Pressure monitoring module for medical ventilation equipment and medical ventilation equipment

Abstract

The embodiment of the invention provides a pressure monitoring module used in medical ventilation equipment and the medical ventilation equipment, and the pressure monitoring module comprises a base, an air capacitor and a pressure difference zero calibration valve; the base is provided with a pressure difference sampling interface and a pressure difference sensing interface, at least one channel is formed in the base, and the channel at least comprises a pressure difference monitoring channel communicated with the pressure difference sampling interface and the pressure difference sensing interface; the air capacitor is arranged on the base, the air capacitor is provided with a first air capacitor air outlet connector and an air capacitor air inlet connector, part of the structure of the air capacitor and the base are arranged in a spaced mode, so that a containing space is formed in the spaced position, and the first air capacitor air outlet connector communicates with the pressure difference monitoring channel; the differential pressure zero calibration valve is arranged on the base and communicates with the differential pressure monitoring channel, and at least part of the structure of the differential pressure zero calibration valve is located in the containing space. The pressure monitoring module is compact in overall structure, small in occupied space and capable of meeting the requirement for miniaturization of medical ventilation equipment.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a pressure monitoring module used in a medical ventilation device and the medical ventilation device. Background Art

[0002] The differential pressure flow sensor has the characteristics of high reliability and low cost, and is widely used in ventilators to monitor the patient's inhaled and exhaled tidal volume. The differential pressure flow sensor consists of a differential pressure sensor and a differential pressure generator. The differential pressure generator has a pressure sampling point at the upstream and downstream, which is connected to the two monitoring points of the differential pressure sensor through a sampling channel composed of a hose.

[0003] The differential pressure flow sensor is mainly used near the patient end or on the exhalation channel. Therefore, the gas exhaled by the patient will enter the sampling channel of the differential pressure flow sensor. Because the exhaled gas contains a large amount of water vapor, it will condense to form condensed water after contacting the inner wall of the sampling channel. The condensed water will adhere to the sampling channel and affect the measurement accuracy of the differential pressure flow sensor.

[0004] In the related art, one way to remove condensed water is to set an air container on the air path, and flow air into the sampling channel through the air container to blow away the condensed water. However, this method requires the installation of air containers, zeroing valves, air paths and other structures in the ventilator. These structures occupy a large space, which is not conducive to the miniaturization of the ventilator. Summary of the invention

[0005] In view of this, the embodiments of the present application are intended to provide a compact pressure monitoring module for use in medical ventilation equipment and medical ventilation equipment.

[0006] To achieve the above objectives, the first embodiment of the present application provides a pressure monitoring module for a medical ventilation device, comprising:

[0007] A base, wherein the base is provided with a differential pressure sampling interface and a differential pressure sensing interface, and at least one channel is formed on the base, wherein the channel at least includes a differential pressure monitoring channel connected to the differential pressure sampling interface and the differential pressure sensing interface;

[0008] An air container is arranged on the base, the air container has a first air container outlet interface and an air container inlet interface, a part of the structure of the air container is arranged at a distance from the base so that a containing space is formed at the distance, and the first air container outlet interface is communicated with the pressure difference monitoring channel;

[0009] A differential pressure zeroing valve is arranged on the base, the differential pressure zeroing valve is communicated with the differential pressure monitoring channel, and at least a part of the structure of the differential pressure zeroing valve is located in the accommodating space.

[0010] The second embodiment of the present application provides a pressure monitoring module for use in a medical ventilation device, comprising:

[0011] A base, wherein the base is provided with a first sampling interface, a second sampling interface, a proximal sampling interface, a pressure difference sensing interface, and a proximal sensing interface, and at least two channels are formed on the base, wherein at least two of the channels include a pressure difference monitoring channel and a proximal monitoring channel, the first sampling interface, the second sampling interface, and the pressure difference sensing interface are respectively connected to the pressure difference monitoring channel, and the proximal sampling interface and the proximal sensing interface are respectively connected to the proximal monitoring channel;

[0012] An air container is arranged on the base, the air container has a first air container outlet interface, a second air container outlet interface and an air container inlet interface, a part of the structure of the air container is arranged at a distance from the base so that a containing space is formed at the distance, the first air container outlet interface is communicated with the monitoring channel, and the second air container outlet interface is communicated with the proximal monitoring channel;

[0013] A pressure differential zeroing valve is arranged on the base, and the pressure differential zeroing valve is communicated with the pressure differential monitoring channel;

[0014] A proximal zero calibration valve disposed on the base, the proximal zero calibration valve being in communication with the proximal monitoring channel;

[0015] Wherein, at least a part of the structure of the pressure difference zeroing valve and / or at least a part of the structure of the proximal zeroing valve is located in the accommodating space.

[0016] A third embodiment of the present application provides a pressure monitoring module for use in a medical ventilation device, comprising:

[0017] a base, wherein at least one channel is formed on the base;

[0018] An air container is arranged on the base, the air container has a first air container outlet interface and an air container inlet interface, a part of the structure of the air container is arranged at a distance from the base so that a containing space is formed at the distance, and the first air container outlet interface is communicated with the corresponding channel;

[0019] At least one control valve is disposed on the base, the control valve is communicated with the corresponding channel, and at least a partial structure of at least one of all the control valves is located in the accommodating space.

[0020] A fourth embodiment of the present application provides a pressure monitoring module for use in a medical ventilation device, comprising:

[0021] A base, wherein the base is provided with a differential pressure sampling interface and a differential pressure sensing interface, and at least one channel is formed on the base, wherein the channel at least includes a differential pressure monitoring channel connected to the differential pressure sampling interface and the differential pressure sensing interface;

[0022] An air container is arranged on the base, the air container has a first air container outlet interface and an air container inlet interface, the first air container outlet interface is communicated with the pressure difference monitoring channel, and the volume of the air container is greater than or equal to 7 ml and less than or equal to 16 ml;

[0023] A sensor assembly includes a circuit board and a differential pressure sensor having a differential pressure input port, wherein the differential pressure sensor is electrically connected to the circuit board, and the differential pressure input port is connected to the differential pressure monitoring channel through the differential pressure sensing interface.

[0024] A fifth embodiment of the present application provides a medical ventilation device, comprising:

[0025] Air intake;

[0026] Oxygen supply assembly, used for connecting to an oxygen supply device;

[0027] a gas transfer assembly in communication with the oxygen supply assembly and in communication with the air inlet;

[0028] The gas output component is in communication with the gas transmission component and is used to output the gas formed by mixing air and oxygen through the gas transmission component;

[0029] The pressure monitoring module is in communication with the gas output assembly to monitor relevant parameters of the gas delivered by the gas delivery assembly;

[0030] Wherein, the pressure monitoring module is the pressure monitoring module described in the above aspects.

[0031] A sixth embodiment of the present application provides a medical ventilation device, comprising:

[0032] Air intake;

[0033] Oxygen supply assembly, used for connecting to an oxygen supply device;

[0034] a gas transfer assembly in communication with the oxygen supply assembly and in communication with the air inlet;

[0035] The gas output component is in communication with the gas transmission component and is used to output the gas formed by mixing air and oxygen through the gas transmission component;

[0036] The pressure monitoring module is in communication with the gas output assembly to monitor relevant parameters of the gas delivered by the gas delivery assembly;

[0037] External pipes;

[0038] A pressure differential generator, the pressure differential generator having a first interface and a second interface;

[0039] Wherein, the pressure monitoring module includes a base, the base is provided with a first sampling interface, a second sampling interface, a proximal sampling interface, a pressure difference sensing interface, and a proximal sensing interface, and at least two channels are formed on the base; the at least two channels include a pressure difference monitoring channel and a proximal monitoring channel;

[0040] The first sampling interface, the second sampling interface and the pressure difference sensing interface are respectively connected to the pressure difference monitoring channel, and the proximal sampling interface and the proximal sensing interface are respectively connected to the proximal monitoring channel;

[0041] The first sampling interface is connected to the first interface of the pressure difference generator through the external pipeline, the second sampling interface is connected to the second interface of the pressure difference generator through the external pipeline, and the proximal sampling interface is selectively connected to the first interface, the second interface and one of the exhalation valve through the external pipeline.

[0042] The embodiment of the present application provides a pressure monitoring module and medical ventilation equipment for use in medical ventilation equipment. The pressure monitoring module is provided with a base having a pressure differential sampling interface, a pressure differential sensing interface and a pressure differential monitoring channel. The gas volume and the pressure differential zeroing valve are both provided on the base, wherein a part of the structure of the gas volume is spaced apart from the base so that a receiving space is formed at the space, and at least a part of the structure of the pressure differential zeroing valve is located in the receiving space. By providing the base, the gas volume and the pressure differential zeroing valve can be integrated on the base. At the same time, since at least a part of the structure of the pressure differential zeroing valve is located in the receiving space formed between the gas volume and the base, the installation space on the base can be saved, so that the layout of the gas volume and the pressure differential zeroing valve is more compact, thereby making the overall structure of the pressure monitoring module compact. The pressure monitoring module occupies a small space and can meet the demand for miniaturization of medical ventilation equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a schematic diagram of the structure of a pressure monitoring module according to an embodiment of the present application;

[0044] Figure 2 for Figure 1 The structural diagram of the pressure monitoring module shown in another perspective;

[0045] Figure 3 for Figure 1 A first exploded view of the pressure monitoring module is shown;

[0046] Figure 4 for Figure 1A second exploded view of the pressure monitoring module is shown;

[0047] Figure 5 for Figure 1 A third exploded view of the pressure monitoring module is shown;

[0048] Figure 6a for Figure 4 The structural schematic diagram of the seat body shown;

[0049] Figure 6b for Figure 6a The seat body shown, the dotted lines in the figure represent the various channels;

[0050] Figure 7 for Figure 6a , Figure 6b A schematic structural diagram of the seat body from another perspective shown;

[0051] Figure 8 for Figure 1 The structural schematic diagram of the gas container shown;

[0052] Fig. 9 for Figure 8 A schematic diagram of the structure of the gas container from another perspective is shown;

[0053] Fig.10 for Figure 2 The schematic diagram of the relative position relationship of the gas volume, the pressure difference zeroing valve and the near-end zeroing valve on the base is shown;

[0054] Fig.11 for Fig.10 Exploded diagram of

[0055] Fig.12 for Figure 1 A schematic diagram of the structure of the sensor assembly shown;

[0056] Fig.13 for Figure 1 The structural schematic diagram of the PEEP valve shown;

[0057] Fig.14 for Figure 1 A schematic diagram of a connection of a pressure monitoring module shown;

[0058] Fig.15 for Figure 1 Another schematic diagram of a connection of the pressure monitoring module shown;

[0059] Fig.16 This is a schematic diagram of the air circuit of a medical ventilation device according to an embodiment of the present application, in which the dotted arrows indicate the direction of airflow during the inhalation phase;

[0060] Fig.17 for Fig.16The schematic diagram of the air circuit of the medical ventilation device shown in the figure, the dotted arrow in the figure indicates the direction of air flow during the exhalation phase;

[0061] Fig.18 This is a schematic diagram of the air circuit of another medical ventilation device according to an embodiment of the present application, in which the dotted arrows indicate the airflow direction during the inhalation phase;

[0062] Fig.19 for Fig.18 The schematic diagram of the air circuit of the medical ventilation equipment shown in the figure, the dotted arrow in the figure indicates the direction of air flow during the exhalation phase.

