Animal ventilation equipment

Abstract

This application provides an animal ventilation device, including a breathing circuit, an anesthesia dispenser, a controller, and a control receiver. The control receiver outputs the received ventilation mode and / or ventilation parameters to the controller. The breathing circuit includes an inspiratory drive module, an inspiratory branch, an expiratory branch, and a breathing interface. The two ends of the inspiratory branch are connected to the inspiratory drive module and the breathing interface, respectively, and the expiratory branch discharges the received exhaled gas. The inspiratory branch has a first port and a second port. The anesthesia dispenser includes an inlet interface and an outlet interface. In the respiratory support mode, the first port and the second port of the inspiratory branch are connected, and the inspiratory drive module outputs an inspiratory auxiliary airflow through the inspiratory branch and the breathing interface. In the anesthesia mode, the inlet interface and the outlet interface of the anesthesia dispenser are connected to the first port and the second port in the inspiratory branch, respectively, and the inspiratory drive module and the anesthesia dispenser output an inspiratory auxiliary airflow containing anesthetic through the inspiratory branch and the breathing interface.

Description

Technical Field

[0001] This application relates to the field of ventilation equipment technology, and more particularly to an animal ventilation device. Background Technology

[0002] With the development of pet medical care and animal research, micro-ventilation and micro-anesthesia are required for small animals in animal experiments and surgeries. Therefore, animal ventilation equipment plays a crucial role. Animal anesthesia involves delivering anesthetic agents into the alveoli of the animal's lungs through the inspiratory branch of the ventilation device. After diffusion into the bloodstream, the anesthetic directly inhibits the central nervous system, achieving general anesthesia. This inhalation anesthesia method greatly reduces chronic damage and impact on animals, thus becoming the mainstream method of animal anesthesia. However, existing animal ventilation devices are often limited in function; some only provide anesthesia, while others only provide respiration. If both are needed, new equipment must be purchased, which is costly, difficult to use, and cannot be flexibly configured to meet different application scenarios. Furthermore, existing anesthesia and respiration devices are not portable enough. Summary of the Invention

[0003] Therefore, this application provides an animal ventilation device to solve the above-mentioned problems.

[0004] This application provides an animal ventilation device, comprising: a controller, a breathing circuit, an anesthesia dispenser, and a control receiver; the control receiver is connected to the controller and outputs received ventilation modes and / or ventilation parameters to the controller, the ventilation modes including a respiratory support mode and an anesthesia mode; the breathing circuit includes an inspiratory drive module, an inspiratory branch, an expiratory branch, and a breathing interface, one end of the inspiratory branch is connected to the inspiratory drive module, the other end of the inspiratory branch is connected to the breathing interface, the expiratory branch is connected to the breathing interface, and the expiratory branch discharges the exhaled gas received by the breathing interface; the inspiratory branch has a first port and a second port, and the anesthesia dispenser includes an inlet port and an outlet port.

[0005] In the breathing support mode, the first port and the second port of the inspiratory branch are connected, and the inspiratory drive module outputs inspiratory auxiliary airflow through the inspiratory branch and the breathing interface under the control of the controller;

[0006] In the anesthesia mode, the air inlet of the anesthesia dispenser is connected to the first port in the inspiratory branch, the air outlet of the anesthesia dispenser is connected to the second port in the inspiratory branch, and the controller controls the inspiratory drive module and the anesthesia dispenser to output an inspiratory auxiliary airflow containing anesthetic through the inspiratory branch and the breathing interface.

[0007] In this application, the animal ventilation device supports not only the breathing mode but also the anesthesia mode. Furthermore, when transportation is required, especially long-distance manual transportation, the anesthesia dispenser can be detached from the breathing circuit. After reaching the destination, the anesthesia dispenser can be reassembled back into the breathing circuit, thus making it convenient to carry. Attached Figure Description

[0008] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0009] Figure 1 This is a schematic diagram of the structure of an animal ventilation device provided in one embodiment of this application;

[0010] Figure 2 This is a structural block diagram of an animal ventilation device provided in an embodiment of this application;

[0011] Figure 3 This is an exploded view of the airway switching device provided in the first embodiment of this application;

[0012] Figure 4 This is a cross-sectional schematic diagram of the airway switching device provided in the first embodiment of this application when the ventilation channel is in the first position;

[0013] Figure 5 This is a three-dimensional structural diagram of the airway switching device provided in the first embodiment of this application when the ventilation channel is in the first position.

