mode in which high-pressure gas is sprayed into the respiratory tract at high speed under an open airway. The ventilation frequency range of jet ventilation is very wide. In order to meet the needs of different physiological conditions of users, jet ventilation can have a variety of ventilation frequencies, such as high-frequency jet ventilation and low-frequency jet ventilation. High frequency and low frequency are relative concepts, which are equivalent to having multiple ventilation frequency gears, and the frequency of high-frequency jet ventilation is higher than the frequency of low-frequency jet ventilation. In some embodiments, for example, the frequency of high-frequency jet ventilation can be between 50-1500bpm, and in other embodiments, the frequency of high-frequency jet ventilation can be above 3Hz, for example, between 3-20Hz; the frequency of low-frequency ventilation can be, for example, between 10-50bpm. In the present application, another difference between jet ventilation and periodic anesthetic respiratory support controlled by the first ventilation control device is that jet ventilation is positive pressure ventilation under open airway, while periodic anesthetic respiratory support is applied to ventilation scenarios with closed airway or intubation.

[0173] In the prior art, some anesthesia machines can provide high-flow oxygen therapy in addition to providing anesthesia respiratory support to patients, that is, delivering high-flow oxygen to patients, thereby achieving pre-oxygenation of patients, extending the asphyxia time window of patients, and reserving time for doctors to perform intubation and other operations. Pre-oxygenation does not involve the control of the respiratory cycle, while the newly added ventilation device 200 of this embodiment needs to provide periodic respiratory support to patients, which involves the control of the respiratory cycle, that is, the control of the ventilation frequency.

[0174] In one embodiment, the second ventilation control device 202 may also include one or more valves and a board for driving the one or more valves, wherein the one or more valves are arranged in a gas delivery branch (such as the oxygen branch, air branch, mixed gas branch, etc.). Figure 7-12The first gas is periodically delivered to the patient by controlling the various control valves in the ventilation device 200, so as to provide periodic respiratory support for the patient. The board forms a periodic airflow by switching the opening of one or more valves at a certain frequency, so that the ventilation device 200 can provide periodic respiratory support for the patient. In combination with the above embodiments, when the second ventilation control device controls the opening switching control frequency of one or more valves to be above 3Hz, the ventilation device 200 can provide high-frequency ventilation for the patient; when the second ventilation control device 202 controls the opening switching control frequency of one or more valves to be 10-1500bpm, and the ventilation device 200 is connected to a jet accessory, the ventilation device 200 can provide jet ventilation for the patient.

[0175] In the above embodiment, a first flow sensor 204a for monitoring the flow of the oxygen branch 200a may be further provided in the oxygen branch 200a. A second flow sensor 204b for monitoring the flow of the air branch 200b may also be provided in the air branch 200b. Through these two flow sensors, the flow of oxygen and air can be well monitored.

[0176] The confluence node of the oxygen branch 200a and the air branch 200b ( Fig.11 and Fig.12 A safety valve 205 for pressure relief is provided between the output port 209 (black dot in the middle) and the output port 209, and at least one pressure sensor for monitoring pressure is also provided. The safety valve 205 can be specifically used to connect the output port 209 with the exhaust end of the safety valve 205 when the pressure monitored by the pressure sensor exceeds a preset threshold value, so that the gas between the output port 209 and the safety valve 205 is discharged through the exhaust end to prevent the patient from suffering from barotrauma. The safety valve 205 can also be used to separate the airway between the output port 209 and the confluence node when the pressure monitored by the pressure sensor exceeds a preset threshold value. For example, the safety valve 205 is a three-way valve, the first end of the three-way valve is connected to the output port 209, the second end of the three-way valve is connected to the confluence node, and the third end of the three-way valve is the exhaust end. Under normal circumstances, the first end of the three-way valve is connected (communicated) to the second end, and the first end is disconnected from the exhaust end, and the second end is disconnected from the exhaust end. The pressure sensor outputs the monitored pressure to the second ventilation control device. The second ventilation control device determines whether the pressure exceeds a preset threshold value, and when the pressure exceeds the preset threshold value, outputs a corresponding control signal to the three-way valve. Under the triggering of the control signal, the three-way valve disconnects the first end from the second end and connects (communicates) the first end with the exhaust end, thereby releasing the gas with excessive pressure, thereby improving safety. The preset threshold value can be set according to clinical experience or doctor's needs.

[0177] Embodiment three:

[0178] When the ventilation device of the present invention provides respiratory support to a patient, the first gas may be provided to the patient at a first ventilation frequency and / or a second ventilation frequency. In the case of simultaneously supplying gas to the patient at the first ventilation frequency and the second ventilation frequency, the first ventilation frequency and the second ventilation frequency may be the same or different, and this embodiment is described by taking the difference as an example.

[0179] The airway pressure waveform when the ventilation device provides respiratory support to the patient is as follows Fig.16 As shown. The two ventilation frequencies correspond to different respiratory cycles, and the respiratory cycle corresponding to the first ventilation frequency includes the first inspiratory phase (first inspiratory stage) and the first expiratory phase (first expiratory stage). The respiratory cycle corresponding to the second ventilation frequency includes the second inspiratory phase (second inspiratory stage) and the second expiratory phase (second expiratory stage). The respiratory support corresponding to the two ventilation frequencies acts on the patient at least part of the time at the same time, that is, when the ventilation device provides the first gas to the patient at the second ventilation frequency in multiple second inspiratory phases, in at least one second inspiratory phase of the multiple second inspiratory phases, the ventilation device simultaneously provides the first gas to the patient at the first ventilation frequency, so that the ventilation device simultaneously provides the second respiratory support to the patient at the first ventilation frequency and the second ventilation frequency. It can be seen that in addition to providing the existing anesthesia respiratory support, the anesthesia machine can also provide superimposed ventilation of two ventilation frequencies through the ventilation device to realize the selection or switching of these two functions, that is, the ventilation device can be used to provide the first gas to the patient at the first ventilation frequency and the second ventilation frequency when the respiratory support mode provided by the anesthesia machine is superimposed ventilation, thereby providing the patient with a second respiratory support. The present invention improves the elimination rate of carbon dioxide when providing respiratory support to patients by superimposing two ventilation modes with different frequencies.

[0180] like Fig.15 As shown, in this embodiment, the ventilation device includes a first ventilation device 501 and a second ventilation device 502. The first ventilation device 501 is used to provide respiratory support for the patient using a first gas at a first ventilation frequency. The second ventilation device 502 is used to provide respiratory support for the patient using the first gas at a second ventilation frequency. Fig.16It can be seen that the first ventilation frequency is higher than the second ventilation frequency, such as the first ventilation frequency is not less than 3Hz, and the second ventilation frequency is less than 3Hz. The first ventilation frequency and the second ventilation frequency can be preset, for example, by the user, and there may be a partial overlap in the setting ranges of the two. For example, the setting range of the first ventilation frequency is greater than or equal to 50bpm (bpm, the unit of beats per minute), and the setting range of the second ventilation frequency is less than or equal to 100bpm. Taking into account practical applications, in this embodiment, the setting range of the first ventilation frequency is 50bpm-1500bpm, and the setting range of the second ventilation frequency is 1-100bpm. When the ventilation device is working, the user can set the two ventilation frequencies to be the same, or to make one higher than the other. Usually, the first ventilation frequency is higher than the second ventilation frequency.

[0181] The first ventilation device 501 and the second ventilation device 502 can work independently or simultaneously under control. Controlled simultaneous operation is actually the two ventilation devices being controlled to cooperate with each other. For example, the two ventilation devices can work simultaneously throughout the entire process, or they can work alternately. As long as it can be achieved that in at least one second inspiratory phase, the first ventilation device 501 simultaneously provides the patient with the first gas at the first ventilation frequency, thereby jointly providing respiratory support for the patient. The driving pressure when the first ventilation device 501 provides respiratory support for the patient can be lower than the driving pressure when the second ventilation device 502 provides respiratory support for the patient. Figure 4 As shown, the large waveform has a low frequency and is the waveform corresponding to the second ventilation frequency; the small waveform has a high frequency and is the waveform corresponding to the first ventilation frequency. The first ventilation device 501 provides relatively high-frequency ventilation, producing a lower airway pressure level, while the second ventilation device 502 provides relatively low-frequency (normal frequency) ventilation, intermittently increasing the airway pressure. The higher the level of increase, the greater the tidal volume. Therefore, the high-frequency and normal-frequency ventilation are superimposed to effectively increase the elimination rate of carbon dioxide.

[0182] When the respiratory support mode received by the human-machine interaction device of the anesthesia machine is high-frequency ventilation, that is, when the respiratory support mode provided by the anesthesia machine is high-frequency ventilation, the first ventilation device 501 is started, and the first ventilation device 501 uses the first gas to provide respiratory support for the patient at the first ventilation frequency. It can be seen that the first ventilation device 501 can be turned on alone to provide relatively high-frequency ventilation for the patient.

[0183] When the respiratory support mode received by the human-machine interaction device is normal frequency ventilation, that is, when the respiratory support mode provided by the anesthesia machine is normal frequency ventilation, the second ventilation device 502 is started, and the second ventilation device 502 uses the first gas to provide respiratory support for the patient at the second ventilation frequency. The first ventilation frequency is greater than the second ventilation frequency. It can be seen that the second ventilation device 502 can be turned on alone to provide relatively low-frequency ventilation for the patient.