[0063] Description of Reference Numerals

[0064] Pressure monitoring module 10; accommodating space 10a; base 11; differential pressure monitoring channel 11a1; first sampling channel 11a11; first sub-channel 11a111; second sub-channel 11a112; second sampling channel 11a12; differential pressure sampling interface 11a2; first sampling interface 11a21; second sampling interface 11a22; differential pressure sensing interface 11a3; first sensing interface 11a31; second sensing interface 11a32; purge channel 11b1; gas capacity interface 11b2; purge air inlet interface 11b3; proximal monitoring channel 1 1c1; proximal sampling interface 11c2; proximal sensing interface 11c3; machine-side monitoring channel 11d1; machine-side sampling interface 11d2; machine-side sensing interface 11d3; PEEP channel 11e1; PEEP sampling branch 11e11; PEEP monitoring branch 11e12; PEEP control branch 11e13; intersection 11e14; PEEP sampling interface 11e2; PEEP sensing interface 11e3; exhalation valve pressure control interface 11e4; first surface 11f; second surface 11g; third surface 11h; mounting portion 11i; seat 111; cover 112; sealing pad 113; gas container 12; first gas container outlet interface 12a; gas container inlet interface 12b; second gas container outlet interface 12c; differential pressure zeroing valve 13; sensor assembly 14; circuit board 141; differential pressure sensor 142; differential pressure input port 142a; first input port 142a1; second input port 142a2; proximal pressure sensor 143; proximal input port 143a; machine-side pressure sensor 144; machine-side input port 144a; PEEP pressure sensor 145; PEEP input Port 145a; proximal zeroing valve 15; adapter assembly 16; air resistance 161; air resistance column 1611; sealing sleeve 1612; adapter bracket 162; adapter port 162a; machine-end zeroing valve 17; PEEP valve 18; PEEP air inlet 18a; PEEP first air outlet 18b; spare air outlet 18c; exhaust port 18d; PEEP second air outlet 18e; switch valve 19; external pipeline 20; first connecting pipe 21; second connecting pipe 22; third connecting pipe 23; differential pressure generator 30; exhalation valve 40; gas transfer assembly 50. DETAILED DESCRIPTION

[0065] In the description of the embodiments of the present application, it should be noted that the directions or positional relationships indicated by the terms "first direction", "second direction" and the like are based on the attached Figure 6a The orientation or positional relationship shown, these orientation terms are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply 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 embodiments of the present application.

[0066] An embodiment of the present application provides a medical ventilation device, which mainly generates, controls and regulates the patient's breathing through mechanical ventilation.

[0067] Exemplarily, the medical ventilation device may be a ventilator, anesthesia machine or other medical equipment.

[0068] The embodiments of the present application are described by taking a medical ventilation device as a ventilator as an example.

[0069] See also Figures 1 to 19 The medical ventilation device of the embodiment of the present application comprises a housing and an air inlet, an oxygen supply component for connecting to an oxygen supply device, a gas transmission component 50 connected to the oxygen supply component and connected to the air inlet, and a gas output component. The gas output component is connected to the gas transmission component 50 and is used to output the gas formed by mixing air and oxygen through the gas transmission component.

[0070] The pressure monitoring module 10 is in communication with the gas output assembly 50 to monitor relevant parameters of the gas delivered by the gas delivery assembly 50 .

[0071] The oxygen supply assembly can be used to control the oxygen flow rate of the oxygen supply device. For example, the oxygen supply device includes a proportional valve and a flow sensor and an oxygen input interface connected to the oxygen supply device.

[0072] In an optional embodiment, an external pipeline 20 and a pressure difference generator 30 are also included.

[0073] The medical ventilation device may be provided with an exhalation valve 40 or may not be provided with an exhalation valve 40. For the medical ventilation device not provided with an exhalation valve 40, the exhalation valve 40 may be connected to the air path of the medical ventilation device in an external manner.

[0074] The pressure difference generator 30 is used to monitor the gas flow rate of the patient's breathing and can generate an airflow pressure difference (referred to as pressure difference).

[0075] See also Figures 1 to 6b The pressure monitoring module 10 of an embodiment of the present application includes a base 11, an air container 12 and a differential pressure zeroing valve 13. The base 11 is provided with a differential pressure sampling interface 11a2 and a differential pressure sensing interface 11a3, and at least one channel is formed on the base 11, wherein the channel at least includes a differential pressure monitoring channel 11a1 connected to the differential pressure sampling interface 11a2 and the differential pressure sensing interface 11a3.

[0076] That is to say, the channel is integrated on the base 11 instead of being formed by providing a connecting pipe such as a hose.

[0077] For example, see Figure 3 and Figure 4The base 11 has a first surface 11f, a second surface 11g and a third surface 11h. The first surface 11f and the second surface 11g are back to back and spaced apart. The third surface 11h is located at the interval between the first surface 11f and the second surface 11g. The channel is located in an inner area enclosed by the first surface 11f, the second surface 11g and the third surface 11h, which is equivalent to the first surface 11f, the second surface 11g and the third surface 11h constituting the appearance surface of the base 11, and the channel is not visible from the outside of the base 11.

[0078] The differential pressure sampling interface 11a2 is used to communicate with the differential pressure generator 30 through the external pipeline 20, which is equivalent to the pressure monitoring module 10, the external pipeline 20 and the differential pressure generator 30 being three separable components, and the differential pressure sampling interface 11a2 of the pressure monitoring module 10 and the differential pressure generator 30 are respectively connected to the external pipeline 20.

[0079] The differential pressure sensing interface 11a3 is used to install the differential pressure sensor 142, that is, the differential pressure input port 142a of the differential pressure sensor 142 is connected to the differential pressure monitoring channel 11a1 through the differential pressure sensing interface 11a3. The differential pressure sensor 142 monitors the differential pressure in the differential pressure monitoring channel 11a1 to monitor the differential pressure generated by the differential pressure generator 30.

[0080] Please continue reading Figure 1 The gas container 12 is disposed on the base 11 . Exemplarily, the gas container 12 can be detachably connected to the base 11 .

[0081] The gas container 12 has a first gas container outlet interface 12a and a gas container inlet interface 12b. Part of the structure of the gas container 12 is spaced apart from the base 11 to form a accommodating space 10a at the interval. The first gas container outlet interface 12a is connected to the pressure difference monitoring channel 11a1.

[0082] The gas container air inlet interface 12b is an interface for communicating with the gas transfer component 50. The gas transfer component 50 is used to provide a gas source, that is, the gas from the gas transfer component 50 enters the gas container 12 through the gas container air inlet interface 12b.

[0083] See also Figure 1 , Figure 6a , Figure 6b , Figure 7 , Figures 16 to 19The first air container outlet interface 12a is connected to the pressure difference monitoring channel 11a1, and the gas in the air container 12 enters the pressure difference monitoring channel 11a1, and then flows to the pressure difference generator 30 through the pressure difference sampling interface 11a2 and the external pipeline 20, so as to remove the condensed water in the external pipeline 20 between the pressure difference generator 30 and the pressure difference sampling interface 11a2 by purging the external pipeline 20 between the pressure difference generator 30 and the pressure difference sampling interface 11a2 (because: the gas exhaled by the patient generally contains a certain amount of water vapor, which will flow through the pressure difference generator 30 during the exhalation process, and may adhere to the diaphragm of the pressure difference generator 30 and / or may enter the external pipeline 20 and / or may enter the measuring component, thereby affecting the detection data of the pressure difference sensor 142). Therefore, the embodiment of the present application can better avoid the condensed water from affecting the monitoring accuracy of the pressure difference sensor 142.

[0084] Exemplarily, the gas transfer component 50 may include a blower, for example, the blower may be a turbine blower, and the gas of the gas transfer component 50 enters the gas container 12 through the gas container inlet interface 12b.

[0085] The differential pressure zeroing valve 13 is disposed on the base 11, and illustratively, the differential pressure zeroing valve 13 can also be detachably connected to the base 11. The differential pressure zeroing valve 13 is connected to the differential pressure monitoring channel 11a1, and at least part of the structure of the differential pressure zeroing valve 13 is located in the accommodating space 10a.

[0086] The differential pressure zeroing valve 13 is used to zero the differential pressure sensor 142. For example, during the monitoring process of the differential pressure sensor 142, the differential pressure monitoring channel 11a1 is in a conducting state. When the differential pressure sensor 142 needs to be zeroed, the differential pressure zeroing valve 13 switches to cut off the differential pressure monitoring channel 11a1 and connects the differential pressure input port 142a of the differential pressure sensor 142 to the outside world, thereby achieving zeroing of the differential pressure sensor 142.

[0087] See also Figure 2 , Figure 5 , Fig.10 and Fig.11 At least part of the structure of the differential pressure zeroing valve 13 is located in the accommodation space 10a, which means that only part of the structure of the differential pressure zeroing valve 13 is located in the accommodation space 10a, or the entire differential pressure zeroing valve 13 is located in the accommodation space 10a, which is equivalent to part of the structure of the gas container 12 being located on the side of the differential pressure zeroing valve 13 away from the base 11. This arrangement can save installation space on the base 11, so that the layout of the gas container 12 and the differential pressure zeroing valve 13 is more compact.

[0088] That is to say, the pressure monitoring module 10 of the embodiment of the present application is provided with a base 11 having a pressure differential sampling interface 11a2, a pressure differential sensing interface 11a3 and a pressure differential monitoring channel 11a1, and the gas container 12 and the pressure differential zeroing valve 13 are both arranged on the base 11, wherein a part of the structure of the gas container 12 is arranged at an interval with the base 11, so that a receiving space 10a is formed at the interval, and at least a part of the structure of the pressure differential zeroing valve 13 is located in the receiving space 10a. By providing the base 11, the gas container 12 and the pressure differential zeroing valve 13 can be integrated on the base 11. At the same time, since at least a part of the structure of the pressure differential zeroing valve 13 is located in the receiving space 10a formed between the gas container 12 and the base 11, the installation space on the base 11 can be saved, so that the layout of the gas container 12 and the pressure differential zeroing valve 13 is more compact, thereby making the overall structure of the pressure monitoring module 10 compact. The pressure monitoring module 10 occupies a small space and can meet the demand for miniaturization of medical ventilation equipment.

[0089] In one embodiment, please refer to Figure 1 The gas container 12 can be disposed on the first surface 11f, and the differential pressure sampling interface 11a2 can be disposed on the third surface 11h.

[0090] See also Figure 1 The third surface 11 h is equivalent to the side wall of the base 11 , and the dimension of the third surface 11 h along the setting direction of the first surface 11 f and the second surface 11 g is equivalent to the thickness dimension of the base 11 .

[0091] The gas capacity 12 and the differential pressure sampling interface 11a2 are respectively arranged on the first surface 11f and the third surface 11h, which can facilitate the arrangement of the gas capacity 12 and the differential pressure sampling interface 11a2. At the same time, since the size of the differential pressure sampling interface 11a2 is relatively small, the size of the third surface 11h along the setting direction of the first surface 11f and the second surface 11g can also be made relatively small, which is equivalent to minimizing the thickness of the base 11. As a result, the overall size of the base 11 can be made relatively small, thereby reducing the overall size of the pressure monitoring module 10.

[0092] In one embodiment, please refer to Figure 4 The base 11 may include a base body 111 and a cover plate 112. One side of the base body 111 has a groove 111 that is recessed toward the other side opposite thereto. The cover plate 112 is disposed on the side of the base body 111 where the groove 111 is disposed, so that the groove 111 forms a channel. In other words, the groove 111 may be disposed on the base body 111, and the cover plate 112 closes the groove 111 so that the groove 111 forms a channel.

[0093] Figure 4The seat body 111 shown is an integral structure, and the groove 111 is directly formed on the seat body 111. In another embodiment, the seat body 111 may further include a shell with an opening on one side, and a structure with the groove 111. The structure is arranged in the shell, and the groove 111 is exposed at the opening. The cover plate 112 closes the opening. In other words, the seat body 111 may not be an integral structure. The seat body 111 may be composed of two independent components, the shell and the structure. The groove 111 is formed on the structure. For example, the structure may be made of materials such as silicone. The structure may be directly placed in the shell, or may be fixed in the shell by bonding or the like. The cover plate 112 closes the opening to close the groove 111.

[0094] Also, see Figure 4 The base 11 may also be provided with a sealing gasket 113, which is sandwiched between the base body 111 and the cover plate 112 and blocks the groove 111. The sealing gasket 113 is used to seal the groove 111, thereby improving the sealing effect of the channel.

[0095] In some embodiments, the base 11 may not be provided with the sealing gasket 113 , for example, the cover plate 112 may be directly sealed and connected to the base body 111 .