[0014] Figure 6 A schematic diagram of the cross-sectional connection between the airway switching device and the anesthesia supply device when the ventilation channel is in the second position according to a first embodiment of this application;

[0015] Figure 7 A schematic diagram of an airway switching device provided in a second embodiment of this application;

[0016] Figure 8 A schematic diagram showing the connection between the anesthesia supply device and the inspiratory branch, provided for another embodiment of this application;

[0017] Figure 9 A partial structural block diagram of an animal ventilation device provided in one embodiment;

[0018] Figure 10 A schematic diagram of the airway of an animal ventilation device provided in one embodiment. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0020] In the description of this application, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also refer to the internal connection of two components; it can be a communication connection; or it can be an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0021] In the description of this application, terms such as "upper", "lower", "top", "bottom", "directly below", etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0022] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of an animal ventilation device provided in one embodiment of this application; Figure 2 This is a structural block diagram of an animal ventilation device provided in one embodiment of this application.

[0023] like Figure 1 and Figure 2 As shown, the animal ventilation device 1 includes: a breathing circuit 10, an anesthesia supply device 20, a controller 30, and a control receiver 40; the control receiver 40 is connected to the controller 30 and outputs the received ventilation mode and / or ventilation parameters to the controller 30, the ventilation mode including a respiratory support mode and an anesthesia mode; the breathing circuit 10 includes an inspiratory branch 11, an expiratory branch 12, an inspiratory drive module 13, and a breathing interface 14, one end of the inspiratory branch 11 is connected to the inspiratory drive module 13, the other end of the inspiratory branch 11 is connected to the breathing interface 14, the expiratory branch 12 is connected to the breathing interface 14, and the expiratory branch 12 discharges the exhaled gas received by the breathing interface 14; the inspiratory branch 11 has a first port 111 and a second port 112, and the anesthesia supply device 20 includes an inlet port 21 and an outlet port 22.

[0024] In the breathing support mode, the first port 111 and the second port 112 of the inspiratory branch 11 are connected, and the inspiratory drive module 13 outputs inspiratory auxiliary airflow through the inspiratory branch 11 and the breathing interface 14 under the control of the controller 30.

[0025] In the anesthesia mode, the air inlet 21 of the anesthesia supply device 20 is connected to the first port 111 of the inhalation branch 11, and the air outlet 22 of the anesthesia supply device 20 is connected to the second port 112 of the inhalation branch 11. The controller 30 controls the inhalation drive module 13 and the anesthesia supply device 20 to output an inhalation-assisted airflow containing anesthetic through the inhalation branch 11 and the breathing interface 14.

[0026] In this application, the inspiratory branch 11 of the animal ventilation device 1 includes a first port 111 and a second port 112. The first port 111 and the second port 112 can be directly connected, or the anesthesia supply device 20 can be directly connected to the first port 111 and the second port 112. Therefore, the animal ventilation device 1 has both a respiratory support mode and an anesthesia mode. Furthermore, when transportation is required, especially long-distance manual transportation, the anesthesia supply device 20 can be detached from the inspiratory branch 11 and reassembled into the inspiratory branch 11 after reaching the destination, thus facilitating transport.

[0027] The anesthesia supply device 20 may be, but is not limited to, a mechanical vaporizer or an electronic vaporizer.

[0028] The intake drive module 13 may be, but is not limited to, a turbine or an air pump.

[0029] The user sets the ventilation mode and / or ventilation parameters through the control receiver 40. These ventilation parameters include tidal volume, inspiratory-expiratory rate, and inspiratory-expiratory ratio. Specifically, the control receiver 40 can be a device capable of receiving user settings, such as a keyboard or touchscreen, or it can be a receiver or communication module within a system used to receive signals.

[0030] Please refer to the following: Figure 1-6 , Figure 3 This is an exploded view of the airway switching device provided in the first embodiment of this application; Figure 4 This is a cross-sectional schematic diagram of the airway switching device provided in the first embodiment of this application when the ventilation channel is in the first position; Figure 5 This is a three-dimensional structural diagram of the airway switching device provided in the first embodiment of this application when the ventilation channel is in the first position. Figure 6This is a cross-sectional connection diagram of the airway switching device and the anesthesia supply device when the ventilation channel is in the second position, according to a first embodiment of this application.

[0031] like Figure 1-4 As shown, in one embodiment, the intake branch 11 is further provided with an airway switching device 50. The airway switching device 50 includes a housing 51 and a movable member 52 disposed within the housing 51. The movable member 52 is provided with an air passage 521. A first through hole 53 and a second through hole 54 are respectively opened on the two side walls 511 of the housing 51 near the two ends of the air passage 521. The first through hole 53 communicates with the first port 111 of the intake branch 11, and the second through hole 54 communicates with the second port 112 of the intake branch 11.