[0184] When the respiratory support mode received by the human-computer interaction device is superimposed ventilation, that is, when the respiratory support mode provided by the anesthesia machine is superimposed ventilation, the first ventilation device 501 and the second ventilation device 502 are started to work simultaneously, and the first ventilation device 501 and the second ventilation device 502 simultaneously provide the first gas to the patient at the first ventilation frequency and the second ventilation frequency, thereby providing respiratory support for the patient.

[0185] When the breathing support mode received by the human-machine interaction device is anesthesia breathing support, the breathing circuit is started to provide anesthesia breathing support for the patient.

[0186] It can be seen that the user's selection (input) of the breathing support mode is equivalent to selecting the working mode of the anesthesia machine, and the user can conveniently use the different functions of the anesthesia machine.

[0187] The first ventilation device 501 and the second ventilation device 502 provide respiratory support to the patient. For example, different flow rates of the first gas delivery can be provided to the patient in two different time periods of a respiratory cycle, wherein the flow rate provided in one time period is smaller than that in another time period or the flow rate provided in one time period is 0. Providing different flow rates of the first gas delivery in two different time periods is equivalent to switching the flow rates, and the switching frequency is the above-mentioned ventilation frequency. The two different time periods of a respiratory cycle can be an inspiratory time period (inspiratory phase) and an expiratory time period (expiratory phase), that is, different flow rates of the first gas delivery can be provided to the patient in the inspiratory time period and the expiratory time period of a respiratory cycle, wherein the flow rate provided in the inspiratory time period is greater than the flow rate provided in the expiratory time period, and the flow rate provided in the expiratory time period can be 0 or not 0. Of course, in some embodiments, the two different time periods of a respiratory cycle can also be other time segmentation methods, that is, they can be two time periods that are not divided according to inhalation and exhalation.

[0188] The gas source interface included in the gas source module 10 is used to connect an external gas source or an internal gas source. The gas source interface includes an oxygen interface and / or an air interface, and correspondingly, the first gas includes oxygen and / or air. The first ventilation device 501 is connected to the gas source interface, and the first gas is transported from the gas source interface to the first ventilation device 501 via a first flow path. The second ventilation device 502 is connected to the gas source interface, and the first gas is transported from the gas source interface to the second ventilation device 502 via a second flow path, wherein the first flow path can be independent of the second flow path. In this way, when the first ventilation device 501 and the second ventilation device 502 work at the same time, no matter how the flow rate and pressure of the two are, they will not affect each other, and there will be no reduction in flow rate and pressure.

[0189] like Fig.17As shown, the first ventilation device 501 includes a first gas delivery branch 503, and the first gas delivery branch 503 is provided with a first pressure regulating component 504 for controlling the gas pressure provided by the first ventilation device 501, that is, the first pressure regulating component 504 can adjust the driving pressure, which can be a pressure regulating valve, etc., and the pressure regulating valve controls the gas pressure provided by the first ventilation device 501 by adjusting the opening size. Similarly, the second ventilation device 502 includes a second gas delivery branch 506, and the second gas delivery branch 506 is provided with a second pressure regulating component 507 for controlling the gas pressure provided by the second ventilation device, that is, the second pressure regulating component 507 can adjust the driving pressure, which can be a pressure regulating valve, etc., and the pressure regulating valve controls the gas pressure provided by the second ventilation device 502 by adjusting the opening size. It can be seen that the two ventilation devices have their own pressure regulating components, and there is no need to use gas volume pressure regulation. The pressure regulation between each other does not affect each other, and the pressure regulating valve is used to adjust the driving pressure, and the regulation is very fast and sensitive.

[0190] The first gas delivery branch 503 is also provided with a first control component 505, which is arranged downstream of the first pressure regulating component 504. The first control component 504 is used to control the oxygen concentration of the first gas output by the first ventilation device 501, which can be a proportional valve, etc. The second gas delivery branch 506 is also provided with a second control component 508, which is arranged downstream of the second pressure regulating component 507. The second control component 508 is used to control the oxygen concentration of the first gas output by the second ventilation device 502, which can be a proportional valve, etc. It can be seen that the two ventilation devices have their own control components, and there is no need to use an oxygen mixing chamber to adjust the oxygen concentration, which will not cause low flow and pressure.

[0191] Different components of the first gas correspond to different gas delivery branches, which are explained below.

[0192] In one embodiment, the first gas may include oxygen. The gas source interface included in the gas source module 10 is an oxygen interface. The oxygen interface is used to connect an external oxygen source or an internal oxygen source, such as an oxygen delivery pipeline or an oxygen cylinder in a hospital, or an internal oxygen source such as an oxygen concentrator provided by an anesthesia machine. Fig.18 As shown, the first gas delivery branch 503 is a first oxygen branch, and the first ventilation device 501 also includes a first output port 530. The input end of the first oxygen branch is connected to the oxygen interface, for example, the input end of the first oxygen branch is connected to the oxygen interface through an independent pipeline, and there is no gas container for pressure regulation on the pipeline. The output end of the first oxygen branch is connected to the first output port 530. The first pressure regulating component 504 is a first pressure regulating valve T1, and the first pressure regulating valve T1 is used to control the oxygen pressure of the first oxygen branch.

[0193] The second gas delivery branch 506 is a second oxygen branch, and the second ventilation device 502 also includes a second output port 530'. The input end of the second oxygen branch is connected to the oxygen interface. For example, the input end of the second oxygen branch is connected to the oxygen interface through an independent pipeline, and there is no gas container for pressure regulation on the pipeline. In this way, the oxygen input by the oxygen interface is delivered to the first oxygen branch and the second oxygen branch through different pipelines, and the two oxygen branches do not affect each other. The output end of the second oxygen branch is connected to the second output port 530'. The second pressure regulating component 507 is a third pressure regulating valve T1', and the third pressure regulating valve T1' is used to control the oxygen pressure of the second oxygen branch. The first pressure regulating valve T1 and the third pressure regulating valve T1' can be mechanical pressure regulating valves or electronic pressure regulating valves. This embodiment is described by taking the latter as an example, and the electronic pressure regulating valve can be automatically adjusted according to the setting.

[0194] In some embodiments, the two oxygen branches do not need to be provided with a pressure regulating valve each, but share a pressure regulating valve, for example, Fig.19 As shown, the anesthesia machine includes a fifth pressure regulating valve T0, which is used to control the pressure of the gas in the gas circuit. The first ventilation device 501 includes: a first oxygen branch and a first output port 530. The input end of the first oxygen branch is connected to the oxygen interface through the fifth pressure regulating valve T0; the output end of the first oxygen branch is connected to the first output port 530. The second ventilation device 502 includes: a second oxygen branch and a second output port 530'; the input end of the second oxygen branch is connected to the oxygen interface through the fifth pressure regulating valve T0; the output end of the second oxygen branch is connected to the second output port 530'. There is no gas capacity for pressure regulation between the fifth pressure regulating valve T0 and the oxygen interface. Although the two oxygen branches share a pressure regulating valve, since they are directly connected to the oxygen interface, the air pressure and flow of the oxygen interface are constant. Therefore, there is no situation of low flow and pressure when the two oxygen branches are used, and the pressure regulating valve is used to adjust the driving pressure, which is very fast and sensitive.

[0195] The first control component 504 in the first oxygen branch is a fourth control valve T5, and the fourth control valve T5 is located downstream of the first pressure regulating valve T1 or the fifth pressure regulating valve T0. The fourth control valve T5 is used to control the oxygen flow rate of the first oxygen branch and to make the oxygen in the first oxygen branch form an airflow of the first ventilation frequency. The fourth control valve T5 is controlled to switch the flow rate at a preset first ventilation frequency so that the first gas output from the first output port 530 forms a high-frequency airflow. The expression "high-frequency airflow" used herein refers to a gas whose output frequency is greater than a certain critical value, for example, a gas whose output frequency is greater than or equal to 2 Hz, or a gas whose output frequency is greater than or equal to 3 Hz. The ventilation frequency (flow switching frequency or valve opening switching frequency) of the fourth control valve T5 can be preset. The fourth control valve T5 is specifically used for high-frequency ventilation control (such as high-frequency switching between two different valve flows, one large and one small, whose frequency can be above 2Hz or 3Hz, for example, between 3-20Hz), so that the first gas forms a high-frequency pulse airflow, and the high-frequency pulse airflow can provide high-frequency jet ventilation to the patient after passing through the jet attachment connected to the first output port 530. If the first output port 530 is not connected to the jet attachment, the high-frequency pulse airflow can provide high-frequency ventilation to the patient. The fourth control valve T5 can be a solenoid valve, an electromagnetic servo valve, an electromagnetic switch valve, or an electromagnetic proportional valve, etc.