[0096] In some embodiments, for the base 11 having a shell and a structure on the seat body 111, a channel can also be formed directly on the structure, which is equivalent to a groove 111 formed on the structure that does not cooperate with the cover plate 112. The structure itself can form a channel, and the cover plate 112 is only used to close the opening instead of closing the groove 111 at the same time.

[0097] For further information, see Figure 3 and Figure 4 The gas container 12 may be disposed on a side of the seat body 111 away from the cover plate 112. Figure 3 and Figure 4 The surface of the middle seat body 111 facing away from the cover plate 112 can be regarded as the first surface 11f described in the previous embodiment, the surface of the cover plate 112 facing away from the seat body 111 can be regarded as the second surface 11g described in the previous embodiment, and the side surface of the seat body 111 can be regarded as the third surface 11h described in the previous embodiment. In some embodiments, the surface of the seat body 111 facing away from the cover plate 112 can also be regarded as the second surface 11g described in the previous embodiment, and the surface of the cover plate 112 facing away from the seat body 111 can be regarded as the first surface 11f described in the previous embodiment. Since the side of the seat body 111 facing away from the cover plate 112 has a larger installation surface, it is convenient to install the air container 12.

[0098] In some embodiments, the gas capacitor 12 may also be disposed on the side of the cover plate 112 away from the base body 111 . The side of the cover plate 112 away from the base body 111 also has a larger installation surface, which can facilitate the installation of the gas capacitor 12 .

[0099] In addition, it can be understood that various interfaces that need to be connected to corresponding channels, such as the differential pressure sampling interface 11a2 and the differential pressure sensing interface 11a3, can be arranged on the base 111 or the cover 112 as needed.

[0100] In one embodiment, the gas container 12 may be provided with a gas containing cavity (not shown), and the first gas container gas outlet interface 12a and the gas container gas inlet interface 12b are respectively connected to the gas containing cavity.

[0101] The gas containing chamber is used to store the gas from the gas transmission component 50, that is, the gas can be first stored in the gas containing chamber, and when the pressure difference monitoring channel 11a1 needs to be dehydrated, the gas in the gas containing chamber is passed into the pressure difference monitoring channel 11a1.

[0102] In some embodiments, the gas container 12 may not be provided with a gas containing cavity. For example, the gas container 12 may only be provided with an air flow channel, and the gas entering the gas container 12 enters the pressure difference monitoring channel 11a1 through the air flow channel.

[0103] In one embodiment, please refer to Figure 6a , Figure 6b and Figure 7 The differential pressure monitoring channel 11a1 may include a first sampling channel 11a11 and a second sampling channel 11a12. The number of differential pressure sampling interfaces 11a2 is two. For the convenience of description, the two differential pressure sampling interfaces 11a2 may be respectively referred to as a first sampling interface 11a21 connected to the first sampling channel 11a11 and a second sampling interface 11a22 connected to the second sampling channel 11a12.

[0104] See also Figures 14 to 19 The pressure difference generator 30 has a first interface and a second interface. The first sampling interface 11a21 is connected to the first interface of the pressure difference generator 30 through the external pipeline 20, and the second sampling interface 11a22 is connected to the second interface of the pressure difference generator 30 through the external pipeline 20.

[0105] Figures 16 to 19 The first sampling interface 11a21 is connected to the upstream of the pressure differential generator 30 through the first interface, and the second sampling interface 11a22 is connected to the downstream of the pressure differential generator 30 through the second interface, which is equivalent to the first sampling channel 11a11 being used to monitor the pressure upstream of the airflow, and the second sampling channel 11a12 being used to monitor the pressure downstream of the airflow. Therefore, the pressure difference of the pressure differential generator 30 can be obtained through the pressure differential sensor 142.

[0106] In some embodiments, the first sampling interface 11a21 may be connected to the downstream of the pressure difference generator 30 through the first interface, and the second sampling interface 11a22 may be connected to the upstream of the pressure difference generator 30 through the second interface.

[0107] Please continue reading Fig. 9 The number of the first gas container outlet interfaces 12a is also two, one of the two first gas container outlet interfaces 12a is communicated with the first sampling channel 11a11, and the other of the two first gas container outlet interfaces 12a is communicated with the second sampling channel 11a12.

[0108] The gas container 12 can be connected to the first sampling channel 11a11 and the second sampling channel 11a12 through the adapter component 16. For example, in one embodiment, refer to Figure 5 The adapter assembly 16 may include two air resistors 161 having air resistor channels 161, the cross-sectional size of the air resistor channels 161 being smaller than the cross-sectional size of the first air capacitor outlet interface 12a, one of the two first air capacitor outlet interfaces 12a being connected to the first sampling channel 11a11 through an air resistor 161, and the other of the two first air capacitor outlet interfaces 12a being connected to the second sampling channel 11a12 through another air resistor 161.

[0109] That is to say, by providing the air resistance 161, the size of the first air container outlet port 12a can be made relatively larger to facilitate the installation of the first air container outlet port 12a.

[0110] For example, see Figure 5 The base 11 may be provided with two air resistance 161 interfaces, one of which is communicated with the first sampling channel 11a11, and the other of which is communicated with the second sampling channel 11a12.

[0111] The air block 161 includes an air block column 1611 having an air block 161 channel and a sealing sleeve 1612 sleeved on the outer circumference of the air block column 1611. The opposite ends of the air block column 1611 of each air block 161 are respectively inserted into the corresponding first air container outlet interface 12a and the air block 161 interface, and the opposite ends of the sealing sleeve 1612 are respectively in sealing contact with the air container 12 and the base 11. Figure 5 As shown, the air resistance column 1611 is assembled with the sealing sleeve 1612. Optionally, the air resistance column 1611 can be provided separately from the sealing sleeve 1612, for example, the air resistance column 1611 can be provided in the air container 12 or the air resistance column 1611 can be provided in the interface position corresponding to the base 11.

[0112] In one embodiment, please refer to Figure 6a , Figure 6band Figure 7 For the differential pressure monitoring channel 11a1 having the first sampling channel 11a11 and the second sampling channel 11a12, two differential pressure sensing interfaces 11a3 may be provided on the base 11. For ease of description, the two differential pressure sensing interfaces 11a3 may be referred to as the first sensing interface 11a31 and the second sensing interface 11a32, respectively. The first sensing interface 11a31 is connected to the first sampling channel 11a11, and the second sensing interface 11a32 is connected to the second sampling channel 11a12.

[0113] The first sensing interface 11a31 and the second sensing interface 11a32 are both used to communicate with the differential pressure sensor 142. For example, see Figure 7 and Fig.12 The differential pressure input port 142a of the differential pressure sensor 142 may include a first input port 142a1 and a second input port 142a2. The first input port 142a1 is connected to the first sampling channel 11a11 through the first sensing interface 11a31, and the second input port 142a2 is connected to the second sampling channel 11a12 through the second sensing interface 11a32.

[0114] Please continue reading Figure 6a , Figure 6b , Figure 7 , Figures 16 to 19 The differential pressure zeroing valve 13 can be connected to the first sampling channel 11a11 and the second sampling channel 11a12 respectively. The differential pressure zeroing valve 13 is switched to connect the first sampling channel 11a11; or, the first sampling channel 11a11 is cut off and the passage between the first sensing interface 11a31 and the second sampling channel 11a12 is connected.

[0115] That is, when the differential pressure zeroing valve 13 connects the first sampling channel 11a11, the differential pressure sensor 142 can monitor the first sampling channel 11a11 and the second sampling channel 11a12 respectively.

[0116] When the pressure differential zeroing valve 13 switches to cut off the first sampling channel 11a11, the pressure differential zeroing valve 13 will also connect the passage between the first sensing interface 11a31 and the second sampling channel 11a12, that is, the first sampling channel 11a11 is cut off, but at this time, the first sensing interface 11a31 is also connected to the second sampling channel 11a12, which is equivalent to the pressure differential sensor 142 only monitoring the pressure of the second sampling channel 11a12 at this time, and the pressure differential is 0, thereby achieving zeroing of the pressure differential sensor 142.

[0117] For example, see Figure 6a , Figure 6b , Figures 16 to 19The first sampling channel 11a11 may include a first sub-channel 11a111 and a second sub-channel 11a1121 separated from each other, the first sampling interface 11a21 is connected to the first sub-channel 11a111, and the first sensing interface 11a31 is connected to the second sub-channel 11a1121. The differential pressure zeroing valve 13 has a first working port, a second working port and a third working port, the first working port is connected to the first sub-channel 11a111, the second working port is connected to the second sub-channel 11a1121, and the third working port is connected to the second sampling channel 11a12. The differential pressure zeroing valve 13 is switched so that the second working port is connected to the first working port or the third working port. That is to say, when the second working port is connected to the first working port, the first sampling channel 11a11 is turned on; when the second working port is connected to the third working port, the first sampling channel 11a11 is cut off, and the passage between the second subchannel 11a1121 and the second sampling channel 11a12 is turned on, thereby enabling the first sensing interface 11a31 to be connected to the second sampling channel 11a12.

[0118] In some embodiments, the differential pressure zeroing valve 13 may also connect the first sensing interface 11a31 and the second sensing interface 11a32 to the outside respectively to achieve zeroing of the differential pressure sensor 142 . However, compared with the differential pressure zeroing valve 13 with the first working port, the second working port and the third working port described in the present embodiment, if the differential pressure sensor 142 is zeroed by connecting the first sensing interface 11a31 and the second sensing interface 11a32 to the outside world respectively, the structure of the differential pressure zeroing valve 13 is relatively complex, and the volume of the differential pressure zeroing valve 13 is relatively large, and more installation space is required on the base 11. In some cases, it is even necessary to set a differential pressure zeroing valve 13 on the first sampling channel 11a11 and the second sampling channel 11a12 respectively to zero the differential pressure sensor 142. The two differential pressure zeroing valves 13 will also occupy more installation space on the base 11. That is to say, the differential pressure sensor 142 is zeroed by connecting the first sensing interface 11a31 and the second sensing interface 11a32 to the outside world respectively, which will cause the differential pressure sensor 142 to occupy more space on the base 11, and thus cause the overall size of the pressure monitoring module 10 to be relatively large. The differential pressure zeroing valve 13 with the first working port, the second working port and the third working port described in this embodiment occupies a smaller space on the base 11 , which is more conducive to reducing the overall size of the pressure monitoring module 10 .

[0119] In one embodiment, please refer to Figure 6a , Figure 6b , Figures 16 to 19The channel may also be provided with a purge channel 11b1, the base 11 further includes an air container interface 11b2 and a purge air inlet interface 11b3 communicated with the purge channel 11b1, and the air container air inlet interface 12b is communicated with the purge channel 11b1 through the air container interface 11b2.

[0120] The purge channel 11 b 1 is a channel communicating with the gas delivery assembly 50 , that is, the gas from the gas delivery assembly 50 enters the gas container 12 through the purge channel 11 b 1 .

[0121] In some other embodiments, the purge channel 11 b 1 may not be provided. For example, the gas container inlet interface 12 b may be connected to the gas transfer assembly 50 through an external pipe 20 .

[0122] In one embodiment, please refer to Figures 1 to 3 , Fig.12 The pressure monitoring module 10 may further include a sensor assembly 14 . Exemplarily, the sensor assembly 14 may also be detachably connected to the base 11 .

[0123] The sensor assembly 14 includes a circuit board 141 and a differential pressure sensor 142 having a differential pressure input port 142a. The differential pressure sensor 142 is electrically connected to the circuit board 141. The differential pressure input port 142a is connected to the differential pressure monitoring channel 11a1 through a differential pressure sensing interface 11a3. In other words, the sensor assembly 14 can also be integrated on the base 11 to reduce the space occupied by the sensor assembly 14 being set separately.

[0124] In addition, in various embodiments of the present application, in addition to the use of "the sensor component 14 is detachably connected to the base 11 or the sensor component 14 is integrated on the base", another possible implementation scheme is: the circuit board in the sensor component 14 is set at other positions in the medical ventilation equipment, so that various sensors on the circuit board can be connected to the corresponding channels on the substrate by means of connecting pipes.