[0032] like Figure 4 and Figure 5 As shown, in respiratory support mode, the ventilation channel 521 is located in the first position, with its two ends connected to the first through hole 53 and the second through hole 54 respectively, so that the first port 111 and the second port 112 of the inhalation branch 11 are connected.

[0033] like Figure 6 As shown, in anesthesia mode, the ventilation channel 521 is located in the second position, the air inlet 21 of the anesthesia supply device 20 is connected to the first through hole 53, and the air outlet 22 of the anesthesia supply device 20 is connected to the second through hole 54.

[0034] In this embodiment, in respiratory support mode, the ventilation channel 521 is connected to the inspiratory branch 11, and the first port 111 and the second port 112 are connected by the ventilation channel 521. In anesthesia mode, the ventilation channel 521 is not connected to the inspiratory branch 11, and the anesthesia supply device 20 is connected to the inspiratory branch 11, and the anesthesia supply device 20 is connected to the first port 111 and the second port 112. By connecting the first port 111 and the second port 112 through the ventilation channel 521, it is not necessary to manually connect the first port 111 and the second port 112. It is only necessary to position the ventilation channel 521 in the first position. The method of positioning the ventilation channel 521 in the first position can be semi-automatic or fully automatic, but both are more convenient than manually connecting the first port 111 and the second port 112.

[0035] It should be noted that the housing 51 is not limited to Figure 3 The shape shown in the example. The movable part 52 can be as follows: Figure 3In other embodiments, the movable element, as shown in the example cube, can also be a cylinder, an ellipsoid, or the like, and is not limited to the shapes illustrated.

[0036] Furthermore, such as Figure 1-4 As shown, in a first embodiment, the airway switching device 50 further includes an elastic member 55, one end of which is fixedly connected to the bottom 512 of the housing 51, and the other end of which is fixedly connected to and supports the movable member 52.

[0037] In anesthesia mode, the anesthesia supply device 20 is placed on top 522 of the movable member 52, and the elastic member 55 is compressed under the gravity of the anesthesia supply device 20 so that the ventilation channel 521 in the movable member 52 is located in the second position, which is directly below the first position.

[0038] When switching to respiratory support mode, the anesthesia dispenser 20 is removed from the top 522 of the movable member 52, and the elastic member 55 elastically recovers to push the movable member 52 to move the ventilation channel 521 to the first position.

[0039] In this embodiment, after the anesthesia supply device 20 is removed from the top of the ventilation channel 521, the movable member 52 is pushed by the elastic member 55 to move the ventilation channel 521 to the first position, so that the first port 111 and the second port 112 in the inhalation branch 11 are connected. This method of placing the ventilation channel 521 in the first position is a semi-automatic method, which is more convenient than removing the anesthesia supply device 20 and manually connecting the first port 111 and the second port 112.

[0040] In this embodiment, the length of the elastic element 55 in its natural state is greater than or equal to the length of the surface from the first port 111 to the bottom 512 of the housing 51 facing the movable element 52. This ensures that, without the aid of other devices, the elastic element 55 can elastically restore the movable element 52 to move away from the bottom 512 of the housing 51, and automatically connect the first port 111 and the second port 112 with the ventilation channel 521 in the movable element 52 for ventilation. It is understood that the number of elastic elements 55 can be set according to actual needs; in one specific embodiment, four elastic elements 55 are provided.

[0041] Furthermore, the airway switching device 50 also includes a guide member 56, one end of which is connected to the movable member 52, and the other end is connected to the bottom 512 of the housing 51. The guide member 56 passes through the elastic member 55. The guide member 56 guides the elastic member 55; at least during the process of the elastic member 55 being compressed and moving towards the bottom 512 of the housing 51, it prevents the elastic member 55 from partially moving circumferentially due to compression.

[0042] Specifically, in one embodiment, one end of the guide member 56 is a capped end M, and the other end is a capless end N. The capless end N passes through the top 522 of the movable member 52 and connects to the bottom 512 of the housing 51. The capped end M is connected to the top 522 of the movable member 52. In this embodiment, when the elastic member 55 is not connected to the bottom 512 of the housing 51 and the movable member 52, the capped end M of the guide member 56 can also prevent the elastic member 55 from ejecting the movable member 52 out of the airway switching device 50 during the elastic recovery process.