[0196] The second control component 508 in the second oxygen branch is the sixth control valve T5', which is located downstream of the third pressure regulating valve T1' or the fifth pressure regulating valve T0. The sixth control valve T5' is used to control the oxygen flow rate of the second oxygen branch and to make the oxygen in the second oxygen branch form an airflow of the second ventilation frequency. Similarly, the sixth control valve T5' is controlled to switch the flow rate at a preset second ventilation frequency so that the first gas output from the second output port 530' forms a constant frequency (or low frequency) airflow. The expression "constant frequency airflow" used herein refers to a gas whose output frequency is less than a certain critical value, for example, a gas whose output frequency is less than 3Hz. The ventilation frequency (flow switching frequency or valve opening switching frequency) of the sixth control valve T5' can be preset. The sixth control valve T5' is specifically used for constant frequency ventilation control (such as switching between two different valve flows, one large and one small, according to the second ventilation frequency, and the frequency is lower than 3Hz, for example, between 10-50bpm), so that the first gas forms a constant frequency pulse airflow, and the constant frequency pulse airflow can provide constant frequency jet ventilation to the patient after passing through the jet attachment connected to the second output port 530'. If the second output port 530' is not connected to the jet attachment, the constant frequency pulse airflow can provide constant frequency ventilation to the patient. The sixth control valve T5' can be a solenoid valve, a solenoid servo valve, a solenoid switch valve, or a solenoid proportional valve, etc.

[0197] In one embodiment, the first gas may include air. The gas source interface included in the gas source module 10 is an air interface. The air interface is used to connect an external air source or an internal air source. The external air source may be an air delivery pipeline or an air bottle in a hospital, or an internal air source may be an air pump or a compressor. Fig. 20 As shown, the first gas delivery branch 503 is a first air branch, and the first ventilation device 501 also includes a first output port 530. The input end of the first air branch is connected to the air interface, for example, the input end of the first air branch is connected to the air interface through an independent pipeline, and there is no gas capacity for pressure regulation on the pipeline. The output end of the first air branch is connected to the first output port 530. The first pressure regulating component 504 is a second pressure regulating valve T2, and the second pressure regulating valve T2 is used to control the air pressure of the first air branch.

[0198] The second gas delivery branch 506 is a second air branch, and the second ventilation device 502 also includes a second output port 530'. The input end of the second air branch is connected to the air interface. For example, the input end of the second air branch is connected to the air interface through an independent pipeline, and there is no gas container for pressure regulation on the pipeline. In this way, the air input by the air interface is delivered to the first air branch and the second air branch through different pipelines, and the two air branches do not affect each other. The output end of the second air branch is connected to the second output port 530'. The second pressure regulating component 507 is a fourth pressure regulating valve T2', and the fourth pressure regulating valve T2' is used to control the air pressure of the second air branch. Similarly, the second pressure regulating valve T2 and the fourth pressure regulating valve T2' can be mechanical pressure regulating valves or electronic pressure regulating valves.

[0199] In some embodiments, the two air branches do not need to be provided with a pressure regulating valve each, but share a pressure regulating valve, for example, Fig.21 As shown, the anesthesia machine includes a sixth pressure regulating valve T3, which is used to control the pressure of the gas in the air circuit. The first ventilation device 501 includes: a first air branch and a first output port 530. The input end of the first air branch is connected to the air interface through the sixth pressure regulating valve T3; the output end of the first air branch is connected to the first output port 530. The second ventilation device 502 includes: a second air branch and a second output port 530'. The input end of the second air branch is connected to the air interface through the sixth pressure regulating valve T3; the output end of the second air branch is connected to the second output port 530'. There is no gas capacity for pressure regulation between the sixth pressure regulating valve T3 and the air interface. Although the two air branches share a pressure regulating valve, since they are directly connected to the air interface, the air pressure and flow of the air interface are constant. Therefore, there is no situation of low flow and pressure when the two air branches are used, and the pressure regulating valve is used to adjust the driving pressure, which is very fast and sensitive.

[0200] The first control component 504 in the first air branch is a fifth control valve T6, and the fifth control valve T6 is located downstream of the second pressure regulating valve T2 or the sixth pressure regulating valve T3. The fifth control valve T6 is used to control the air flow of the first air branch and to make the air in the first air branch form an airflow with a first ventilation frequency. The function of the fifth control valve T6 is the same as that of the fourth control valve T5, which will not be described in detail here. The fifth control valve T6 can be a solenoid valve, an electromagnetic servo valve, an electromagnetic switch valve or an electromagnetic proportional valve, etc.

[0201] The second control component 508 in the second air branch is the seventh control valve T6', and the seventh control valve T6' is located downstream of the fourth pressure regulating valve T2' or the sixth pressure regulating valve T3. The seventh control valve T6' is used to control the air flow of the second air branch and to make the air in the second air branch form an airflow with a second ventilation frequency. The function of the seventh control valve T6' is the same as that of the third control valve T5' mentioned above, and will not be repeated here. The seventh control valve T6' can be a solenoid valve, an electromagnetic servo valve, an electromagnetic switch valve or an electromagnetic proportional valve, etc.

[0202] In one embodiment, the first gas may include air and oxygen, that is, the first gas is a mixed gas of air and oxygen. The gas source interface included in the gas source module 10 is an air interface and an oxygen interface. Fig. 22 As shown, the first gas delivery branch 503 includes a first oxygen branch 5031 and a first air branch 5032. The input end of the first oxygen branch 5031 is connected to the oxygen interface, for example, the input end of the first oxygen branch is connected to the oxygen interface through an independent pipeline, and there is no gas capacity for pressure regulation on the pipeline. The input end of the first air branch 5032 is connected to the air interface, for example, the input end of the first air branch 5032 is connected to the air interface through an independent pipeline, and there is no gas capacity for pressure regulation on the pipeline. The first oxygen branch 5031 and the first air branch 5032 are connected to the first output port 530 after converging. The first pressure regulating assembly 504 includes a first pressure regulating valve T1 and a second pressure regulating valve T2. A first pressure regulating valve T1 is provided in the first oxygen branch, and the first pressure regulating valve T1 is used to control the oxygen pressure of the first oxygen branch. A second pressure regulating valve T2 is provided in the first air branch, and the second pressure regulating valve T2 is used to control the air pressure of the first air branch. The first pressure regulating valve T1 and the second pressure regulating valve T2 can work together to determine the driving pressure of the first ventilation device for respiratory support. The first oxygen branch 5031 and the first air branch 5032 are respectively connected to the gas source interface through pipelines, and are provided with independent control components, so that there is no need to use an oxygen mixing chamber to adjust the oxygen concentration, which will not cause low flow and pressure.

[0203] The second gas delivery branch 506 includes: a second oxygen branch 5061 and a second air branch 5062. The input end of the second oxygen branch 5061 is connected to the oxygen interface. The input end of the second air branch 5062 is connected to the air interface. The second oxygen branch 5061 and the second air branch 5062 are connected to the second output port 530' after converging. A third pressure regulating valve T1' is provided in the second oxygen branch 5061, and the third pressure regulating valve T1' is used to control the oxygen pressure of the second oxygen branch. A fourth pressure regulating valve T2' is provided in the second air branch, and the fourth pressure regulating valve T2' is used to control the air pressure of the second air branch. The third pressure regulating valve T1' and the fourth pressure regulating valve T2' can work together to determine the driving pressure of the second ventilation device for respiratory support. The second oxygen branch 5061 and the second air branch 5062 are connected to the gas source interface through pipelines respectively. No gas container is set on the pipeline, and each is provided with independent control components. There is no need to use an oxygen mixing chamber to adjust the oxygen concentration, which will not cause low flow and pressure.

[0204] In some embodiments, the two oxygen branches do not need to be provided with a pressure regulating valve each, but share a pressure regulating valve, and the two air branches do not need to be provided with a pressure regulating valve each, but share a pressure regulating valve. For example, Fig.23 As shown, the anesthesia machine includes a fifth pressure regulating valve T0 and a sixth pressure regulating valve T3, and the fifth pressure regulating valve T0 and the sixth pressure regulating valve T3 are both used to control the pressure of the gas in the gas circuit. The first ventilation device includes: a first oxygen branch 5031, a first air branch 5032 and a first output port 530. The input end of the first oxygen branch 5031 is connected to the oxygen interface through the fifth pressure regulating valve T0, and the input end of the first air branch 5032 is connected to the air interface through the sixth pressure regulating valve T3. The first oxygen branch 5031 and the first air branch 5032 are connected to the first output port 530 after converging.

[0205] The second ventilation device includes: a second oxygen branch 5061, a second air branch 5062 and a second output port 530'. The input end of the second oxygen branch 5061 is connected to the oxygen interface through the fifth pressure regulating valve T0, and the input end of the second air branch 5062 is connected to the air interface through the sixth pressure regulating valve T3. The second oxygen branch 5061 and the second air branch 5062 are connected to the second output port 530' after converging.

[0206] A fourth control valve T5 is provided in the first oxygen branch 5031. The fourth control valve T5 is located downstream of the first pressure regulating valve T1 or the fifth pressure regulating valve T0 (see Fig. 22 and 23). The fourth control valve T5 is used to control the oxygen flow rate of the first oxygen branch 5031 and to make the oxygen in the first oxygen branch 5031 form an airflow with a first ventilation frequency. A fifth control valve T6 is provided in the first air branch 5032, and the fifth control valve T6 is located downstream of the second pressure regulating valve T2 or the sixth pressure regulating valve T3. The fifth control valve T6 is used to control the air flow rate of the first air branch 5032 and to make the air in the first air branch 5032 form an airflow with a first ventilation frequency. The oxygen concentration of the first ventilation device 501 is set by controlling the valve opening of the fourth control valve T5 and the fifth control valve T6. The fourth control valve T5 and the fifth control valve T6 are controlled to switch the flow rate at a preset first ventilation frequency so that the first gas output from the first output port 530 forms a high-frequency airflow. The specific functions have been described in detail in the aforementioned embodiments and will not be repeated here.