[0125] See also Figure 1 The sensor assembly 14 may be disposed on the first surface 11f, and the circuit board 141 extends in a direction away from the first surface 11f.

[0126] For further information, see Figure 1 The base 11 may be provided with a mounting portion 11i on the first surface 11f, and the circuit board 141 may be fastened to the mounting portion 11i by means of fasteners such as screws. That is, the sensor assembly 14 may be supported by providing the mounting portion 11i to improve the reliability of the installation of the sensor assembly 14.

[0127] The pressure monitoring module 10 can connect the pressure difference sensor 142 to the pressure difference sensing interface 11a3 through the adapter assembly 16, for example, see Figure 3The adapter assembly 16 may include an adapter bracket 162 having an adapter interface 162a, and the input port of the measuring component is connected to the pressure difference sensing interface 11a3 through the corresponding adapter interface 162a.

[0128] In other embodiments, the portion of the pressure difference sensor 142 where the pressure difference input port 142a is provided may also be directly inserted into the pressure difference sensing interface 11a3.

[0129] It should be noted that, in some embodiments, the pressure monitoring module 10 may also not have the sensor assembly 14. For example, the pressure monitoring module 10 may only be provided with the base 11, the air container 12 and the pressure differential zeroing valve 13. The pressure differential sensing interface 11a3 on the base 11 is a reserved interface, and the sensor assembly 14 is separately configured. During the assembly process, the operator installs the separately configured sensor assembly 14 on the base 11 by himself.

[0130] In one embodiment, the differential pressure zeroing valve 13, the gas container 12 and the differential pressure sensor 142 can be arranged on the same side of the base 11. Figure 1 and Figure 2 , the differential pressure zeroing valve 13, the gas container 12 and the sensor assembly 14 can be arranged on the same side of the base 11. For the base 11 with the purge channel 11b1, the gas container interface 11b2 can be located on the side of the differential pressure zeroing valve 13 away from the differential pressure sensor, which is equivalent to the differential pressure zeroing valve 13 being located between the sensor assembly 14 and the gas container interface 11b2, and the portion where the gas container 12 is spaced from the base 11 can extend from the side of the differential pressure zeroing valve 13 away from the sensor assembly 14 to the direction close to the sensor assembly 14. This layout can make full use of the space on the base 11, so that the differential pressure zeroing valve 13, the gas container 12 and the sensor assembly 14 can be arranged more compactly.

[0131] In one embodiment, please refer to Figure 6a , Figure 6b , Figure 7 and Fig.12 The channel may also include a proximal monitoring channel 11c1. The base 11 is also provided with a proximal sampling interface 11c2 and a proximal sensing interface 11c3 connected to the proximal monitoring channel 11c1. The gas container 12 also has a second gas container outlet interface 12c connected to the proximal monitoring channel 11c1.

[0132] The proximal sensing interface 11c3 is used to install the proximal pressure sensor 143, that is, the proximal pressure input port 143a of the proximal pressure sensor 143 is connected to the proximal monitoring channel 11c1 through the proximal sensing interface 11c3. The proximal pressure sensor 143 can obtain the pressure value close to the patient end (referred to as the proximal end) by monitoring the pressure in the proximal monitoring channel 11c1.

[0133] For example, see Figure 3 and Fig.12 For the pressure monitoring module 10 having the sensor assembly 14 , a proximal pressure sensor 143 electrically connected to the circuit board 141 may also be provided in the sensor assembly 14 .

[0134] The proximal sampling interface 11c2 can be connected to the first interface or the second interface of the pressure difference generator 30 through the external pipeline 20, for example, see Figures 14 to 19 The proximal sampling interface 11c2 can be connected to the first interface of the pressure difference generator 30 through the external pipeline 20, which is equivalent to the proximal sampling interface 11c2 and the first sampling interface 11a21 being connected to the first interface through the external pipeline 20.

[0135] because Figures 14 to 19 The first sampling interface 11a21 is connected to the upstream of the pressure differential generator 30 through the first interface. Therefore, the proximal sampling interface 11c2 is actually also connected to the upstream of the pressure differential generator 30 through the first interface, which is equivalent to the proximal pressure sensor 143 monitoring the pressure of the proximal end by monitoring the pressure upstream of the airflow in the pressure differential generator 30.

[0136] In some embodiments, the proximal sampling interface 11c2 may also be connected to the second interface of the pressure difference generator 30 through the external pipe 20 , which is equivalent to the proximal sampling interface 11c2 and the second sampling interface 11a22 being connected to the second interface through the external pipe 20 .

[0137] Exemplarily, the pressure difference monitoring channel 11a1 and the proximal monitoring channel 11c1 are separated from each other, and one of the first sampling interface 11a21 and the second sampling interface 11a22, and the proximal sampling interface 11c2 can be respectively connected to the same connecting pipe.

[0138] The connecting pipe is a part of the external pipe 20. According to design requirements, the first sampling interface 11a21 and the proximal sampling interface 11c2 can be connected to the same connecting pipe respectively, or the second sampling interface 11a22 and the proximal sampling interface 11c2 can be connected to the same connecting pipe respectively.

[0139] For example, see Fig.14 , Fig.16 and Fig.17 , Fig.14The external pipe 20 includes a first connecting pipe 21 and a second connecting pipe 22, wherein the first connecting pipe 21 has three pipe openings, the first pipe opening is connected to the first sampling interface 11a21, the second pipe opening is connected to the proximal sampling interface 11c2, and the third pipe opening is connected to the first interface of the pressure difference generator 30, that is, the first sampling interface 11a21 and the proximal sampling interface 11c2 are connected to the first connecting pipe 21 respectively, and the second connecting pipe 22 has two pipe openings, one pipe opening is connected to the second sampling interface 11a22, and the other pipe opening is connected to the second interface of the pressure difference generator 30.

[0140] In some embodiments, when the second sampling interface 11a22 and the proximal sampling interface 11c2 are respectively connected to the same connecting tube, the second connecting tube 22 may have three pipe openings, the first pipe opening is connected to the second sampling interface 11a22, the second pipe opening is connected to the proximal sampling interface 11c2, and the third pipe opening is connected to the second interface of the pressure differential generator 30, while the first connecting tube 21 has two pipe openings, one pipe opening is connected to the first sampling interface 11a21, and the other pipe opening is connected to the first interface of the pressure differential generator 30.

[0141] For example, see Fig.15 , Fig.18 and Fig.19 The proximal sampling interface 11c2 can also be connected to the exhalation valve 40 through the external pipe 20, that is, the proximal pressure sensor 143 can also monitor the proximal pressure by monitoring the pressure at the exhalation valve 40. For example, refer to Fig.15 The external pipe 20 may also have a first connecting pipe 21, a second connecting pipe 22 and a third connecting pipe 23. The first sampling interface 11a21 is connected to the first interface of the pressure difference generator 30 through the first connecting pipe 21, the second sampling interface 11a22 is connected to the second interface of the pressure difference generator 30 through the second connecting pipe 22, and the proximal sampling interface 11c2 is connected to the exhalation valve 40 through the third connecting pipe 23.

[0142] See also Figure 5 The second gas container outlet port 12c can also be connected to the proximal monitoring channel 11c1 through the gas resistor 161.

[0143] Similar to the pressure difference monitoring channel 11a1, the gas exhaled by the patient will also enter the proximal monitoring channel 11c1. Therefore, the gas container 12 can be connected to the proximal monitoring channel 11c1 through the second gas container outlet interface 12c. The gas in the gas container 12 enters the proximal monitoring channel 11c1, and then flows into the external pipeline 20 connected to the proximal sampling interface 11c2 through the proximal sampling interface 11c2. By purging the external pipeline 20 connected to the proximal monitoring channel 11c1, condensed water in the external pipeline 20 connected to the proximal monitoring channel 11c1 can be removed, thereby better preventing condensed water from entering the proximal monitoring channel 11c1.

[0144] For example, for a medical ventilation device in which the first sampling interface 11a21 and the proximal sampling interface 11c2 are both connected to the first interface, or the second sampling interface 11a22 and the proximal sampling interface 11c2 are both connected to the second interface, Fig.14 , Fig.16 and Fig.17 As an example, refer to the pressure monitoring module 10 shown in FIG. Fig.16 During the inhalation phase, a portion of the gas from the gas delivery assembly 50 flows directly to the pressure difference generator 30 and enters the patient's lungs through the pressure difference generator 30, and another portion of the gas from the gas delivery assembly 50 enters the gas volume 12 and is temporarily stored in the gas volume 12. Fig.17 In the exhalation stage, the gas in the gas volume 12 enters the first sampling channel 11a11, the second sampling channel 11a12 and the proximal monitoring channel 11c1 respectively, and then flows to the differential pressure generator 30 through the first connecting pipe 21 and the second connecting pipe 22 (i.e., the external pipe 20 located between the differential pressure generator 30 and the differential pressure sampling interface 11a2), thereby, the first connecting pipe 21 and the second connecting pipe 22 can be purged respectively to remove the condensed water in the first connecting pipe 21 and the second connecting pipe 22. The gas flowing to the differential pressure generator 30 through the first connecting pipe 21 and the second connecting pipe 22 and the gas exhaled by the patient flow to the exhalation valve 40 through the differential pressure generator 30, and are discharged to the external environment through the exhalation valve 40.

[0145] For example, for a medical ventilation device in which the proximal sampling interface 11c2 is connected to the exhalation valve 40, Fig.15 , Fig.18 and Fig.19 As an example, refer to the pressure monitoring module 10 shown in FIG. Fig.18 During the inhalation phase, a portion of the gas from the gas delivery assembly 50 flows directly to the pressure difference generator 30 and enters the patient's lungs through the pressure difference generator 30, and another portion of the gas from the gas delivery assembly 50 enters the gas volume 12 and is temporarily stored in the gas volume 12. Fig.19During the exhalation stage, the gas in the gas volume 12 enters the first sampling channel 11a11, the second sampling channel 11a12 and the proximal monitoring channel 11c1 respectively, and the gas flowing out of the first sampling channel 11a11 and the second sampling channel 11a12 flows to the pressure difference generator 30 through the first connecting pipe 21 and the second connecting pipe 22 (that is, the external pipe 20 located between the pressure difference generator 30 and the pressure difference sampling interface 11a2), and the gas flowing out of the proximal monitoring channel 11c1 flows to the exhalation valve 40 through the third connecting pipe 23. Therefore, the first connecting pipe 21, the second connecting pipe 22 and the third connecting pipe 23 can be purged respectively to remove the condensed water in the first connecting pipe 21, the second connecting pipe 22 and the third connecting pipe 23. The gas flowing to the pressure difference generator 30 through the first connecting tube 21 and the second connecting tube 22 and the gas exhaled by the patient flow to the exhalation valve 40 through the pressure difference generator 30 and are discharged to the external environment through the exhalation valve 40. The gas flowing to the exhalation valve 40 through the third connecting tube 23 is also discharged to the external environment through the exhalation valve 40.

[0146] In one embodiment, please refer to Figure 2 , Figure 5 , Fig.10 and Fig.11 The pressure monitoring module 10 may further include a proximal zeroing valve 15 disposed on the base 11 and connected to the proximal monitoring channel 11c1, and at least a portion of the structure of the proximal zeroing valve 15 is located in the accommodating space 10a.

[0147] The proximal zeroing valve 15 may be detachably connected to the base 11 .

[0148] The proximal zeroing valve 15 is used to zero the proximal pressure sensor 143. Exemplarily, during the monitoring process of the proximal pressure sensor 143, the proximal monitoring channel 11c1 is in a conducting state. When the proximal pressure sensor 143 needs to be zeroed, the proximal zeroing valve 15 switches to cut off the proximal monitoring channel 11c1 and connects the proximal input port 143a of the proximal pressure sensor 143 to the outside world, thereby achieving zeroing of the proximal pressure sensor 143.