[0043] Furthermore, the length of the guide member 56 is almost equal to the length of the surface from the first port 111 to the bottom 512 of the housing 51 facing the movable member 52. Since the thickness of the movable member 52 can be adjusted, the specific position of the ventilation channel 521 in the ventilation channel 521 can also be adjusted. At the same time, the capless end N of the guide member 56 can penetrate the bottom 512 of the housing 51 and be fixed to the side of the bottom 512 of the housing 51 away from the movable member 52. Therefore, the length of the guide member 56 is not exactly equal to the length of the surface from the first port 111 to the bottom 512 of the housing 51 facing the movable member 52. At this time, when the length of the elastic member 55 in its natural state is greater than the length of the surface from the first port 111 to the bottom 512 of the housing 51 facing the movable member 52, the guide member 56 also has a limiting function. During the elastic recovery process of the elastic member 55, the capped end M of the guide member 56 will limit the maximum recovery degree of the elastic member 55, and the elastic member 55 is still in a compressed state at the maximum recovery degree. Furthermore, since the length of the guide member 56 is almost equal to the length of the surface from the first port 111 to the bottom 512 of the housing 51 facing the movable member 52, a tight seal can be ensured between the first port 111, the second port 112, and the ventilation channel 521.

[0044] It should be noted that in some other embodiments, when the length of the guide 56 is long enough, even if both ends of the guide 56 are capless ends N, it can prevent the elastic member 55 from ejecting the movable member 52 out of the airway switching device 50 during the elastic recovery process.

[0045] Please see Figure 7 , Figure 7 This is a schematic diagram of the airway switching device provided in a second embodiment of this application.

[0046] like Figure 1 , Figure 2 and Figure 7 As shown, a second embodiment is similar to the first embodiment, but unlike the first embodiment, in the second embodiment, the airway switching device 50 further includes a driving member 57, which is electrically connected to the controller 30.

[0047] When switching to respiratory support mode, the controller 30 controls the drive unit 57 to move the ventilation channel 521 to the first position;

[0048] When switching to anesthesia mode, the controller 30 controls the drive unit 57 to move the ventilation channel 521 to the second position.

[0049] In this embodiment, the ventilation channel 521 is moved to the first position or the second position by the driving component 57, so that the ventilation channel 521 can be connected to the intake branch 11 and disconnected from the intake branch 11 in a fully automatic operation, which is more convenient.

[0050] Furthermore, the driving component 57 includes a body 571 and a driving rod 572. The body 571 is connected to the housing 51 of the airway switching device 50, and the driving rod 572 is connected to the movable component 52. The body 571 is connected to the driving rod 572, and the body 571 provides driving force to the driving rod 572.

[0051] When switching to respiratory support mode, the controller 30 controls the drive rod 572 to drive the ventilation channel 521 in the movable part 52 to move to the first position;

[0052] When switching to anesthesia mode, the controller 30 controls the drive rod 572 to drive the ventilation channel 521 in the movable part 52 to move to the second position.

[0053] The driving component 57 may be, but is not limited to, a motor drive device, a hydraulic drive device, or a pneumatic drive device. Correspondingly, the body 571 includes one of a motor, a hydraulic cylinder, or a pneumatic cylinder.

[0054] What needs to be known is that Figure 7 The example only illustrates the connection between the body 571 and the bottom 512 of the housing 51; however, in some other embodiments, the body 571 may also be connected to the side wall 511 of the housing 51. The movable member 52 can move vertically (i.e., from the bottom 512 of the housing 51 to the movable member 52) and laterally (i.e., in a direction perpendicular to the vertical direction and perpendicular to the line connecting the two side walls 511).

[0055] In the second embodiment, the airway switching device 50 may include the elastic element 55 and / or the guide element 56, or it may not include the elastic element 55 and / or the guide element 56. Figure 7 The diagram shows the case excluding the elastic element 55 and the guide element 56.

[0056] Please see Figure 8 , Figure 8 This is a schematic diagram showing the connection between the anesthesia supply device and the inspiratory branch, provided in another embodiment of this application.

[0057] like Figure 8 As shown, in another embodiment, the first port 111 and the second port 112 of the inhalation branch 11 are respectively provided with a first female head 113 and a first male head 114, and the air inlet 21 and the air outlet 22 of the anesthesia supply device 20 are respectively provided with a second male head 23 and a second female head 24.