[0207] The second oxygen branch 5061 is provided with a sixth control valve T5', which is located downstream of the third pressure regulating valve T1' or the fifth pressure regulating valve T0. The sixth control valve T5' is used to control the oxygen flow rate of the second oxygen branch and to make the oxygen of the second oxygen branch form an airflow of the second ventilation frequency. The second air branch 5062 is provided with a seventh control valve T6', which is located downstream of the fourth pressure regulating valve T2' or the sixth pressure regulating valve T3. The seventh control valve T6' is used to control the air flow rate of the second air branch and to make the air of the second air branch form an airflow of the second ventilation frequency. The oxygen concentration of the second ventilation device 502 is set by controlling the valve opening of the sixth control valve T5' and the seventh control valve T6'. The sixth control valve T5' and the seventh control valve T6' are controlled to switch the flow rate at the preset second ventilation frequency so that the first gas output from the second output port 530' forms a constant frequency airflow. The specific functions have been described in detail in the aforementioned embodiments and will not be repeated here.

[0208] Fig.11 and 12In the embodiment, the two control valves of each ventilation device are used for both flow control and flow switching at a preset frequency. In other embodiments, the above two control valves of each ventilation device can be used only for flow control, and a control valve for switching flow at a preset frequency is set downstream of the confluence of the oxygen branch and the air branch. Specifically, the fourth control valve T5 and the fifth control valve T6 of the first ventilation device are used for oxygen flow control and air flow control, respectively, and an eighth control valve is set downstream of the confluence of the first oxygen branch and the first air branch. That is, in this embodiment, the first control component includes the fourth control valve T5, the fifth control valve T6 and the eighth control valve. The eighth control valve is used to make the first gas form an airflow of the first ventilation frequency. The eighth control valve is controlled to switch the flow at the preset first ventilation frequency so that the first gas output from the first output port 530 forms a high-frequency airflow. The ventilation frequency (flow switching frequency or valve opening switching frequency) of the eighth control valve can be preset. The eighth control valve is specifically used for high-frequency ventilation control (such as high-frequency switching between two different valve flows, one large and one small, with a frequency of more than 2 Hz or more than 3 Hz, for example, between 3-20 Hz), so that the first gas forms a high-frequency pulse airflow, and the high-frequency pulse airflow can provide high-frequency jet ventilation to the patient after passing through the jet attachment connected to the first output port 530. If the first output port 530 is not connected to the jet attachment, the high-frequency pulse airflow can provide high-frequency ventilation to the patient. The eighth control valve can be a solenoid valve, an electromagnetic servo valve, an electromagnetic switch valve, or an electromagnetic proportional valve, etc.

[0209] Similarly, the sixth control valve T5' and the seventh control valve T6' of the second ventilation device are used for oxygen flow control and air flow control, respectively, and a ninth control valve is arranged downstream of the confluence point of the second oxygen branch and the second air branch. That is, in this embodiment, the second control assembly includes the sixth control valve T5', the seventh control valve T6' and the ninth control valve. The ninth control valve is used to make the first gas form an airflow of the second ventilation frequency. The ninth control valve is controlled to switch the flow size at the preset second ventilation frequency so that the first gas output from the second output port 530' forms a constant frequency (or low frequency) airflow. The ventilation frequency (flow switching frequency or valve opening switching frequency) of the ninth control valve can be preset. The ninth control valve is specifically used for constant-frequency ventilation control (such as switching between two different valve flows, one large and one small, according to the second ventilation frequency, with a frequency lower than 3 Hz, for example, between 10-50 bpm), so that the first gas forms a constant-frequency pulse airflow, which can provide constant-frequency jet ventilation to the patient after passing through the jet attachment connected to the second output port 530'. If the second output port 530' is not connected to the jet attachment, the constant-frequency pulse airflow can provide constant-frequency ventilation to the patient. The ninth control valve can be a solenoid valve, an electromagnetic servo valve, an electromagnetic switch valve or an electromagnetic proportional valve, etc. The eighth control valve and the ninth control valve have the same function as the second control valve mentioned above, that is, by switching between different valve flows according to a certain ventilation frequency, an airflow output with a certain ventilation frequency is formed.

[0210] The human-machine interaction device of the anesthesia machine also includes a display. When the breathing support mode received by the human-machine interaction device is periodic breathing support, the display is used to output a prompt message to turn off the anesthetic delivery device 102 or output a prompt message to switch the patient's anesthesia mode, so as to prevent the anesthetic of the anesthetic delivery device 102 from being provided to the patient through the breathing circuit but being released into the environment. When the breathing support mode received by the human-machine interaction device is periodic breathing support, the display can also be used to display the pressure waveform W (such as Fig.14 The pressure in the pressure waveform W is monitored by a pressure sensor.

[0211] In this embodiment, when the anesthetic delivery device 102 is an electronic vaporizer, the anesthesia machine can also obtain the working state of the electronic vaporizer. When the breathing support mode received by the human-computer interaction device is periodic breathing support, the anesthesia machine is also used to determine whether the current working state of the electronic vaporizer is stopped, that is, to determine whether the electronic vaporizer is turned off, and after determining that the electronic vaporizer is turned off, the anesthesia machine can switch to the periodic breathing support mode. The ventilation device 200 performs periodic breathing support only after the electronic vaporizer is turned off, thereby improving the safety of the anesthesia machine.

[0212] Further integration Fig.13a and Fig.13b , Fig.13a and Fig.13b It is a schematic diagram of the main monitoring interface on the display of the anesthesia machine. The main monitoring interface includes a ventilation mode switching area P1, and high-frequency jet ventilation is one of the ventilation modes, which is presented in the ventilation mode switching area P1 in a tab manner. When it is desired to use the anesthesia machine to provide periodic respiratory support, the "HFJV" icon in the ventilation mode switching area P1 can be selected, and confirmed by the "SET MODE" icon to complete the selection of the periodic respiratory support method. At this time, the ventilation device 200 can be controlled to start and provide periodic high-frequency jet ventilation to the patient. The pressure monitored during high-frequency jet ventilation will be displayed in the pressure waveform area P2 of the main monitoring interface. When it is desired to use the anesthesia machine to provide periodic anesthetic breathing support, other ventilation mode icons in the ventilation mode switching area P1, such as the "VCV" icon, can be selected. At this time, the first ventilation control device 104 can control the breathing circuit to provide periodic anesthetic breathing support to the patient. Furthermore, the anesthesia machine receives the user's operation on the first display control P1 through the human-computer interaction device to obtain the first ventilation parameter, and receives the user's operation on the second display control P3 through the human-computer interaction device to obtain the second ventilation parameter. The first ventilation parameter includes at least one of the first ventilation frequency, the first inspiratory-expiratory ratio, and the first driving pressure, and the second ventilation parameter includes at least one of the second ventilation frequency, the second inspiratory-expiratory ratio, and the second driving pressure. The user can easily set the ventilation frequency, inspiratory-expiratory ratio, and the first driving pressure.

[0213] In some embodiments, when the human-computer interaction device receives any type of respiratory support mode, the instructions formed based on the same respiratory support mode can be transmitted to the first ventilation control device and the second ventilation control device respectively. The two ventilation control devices start or stop the corresponding respiratory support mode according to the received instructions. For example, when the respiratory support mode received by the human-computer interaction device is periodic respiratory support, the first ventilation control device 104 controls the breathing circuit to stop outputting the second gas with anesthetic to the outside, and stops the periodic anesthesia respiratory support for the patient. The second ventilation control device synchronously controls the ventilation device 200 (for example, the gas delivery branch) to start periodically providing the first gas to the patient and perform high-frequency / jet ventilation.

[0214] In the above embodiment, the second ventilation control device 202 and the first ventilation control device 104 are two independent ventilation control devices; of course, in some other embodiments, the second ventilation control device 202 and the first ventilation control device 104 may also be the same ventilation control device, that is, the control function of the ventilation device 200 may be further integrated with the first ventilation control device. That is, the first ventilation control device also has the function of the above-mentioned second ventilation control device, which is used to control the gas delivery branch to provide periodic respiratory support for the patient. In specific operations, after the instruction for selecting the respiratory support mode received by the human-computer interaction device is transmitted to the first ventilation control device, the first ventilation control device decides whether to control the breathing circuit to provide periodic anesthetic respiratory support, and / or control the gas delivery branch to provide periodic respiratory support for the patient.

[0215] like Figure 7-12 As shown, the pressure sensor may be disposed between the second control valve 202 and the output port 209. The safety valve 205 is also disposed between the second control valve 202 and the output port 209.

