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, a PEEP valve and a sensor assembly; the base is provided with a pressure difference sampling interface and an exhalation valve pressure control interface, a channel is formed in the base, and the channel comprises a pressure difference monitoring channel communicated with the pressure difference sampling interface and a PEEP channel communicated with the exhalation valve pressure control interface; the PEEP valve is provided with a PEEP air inlet and a PEEP first air outlet communicated with the PEEP channel; the sensor assembly comprises a circuit board and a measuring part electrically connected with the circuit board, the measuring part comprises a pressure difference sensor and a PEEP pressure sensor, a pressure difference input port of the pressure difference sensor is communicated with the pressure difference monitoring channel, and a PEEP input port of the PEEP pressure sensor is communicated with the PEEP channel. The pressure monitoring module provided by the embodiment of the invention is relatively high in integration level and relatively small in overall size, and production and later maintenance costs can be reduced while a PEEP valve and a sensor assembly are convenient to install.

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 a medical ventilation device. Background Art

[0002] The ventilator in the related technology is generally provided with a pressure monitoring module, which can be used to monitor the proximal pressure, the machine-end pressure and the pressure difference between the two ends of the pressure difference generator. It can also collect data feedback and control the tidal volume and PEEP pressure of the respiratory system's inhalation and exhalation.

[0003] The various components of the pressure monitoring module are usually connected by connecting pipes. Due to the complex connection relationship between the components, the number of connecting pipes is large, the connection relationship between the components is complex, and the integration is low, which is not easy to identify and not conducive to installation. In addition, the processing and subsequent maintenance of a large number of connecting pipes will increase the cost of the pressure monitoring module exponentially. Summary of the invention

[0004] In view of this, the embodiments of the present application hope to provide a pressure monitoring module and medical ventilation equipment with a high degree of integration.

[0005] To achieve the above object, an embodiment of the present application provides a pressure monitoring module for a medical ventilation device, comprising:

[0006] A base, wherein the base is provided with a pressure differential sampling interface and an exhalation valve pressure control interface, and a channel is formed on the base, wherein the channel includes a pressure differential monitoring channel communicated with the pressure differential sampling interface and a PEEP channel communicated with the exhalation valve pressure control interface;

[0007] A PEEP valve is arranged on the base, the PEEP valve has a PEEP air inlet and a PEEP first air outlet, and the PEEP first air outlet is communicated with the PEEP channel;

[0008] A sensor assembly, the sensor assembly comprising a circuit board and a measuring component electrically connected to the circuit board, wherein the measuring component comprises a differential pressure sensor and a PEEP pressure sensor, the differential pressure input port of the differential pressure sensor is connected to the differential pressure monitoring channel, and the PEEP input port of the PEEP pressure sensor is connected to the PEEP channel.

[0009] Another embodiment of the present application provides a pressure monitoring module for use in a medical ventilation device, comprising:

[0010] A base, wherein the base is provided with an exhalation valve pressure control interface, and at least one channel is formed on the base, wherein the channel at least includes a PEEP channel connected to the exhalation valve pressure control interface;

[0011] A PEEP valve is arranged on the base, the PEEP valve has a PEEP air inlet and a PEEP first air outlet, and the PEEP first air outlet is communicated with the PEEP channel;

[0012] A sensor assembly, the sensor assembly comprising a circuit board and at least one measuring component electrically connected to the circuit board, the input port of the measuring component being communicated with the corresponding channel, wherein the measuring component at least comprises a PEEP pressure sensor having a PEEP input port, the PEEP input port being communicated with the PEEP channel.

[0013] Another embodiment of the present application provides a medical ventilation device, comprising:

[0014] Air intake;

[0015] Oxygen supply assembly, used for connecting to an oxygen supply device;

[0016] a gas transfer assembly in communication with the oxygen supply assembly and in communication with the air inlet;

[0017] 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;

[0018] 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;

[0019] Wherein, the pressure monitoring module is the pressure monitoring module mentioned above.