[0058] In respiratory support mode, the first male connector 114 in the inspiratory branch 11 is connected to the first female connector 113 so that the first port 111 and the second port 112 of the inspiratory branch 11 are connected.

[0059] In the anesthesia mode, the first female head 113 in the inspiratory branch 11 is connected to the second male head 23 of the anesthesia supply device 20, and the first male head 114 in the inspiratory branch 11 is connected to the second female head 24 of the anesthesia supply device 20, so as to connect the anesthesia supply device 20 to the inspiratory branch 11.

[0060] When the breathing mode is activated, the first male head 114 in the inhalation branch 11 is connected to the second female head 24 to provide an inhalation-assisted airflow to the animal.

[0061] The first female connector 113, the first male connector 114, the second male connector 23, and the second female connector 24 can be tapered connectors that conform to national standards, or they can be designed according to specific circumstances.

[0062] In this embodiment, the connection is made through the pairing relationship between the male and female heads, so the anesthesia dispenser 20 can be detached from the inhalation branch 11.

[0063] Please see Figure 9 , Figure 9 A partial structural block diagram of an animal ventilation device provided in one embodiment.

[0064] like Figure 2 and Figure 9 As shown, in one embodiment, the animal ventilation device 1 further includes a detector 60, which is electrically connected to the controller 30. The detector 60 is disposed at the first port 111 and / or the second port 112 of the inhalation branch 11 to detect the connection status of the first port 111 and / or the second port 112.

[0065] The detector 60 includes at least one of a Hall sensor, a displacement sensor, and an infrared sensor.

[0066] Further, when the first port 111 and the second port 112 of the inspiratory branch 11 are connected, the detector 60 outputs a first signal; when the air inlet 21 of the anesthesia supply device 20 is connected to the first port 111 in the inspiratory branch 11 and the air outlet 22 of the anesthesia supply device 20 is connected to the second port 112 in the inspiratory branch 11, the detector 60 outputs a second signal, the controller 30 receives the first signal and the second signal, and determines the ventilation mode of the animal ventilation device 1 according to the first signal and the second signal, the ventilation mode including respiratory support mode and anesthesia mode.

[0067] In one embodiment, the detector 60 can be located at the first port 111, the second port 112 can be provided with a first contact, and the air inlet 21 of the anesthesia supply device 20 can be provided with a second contact. When the detector 60 detects the first contact, it outputs the first signal. When the controller 30 receives the first signal, it determines that the ventilation mode is the respiratory support mode. When the detector 60 detects the second contact, it outputs the second signal. When the controller 30 receives the second signal, it determines that the ventilation mode is the anesthesia mode.

[0068] In one embodiment, the animal ventilation device 1 further includes an alarm 61. When the ventilation mode determined by the controller 30 differs from the current ventilation mode of the animal ventilation device 1, the alarm 61 issues an alarm to alert the operator. The alarm 61 alerts the operator to prevent safety accidents.

[0069] Please see Figure 10 , Figure 10 A schematic diagram of the airway of an animal ventilation device provided in one embodiment.

[0070] like Figure 2 and Figure 10 As shown, in one embodiment, the air intake branch 11 includes an air source inlet 62 and a filter 63. The filter 63 is disposed between the air source inlet 62 and the air intake drive module 13. The filter 63 is used to filter impurities (such as dust, bacteria, etc.) in the air intake auxiliary airflow leading to the air intake drive module 13.

[0071] Furthermore, the inhalation branch 11 also includes a one-way valve 64, which is used to ensure that the inhalation-assisted airflow can only flow in one direction and cannot flow in the opposite direction. The one-way valve 64 can be disposed between the filter 63 and the inhalation drive module 13, so that the inhalation-assisted airflow entering the one-way valve 64 can only flow to the inhalation drive module 13 and cannot flow back to the filter 63; the one-way valve 64 can also be disposed between the inhalation drive module 13 and the breathing interface 14, so that the inhalation-assisted airflow entering the one-way valve 64 can only flow to the breathing interface 14 and cannot flow back to the inhalation drive module 13.

[0072] In one embodiment, the inhalation branch 11 includes an air storage unit 65, which is disposed at one end of the inhalation branch 11 near the inhalation drive module 13. The air storage unit stores inhalation-assisted airflow to ensure stable air pressure in the breathing circuit.

[0073] Furthermore, when the one-way valve 64 is disposed between the inhalation drive module 13 and the breathing interface 14, the gas storage unit 65 may be disposed between the one-way valve 64 and the breathing interface 14.