[0216] Multiple pressure sensors may be provided, and this embodiment is described by taking the first pressure monitoring device 203 and the second pressure monitoring device 206 as an example. The pressure monitored by the first pressure monitoring device 203 is used to trigger the safety valve 205, and the pressure monitored by the second pressure monitoring device 206 is used to display the waveform.

[0217] Specifically, the first pressure monitoring device 203 is close to the safety valve 205. The first pressure monitoring device 203 monitors the pressure of the high-frequency gas. When the pressure value monitored by the first pressure monitoring device 203 is found to be abnormal, the safety valve 205 is switched to separate the airway at the patient end from the airway of the ventilation device 200. At the same time, the gas at the patient end can be discharged through the safety valve 205 to prevent barotrauma at the patient end.

[0218] The second pressure monitoring device 206 is close to the patient end, that is, close to the output port 209. There is a pressure sampling port at the near-patient end, which is connected to the second pressure monitoring device 206 of the ventilation device 200 through a pressure sampling catheter. Therefore, the display shows the pressure oscillation waveform W collected by the second pressure monitoring device 206 on the interface. Of course, in some embodiments, the action of the safety valve 205 can also be triggered according to the second pressure monitoring device 206 near the patient end, and the data of the pressure waveform W displayed on the display can also be collected by the first pressure monitoring device 203 near the safety valve 205.

[0219] The ventilation device 200 can perform high-frequency / jet ventilation by controlling the switching frequency of the second ventilation control device (e.g., the second control valve 202). The specific process of high-frequency / jet ventilation has been described in detail in the above content. The ventilation device 200 adjusts the frequency (i.e., the air supply frequency) of the high-frequency / jet ventilation performed by the second control valve 202 to achieve ventilation with different ventilation frequencies. For example, when the ventilation device 200 achieves jet ventilation, when the ventilation frequency of the jet ventilation device is lowered, the jet ventilation device is a low-frequency ventilation device, and low-frequency ventilation can be achieved by cooperating with corresponding accessories (e.g., nasal plugs, nasal masks, face masks, etc.).

[0220] like Figure 6 and Figure 7 As shown, the anesthesia machine also includes a flow monitoring device 101, which is used to control (adjust) the flow of the first gas. The flow monitoring device 101 can be mechanical or fully electronic. The flow monitoring device 101 can also be used to detect the flow of the first gas. There are multiple ways of connecting the flow monitoring device 101, the anesthetic delivery device 102 and the ventilation device 200. For example Figure 6 In the illustrated embodiment, the gas source interface 300 ′ is connected to the anesthetic delivery device 102 via the flow monitoring device 101 , wherein the ventilation device 200 is connected to the gas source interface 300 ′; Figure 6 Specifically, the gas source interface is connected to the vaporizer through the flow monitoring device 101. In addition, the anesthesia machine also includes a three-way valve. The three-way valve includes a first port connected to the flow monitoring device 101, a second port connected to the anesthetic delivery device 102, and a third port connected to the ventilation device 200. That is, the gas source interface 300' is connected to the input end of the flow monitoring device 101. The output end of the flow monitoring device 101 can be connected to the anesthetic delivery device 102 under the control of the three-way valve, and can also be connected to the ventilation device 200 under the control of the three-way valve, that is, the three-way valve is used to enable the flow monitoring device 101 to select one of the anesthetic delivery device 102 and the ventilation device 200 to be connected.

[0221] The gas source interface 300' may also include a laughing gas unit for providing laughing gas, and the laughing gas unit may be a laughing gas interface, which is used to connect an external laughing gas source, such as a laughing gas delivery pipeline, a laughing gas bottle, etc. in a hospital. The flow monitoring device 101 may have three input interfaces, which are respectively connected to an oxygen interface, an air interface, and a laughing gas interface. It is understandable that gas can be drawn from the flow rear end of the flow monitoring device 101 to the ventilation module, which greatly simplifies the structure of the ventilation module.

[0222] It can be seen from the above content that the first gas is at least an oxygen-containing gas, and the anesthesia machine may further include an auxiliary gas supply module, which is located in the oxygen supply branch A. The auxiliary gas supply module is used to receive the first gas output by the gas source interface 300', and use the first gas to provide respiratory support to the patient at a flow rate of 20-80 liters / minute. The gas output by the auxiliary gas supply module can be further humidified before being provided to the patient. The respiratory support provided by the auxiliary gas supply module is non-periodic respiratory support. Non-periodic respiratory support refers to continuous gas delivery to the patient. This method is actually high-flow oxygen therapy. In this way, the anesthesia machine can provide high-flow oxygen therapy to the patient when anesthesia is not needed, and has a wide range of applications.

[0223] In some embodiments, the anesthesia machine may include a main frame having a housing, and at least part of the ventilation device may be disposed in a housing space formed by the housing to form a whole with the anesthesia machine. That is, at least part of the ventilation device is integrated inside the anesthesia machine and integrated with the anesthesia machine. For example, the second ventilation control device included in the ventilation device is built into the main frame and is communicatively connected with the human-machine interaction device of the anesthesia machine.

[0224] The anesthesia machine of the present invention, because of the integrated ventilation device, can provide the following ventilation control: when the received breathing support mode is periodic anesthesia breathing support, the first gas is controlled to be mixed with the anesthetic to obtain the second gas, the second gas is controlled to enter the breathing circuit of the anesthesia machine, and the breathing circuit is controlled to periodically output the second gas to achieve periodic anesthesia breathing support; when the received breathing support mode is periodic breathing support, the first gas is controlled to enter the ventilation device of the anesthesia machine, and the ventilation device is controlled to periodically output the first gas to achieve periodic breathing support. For example, when the user wishes to provide jet ventilation through the anesthesia machine, the ventilation device can be controlled to output the periodic first gas at a certain frequency, and the periodic first gas can complete the jet ventilation after passing through the jet attachment.

[0225] The present invention creatively integrates the jet ventilation (JV) function into a general anesthesia machine, and the anesthesia machine can be directly used to support the application occasions where tracheal intubation ventilation cannot be performed, such as pharyngeal, tracheal, bronchial or lung surgery. For example, when using the anesthesia machine provided by the present invention, the doctor puts the spray needle or nozzle into the appropriate position of the pharynx or trachea, and uses the anesthesia machine for jet ventilation and respiratory support. On the one hand, the diameter of the spray needle or nozzle is very small, and there is enough space for the doctor to observe and perform laryngoscopy surgery; on the other hand, the characteristics of jet ventilation, especially the characteristics of high-frequency (3Hz or more, or 50-1500bpm) jet ventilation, the patient's lung pressure changes very little between inhalation and exhalation, and will not form a large fluctuation of lung breathing, which undoubtedly provides convenience for single lung ventilation or lung surgery. It is easy to understand that because jet ventilation uses a spray needle and a nozzle for ventilation, the airway system of the anesthesia machine and the patient's respiratory system will not form a sealed connection, so this ventilation cannot be synchronously injected with anesthetics through the spray needle and the nozzle, otherwise it will cause anesthetic leakage. In this case, anesthesia can be given by intravenous injection of anesthetic drugs.

[0226] The present invention integrates ventilation devices such as jet ventilation function into a general anesthesia machine, and integrates boards, display screens, etc. into one device, which brings convenience to the management of operating room equipment and allows more hospitals to perform anesthesia surgeries such as pharyngeal, tracheal, bronchial or lung surgeries that cannot be performed with endotracheal intubation and ventilation, thus having great clinical value.

[0227] like Figures 1 to 14 As shown, according to the sixth aspect of the present application, the present application provides a ventilation control method implemented by an interactive interface, and the interactive interface provides an anesthesia machine 100 setting area and a ventilation device 200 setting area; wherein the method includes:

[0228] The interactive interface receives the anesthesia machine 100 control information input by the user through the anesthesia machine 100 setting area, and sends the anesthesia machine 100 control instruction to the anesthesia machine 100 with which the communication connection is established according to the anesthesia machine 100 control information, so that the anesthesia machine 100 performs periodic anesthesia breathing support on the patient 400 according to the anesthesia machine 100 control instruction;

[0229] The interactive interface receives the ventilation device 200 control information input by the user through the ventilation device 200 setting area, and sends the ventilation device 200 control instruction to the ventilation device 200 with which the communication connection is established according to the ventilation device 200 control information, so that the ventilation device 200 performs periodic respiratory support on the patient 400 according to the ventilation device 200 control instruction;

[0230] Among them, the anesthesia machine 100 and the ventilation device 200 connected by the interactive interface can be selectively coupled or decoupled, so that the ventilation device 200 can independently provide periodic respiratory support to the patient 400 after being decoupled from the anesthesia machine 100; or when the ventilation device 200 is coupled with the anesthesia machine 100, the ventilation device 200 can provide periodic respiratory support to the patient 400 independently of the anesthesia machine 100, or the anesthesia system receives the operation of the ventilation device 200 through the anesthesia machine 100 to control the ventilation device 200 to provide periodic respiratory support to the patient 400 to meet the needs of different physiological conditions of the user.