[0149] See also Figure 2 , Fig.10 and Fig.11 At least part of the structure of the proximal zero calibration valve 15 is located in the accommodation space 10a, which means that only part of the structure of the proximal zero calibration valve 15 can be located in the accommodation space 10a, or the entire proximal zero calibration valve 15 can be located in the accommodation space 10a, which is equivalent to part of the structure of the gas container 12 being located on the side of the proximal zero calibration valve 15 away from the base 11. This arrangement can further save the installation space on the base 11, so that the layout of the gas container 12, the differential pressure zero calibration valve 13 and the proximal zero calibration valve 15 is more compact.

[0150] For example, see Figure 2 , Figure 5 and Figure 7 For the base 11 with the purge channel 11b1, the gas capacity interface 11b2 can be located on the side of the differential pressure zeroing valve 13 away from the proximal zeroing valve 15, which is equivalent to the differential pressure zeroing valve 13 being located between the gas capacity interface 11b2 and the proximal zeroing valve 15. The portion where the gas capacity 12 is spaced apart from the base 11 can extend from the side of the differential pressure zeroing valve 13 away from the proximal zeroing valve 15 to the position where the proximal zeroing valve 15 is located. In this way, as much as possible of the differential pressure zeroing valve 13 can be located in the accommodating space 10a, so as to further improve the compactness of the layout of the gas capacity 12, the differential pressure zeroing valve 13 and the proximal zeroing valve 15.

[0151] In one embodiment, please refer to Figure 6a , Figure 6b and Figure 7 The channel also includes a machine-end monitoring channel 11d1, and the base 11 is also provided with a machine-end sampling interface 11d2 and a machine-end sensing interface 11d3 which are connected to the machine-end monitoring channel 11d1.

[0152] See also Figures 16 to 19 The machine-side sampling interface 11d2 can be connected to the gas transmission component 50 through the external pipeline 20, that is, the gas supplied by the gas transmission component 50 enters the machine-side monitoring channel 11d1 through the machine-side sampling interface 11d2.

[0153] The machine-side sensing interface 11d3 is used to install the machine-side pressure sensor 144, that is, the machine-side input port 144a of the machine-side pressure sensor 144 is connected to the machine-side monitoring channel 11d1 through the machine-side sensing interface 11d3. The machine-side pressure sensor 144 can obtain the pressure value close to the medical ventilation device end (hereinafter referred to as the machine end) by monitoring the pressure in the machine-side monitoring channel 11d1.

[0154] For example, see Figure 3 and Fig.12 For the pressure monitoring module having the sensor assembly 14 , a machine-end pressure sensor 144 electrically connected to the circuit board 141 may also be provided in the sensor assembly 14 .

[0155] In one embodiment, please refer to Figure 2 and Figure 5 The pressure monitoring module 10 may further include a machine-end zeroing valve 17 disposed on the base 11 and connected to the machine-end monitoring channel 11d1.

[0156] The machine-end zeroing valve 17 can be detachably connected to the base 11 .

[0157] The machine-end zeroing valve 17 is used to zero the machine-end pressure sensor 144. Exemplarily, during the monitoring process of the machine-end pressure sensor 144, the machine-end monitoring channel 11d1 is in a conducting state. When the machine-end pressure sensor 144 needs to be zeroed, the machine-end zeroing valve 17 switches to cut off the machine-end monitoring channel 11d1 and connects the machine-end input port 144a of the machine-end pressure sensor 144 to the outside world, thereby achieving zeroing of the machine-end pressure sensor 144.

[0158] In one embodiment, please refer to Figure 1 , Figure 6a , Figure 6b , Figure 7 and Fig.13 The channel also includes a PEEP channel 11e1. The base 11 is also provided with an exhalation valve pressure control interface 11e4 and a PEEP sensing interface 11e3 which are connected to the PEEP channel 11e1. The pressure monitoring module 10 also includes a PEEP valve 18 having a PEEP air inlet 18a and a PEEP first air outlet 18b. The PEEP valve 18 is provided on the base 11, and the PEEP first air outlet 18b is connected to the PEEP channel 11e1.

[0159] That is to say, the channel is integrated on the base 11 instead of being formed by providing a connecting pipe such as a hose.

[0160] PEEP is the abbreviation of positive end expiratory pressure. When PEEP is applied to medical ventilation equipment, it can maintain a certain positive pressure in the respiratory tract at the end of exhalation (usually positive pressure is only used during inhalation, and the pressure drops to zero during exhalation), avoid early closure of alveoli, expand some alveoli that have lost their ventilation function due to exudation, atelectasis, etc., increase the reduced functional residual capacity, and achieve the purpose of increasing blood oxygen.

[0161] The PEEP valve 18 is used to enable the medical ventilation device to maintain a certain positive pressure in the respiratory tract at the end of exhalation.

[0162] Exemplarily, the PEEP valve 18 may be detachably connected to the base 11 .

[0163] The PEEP air inlet 18a is an interface for communicating with the gas transmission component 50, that is, the gas from the gas transmission component 50 enters the PEEP valve 18 through the PEEP air inlet 18a, and the gas entering the PEEP valve 18 enters the PEEP channel 11e1 through the PEEP first air outlet 18b.

[0164] For example, see Figure 6a , Figure 6b , Figure 7 , Figures 16 to 19A PEEP sampling interface 11e2 communicating with the PEEP channel 11e1 may be provided on the base 11, and the PEEP first air outlet 18b is communicated with the PEEP channel 11e1 through the PEEP sampling interface 11e2.

[0165] The exhalation valve pressure control interface 11 e 4 is used to communicate with the exhalation valve 40 . Exemplarily, the exhalation valve pressure control interface 11 e 4 may be communicated with the exhalation valve 40 through an external pipe 20 .

[0166] The PEEP channel 11e1 is used to cooperate with the PEEP pressure sensor 145 to monitor the pressure of the gas flowing out of the PEEP valve 18, and is used to make the gas flowing out of the PEEP valve 18 flow to the exhalation valve 40 to achieve control of maintaining a certain positive pressure in the respiratory tract at the end of exhalation.

[0167] The PEEP sensing interface 11e3 is used to install the PEEP pressure sensor 145, that is, the PEEP input port 145a of the PEEP pressure sensor 145 is connected to the PEEP channel 11e1 through the PEEP sensing interface 11e3. The PEEP pressure sensor 145 can obtain the pressure value at the PEEP valve 18 by monitoring the pressure in the PEEP channel 11e1.

[0168] For example, see Figure 6a , Figure 6b , the PEEP channel 11e1 may include a PEEP sampling branch 11e11, a PEEP monitoring branch 11e12, and a PEEP control branch 11e13 that are interconnected, the PEEP first air outlet 18b is connected to the PEEP sampling branch 11e11, the PEEP input port 145a of the PEEP pressure sensor 145 is connected to the PEEP monitoring branch 11e12, and the exhalation valve pressure control interface 11e4 is connected to the PEEP control branch 11e13. In other words, the PEEP channel 11e1 may have multiple branches, so that the PEEP valve 18, the sensor assembly 14, and the exhalation valve pressure control interface 11e4 can all be connected to the PEEP channel 11e1.

[0169] For example, see Figure 6a , Figure 6b The PEEP channel 11e1 has an intersection 11e14, and the PEEP sampling branch 11e11, the PEEP monitoring branch 11e12 and the PEEP control branch 11e13 intersect at the intersection 11e14, that is, the PEEP sampling branch 11e11, the PEEP monitoring branch 11e12 and the PEEP control branch 11e13 are connected at the intersection 11e14.

[0170] Please continue reading Figure 1 and7 , the first surface 11f of the base 11 can be provided with a PEEP sampling interface 11e2, a PEEP sensing interface 11e3 and an exhalation valve pressure control interface 11e4, the PEEP first air outlet 18b is connected to the PEEP sampling branch 11e11 through the PEEP sampling interface 11e2, and the PEEP input port 145a is connected to the PEEP monitoring branch 11e12 through the PEEP sensing interface 11e3. In other words, the PEEP sampling interface 11e2, the PEEP sensing interface 11e3 and the exhalation valve pressure control interface 11e4 can be arranged on the same side of the base 11, which is equivalent to the PEEP valve 18 and the sensor assembly 14 being arranged on the same side of the base 11. Compared with being arranged on opposite sides of the base 11, the PEEP valve 18 and the sensor assembly 14 are arranged on the same side of the base 11, which can reduce the overall size of the pressure monitoring module 10, and can also make the layout of the PEEP valve 18, the sensor assembly 14 and the exhalation valve pressure control interface 11e4 on the base 11 more compact.

[0171] Exemplarily, on the base, the exhalation valve pressure control interface 11e4 and the gas volume 12 are located on different sides of the PEEP valve 18.

[0172] In one embodiment, please refer to Figure 6a , Figure 6b The base 11 has a first channel setting area A and a second channel setting area B located on one side of the first channel setting area A. The PEEP channel 11e1 can be set in the first channel setting area A, and the pressure difference monitoring channel 11a1 can be set in the second channel setting area B. That is to say, the PEEP channel 11e1 and the pressure difference monitoring channel 11a1 can be set in two different areas.

[0173] For further information, see Figure 6a , Figure 6b , the proximal monitoring channel 11c1 can also be arranged in the second channel setting area B. That is to say, the differential pressure monitoring channel 11a1 and the proximal monitoring channel 11c1 can be arranged on the same side of the PEEP channel 11e1, and the differential pressure monitoring channel 11a1 and the proximal monitoring channel 11c1 can be centrally arranged in the same area, thereby making full use of the space in the base 11 and making the distribution of the PEEP channel 11e1, the differential pressure monitoring channel 11a1 and the proximal monitoring channel 11c1 more orderly.

[0174] For further information, see Figure 6a , Figure 6b and Figure 7, the differential pressure sampling interface 11a2 and the proximal sampling interface 11c2 are located on the side of the second channel setting area B away from the first channel setting area A. The positions where the differential pressure sampling interface 11a2 and the proximal sampling interface 11c2 are connected to the external pipeline 20 can be as far away as possible from the setting position of the PEEP valve 18, so that the differential pressure sampling interface 11a2 and the proximal sampling interface 11c2 can be connected to the external pipeline 20 respectively.

[0175] Also, see Figure 6a , Figure 6b and Figure 7 The exhalation valve pressure control interface 11e4 can be located on the side of the first channel setting area A away from the second channel setting area B.

[0176] See also Figure 6a , Figure 6b The PEEP sampling interface 11e2 and the PEEP sensing interface 11e3 can be respectively located on two opposite sides of the first surface 11f along the first direction, which is equivalent to that the PEEP valve 18 and the sensor assembly 14 can be arranged on two opposite sides of the first surface 11f along the first direction.

[0177] For further information, see Figure 6a , Figure 6b The exhalation valve pressure control interface 11e4 may be disposed on a side close to the first surface 11f along a second direction, wherein the second direction intersects with the first direction. Figure 6a , Figure 6b The second direction is perpendicular to the first direction. In other embodiments, the second direction and the first direction may be oblique. That is, compared with the location of the PEEP sampling interface 11e2 and the PEEP sensing interface 11e3, the exhalation valve pressure control interface 11e4 may be located on the other side of the first surface 11f.

[0178] By setting up the PEEP sampling branch 11e11, the PEEP monitoring branch 11e12 and the PEEP control branch 11e13 which are interconnected, it is possible to arrange the PEEP sampling interface 11e2, the PEEP sensing interface 11e3 and the exhalation valve pressure control interface 11e4 at different positions of the first surface 11f. Thus, the flexibility of the layout of the PEEP sampling interface 11e2, the PEEP sensing interface 11e3 and the exhalation valve pressure control interface 11e4 can be improved, thereby better meeting the requirement of compact structure of the pressure monitoring module 10.

[0179] In one embodiment, please refer to Figure 6a , Figure 6bThe base 11 has a first channel setting area A and a second channel setting area B located on one side of the first channel setting area A. The PEEP channel 11e1 can be set in the first channel setting area A, and the pressure difference monitoring channel 11a1 can be set in the second channel setting area B. That is to say, the PEEP channel 11e1 and the pressure difference monitoring channel 11a1 can be set in two different areas.