[0020] The embodiment of the present application provides a pressure monitoring module and medical ventilation equipment used in medical ventilation equipment. The pressure monitoring module is provided with a base having a pressure differential sampling interface, an exhalation valve pressure control interface, a pressure differential monitoring channel and a PEEP channel. The PEEP valve is provided on the base, the PEEP first air outlet is connected to the PEEP channel, the pressure differential input port 142a of the pressure differential sensor in the sensor assembly is connected to the pressure differential monitoring channel 11a1, and the PEEP input port of the PEEP pressure sensor is connected to the PEEP channel. In other words, the PEEP valve, the pressure differential sensor and the PEEP pressure sensor are integrated on the base, and the pressure differential monitoring channel and the PEEP channel formed on the base are used to replace the connecting pipe in the related art. The pressure monitoring module has a high degree of integration and a relatively small overall size. While facilitating the installation of the PEEP valve and the sensor assembly, it can also reduce the cost of production and subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of a pressure monitoring module according to an embodiment of the present application;

[0022] Figure 2 for Figure 1 The structural diagram of the pressure monitoring module shown in another perspective;

[0023] Figure 3 for Figure 1 A first exploded view of the pressure monitoring module is shown;

[0024] Figure 4 for Figure 1 A second exploded view of the pressure monitoring module is shown;

[0025] Figure 5 for Figure 1 A third exploded view of the pressure monitoring module is shown;

[0026] Figure 6a for Figure 4 The structural schematic diagram of the seat body shown;

[0027] Figure 6b for Figure 6a The seat body shown, the dotted lines in the figure represent the various channels;

[0028] Figure 7 for Figure 6a , Figure 6b A schematic structural diagram of the seat body from another perspective shown;

[0029] Figure 8 for Figure 1 The structural schematic diagram of the gas container shown;

[0030] Fig. 9 for Figure 8 A schematic diagram of the structure of the gas container from another perspective is shown;

[0031] 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;

[0032] Fig.11 for Fig.10 Exploded diagram of

[0033] Fig.12 for Figure 1 A schematic diagram of the structure of the sensor assembly shown;

[0034] Fig.13 for Figure 1 The structural schematic diagram of the PEEP valve shown;

[0035] Fig.14 for Figure 1 A schematic diagram of a connection of a pressure monitoring module shown;

[0036] Fig.15 for Figure 1 Another schematic diagram of a connection of the pressure monitoring module shown;

[0037] 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;

[0038] Fig.17 for Fig.16 The 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;

[0039] 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;

[0040] 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.

[0041] Description of Reference Numerals

[0042] 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

[0043] 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.

[0044] An embodiment of the present application provides a medical ventilation device, which mainly generates, controls and regulates the patient's breathing through mechanical ventilation.

[0045] Exemplarily, the medical ventilation device may be a ventilator, anesthesia machine or other medical equipment.

[0046] The embodiments of the present application are described by taking a medical ventilation device as a ventilator as an example.

[0047] See also Figures 1 to 19 The medical ventilation device of the embodiment of the present application includes an air inlet; an oxygen supply assembly for connecting an oxygen supply device; a gas transmission assembly 50 connected to the oxygen supply assembly and connected to the air inlet, a gas output assembly, and a pressure monitoring module 10. The pressure monitoring module is connected to the gas output assembly to monitor the relevant parameters of the gas delivered by the gas transmission assembly and to control PEEP.

[0048] 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.

[0049] See also Figures 1 to 3 , Figures 5 to 7 A pressure monitoring module 10 according to an embodiment of the present application includes a base 11, a PEEP valve 18, and a sensor assembly 14. The base 11 is provided with a pressure differential sampling interface 11a2 and an exhalation valve pressure control interface 11e4, and a channel is formed on the base 11, wherein the channel includes a pressure differential monitoring channel 11a1 communicated with the pressure differential sampling interface 11a2 and a PEEP channel 11e1 communicated with the exhalation valve pressure control interface 11e4.

[0050] That is to say, the channel is integrated on the base 11 rather than being formed by providing a connecting pipe such as a hose.

[0051] For example, see Figure 3 and Figure 4 The 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.

[0052] See also Fig.13The PEEP valve 18 has a PEEP air inlet 18a and a PEEP first air outlet 18b. The PEEP valve 18 is disposed on the base 11, and the PEEP first air outlet 18b is communicated with the PEEP channel 11e1.