[0074] Furthermore, the animal ventilation device 1 also includes a pressure sensor 66, which is electrically connected to the controller 30 and is installed on the inhalation branch 11 to detect the air pressure in the inhalation branch 11. The controller 30 determines whether the air pressure in the inhalation branch 11 is within a preset air pressure range based on the air pressure detected by the pressure sensor 66, and adjusts the air pressure when the air pressure in the inhalation branch 11 is not within the preset air pressure range.

[0075] Specifically, the air pressure sensor 66 includes an air source pressure sensor 661, which is disposed between the air storage unit 65 and the breathing interface 14.

[0076] The controller 30 determines whether the air pressure in the intake branch 11 is within a preset air pressure range based on the air pressure detected by the air source pressure sensor 661, and adjusts the air pressure when the air pressure in the intake branch 11 is not within the preset air pressure range. This includes: when the air pressure detected by the air source pressure sensor 661 is less than a first preset air pressure, the controller 30 controls the intake drive module 13 to increase the intake auxiliary airflow output pressure and / or intake auxiliary airflow output flow rate; when the air pressure detected by the air source pressure sensor 661 is greater than a second preset air pressure, the controller 30 controls the intake drive module 13 to decrease the intake auxiliary airflow output pressure and / or intake auxiliary airflow output flow rate; and when the air pressure detected by the air source pressure sensor 661 is between the first preset pressure and the second preset pressure, the current intake auxiliary airflow output pressure and intake auxiliary airflow output flow rate of the intake drive module 13 are not changed.

[0077] Furthermore, the inspiratory branch 11 also includes an inspiratory valve 67; wherein the inspiratory valve 67 is located between the gas source pressure sensor 661 and the breathing interface 14, and the inspiratory valve 67 is open when the patient is inspiring and closed when the patient is exhaling. The inspiratory valve 67 may be, but is not limited to, a proportional valve.

[0078] Furthermore, the inhalation branch 11 also includes: a flow sensor 68, which is connected to the controller 30; the air pressure sensor 66 further includes an airway pressure sensor 662; the flow sensor 68 and the airway pressure sensor 662 are disposed between the inhalation valve 67 and the breathing interface 14; the flow sensor 68 is used to detect the flow rate of the inhalation assist airflow entering from the inhalation valve 67; the airway pressure sensor 662 is used to detect the pressure of the inhalation assist airflow entering from the inhalation valve 67; and the controller 30 is used to adjust the opening of the inhalation valve 67 according to the flow rate of the inhalation assist airflow entering from the inhalation valve 67 detected by the flow sensor 68 and the pressure of the inhalation assist airflow entering from the inhalation valve 67 detected by the airway pressure sensor 662. Specifically, when the flow rate of the inhalation assist airflow entering from the inhalation valve 67 is less than a first preset flow rate value, and / or the pressure of the inhalation assist airflow entering from the inhalation valve 67 is less than a first preset airway pressure value, the opening of the inhalation valve 67 is increased; when the flow rate of the inhalation assist airflow entering from the inhalation valve 67 is greater than a second preset flow rate value, and / or the pressure of the inhalation assist airflow entering from the inhalation valve 67 is greater than a second preset airway pressure value, the opening of the inhalation valve 67 is decreased; when the flow rate of the inhalation assist airflow entering from the inhalation valve 67 is between the first preset flow rate value and the second preset flow rate value, and the pressure of the inhalation assist airflow entering from the inhalation valve 67 is between the first preset airway pressure value and the second preset airway pressure value, the opening of the inhalation valve 67 is not changed.

[0079] Furthermore, the exhalation branch 12 includes an exhalation valve 69; when the animal exhales, the exhalation valve 69 opens, and the animal expels the exhaled gas through the breathing port 14. When the animal inhales, the exhalation valve 69 closes.

[0080] Furthermore, the expiratory branch 12 includes a PEEP (positive end-expiratory pressure) valve 70 and a PEEP pressure sensor 71. The PEEP pressure sensor 71 is connected to the controller 30, and is used to detect PEEP pressure. The controller 30 is used to adjust the opening degree of the PEEP valve 70 based on the PEEP pressure detected by the PEEP pressure sensor 71.

[0081] The inspiratory assist airflow flows out of the gas storage unit 65, part of which flows along the inspiratory branch 11 to the patient, and the other part flows to the PEEP valve 70 to generate a preset PEEP pressure.

[0082] In this embodiment, since emptying the inspiratory airflow from the body during exhalation can damage the lungs, lung damage can be avoided by setting a PEEP (positive end-expiratory pressure) valve 70 and a PEEP pressure sensor 71 to maintain a certain positive end-expiratory pressure during exhalation.