[0180] For further information, see Figure 6a , Figure 6b For the base 11 provided with the proximal monitoring channel 11c1, the proximal monitoring channel 11c1 may also be provided in the second channel setting area B. That is to say, the differential pressure monitoring channel 11a1 and the proximal monitoring channel 11c1 may be provided on the same side of the PEEP channel 11e1, and the differential pressure monitoring channel 11a1 and the proximal monitoring channel 11c1 may be provided in the same area, thereby making full use of the space in the base 11 and making the distribution of the PEEP channel 11e1, the differential pressure monitoring channel 11a1 and the proximal monitoring channel 11c1 more orderly.

[0181] For further information, see Figure 6a , Figure 6b and Figure 7 , the differential pressure sampling interface 11a2 and the proximal sampling interface 11c2 are located on the side of the second channel setting area B away from the first channel setting area A. The positions where the differential pressure sampling interface 11a2 and the proximal sampling interface 11c2 are connected to the external pipeline 20 can be as far away as possible from the setting position of the PEEP valve 18, so that the differential pressure sampling interface 11a2 and the proximal sampling interface 11c2 can be connected to the external pipeline 20 respectively.

[0182] Also, see Figure 6a , Figure 6b and Figure 7 The exhalation valve pressure control interface 11e4 can be located on the side of the first channel setting area A away from the second channel setting area B.

[0183] Figure 7 The exhalation valve pressure control interface 11e4 is disposed on the first surface 11f. In some embodiments, the exhalation valve pressure control interface 11e4 may also be disposed on the second surface 11g or the third surface 11h.

[0184] That is to say, the setting position of the exhalation valve pressure control interface 11e4 can also be as far away as possible from the pressure difference sampling interface 11a2 and the proximal sampling interface 11c2, so that the exhalation valve pressure control interface 11e4 is connected to the exhalation valve 40.

[0185] See also Figure 3 and Fig.12For the pressure monitoring module having the sensor assembly 14 , a PEEP pressure sensor 145 electrically connected to the circuit board 141 may also be provided in the sensor assembly 14 .

[0186] See also Figure 1 and Fig.13 The PEEP valve 18 may be provided with an exhaust port 18d, and the exhaust port 18d may exhaust the gas entering the PEEP valve 18 into the external environment.

[0187] In addition, it should be noted that Figure 1 and Fig.13 The PEEP valve 18 shown is also provided with a spare air outlet 18c, which is also the outlet for the gas entering the PEEP valve 18 to flow out of the PEEP valve 18. Under normal circumstances, the spare air outlet 18c is in a closed state, that is, the spare air outlet 18c is not used. In some cases, according to design requirements, the PEEP first air outlet 18b can also be closed and the spare air outlet 18c can be opened, which is equivalent to the gas flowing out of the spare air outlet 18c. The PEEP pressure sensor 145 can be connected to the spare air outlet 18c through an external pipe 20, etc., to monitor the pressure of the gas flowing out of the spare air outlet 18c.

[0188] In one embodiment, please refer to Figure 1 , Figure 6a , Figure 6b , Figure 7 and Fig.13 For the base 11 provided with the purge channel 11b1, the PEEP valve 18 may also have a PEEP second air outlet 18e, and the PEEP second air outlet 18e is connected to the purge channel 11b1 through the purge air inlet interface 11b3, that is, the gas from the gas transfer component 50 can also enter the purge channel 11b1 through the PEEP air inlet 18a and the PEEP second air outlet 18e, and then enter the gas container 12 through the purge channel 11b1.

[0189] Please continue reading Figure 1 , Figures 16 to 19 The pressure monitoring module 10 further includes a switch valve 19 disposed on the base 11 and connected to the purge channel 11b1. The switch valve 19 is switched to open or close the purge channel 11b1. That is, after the switch valve 19 opens the purge channel 11b1, at least part of the gas entering the PEEP valve 18 from the PEEP air inlet 18a can enter the purge channel 11b1 through the PEEP second air outlet 18e. After the switch valve 19 closes the purge channel 11b1, the gas entering the PEEP valve 18 from the PEEP air inlet 18a cannot enter the purge channel 11b1.

[0190] By connecting the PEEP second air outlet 18e with the purge channel 11b1, that is, the air container 12 and the PEEP valve 18 share the PEEP air inlet 18a, the number of interfaces on the base 11 can be reduced, thereby further saving the installation space of the base 11 and making the layout of the air container 12 and the PEEP valve 18 more compact.

[0191] In one embodiment, please refer to Figure 5 , there is also a third channel setting area C between the first channel setting area A and the second channel setting area B, and the purge channel 11b1 can be set in the third channel setting area C. That is to say, the PEEP channel 11e1 and the pressure difference monitoring channel 11a1 can be roughly located on opposite sides of the purge channel 11b1, so that the distribution of the PEEP channel 11e1, the pressure difference monitoring channel 11a1 and the purge channel 11b1 is more orderly, especially when the gas volume 12 and the PEEP valve 18 share the PEEP air inlet 18a, it can be convenient for the PEEP second air outlet 18e to communicate with the purge channel 11b1 through the purge air inlet interface 11b3.

[0192] In some embodiments, the PEEP valve 18 may not be provided with the PEEP second air outlet 18e. For example, the purge air inlet interface 11b3 may be connected to the gas transfer component 50 through the external pipeline 20, which is equivalent to the gas transfer component 50 being connected to the purge air inlet interface 11b3 and the PEEP air inlet 18a respectively. The PEEP air inlet 18a is only used for the air intake of the PEEP valve 18, and not for the air intake of the gas container 12.

[0193] An embodiment of the present application also provides a pressure monitoring module 10, see Figures 1 to 3 , Fig.10 and Fig.11 The pressure monitoring module 10 includes a base 11, an air container 12, a pressure difference zeroing valve 13 and a proximal zeroing valve 15.

[0194] The base 11 is provided with a first sampling interface 11a21, a second sampling interface 11a22, a proximal sampling interface 11c2, a differential pressure sensing interface 11a3, a proximal sensing interface 11c3 and at least two channels, wherein the at least two channels include a differential pressure monitoring channel 11a1 and a proximal monitoring channel 11c1, the first sampling interface 11a21, the second sampling interface 11a22 and the differential pressure sensing interface 11a3 are respectively connected to the differential pressure monitoring channel 11a1, and the proximal sampling interface 11c2 and the proximal sensing interface 11c3 are respectively connected to the proximal monitoring channel 11c1.

[0195] That is, the base 11 can be used to monitor the pressure difference generated by the pressure difference generator 30 and the pressure at the proximal end.

[0196] The air container 12 has a first air container outlet interface 12a, a second air container outlet interface 12c and an air container inlet interface 12b. The air container 12 is arranged on the base 11. Part of the structure of the air container 12 is spaced apart from the base 11 to form a accommodating space 10a at the interval. The first air container outlet interface 12a is connected to the monitoring channel, and the second air container outlet interface 12c is connected to the proximal monitoring channel 11c1.

[0197] The differential pressure zeroing valve 13 and the proximal end zeroing valve 15 are both arranged on the base 11 . The differential pressure zeroing valve 13 is communicated with the differential pressure monitoring channel 11 a 1 , and the proximal end zeroing valve 15 is communicated with the proximal end monitoring channel 11 c 1 .

[0198] At least part of the structure of the differential pressure zeroing valve 13 and / or at least part of the structure of the proximal zeroing valve 15 are located in the accommodating space 10a, that is, only at least part of the structure of the differential pressure zeroing valve 13 may be located in the accommodating space 10a, and the proximal zeroing valve 15 may not be located in the accommodating space 10a, or only at least part of the structure of the proximal zeroing valve 15 may be located in the accommodating space 10a, and the differential pressure zeroing valve 13 may not be located in the accommodating space 10a, or at least part of the structure of the differential pressure zeroing valve 13 and at least part of the structure of the proximal zeroing valve 15 may both be located in the accommodating space 10a.

[0199] At least part of the structure of the differential pressure zeroing valve 13 and / or at least part of the structure of the proximal zeroing valve 15 is located in the accommodating space 10a, which can also save installation space on the base 11, so that the layout of the gas container 12, the differential pressure zeroing valve 13 and / or the proximal zeroing valve 15 is more compact, thereby making the overall structure of the pressure monitoring module 10 compact.

[0200] An embodiment of the present application also provides a pressure monitoring module 10, see Figures 1 to 3 , Fig.10 and Fig.11 The pressure monitoring module 10 includes a base 11, an air container 12 and a control valve.

[0201] At least one channel is formed on the base 11, and the air container 12 has a first air container air outlet interface 12a and an air container air inlet interface 12b. The air container 12 is arranged on the base 11, and part of the structure of the air container 12 is spaced apart from the base 11 to form a accommodating space 10a at the interval, and the first air container air outlet interface 12a is connected to the corresponding channel.

[0202] At least one control valve is disposed on the base 11 , and the control valve is communicated with the corresponding channel, and at least a partial structure of at least one of all the control valves is located in the accommodating space 10 a .

[0203] The control valve is used to control the channels connected to it. It should be noted that the number of control valves and the number of channels are not required to correspond one to one, that is, according to needs, each channel can be provided with a control valve connected to it, or some channels can have no control valves, but at least one channel has a control valve connected to it.

[0204] At least part of the structure of at least one of all the control valves is located in the accommodating space 10a means that if the pressure monitoring module 10 has only one control valve, at least part of the structure of the control valve is located in the accommodating space 10a; if the pressure monitoring module 10 is provided with multiple control valves, among these control valves, at least part of the structure of only one control valve may be located in the accommodating space 10a, or at least part of the structure of some (more than one) control valves may be located in the accommodating space 10a, or at least part of the structure of all the control valves may be located in the accommodating space 10a.

[0205] For example, see Figures 1 to 3 , Fig.10 and Fig.11 The channel may include a pressure difference monitoring channel 11a1 connected to the first gas container outlet interface 12a, and the control valve may include a pressure difference zeroing valve 13 connected to the pressure difference monitoring channel 11a1. At least part of the structure of the pressure difference zeroing valve 13 may be located in the accommodating space 10a.

[0206] For example, see Figures 1 to 3 , Fig.10 and Fig.11 The channel may include a proximal monitoring channel 11c1, and the control valve may include a proximal zeroing valve 15 connected to the proximal monitoring channel 11c1, and at least part of the structure of the proximal zeroing valve 15 is located in the accommodating space 10a.

[0207] For example, see Figures 1 to 3 , Fig.10 and Fig.11 The channel may include a purge channel 11b1, and the control valve may include a switch valve 19 connected to the purge channel 11b1. In some embodiments, at least a portion of the switch valve 19 may also be located in the accommodating space 10a.

[0208] For example, see Figures 1 to 3 , Fig.10 and Fig.11, the channel may include a machine-end monitoring channel 11d1, and the control valve may include a machine-end zeroing valve 17 connected to the machine-end monitoring channel 11d1. In some embodiments, at least part of the structure of the machine-end zeroing valve 17 may also be located in the accommodation space 10a. It should be noted that when the base 11 is provided with the pressure differential zeroing valve 13, the proximal zeroing valve 15, the switch valve 19 and the machine-end zeroing valve 17 described in the above embodiment, as required, at least part of the structure of one of the control valves among the pressure differential zeroing valve 13, the proximal zeroing valve 15, the switch valve 19 and the machine-end zeroing valve 17 may be located in the accommodation space 10a, or at least part of the structure of at least two of the control valves among the pressure differential zeroing valve 13, the proximal zeroing valve 15, the switch valve 19 and the machine-end zeroing valve 17 may be located in the accommodation space 10a.

[0209] In addition, the volume of the gas container 12 can be greater than or equal to 7 ml and less than or equal to 16 ml.

[0210] This volume range can make the overall structure of the gas container 12 more compact while meeting the purging requirements, and thus the overall structure of the pressure monitoring module 10 more compact.

[0211] Preferably, the volume of the gas container 12 may be greater than or equal to 9 ml and less than or equal to 11 ml.