[0231] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0232] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0233] The disclosure above provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described above. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0234] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. An anesthesia system, characterized in that: including anesthesia machines and ventilation devices; The anesthesia machine includes a flow monitoring device, a breathing circuit and a first ventilation control device; The flow monitoring device is used to adjust the flow of the first gas, the breathing circuit is used to receive the second gas and deliver the second gas to the patient, and the first ventilation control device is used to control the breathing circuit to deliver the second gas to the patient; wherein the first gas is mixed with an anesthetic to obtain the second gas; The ventilation device includes a second ventilation control device and a gas delivery branch; The gas delivery branch is used to receive a third gas, and the second ventilation control device is used to control the gas delivery branch to deliver the third gas to the patient at a first ventilation frequency; Wherein, the ventilation device is selectively coupled or decoupled with the anesthesia machine; after the ventilation device is coupled with the anesthesia machine, the ventilation device provides the third gas to the patient independently of the anesthesia machine, or the anesthesia system receives the operation of the ventilation device through the anesthesia machine to control the ventilation device to provide the third gas to the patient.

2. The anesthesia system according to claim 1, characterized in that: The anesthesia machine includes a first shell, and the ventilation device includes a second shell. The first shell has an attachment position configured to engage with the ventilation device; the attachment position is formed with a mounting position that cooperates with the second shell of the ventilation device. After the ventilation device is coupled to the anesthesia machine, the ventilation device is at least partially accommodated in the mounting position.

3. The anesthesia system according to claim 2, characterized in that: The attachment position is also provided with an auxiliary output interface, and the ventilation device is provided with an input interface, and the input interface is used to connect to the auxiliary output interface to obtain electrical energy from the anesthesia machine or to communicate with the anesthesia machine.

4. The anesthesia system according to claim 1, characterized in that: The anesthesia machine includes a first communication module, and the ventilation device includes a second communication module; the second communication module is used to establish a communication connection with the first communication module to achieve selective coupling between the ventilation device and the anesthesia machine; Alternatively, the anesthesia machine includes a gas source connector for providing the first gas, and the ventilation device also includes a gas source interface; the gas source interface is used to communicate with the gas source connector to achieve selective coupling of the ventilation device and the anesthesia machine.

5. An anesthesia system, characterized in that: An anesthesia machine includes a flow monitoring device, a breathing circuit and a first ventilation control device; The flow monitoring device is used to adjust the flow of the first gas; The breathing circuit is used to deliver a second gas to the patient, wherein the second gas is obtained by mixing the first gas with an anesthetic; The first ventilation control device is used to control the breathing circuit to deliver the second gas to the patient, thereby providing anesthesia breathing support for the patient; The anesthesia system further comprises a ventilation device, the anesthesia machine has an attachment position configured to engage with the ventilation device, and the ventilation device can be detachably mounted on the attachment position; the ventilation device comprises a second ventilation control device and a gas delivery branch; The gas delivery branch is used to receive a third gas and provide exhalation support to a patient, and the second ventilation control device controls the gas delivery branch to provide respiratory support to the patient at a first ventilation frequency.

6. The anesthesia system according to claim 2 or 5, characterized in that: A first engaging member is provided at the attachment position of the anesthesia machine, and a second engaging member is provided on the ventilation device. The first engaging member is engaged with the second engaging member to achieve coupling of the ventilation device and the anesthesia machine at the attachment position.

7. The anesthesia system according to claim 6, characterized in that: The first engaging member includes a fixing structure disposed at an attachment position of the anesthesia machine, and the second engaging member includes a mating structure configured to be mated on the fixing structure, wherein the mating structure is connected to the fixing structure.

8. The anesthesia system according to claim 7, characterized in that: The fixing structure comprises a support arm arranged on the outside or inside of the anesthesia machine, and the ventilation device is fixed on the support arm through the matching structure; or, The fixing structure comprises a recessed structure arranged on the outside or inside of the anesthesia machine, and the ventilation device is embedded in the recessed structure through the matching structure; or, The attachment position is a notch or a slot arranged on the outside of the anesthesia machine, the fixing structure includes a connecting piece arranged in the notch or the slot, and the ventilation device forms a detachable connection with the connecting piece through the matching structure.

9. The anesthesia system according to claim 5, characterized in that: The anesthesia machine further includes a gas source module for providing the first gas, and the ventilation device further includes a gas source interface. The ventilation device is connected to the gas source module via the gas source interface to receive the first gas from the anesthesia machine as the third gas.

10. The anesthesia system according to claim 1 or 5, characterized in that: The ventilation device communicates with the anesthesia machine in a wired or wireless manner.

11. The anesthesia system according to claim 10, characterized in that: The anesthesia machine also includes a first human-machine interaction device; the working information of the ventilation device is displayed through the first human-machine interaction device on the anesthesia machine; and / or the first human-machine interaction device is used to receive user input to control the ventilation device.

12. The anesthesia system according to claim 11, characterized in that: The ventilation device also includes a second human-computer interaction device, which is used to provide a display interface, on which the working information is displayed or a control interface is provided; the first human-computer interaction device is also used to display the same display interface in a display window or display area.

13. The anesthesia system according to claim 11, characterized in that: The anesthesia machine includes an anesthesia machine setting area for receiving user input for ventilation control of the anesthesia machine and a ventilation device setting area for receiving user input for ventilation control of the ventilation device on the same display interface of the human-computer interaction device.

14. The anesthesia system according to claim 10, characterized in that: The ventilation device is provided with a trigger switch; after the trigger switch is triggered, the ventilation device can establish a wireless connection with the anesthesia machine.

15. The anesthesia system according to claim 1 or 5, characterized in that: The anesthesia machine is provided with an auxiliary output interface, and the ventilation device is provided with an input interface, and the input interface is connected to the auxiliary output interface; wherein the auxiliary output interface includes an auxiliary signal output interface and / or an auxiliary power output interface, and the input interface includes a signal input interface and / or a power input interface, and the signal input interface and the power input interface are correspondingly connected to the auxiliary signal output interface and the auxiliary power output interface.

16. The anesthesia system according to claim 1 or 5, characterized in that: The anesthesia machine is provided with an auxiliary output interface, the ventilation device is provided with an input interface, and the input interface is connected to the auxiliary output interface; Among them, the auxiliary output interface includes an auxiliary power output interface, the input interface includes a power input interface, and the power input interface is connected to the auxiliary power output interface so that the anesthesia machine can power the ventilation device; the anesthesia machine and the ventilation device also include a wireless communication module so that the anesthesia machine can communicate with the ventilation device.

17. The anesthesia system according to claim 1 or 5, characterized in that: It also includes a control terminal; the control terminal is communicatively connected with the anesthesia machine and the ventilation device; The control terminal sends an anesthesia machine control instruction to the anesthesia machine according to the anesthesia machine control information input by the user, and sends a ventilation device control instruction to the ventilation device according to the ventilation device control information input by the user; The anesthesia machine controls the anesthesia breathing support for the patient according to the anesthesia machine control instruction; The ventilation device controls the breathing support for the patient according to the ventilation device control instruction.

18. The anesthesia system according to claim 1 or 5, characterized in that: The ventilation accessory of the ventilation device includes a jet accessory, which receives the third gas output by the second ventilation control device and enables the third gas to be output in the form of a high-frequency jet airflow.

19. The anesthesia system according to claim 18, characterized in that: The jet attachment comprises a jet channel, the output aperture of the jet channel is less than 4 mm; and / or the ventilation frequency of the high-frequency jet airflow for ventilating the patient is 50-1500 bpm.

20. An anesthesia machine, characterized in that: It includes a flow monitoring device, an anesthetic delivery device, a breathing circuit and a first ventilation control device; The flow monitoring device is used to adjust the flow of the first gas; The anesthetic delivery device is used to mix the first gas with the anesthetic to obtain a second gas, and deliver the second gas to the breathing circuit; The breathing circuit is used to deliver the second gas to the patient; The first ventilation control device is used to control the breathing circuit to deliver the second gas to the patient, thereby providing anesthesia breathing support for the patient; Among them, the anesthesia machine has an attachment position configured to be provided with a first coupling member; the first coupling member includes at least one of the following: a fixed structure for connecting an external ventilation device to the anesthesia machine, a gas source connector for delivering the first gas to the external ventilation device, an auxiliary power supply output interface for providing electrical energy to the external ventilation device, and an auxiliary signal output interface for transmitting signals with the external ventilation device.

21. An anesthesia machine, characterized in that: It includes an anesthesia machine main unit, a flow monitoring device, a breathing circuit, a first ventilation control device and a ventilation device; The flow monitoring device is used to adjust the flow of the first gas provided by the gas source module; The breathing circuit is used to deliver a second gas to the patient, wherein the second gas is obtained by mixing the first gas with an anesthetic; The first ventilation control device is used to control the breathing circuit to deliver the second gas to the patient, so that the anesthesia machine provides anesthesia breathing support for the patient; The ventilation device is used to receive the first gas provided by the gas source module, and to provide respiratory support for the patient by delivering the first gas to the patient at a first ventilation frequency and / or a second ventilation frequency; wherein at least part of the ventilation device is arranged inside the mainframe of the anesthesia machine; The first gas provided by the gas source module is an oxygen-containing gas, and the anesthesia machine provides anesthesia breathing support and / or breathing support for the patient according to the received breathing support mode.

22. The anesthesia machine according to claim 21, characterized in that: The anesthesia machine main unit includes a first shell, and at least part of the ventilation device is arranged inside the first shell; or, a pressure-stabilizing valve is arranged in the anesthesia machine.