[0083] Furthermore, the expiratory branch 12 includes an air resistance tube 72, which is used to regulate the inspiratory auxiliary airflow rate from the gas storage unit 65 to the PEEP valve 70.

[0084] Furthermore, the animal ventilation device 1 also includes an environmental parameter sensor (not shown); the controller 30 is electrically connected to the environmental parameter sensor, which is used to detect at least one of the temperature, humidity, and atmospheric pressure of the environment in which the animal ventilation device 1 is located and feeds it back to the controller 30; the controller 30 is used to compare at least one of the temperature, humidity, and atmospheric pressure of the environment in which the animal ventilation device 1 is located with a standard temperature value, a standard humidity value, and a standard atmospheric pressure to obtain a comparison result, and adjust the parameters of the animal ventilation device 1 accordingly based on the comparison result.

[0085] The parameters include tidal volume, inspiratory-expiratory frequency, and inspiratory-expiratory ratio.

[0086] The environmental parameter sensor can be an integrated sensor that can detect both the temperature and humidity of the environment, as well as the atmospheric pressure. The environmental parameter sensor consists of a separate temperature sensor, a humidity sensor, and a pressure sensor. Correspondingly, the temperature sensor detects the temperature of the environment, the humidity sensor detects the humidity of the environment, and the pressure sensor detects the atmospheric pressure of the environment.

[0087] When the animal ventilation device is needed, respiratory-related parameters must first be set, including tidal volume, inspiratory-expiratory rate, and inspiratory-expiratory ratio. The ventilation mode of the animal ventilation device 1 can be set. Alternatively, when the anesthesia supply device 20 is detected connected to the inspiratory branch, the controller 30 controls the ventilation mode of the animal ventilation device 1 to anesthesia mode; when the anesthesia supply device 20 is not detected connected to the inspiratory branch, the controller 30 controls the ventilation mode of the animal ventilation device 1 to respiratory support mode. After setting the respiratory-related parameters, the controller 30 controls the inspiratory drive module 13 to start outputting inspiratory assist airflow for ventilation. Based on the pressure value detected by the gas source pressure sensor 661, the working power of the inspiratory drive module 13 is adjusted to achieve the inspiratory assist airflow output pressure and inspiratory assist airflow output flow rate. Then, the environmental parameter sensors are used to adjust parameters such as tidal volume, inspiratory-expiratory frequency, and inspiratory-expiratory ratio. The opening of the inspiratory valve 67 is adjusted according to the detection results of the flow sensor 68 and / or airway pressure sensor 662, and the opening of the PEEP valve 70 is adjusted according to the detection parameters of the PEEP pressure sensor 71.

[0088] The above are the implementation methods of the embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the embodiments of this application, and these improvements and modifications are also considered to be within the protection scope of this application.

Claims

1. An animal ventilation device, characterized in that, include: The system includes a breathing circuit, an anesthesia supply unit, a controller, and a control receiver. The control receiver is connected to the controller and outputs the received ventilation modes and / or ventilation parameters to the controller. The ventilation modes include a respiratory support mode and an anesthesia mode. The breathing circuit includes an inspiratory branch, an expiratory branch, an inspiratory drive module, and a breathing interface. One end of the inspiratory branch is connected to the inspiratory drive module, and the other end of the inspiratory branch is connected to the breathing interface. The expiratory branch is connected to the breathing interface and discharges the exhaled gas received by the breathing interface. The inspiratory branch has a first port and a second port. The anesthesia supply unit includes an inlet port and an outlet port. In the breathing support mode, the first port and the second port of the inspiratory branch are connected, and the inspiratory drive module outputs inspiratory auxiliary airflow through the inspiratory branch and the breathing interface under the control of the controller; In the anesthesia mode, the air inlet of the anesthesia dispenser is connected to the first port of the inspiratory branch, the air outlet of the anesthesia dispenser is connected to the second port of the inspiratory branch, and the controller controls the inspiratory drive module and the anesthesia dispenser to output an inspiratory auxiliary airflow containing anesthetic through the inspiratory branch and the breathing interface. The intake branch is also provided with an airway switching device. The airway switching device includes a housing and a movable part disposed in the housing. The movable part is provided with an air passage. The housing has a first through hole and a second through hole respectively opened on the two side walls near the two ends of the air passage. The first through hole is connected to the first port of the intake branch, and the second through hole is connected to the second port of the intake branch. The airway switching device also includes an elastic element, one end of which is fixedly connected to the bottom of the housing, and the other end of which is fixedly connected to the movable element and supports the movable element. In anesthesia mode, the anesthesia supply device is placed on top of the movable part, the elastic element is compressed so that the ventilation channel in the movable part is in a second position, the air inlet of the anesthesia supply device is connected to the first through hole, and the air outlet of the anesthesia supply device is connected to the second through hole. In respiratory support mode, the anesthesia dispenser is no longer placed on top of the movable part, and the elastic element elastically recovers to push the movable part to move the ventilation channel to the first position, with its two ends connected to the first through hole and the second through hole respectively, so that the first port and the second port of the inspiratory branch are connected. The animal ventilation device is a ventilation device used for small animals.