[0212] An embodiment of the present application also provides a pressure monitoring module 10, which includes a base 11, an air container 12 and a sensor assembly. The base 11 is provided with a pressure differential sampling interface 11a2 and a pressure differential sensing interface 11a3, and at least one channel is formed on the base 11, wherein the channel at least includes a pressure differential monitoring channel 11a1 connected to the pressure differential sampling interface 11a2 and the pressure differential sensing interface 11a3. The air container 12 is arranged on the base 11, and the air container 12 has a first air container outlet interface 12a and an air container inlet interface 12b, and the first air container outlet interface 12a is connected to the pressure differential monitoring channel 11a1. The volume of the air container 12 is greater than or equal to 7ml and less than or equal to 16ml.

[0213] The sensor assembly 14 includes a circuit board 141 and a differential pressure sensor 142 having a differential pressure input port 142a. The differential pressure sensor 142 is electrically connected to the circuit board 141. The differential pressure input port 142a is connected to the differential pressure monitoring channel 11a1 through a differential pressure sensing interface 11a3.

[0214] Compared with the first pressure monitoring module 10 of the present application, the gas container 12 on the pressure monitoring module 10 of the present embodiment does not form a receiving space 10a between the gas container 12 and the base 11, or even if there is a receiving space 10a between the gas container 12 and the base 11, it does not need to be stacked with other components. In other words, except for the base 11, the gas container 12 does not overlap with other components on the pressure monitoring module 10.

[0215] The volume of the gas container 12 is greater than or equal to 7 ml and less than or equal to 16 ml, which can meet the purging requirements while making the overall structure of the gas container 12 more compact. Therefore, the gas container 12 does not overlap with other components and occupies less installation space on the base 11. Therefore, the overall structure of the pressure monitoring module 10 can also be made relatively compact.

[0216] Preferably, the volume of the gas container 12 may be greater than or equal to 9 ml and less than or equal to 11 ml.

[0217] Optionally, the design of the substrate and other channels in the present application can refer to the introduction of the aforementioned embodiments and will not be repeated here.

[0218] An embodiment of the present application also provides a medical ventilation device, see Figures 14 to 19 The base 11 of the pressure monitoring module 10 in the medical ventilation device is provided with a first sampling interface 11a21, a second sampling interface 11a22, a proximal sampling interface 11c2, a pressure difference sensing interface 11a3, a proximal sensing interface 11c3, a pressure difference monitoring channel 11a1 and a pressure monitoring module 10 of the proximal monitoring channel 11c1. The first sampling interface 11a21 is connected to the first interface of the pressure difference generator 30 through the external pipeline 20, the second sampling interface 11a22 is connected to the second interface of the pressure difference generator 30 through the external pipeline 20, and the proximal sampling interface 11c2 is selectively connected to one of the first interface, the second interface and the exhalation valve 40 through the external pipeline 20.

[0219] That is to say, as needed, the proximal sampling interface 11 c 2 can be communicated with the first interface, the second interface, or the exhalation valve 40 .

[0220] When the proximal sampling interface 11c2 needs to be connected to the first interface, the external pipeline 20 can be provided with the first connecting tube 21 with three pipe openings as described in the previous embodiment; when the proximal sampling interface 11c2 needs to be connected to the second interface, the external pipeline 20 can be provided with the second connecting tube 22 with three pipe openings as described in the previous embodiment; when the proximal sampling interface 11c2 needs to be connected to the exhalation valve 40, the external pipeline 20 can be provided with the first connecting tube 21, the second connecting tube 22 and the third connecting tube 23 as described in the previous embodiment.

[0221] For each embodiment of the present application, the oxygen supply device may be an oxygen cylinder or the like; the gas transfer component 50 may be a device for inputting air and oxygen, such as a turbine component; the gas transfer component 50 may mix the input air with oxygen, and the mixed gas is the gas provided to the patient.

[0222] It should be noted that with respect to each embodiment of the present application, interfaces for installing a pressure differential zeroing valve 13, a proximal zeroing valve 15 and a machine-end zeroing valve 17 are provided on the base 11, and the pressure differential zeroing valve 13, the proximal zeroing valve 15 and the machine-end zeroing valve 17 are connected to corresponding channels through corresponding interfaces, and the setting position of each interface can be adjusted according to the setting position of the pressure differential zeroing valve 13, the proximal zeroing valve 15 and the machine-end zeroing valve 17 on the base 11.

[0223] It should be noted that for each embodiment of the present application, taking the first direction as an example:

[0224] (1) M1 is on one side of N along the first direction, which means: N has two sides in the first direction, and M1 is located / set on / on one side;

[0225] (2) M2 and M3 are on opposite sides of N along the first direction, which means: N has two sides in the first direction, M2 is on one side, and M3 is on the other side;

[0226] (3) M4 and M5 are on the same side of N along the first direction, which means: N has two sides in the first direction, M4 is on one side, and M5 is also on this side.

[0227] In the description of the present application, the description with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", or "exemplary" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, 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 a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0228] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. A pressure monitoring module for medical ventilation equipment, characterized in that: include: A base, wherein the base is provided with a differential pressure sampling interface and a differential pressure sensing interface, and at least one channel is formed on the base, wherein the channel at least includes a differential pressure monitoring channel connected to the differential pressure sampling interface and the differential pressure sensing interface; An air container is arranged on the base, the air container has a first air container outlet interface and an air container inlet interface, a part of the structure of the air container is arranged at a distance from the base so that a containing space is formed at the distance, and the first air container outlet interface is communicated with the pressure difference monitoring channel; A differential pressure zeroing valve is arranged on the base, the differential pressure zeroing valve is communicated with the differential pressure monitoring channel, and at least a part of the structure of the differential pressure zeroing valve is located in the accommodating space.

2. The pressure monitoring module according to claim 1, characterized in that: The channel further includes a purge channel, and the base further includes an air container interface and a purge air inlet interface communicated with the purge channel, and the air container air inlet interface is communicated with the purge channel through the air container interface.

3. The pressure monitoring module according to claim 1, characterized in that: The pressure monitoring module also includes a sensor assembly, which includes a circuit board and a differential pressure sensor having a differential pressure input port. The differential pressure sensor is electrically connected to the circuit board, and the differential pressure input port is connected to the differential pressure monitoring channel through the differential pressure sensing interface.

4. The pressure monitoring module according to claim 3, characterized in that: The differential pressure zeroing valve, the gas volume and the differential pressure sensor are arranged on the same side of the base; The channel also includes a purge channel, and the base also includes an air capacity interface and a purge air inlet interface connected to the purge channel, the air capacity interface is located on the side of the pressure difference zeroing valve away from the pressure difference sensor, and the air capacity air inlet interface is connected to the purge channel through the air capacity interface.

5. The pressure monitoring module according to claim 1, characterized in that: The channel also includes a proximal monitoring channel, the base is also provided with a proximal sampling interface and a proximal sensing interface connected to the proximal monitoring channel, and the gas container also has a second gas container outlet interface connected to the proximal monitoring channel.

6. The pressure monitoring module according to claim 5, characterized in that: The pressure monitoring module further includes a proximal zeroing valve disposed on the base and connected to the proximal monitoring channel, and at least a portion of the structure of the proximal zeroing valve is located in the accommodating space.

7. The pressure monitoring module according to claim 5, characterized in that: The pressure monitoring module includes a sensor assembly, which includes a circuit board and a proximal pressure sensor with a proximal input port. The proximal pressure sensor is electrically connected to the circuit board, and the proximal input port is connected to the proximal monitoring channel through the proximal sensing interface.

8. The pressure monitoring module according to claim 6 or 7, characterized in that: The channel also includes a purge channel, and the base also includes an air capacity interface and a purge air inlet interface connected to the purge channel, the air capacity interface is located on the side of the pressure difference zeroing valve away from the proximal zeroing valve, and the air capacity air inlet interface is connected to the purge channel through the air capacity interface.

9. The pressure monitoring module according to claim 1, characterized in that: The base includes a base body and a cover plate. One side of the base body has a groove that is recessed toward the other side opposite to it. The cover plate is arranged on the side of the base body where the groove is arranged, so that the groove forms the channel.

10. The pressure monitoring module according to claim 9, characterized in that: The seat body comprises a shell with an opening at one side, and a structure body with the groove, the structure body is arranged in the shell, the groove is exposed at the opening, and the cover plate closes the opening.

11. The pressure monitoring module according to claim 9 or 10, characterized in that: The base includes a sealing gasket, which is sandwiched between the base body and the cover plate and covers the groove.

12. The pressure monitoring module according to claim 1, characterized in that: The base includes a base body and a cover plate. The base body includes a shell with an opening on one side and a structure with the channel. The structure is arranged in the shell, and the cover plate closes the opening.

13. The pressure monitoring module according to claims 9, 10 and 12, characterized in that: The air container is arranged on a side of the base body away from the cover plate; or, the air container is arranged on a side of the cover plate away from the base body.

14. The pressure monitoring module according to any one of claims 1 to 5, characterized in that: The gas container has a gas containing cavity, and the first gas container gas outlet interface and the gas container gas inlet interface are respectively connected to the gas containing cavity.

15. The pressure monitoring module according to claim 1, characterized in that: The differential pressure monitoring channel includes a first sampling channel and a second sampling channel, the number of the differential pressure sampling interfaces is two, and the two differential pressure sampling interfaces are respectively a first sampling interface connected to the first sampling channel and a second sampling interface connected to the second sampling channel; The number of the first gas container outlet interfaces is two, one of the two first gas container outlet interfaces is communicated with the first sampling channel, and the other of the two first gas container outlet interfaces is communicated with the second sampling channel.

16. The pressure monitoring module according to claim 15, characterized in that: The pressure monitoring module includes two air resistors having air resistance channels, the cross-sectional size of the air resistance channels is smaller than the cross-sectional size of the first air capacitor outlet interface, one of the two first air capacitor outlet interfaces is connected to the first sampling channel through one of the air resistors, and the other of the two first air capacitor outlet interfaces is connected to the second sampling channel through another of the air resistors.

17. The pressure monitoring module according to claim 16, characterized in that: The base has two air resistance interfaces, one of which is communicated with the first sampling channel, and the other of which is communicated with the second sampling channel; The air resistance includes an air resistance column having the air resistance channel and a sealing sleeve sleeved on the outer peripheral side of the air resistance column, the opposite ends of the air resistance column of each air resistance are respectively inserted into the corresponding first air capacity air outlet interface and the air resistance interface, and the opposite ends of the sealing sleeve are respectively in sealing contact with the air capacity and the base.

18. The pressure monitoring module according to any one of claims 1 to 5, characterized in that: The base has a first surface and a second surface which are opposite to each other and spaced apart, the third surface is located at the interval between the first surface and the second surface, the gas container is arranged on the first surface, and the differential pressure sampling interface is arranged on the third surface.

19. The pressure monitoring module according to claim 1, characterized in that: The pressure difference monitoring channel includes a first sampling channel and a second sampling channel, the number of the pressure difference sampling interface and the pressure difference sensing interface are both two, the two pressure difference sampling interfaces are respectively a first sampling interface and a second sampling interface, the two pressure difference sensing interfaces are respectively a first sensing interface and a second sensing interface, the first sampling channel is respectively communicated with the first sampling interface and the first sensing interface, and the second sampling channel is respectively communicated with the second sampling interface and the second sensing interface; The differential pressure zeroing valve is connected to the first sampling channel and the second sampling channel respectively, and the differential pressure zeroing valve is switched to conduct the first sampling channel; Alternatively, the first sampling channel is cut off, and the path between the first sensing interface and the second sampling channel is connected.

20. The pressure monitoring module according to claim 19, characterized in that: The first sampling channel comprises a first sub-channel and a second sub-channel separated from each other, the first sampling interface is in communication with the first sub-channel, and the first sensing interface is in communication with the second sub-channel; The differential pressure zeroing valve has a first working port, a second working port and a third working port. The first working port is connected to the first sub-channel, the second working port is connected to the second sub-channel, and the third working port is connected to the second sampling channel. The differential pressure zeroing valve is switched so that the second working port is connected to the first working port or the third working port.