23. The anesthesia machine according to claim 21, characterized in that: It also includes a human-machine interaction device; the human-machine interaction device is used to receive the breathing support mode provided by the anesthesia machine to the patient input by the user; the ventilation device is also used for at least one of the following: When the respiratory support mode provided by the anesthesia machine is superimposed ventilation, the first gas is delivered to the patient at the first ventilation frequency and the second ventilation frequency at the same time; When the respiratory support mode provided by the anesthesia machine is high-frequency ventilation, using the first gas to provide respiratory support for the patient at the first ventilation frequency; When the respiratory support mode provided by the anesthesia machine is normal frequency ventilation, the first gas is used to provide respiratory support for the patient at the second ventilation frequency.

24. The anesthesia machine according to claim 21, characterized in that: The ventilation device includes a gas delivery branch, a second control valve and an output port. The ventilation device receives the first gas through the gas delivery branch. The second control valve is arranged in the gas delivery branch and is controlled to switch the flow rate at the first ventilation frequency so that the first gas output from the output port forms a high-frequency airflow.

25. The anesthesia machine according to claim 24, characterized in that: It also includes a jet accessory connected to the ventilation device, wherein the jet accessory receives the first gas output by the ventilation device and enables the first gas to be output in the form of a high-frequency jet airflow.

26. The anesthesia machine according to claim 24 or 25, characterized in that: Also includes: a gas source module for providing the first gas, the gas source module comprising an oxygen unit, and the first gas comprising oxygen provided by the oxygen unit; The ventilation device includes: an oxygen branch, a second control valve and an output port; the oxygen unit is connected to the output port through the oxygen branch, and the second control valve is arranged in the oxygen branch to control the oxygen flow rate of the oxygen branch and to form a high-frequency airflow of the oxygen output from the output port.

27. The anesthesia machine according to claim 24 or 25, characterized in that: Also includes: a gas source module for providing the first gas, the gas source module comprising an air unit, and the first gas comprising air provided by the air unit; The ventilation device comprises: an air branch, a second control valve and an output port; The air unit is connected to the output port through the air branch, and the second control valve is arranged in the air branch to control the air flow of the air branch and to form a high-frequency airflow of the air output from the output port.

28. The anesthesia machine according to claim 24 or 25, characterized in that: Also includes: a gas source module for providing the first gas, the gas source module comprising an oxygen unit for providing oxygen and an air unit for providing air, the first gas comprising oxygen provided by the oxygen unit and air provided by the air unit; The ventilation device comprises: an oxygen branch, an air branch and an output port; the oxygen branch is connected to the oxygen unit, and the air branch is connected to the air unit; The oxygen branch and the air branch are connected to the output port after converging; wherein a first control valve is provided in the oxygen branch, and the first control valve is used to control the oxygen flow rate of the oxygen branch and to form the oxygen in the oxygen branch into a high-frequency airflow, and a third control valve is provided in the air branch, and the third control valve is used to control the air flow rate of the air branch and to form the air in the air branch into a high-frequency airflow; Alternatively, the ventilation device also includes a second control valve; the oxygen branch and the air branch are connected to the output port through the second control valve after converging; wherein a first control valve is provided in the oxygen branch, and a third control valve is provided in the air branch, the first control valve is used to control the oxygen flow rate of the oxygen branch, the third control valve is used to control the air flow rate of the air branch, and the second control valve is used to form a high-frequency airflow from the mixed gas of the air and oxygen after converging.

29. The anesthesia machine according to claim 24 or 25, characterized in that: The high frequency airflow formed at the output port ventilates the patient at a ventilation frequency of at least 3 Hz or 50-1500 bpm.

30. The anesthesia machine according to claim 21, characterized in that: The ventilation device includes a gas delivery branch, a second control valve and an output port. The second control valve is arranged in the gas delivery branch and is used to control the ventilation device to provide respiratory support at the first ventilation frequency and / or the second ventilation frequency. The ventilation device receives the first gas through the gas delivery branch, and the first gas is output through the jet accessory connected to the output port and formed into a jet gas flow.

31. The anesthesia machine according to claim 30, characterized in that: Also included is a jet accessory connected to the ventilation device, the jet accessory receives the first gas output by the ventilation device and forms a jet gas flow with the first gas; The spray attachment includes a spray channel, and the output aperture of the spray channel is less than 4 mm.

32. The anesthesia machine according to claim 30 or 31, characterized in that: Also includes: a gas source module for providing the first gas, the gas source module comprising an oxygen unit, and the first gas comprising oxygen provided by the oxygen unit; The ventilation device includes: an oxygen branch, a second control valve and an output port; the oxygen unit is connected to the output port through the oxygen branch, and the output port is used to connect a jet accessory. The second control valve is arranged in the oxygen branch, and is used to control the oxygen flow rate of the oxygen branch and to make the oxygen output from the output port form a jet airflow of the first ventilation frequency and / or the second ventilation frequency after passing through the jet accessory.

33. The anesthesia machine according to claim 30 or 31, characterized in that: Also includes: a gas source module for providing the first gas, the gas source module comprising an air unit, and the first gas comprising air provided by the air unit; The ventilation device comprises: an air branch, a second control valve and an output port; The air unit is connected to the output port through the air branch, and the output port is used to connect the jet accessory. The second control valve is arranged in the air branch, and is used to control the air flow of the air branch and to make the air output from the output port form the jet airflow of the first ventilation frequency and / or the second ventilation frequency after passing through the jet accessory.

34. The anesthesia machine according to claim 30 or 31, characterized in that: Also includes: a gas source module for providing the first gas, the gas source module comprising an oxygen unit for providing oxygen and an air unit for providing air, the first gas comprising oxygen provided by the oxygen unit and air provided by the air unit; The ventilation device comprises: an oxygen branch, an air branch and an output port; the oxygen branch is connected to the oxygen unit, and the air branch is connected to the air unit; The oxygen branch and the air branch are connected to the output port after confluence, and the output port is used to connect the jet accessory; wherein, a first control valve is provided in the oxygen branch, and the first control valve is used to control the oxygen flow rate of the oxygen branch and to form a periodic airflow of the oxygen in the oxygen branch; a third control valve is provided in the air branch, and the third control valve is used to control the air flow rate of the air branch and to form a periodic airflow of the air in the air branch; the mixed gas after the periodic airflow of the oxygen branch and the periodic airflow of the air branch converge is output through the jet accessory connected to the output port, forming a jet airflow of the first ventilation frequency and / or the second ventilation frequency; Alternatively, the ventilation device also includes a second control valve; the oxygen branch and the air branch are connected to the output port through the second control valve after converging, and the output port is used to connect a jet accessory; wherein a first control valve is provided in the oxygen branch, and a third control valve is provided in the air branch, the first control valve is used to control the oxygen flow rate of the oxygen branch, the third control valve is used to control the air flow rate of the air branch, and the second control valve is used to make the mixed gas of the air and oxygen after converging form a jet airflow of the first ventilation frequency and / or the second ventilation frequency when it is output through the jet accessory connected to the output port.

35. The anesthesia machine according to claim 21, characterized in that: The ventilation device includes a second ventilation control device and a gas delivery branch, wherein the second ventilation control device is used to control the gas delivery branch to provide periodic respiratory support to the patient; or, the ventilation device includes a gas delivery branch, and the first ventilation control device is also used to control the gas delivery branch to provide periodic respiratory support to the patient.

36. The anesthesia machine according to claim 21, characterized in that: The ventilation device comprises a first ventilation device and a second ventilation device; the first ventilation device and the second ventilation device can be controlled to work simultaneously; The first ventilation device is used to provide respiratory support to the patient using the first gas at the first ventilation frequency; The second ventilation device is used to provide respiratory support to the patient using the first gas at the second ventilation frequency.

37. The anesthesia machine according to claim 36, characterized in that: The first ventilation device includes a first gas delivery branch, and the second ventilation device includes a second gas delivery branch; the first gas delivery branch is provided with a first pressure regulating component for controlling the gas pressure provided by the first ventilation device, and the second gas delivery branch is provided with a second pressure regulating component for controlling the gas pressure provided by the second ventilation device.

38. The anesthesia machine according to claim 37, characterized in that: The first pressure regulating assembly and the second pressure regulating assembly are both pressure regulating valves, and the pressure regulating valves control the gas pressures provided by the first ventilation device and the second ventilation device respectively by adjusting the opening sizes.

39. The anesthesia machine according to claim 36, characterized in that: The first ventilation device includes a first gas delivery branch and a first control component arranged in the first gas delivery branch, and the first control component is used to control the oxygen concentration of the first gas output by the first ventilation device; the second ventilation device includes a second gas delivery branch and a second control component arranged in the second gas delivery branch, and the second control component is used to control the oxygen concentration of the first gas output by the second ventilation device.

40. The anesthesia machine according to claim 39, characterized in that: A first pressure regulating component is arranged in the first gas delivery branch, and the first pressure regulating component is arranged upstream of the first control component; a second pressure regulating component is arranged in the second gas delivery branch, and the second pressure regulating component is arranged upstream of the second control component.