2. The animal ventilation device according to claim 1, characterized in that, The airway switching device also includes a driving component, which is electrically connected to the controller. When switching to respiratory support mode, the controller controls the actuator to move the ventilation channel to the first position; When switching to anesthesia mode, the controller controls the drive unit to move the ventilation channel to the second position.

3. The animal ventilation device according to claim 2, characterized in that, The driving component includes a body and a driving rod. The body is connected to the housing of the airway switching device, and the driving rod is connected to the movable component. The body is connected to the driving rod, and the body provides driving force to the driving rod. When switching to respiratory support mode, the controller controls the drive lever to move the ventilation channel in the movable part to the first position; When switching to anesthesia mode, the controller controls the drive rod to move the ventilation channel in the movable part to the second position.

4. The animal ventilation device according to claim 1, characterized in that, The first and second ports of the inhalation branch are respectively provided with a first female head and a first male head, and the air inlet and outlet ports of the anesthesia supply device are respectively provided with a second male head and a second female head; In respiratory support mode, the first male connector in the inspiratory branch is connected to the first female connector so that the first port and the second port of the inspiratory branch are connected. In anesthesia mode, the first female connector in the inspiratory branch is connected to the second male connector of the anesthesia dispenser, and the first male connector in the inspiratory branch is connected to the second female connector of the anesthesia dispenser, so as to connect the anesthesia dispenser to the inspiratory branch.

5. The animal ventilation device according to any one of claims 1-4, characterized in that, The animal ventilation device further includes a detector, which is electrically connected to the controller. The detector is located at the first port and / or the second port of the inhalation branch to detect the connection status of the first port and / or the second port.

6. The animal ventilation device according to claim 5, characterized in that, The detector includes at least one of a Hall sensor, a displacement sensor, and an infrared sensor.

7. The animal ventilation device according to claim 5, characterized in that, When the first port and the second port of the inspiratory branch are connected, the detector outputs a first signal; when the air inlet of the anesthesia dispenser is connected to the first port in the inspiratory branch and the air outlet of the anesthesia dispenser is connected to the second port in the inspiratory branch, the detector outputs a second signal. The controller receives the first signal and the second signal, and determines the ventilation mode of the animal ventilation device based on the first signal and the second signal. The ventilation mode includes a respiratory support mode and an anesthesia mode.

8. The animal ventilation device according to claim 7, characterized in that, The animal ventilation device also includes an alarm that sounds when the ventilation mode determined by the controller is different from the current ventilation mode of the animal ventilation device.

9. The animal ventilation device according to claim 1, characterized in that, The inhalation branch includes an air storage unit, which is located at one end of the inhalation branch near the inhalation drive module. The air storage unit stores inhalation-assisted airflow to ensure stable air pressure in the breathing circuit.

10. The animal ventilation device according to claim 1, characterized in that, The animal ventilation device also includes a pressure sensor, which is electrically connected to the controller and is installed on the inhalation branch to detect the air pressure in the inhalation branch. The controller determines whether the air pressure in the inhalation branch is within a preset air pressure range based on the air pressure detected by the pressure sensor, and adjusts the air pressure when the air pressure in the inhalation branch is not within the preset air pressure range.

11. The animal ventilation device according to claim 1, characterized in that, The animal ventilation device also includes an environmental parameter sensor, which is electrically connected to the controller to detect at least one of the temperature, humidity, and atmospheric pressure of the environment in which the animal ventilation device is located and feed it back to the controller. The controller compares at least one of the temperature, humidity, and atmospheric pressure of the environment in which the animal ventilation device is located with standard temperature values, standard humidity values, and standard atmospheric pressure to obtain a comparison result, and adjusts the parameters of the animal ventilation device accordingly based on the comparison result.

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