21. The pressure monitoring module according to claim 19 or 20, characterized in that: The pressure monitoring module also includes a sensor assembly, which includes a circuit board and a differential pressure sensor having a differential pressure input port, the differential pressure input port includes a first input port and a second input port, the differential pressure sensor is electrically connected to the circuit board, the first input port is connected to the first sampling channel through the first sensing interface, and the second input port is connected to the second sampling channel through the second sensing interface.

22. The pressure monitoring module according to claim 4, characterized in that: The pressure monitoring module includes an air resistor having an air resistor channel, the cross-sectional size of the air resistor channel is smaller than the cross-sectional size of the second air container outlet interface, and the second air container outlet interface is connected to the proximal monitoring channel through the air resistor.

23. The pressure monitoring module according to claim 1, characterized in that: The channel also includes a machine-end monitoring channel, and the base is also provided with a machine-end sampling interface and a machine-end sensing interface connected to the machine-end monitoring channel.

24. The pressure monitoring module according to claim 23, characterized in that: The pressure difference monitoring channel includes a sensor component, which includes a circuit board and a machine-end pressure sensor with a machine-end input port. The machine-end pressure sensor is electrically connected to the circuit board, and the machine-end input port is connected to the machine-end monitoring channel through the machine-end sensor interface.

25. The pressure monitoring module according to claim 23 or 24, characterized in that: The pressure monitoring module also includes a machine-end zeroing valve which is arranged on the base and communicated with the machine-end monitoring channel.

26. The pressure monitoring module according to claim 1, characterized in that: The channel also includes a PEEP channel, and the base is also provided with an exhalation valve pressure control interface and a PEEP sensing interface connected to the PEEP channel. The pressure monitoring module also includes the PEEP valve having a PEEP air inlet and a PEEP first air outlet. The PEEP valve is arranged on the base, and the PEEP first air outlet is connected to the PEEP channel.

27. The pressure monitoring module according to claim 26, characterized in that: The channel also includes a purge channel connected to the air container air inlet interface, the base also includes a purge air inlet interface, the PEEP valve also has a PEEP second air outlet, and the PEEP second air outlet is connected to the purge channel through the purge air inlet interface; The pressure monitoring module further includes a switch valve disposed on the base and connected to the purge channel. The switch valve is switched to open or close the purge channel.

28. The pressure monitoring module according to claim 26, characterized in that: The pressure monitoring module includes a sensor assembly, which includes a circuit board and a PEEP pressure sensor having a PEEP input port. The PEEP pressure sensor is electrically connected to the circuit board, and the PEEP input port is connected to the PEEP channel through the PEEP sensing interface.

29. The pressure monitoring module according to claim 26, characterized in that: The base has a first channel setting area and a second channel setting area located on one side of the first channel setting area. The PEEP channel is set in the first channel setting area, and the pressure difference monitoring channel is set in the second channel setting area.

30. The pressure monitoring module according to claim 29, characterized in that: The channel also includes a proximal monitoring channel, and the base is also provided with a proximal sampling interface and a proximal sensing interface connected to the proximal monitoring channel. The gas capacitor also has a second gas capacitor outlet interface connected to the proximal monitoring channel, and the proximal monitoring channel is arranged in the second channel setting area; the pressure difference sampling interface and the proximal sampling interface are located on the side of the second channel setting area away from the first channel setting area.

31. The pressure monitoring module according to claim 29, characterized in that: The channel also includes a purge channel connected to the air container air inlet interface, the base also includes a purge air inlet interface, the PEEP valve also has a PEEP second air outlet, and the PEEP second air outlet is connected to the purge channel through the purge air inlet interface; The base has a third channel arrangement area between the first channel arrangement area and the second channel arrangement area, and the purge channel is arranged in the third channel arrangement area.

32. A pressure monitoring module for medical ventilation equipment, characterized in that: include: A base, wherein the base is provided with a first sampling interface, a second sampling interface, a proximal sampling interface, a pressure difference sensing interface, and a proximal sensing interface, and at least two channels are formed on the base, wherein at least two of the channels include a pressure difference monitoring channel and a proximal monitoring channel, the first sampling interface, the second sampling interface, and the pressure difference sensing interface are respectively connected to the pressure difference monitoring channel, and the proximal sampling interface and the proximal sensing interface are respectively connected to the proximal monitoring channel; An air container is arranged on the base, the air container has a first air container outlet interface, a second air container outlet interface and an air container inlet interface, a part of the structure of the air container is arranged at a distance from the base so that a containing space is formed at the distance, the first air container outlet interface is communicated with the monitoring channel, and the second air container outlet interface is communicated with the proximal monitoring channel; A pressure differential zeroing valve is arranged on the base, and the pressure differential zeroing valve is communicated with the pressure differential monitoring channel; A proximal zero calibration valve disposed on the base, the proximal zero calibration valve being in communication with the proximal monitoring channel; Wherein, at least a part of the structure of the pressure difference zeroing valve and / or at least a part of the structure of the proximal zeroing valve is located in the accommodating space.

33. The pressure monitoring module according to claim 32, characterized in that: At least part of the structure of the differential pressure zeroing valve and at least part of the structure of the proximal zeroing valve are both located in the accommodation space; The channel also includes a purge channel, and the base also includes an air capacity interface and a purge air inlet interface connected to the purge channel, the air capacity interface is located on the side of the pressure difference zeroing valve away from the proximal zeroing valve, and the air capacity air inlet interface is connected to the purge channel through the air capacity interface.

34. The pressure monitoring module according to claim 32, characterized in that: The pressure difference monitoring channel and the proximal monitoring channel are separated from each other, and one of the first sampling interface and the second sampling interface, and the proximal sampling interface are respectively communicated with the same connecting pipe.

35. The pressure monitoring module according to any one of claims 32 to 34, characterized in that: The base includes a base body and a cover plate. One side of the base body has a groove that is recessed toward the other side opposite to it. The cover plate is arranged on the side of the base body where the groove is arranged, so that the groove forms the channel.

36. The pressure monitoring module according to claim 35, characterized in that: The seat body comprises a shell with an opening at one side, and a structure body with the groove, the structure body is arranged in the shell, the groove is exposed at the opening, and the cover plate closes the opening.

37. The pressure monitoring module according to any one of claims 32 to 34, characterized in that: The base includes a base body and a cover plate. The base body includes a shell with an opening on one side and a structure with the channel. The structure is arranged in the shell, and the cover plate closes the opening.

38. The pressure monitoring module according to any one of claims 32 to 34, characterized in that: The pressure difference monitoring channel includes a first sampling channel and a second sampling channel. The first sampling interface is in communication with the first sampling channel, and the second sampling interface is in communication with the second sampling channel.

39. A pressure monitoring module for medical ventilation equipment, characterized in that: include: a base, wherein at least one channel is formed on the base; An air container is arranged on the base, the air container has a first air container outlet interface and an air container inlet interface, a part of the structure of the air container is arranged at a distance from the base so that a containing space is formed at the distance, and the first air container outlet interface is communicated with the corresponding channel; At least one control valve is disposed on the base, the control valve is communicated with the corresponding channel, and at least a partial structure of at least one of all the control valves is located in the accommodating space.

40. The pressure monitoring module according to claim 39, characterized in that: The channel includes a pressure difference monitoring channel connected to the first gas container outlet interface, and the control valve includes the pressure difference zeroing valve connected to the pressure difference monitoring channel, and at least part of the structure of the pressure difference zeroing valve is located in the accommodating space.

41. The pressure monitoring module according to claim 39, characterized in that: The channel includes a purge channel, the base is provided with an air container interface and a purge air inlet interface communicated with the purge channel, and the air container air inlet interface is communicated with the purge channel through the air container interface; The control valve includes a switch valve communicated with the purge passage, and at least a portion of the switch valve is located in the accommodating space.

42. The pressure monitoring module according to claim 39, characterized in that: The channel includes a proximal monitoring channel, the control valve includes a proximal zeroing valve communicated with the proximal monitoring channel, and at least a portion of the structure of the proximal zeroing valve is located in the accommodating space.

43. The pressure monitoring module according to claim 39, characterized in that: The channel includes a machine-end monitoring channel, the control valve includes a machine-end zeroing valve communicated with the machine-end monitoring channel, and at least a portion of the structure of the machine-end zeroing valve is located in the accommodating space.

44. The pressure monitoring module according to claim 39, characterized in that: The volume of the gas container is greater than or equal to 7 ml and less than or equal to 16 ml.

45. The pressure monitoring module according to claim 44, characterized in that: The volume of the gas container is greater than or equal to 9 ml and less than or equal to 11 ml.

46. ​​A pressure monitoring module for medical ventilation equipment, characterized in that: include: A base, wherein the base is provided with a differential pressure sampling interface and a differential pressure sensing interface, and at least one channel is formed on the base, wherein the channel at least includes a differential pressure monitoring channel connected to the differential pressure sampling interface and the differential pressure sensing interface; An air container is arranged on the base, the air container has a first air container outlet interface and an air container inlet interface, the first air container outlet interface is communicated with the pressure difference monitoring channel, and the volume of the air container is greater than or equal to 7 ml and less than or equal to 16 ml; A sensor assembly includes a circuit board and a differential pressure sensor having a differential pressure input port, wherein the differential pressure sensor is electrically connected to the circuit board, and the differential pressure input port is connected to the differential pressure monitoring channel through the differential pressure sensing interface.

47. The pressure monitoring module according to claim 46, characterized in that: The volume of the gas container is greater than or equal to 9 ml and less than or equal to 11 ml.

48. A medical ventilation device, characterized in that: The invention comprises a housing and: Air intake; Oxygen supply assembly, used for connecting to an oxygen supply device; a gas transfer assembly in communication with the oxygen supply assembly and in communication with the air inlet; The gas output component is in communication with the gas transmission component and is used to output the gas formed by mixing air and oxygen through the gas transmission component; The pressure monitoring module is in communication with the gas output assembly to monitor relevant parameters of the gas delivered by the gas delivery assembly; Wherein, the pressure monitoring module is the pressure monitoring module as described in claims 1-47.

49. A medical ventilation device, characterized in that: The invention comprises a housing and: Air intake; Oxygen supply assembly, used for connecting to an oxygen supply device; a gas transfer assembly in communication with the oxygen supply assembly and in communication with the air inlet; The gas output component is in communication with the gas transmission component and is used to output the gas formed by mixing air and oxygen through the gas transmission component; The pressure monitoring module is in communication with the gas output assembly to monitor relevant parameters of the gas delivered by the gas delivery assembly; External pipes; A pressure differential generator, the pressure differential generator having a first interface and a second interface; Wherein, the pressure monitoring module includes a base, the base is provided with a first sampling interface, a second sampling interface, a proximal sampling interface, a pressure difference sensing interface, and a proximal sensing interface, and at least two channels are formed on the base; the at least two channels include a pressure difference monitoring channel and a proximal monitoring channel; The first sampling interface, the second sampling interface and the pressure difference sensing interface are respectively connected to the pressure difference monitoring channel, and the proximal sampling interface and the proximal sensing interface are respectively connected to the proximal monitoring channel; The first sampling interface is connected to the first interface of the pressure difference generator through the external pipeline, the second sampling interface is connected to the second interface of the pressure difference generator through the external pipeline, and the proximal sampling interface is selectively connected to the first interface, the second interface and one of the exhalation valve through the external pipeline.

50. The medical ventilation device of claim 49, wherein: The pressure monitoring module also includes an air container on a base, the air container having a first air container outlet interface, a second air container outlet interface and an air container inlet interface, the first air container outlet interface is connected to the pressure difference monitoring channel, and the second air container outlet interface is connected to the proximal monitoring channel.

51. The medical ventilation device of claim 50, wherein: The pressure monitoring module further comprises a pressure differential zeroing valve and a proximal zeroing valve, wherein the pressure differential zeroing valve is connected to the pressure differential monitoring channel; the proximal zeroing valve is connected to the proximal monitoring channel; Part of the structure of the gas container is spaced apart from the base so that a receiving space is formed at the spacing, and at least part of the structure of the differential pressure zeroing valve and / or at least part of the structure of the proximal zeroing valve is located in the receiving space.

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