[0053] 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.

[0054] 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.

[0055] Exemplarily, the PEEP valve 18 may be detachably connected to the base 11 .

[0056] The PEEP gas inlet 18a is in communication with the gas delivery assembly 50, that is, the gas from the gas delivery assembly 50 enters the PEEP valve 18 through the PEEP gas inlet 18a, and the gas entering the PEEP valve 18 enters the PEEP channel 11e1 through the PEEP first gas outlet 18b.

[0057] For example, see Figure 6a , Figure 6b and Figure 7 A 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.

[0058] The pressure difference sampling interface 11a2 is used to communicate with the pressure difference generator 30 of the medical ventilation equipment through the external pipe 20, wherein 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).

[0059] That is, the pressure monitoring module 10 , the external pipe 20 and the pressure difference generator 30 are three separable components, and the pressure difference sampling interface 11 a 2 of the pressure monitoring module 10 and the pressure difference generator 30 are connected to the external pipe 20 respectively.

[0060] 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 .

[0061] The sensor assembly 14 includes a circuit board 141 and a measuring component electrically connected to the circuit board 141, wherein the measuring component includes a differential pressure sensor 142 and a PEEP pressure sensor 145, the differential pressure input port 142a of the differential pressure sensor 142 is connected to the differential pressure monitoring channel 11a1, and the PEEP input port 145a of the PEEP pressure sensor 145 is connected to the PEEP channel 11e1.

[0062] The circuit board 141 may be disposed on the base 11. For example, the circuit board 141 may be detachably connected to the base 11. The circuit board 141 may not be disposed on the base 11.

[0063] 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 .

[0064] For example, see Figure 6a , Figure 6b and Figure 7 A differential pressure sensing interface 11a3 connected to the differential pressure monitoring channel 11a1 may be provided on the base 11, and 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.

[0065] The PEEP pressure sensor 145 is used to monitor the air pressure in the PEEP channel 11 e 1 to obtain the pressure value at the PEEP valve 18 .

[0066] For example, see Figure 6a , Figure 6b and Figure 7 The base 11 may be provided with a PEEP sensing interface 11e3 for installing 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.

[0067] That is, 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, an exhalation valve pressure control interface 11e4, a pressure differential monitoring channel 11a1 and a PEEP channel 11e1, the PEEP valve 18 is provided on the base 11, the PEEP first air outlet 18b is communicated with the PEEP channel 11e1, the pressure differential input port 142a of the pressure differential sensor 142 in the sensor assembly 14 is communicated with the pressure differential monitoring channel 11a1, and the PEEP input port 145a of the PEEP pressure sensor 145 is communicated with the PEEP channel 11e1. That is, the PEEP valve 18, the pressure differential sensor 142 and the PEEP pressure sensor 145 are integrated on the base 11, and the pressure differential monitoring channel 11a1 and the PEEP channel 11e1 formed on the base 11 are used to replace the connecting pipe in the related art. The pressure monitoring module 10 has a high degree of integration and a relatively small overall size. While facilitating the installation of the PEEP valve 18 and the sensor assembly 14, it can also reduce the cost of production and subsequent maintenance.

[0068] In one embodiment, please refer to Figure 4 The base 11 may include a base 111 and a cover 112. One side of the base 111 has a groove that is recessed toward the other side opposite thereto. The cover 112 is disposed on the side of the base 111 where the groove is disposed, so that the groove forms a channel. In other words, the base 111 may be provided with a groove, and the cover 112 may close the groove to form a channel.

[0069] Figure 4 The seat body 111 shown is an integral structure, and the groove 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 a groove, the structure is arranged in the shell, the groove is exposed at the opening, and 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, and the groove 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, and the cover plate 112 closes the opening to close the groove.

[0070] 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. The sealing gasket 113 is used to seal the groove, thereby improving the sealing effect of the channel.

[0071] 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 .

[0072] 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 formed on the structure that does not cooperate with the cover 112. The structure itself can form a channel, and the cover 112 is only used to close the opening instead of closing the groove at the same time.

[0073] For further information, see Figure 3 and Figure 4 The PEEP valve 18 can be arranged on the side of the seat body 111 facing 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 space, it is convenient to install the PEEP valve 18.