41. The anesthesia machine according to claim 39 or 40, characterized in that: Also includes at least one of the following: an oxygen interface for connecting to an external oxygen source or an internal oxygen source, and an air interface for connecting to an external air source or an internal air source; The first gas includes oxygen and / or air; the first ventilation device and the second ventilation device are both connected to the oxygen interface and / or the air interface.

42. The anesthesia machine according to claim 41, characterized in that The anesthesia machine also includes a fifth pressure regulating valve and a sixth pressure regulating valve, both of which are used to control the pressure of the gas in the gas circuit; the first gas delivery branch is connected to the oxygen interface through the fifth pressure regulating valve, and / or is connected to the air interface through the sixth pressure regulating valve, the second gas delivery branch is connected to the oxygen interface through the fifth pressure regulating valve, and / or is connected to the air interface through the sixth pressure regulating valve, and the first control component and the second control component are both arranged downstream of the fifth pressure regulating valve and the sixth pressure regulating valve.

43. The anesthesia machine according to claim 41, characterized in that The driving pressure of the first ventilation device when providing respiratory support to the patient is lower than the driving pressure of the second ventilation device when providing respiratory support to the patient.

44. The anesthesia machine according to claim 41, characterized in that The first ventilation device comprises: a first oxygen branch, a first air branch and a first output port, wherein the first oxygen branch and the first air branch are connected to the first output port after merging; the second ventilation device comprises: a second oxygen branch, a second air branch and a second output port, wherein the second oxygen branch and the second air branch are connected to the second output port after merging; wherein The input end of the first oxygen branch is in communication with the oxygen interface, and the input end of the first air branch is in communication with the air interface; a first pressure regulating valve is provided in the first oxygen branch, and the first pressure regulating valve is used to control the oxygen pressure of the first oxygen branch; a second pressure regulating valve is provided in the first air branch, and the second pressure regulating valve is used to control the air pressure of the first air branch; the input end of the second oxygen branch is in communication with the oxygen interface, and the input end of the second air branch is in communication with the air interface; a third pressure regulating valve is provided in the second oxygen branch, and the third pressure regulating valve is used to control the oxygen pressure of the second oxygen branch; a fourth pressure regulating valve is provided in the second air branch, and the fourth pressure regulating valve is used to control the air pressure of the second air branch; or, The anesthesia machine includes a fifth pressure regulating valve and a sixth pressure regulating valve, both of which are used to control the pressure of the gas in the gas circuit; the input end of the first oxygen branch is connected to the oxygen interface through the fifth pressure regulating valve, and the input end of the first air branch is connected to the air interface through the sixth pressure regulating valve; the input end of the second oxygen branch is connected to the oxygen interface through the fifth pressure regulating valve, and the input end of the second air branch is connected to the air interface through the sixth pressure regulating valve.

45. The anesthesia machine according to claim 44, characterized in that A fourth control valve is provided in the first oxygen branch, and the fourth control valve is located downstream of the first pressure regulating valve or the fifth pressure regulating valve; the fourth control valve is used to control the oxygen flow rate of the first oxygen branch and make the oxygen in the first oxygen branch form an airflow with a first ventilation frequency; a fifth control valve is provided in the first air branch, and the fifth control valve is located downstream of the second pressure regulating valve or the sixth pressure regulating valve; the fifth control valve is used to control the air flow rate of the first air branch and make the air in the first air branch form an airflow with a first ventilation frequency; a sixth control valve is provided in the second oxygen branch, and the sixth control valve is located downstream of the third pressure regulating valve or the fifth pressure regulating valve; the sixth control valve is used to control the oxygen flow rate of the second oxygen branch and make the oxygen in the second oxygen branch form an airflow with a second ventilation frequency; a seventh control valve is provided in the second air branch, and the seventh control valve is located downstream of the fourth pressure regulating valve or the sixth pressure regulating valve; the seventh control valve is used to control the air flow rate of the second air branch and make the air in the second air branch form an airflow with a second ventilation frequency; or, The first ventilation device also includes an eighth control valve, which is located downstream of the confluence of the first oxygen branch and the first air branch; the eighth control valve is used to control the flow rate of the first gas formed by the mixture of oxygen and air and the airflow of the first gas to form a first ventilation frequency; the second ventilation device also includes a ninth control valve, which is located downstream of the confluence of the second oxygen branch and the second air branch; the ninth control valve is used to control the flow rate of the first gas formed by the mixture of oxygen and air and the airflow of the first gas to form a second ventilation frequency.

46. ​​The anesthesia machine according to claim 41, characterized in that The first ventilation device comprises: a first oxygen branch and a first output port, the output end of the first oxygen branch is connected to the first output port; the second ventilation device comprises: a second oxygen branch and a second output port, the output end of the second oxygen branch is connected to the second output port; wherein, The input end of the first oxygen branch is communicated with the oxygen interface, and a first pressure regulating valve and a fourth control valve are provided in the first oxygen branch, and the fourth control valve is located downstream of the first pressure regulating valve; the first pressure regulating valve is used to control the oxygen pressure of the first oxygen branch, and the fourth control valve is used to control the oxygen flow of the first oxygen branch and to make the oxygen in the first oxygen branch form an airflow with a first ventilation frequency; the input end of the second oxygen branch is communicated with the oxygen interface, and a third pressure regulating valve and a sixth control valve are provided in the second oxygen branch, and the sixth control valve is located downstream of the third pressure regulating valve; the third pressure regulating valve is used to control the oxygen pressure of the second oxygen branch, and the sixth control valve is used to control the oxygen flow of the second oxygen branch and to make the oxygen in the second oxygen branch form an airflow with a second ventilation frequency; or, The anesthesia machine includes a fifth pressure regulating valve, which is used to control the pressure of the gas in the gas circuit; the input end of the first oxygen branch is connected to the oxygen interface through the fifth pressure regulating valve; a fourth control valve is provided in the first oxygen branch, the fourth control valve is located downstream of the fifth pressure regulating valve, and the fourth control valve is used to control the oxygen flow of the first oxygen branch and make the oxygen in the first oxygen branch form an airflow with a first ventilation frequency; the input end of the second oxygen branch is connected to the oxygen interface through the fifth pressure regulating valve, and a sixth control valve is provided in the second oxygen branch, the sixth control valve is located downstream of the fifth pressure regulating valve, and the sixth control valve is used to control the oxygen flow of the second oxygen branch and make the oxygen in the second oxygen branch form an airflow with a second ventilation frequency.

47. The anesthesia machine according to claim 41, characterized in that The first ventilation device comprises: a first air branch and a first output port, the output end of the first air branch is connected to the first output port; the second ventilation device comprises: a second air branch and a second output port, the output end of the second air branch is connected to the second output port; wherein, The input end of the first air branch is communicated with the air interface, and a second pressure regulating valve and a fifth control valve are provided in the first air branch, and the fifth control valve is located downstream of the second pressure regulating valve; the second pressure regulating valve is used to control the oxygen pressure of the first air branch, and the fifth control valve is used to control the oxygen flow rate of the first air branch and to make the air in the first air branch form an airflow with a first ventilation frequency; the input end of the second air branch is communicated with the air interface, and a fourth pressure regulating valve and a seventh control valve are provided in the second air branch, and the seventh control valve is located downstream of the fourth pressure regulating valve; the fourth pressure regulating valve is used to control the air pressure of the second air branch, and the seventh control valve is used to control the air flow rate of the second air branch and to make the air in the second air branch form an airflow with a second ventilation frequency; or, The anesthesia machine includes a sixth pressure regulating valve, which is used to control the pressure of the gas in the air circuit; the input end of the first air branch is connected to the air interface through the sixth pressure regulating valve; a fifth control valve is provided in the first air branch, the fifth control valve is located downstream of the sixth pressure regulating valve, and the fifth control valve is used to control the air flow of the first air branch and make the air in the first air branch form an airflow with a first ventilation frequency; the input end of the second air branch is connected to the air interface through the sixth pressure regulating valve; a seventh control valve is provided in the second air branch, the seventh control valve is located downstream of the sixth pressure regulating valve, and the seventh control valve is used to control the air flow of the second air branch and make the air in the second air branch form an airflow with a second ventilation frequency.

48. The anesthesia machine according to claim 23, characterized in that: Also included is an anesthetic delivery device for providing an anesthetic; The human-machine interaction device includes a display, and when the respiratory support mode received by the human-machine interaction device is superimposed ventilation, high-frequency ventilation or normal-frequency ventilation, the display is used to output a prompt message for closing the anesthetic delivery device or a prompt message for switching the patient's anesthesia mode; or, The anesthetic delivery device is an electronic vaporizer can, and when the respiratory support mode received by the human-computer interaction device is superimposed ventilation, high-frequency ventilation or normal-frequency ventilation, the anesthesia machine is further used to determine whether the electronic vaporizer can is turned off, and after determining that the electronic vaporizer can is turned off, the anesthesia machine provides corresponding respiratory support.

49. The anesthesia machine according to any one of claims 21 to 23, characterized in that: Providing respiratory support to the patient includes providing different flow rates of the first gas to the patient in two different time periods of a respiratory cycle, wherein the flow rate provided in one time period is smaller than that in another time period or the flow rate provided in one time period is zero.

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