[0074] In some embodiments, the PEEP valve 18 may also be disposed on the side of the cover plate 112 away from the seat body 111 . The side of the cover plate 112 away from the seat body 111 also has a larger installation space, which can facilitate the installation of the PEEP valve 18 .

[0075] In addition, it can be understood that various interfaces that need to be connected to corresponding channels, such as the exhalation valve pressure control interface 11e4 and the PEEP sensor interface 11e3, can be set on the seat body 111 or the cover plate 112 as needed.

[0076] In one embodiment, please refer to 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.

[0077] 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.

[0078] In one embodiment, please refer to Figure 1 , Figure 6a , Figure 6b and Figure 7 , the first surface 11f 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 also 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.

[0079] For example, see Figure 6a , Figure 6b and Figure 7 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.

[0080] For further information, see Figure 6a , Figure 6b and Figure 7 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 6bThe 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.

[0081] 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.

[0082] 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.

[0083] In some embodiments, the PEEP sampling interface 11e2, the PEEP sensing interface 11e3 and the exhalation valve pressure control interface 11e4 may also be provided on the second surface 11g.

[0084] In one embodiment, please refer to 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.

[0085] 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.

[0086] In addition, the pressure monitoring module 10 can also be provided with an adapter assembly 16 to connect the measuring component with the corresponding channel, for example, see Figure 3 The 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 corresponding channel through the corresponding adapter interface 162a. The adapter assembly 16 may be integrally formed, and its material may be silicone or the like with sealing properties, and the adapter assembly 16 may enable the measuring component to be better sealed with its corresponding channel.

[0087] In other embodiments, the portion of the measuring component where the input port is provided may also be directly inserted into the corresponding channel.

[0088] In one embodiment, please refer to Figure 1 and Figure 6a , Figure 6b The sensor assembly 14 may be disposed on one side of the first surface 11f along the first direction, and all channels are located on the same side of the circuit board 141 along the first direction.

[0089] In one embodiment, please refer to Figure 6a , Figure 6b 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 and a second sampling interface 11a22. The differential pressure input port 142a of the differential pressure sensor 142 includes a first input port 142a1 and a second input port 142a2. The first sampling channel 11a11 is respectively communicated with the first sampling interface 11a21 and the first input port 142a1, and the second sampling channel 11a12 is respectively communicated with the second sampling interface 11a22 and the second input port 142a2.

[0090] See also Figure 6a , Figure 6b and Fig.12 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 respectively referred to as a first sensing interface 11a31 and a second sensing interface 11a32. The first input port 142a1 of the differential pressure sensor 142 is connected to the first sampling channel 11a11 through the first sensing interface 11a31, and the second input port 142a2 of the differential pressure sensor 142 is connected to the second sampling channel 11a12 through the second sensing interface 11a32.

[0091] 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.

[0092] Figures 14 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.

[0093] 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.

[0094] In one embodiment, please refer to Figure 2 , Figures 16 to 19 The pressure monitoring module 10 may further include a differential pressure zeroing valve 13 disposed on the first sampling channel 11a11 and the second sampling channel 11a12. The differential pressure zeroing valve 13 is switched to connect the first sampling channel 11a11; or, to cut off the first sampling channel 11a11 and connect the passage between the first input port 142a1 and the second sampling channel 11a12.

[0095] The differential pressure zeroing valve 13 is used to perform zeroing on the differential pressure sensor 142 .

[0096] 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.

[0097] When the pressure differential zeroing valve 13 switches to cut off the first sampling channel 11a11, the pressure differential zeroing valve 13 will also open the passage between the first input port 142a1 and the second sampling channel 11a12, that is, the first sampling channel 11a11 is cut off, but at this time, the first input port 142a1 of the pressure differential sensor 142 is also connected to the second sampling channel 11a12, which is equivalent to the first input port 142a1 and the second input port 142a2 of the pressure differential sensor 142 are both connected to the second sampling channel 11a12 at this time, the pressure differential sensor 142 only monitors the pressure of the second sampling channel 11a12, and the pressure difference is 0, thereby achieving zeroing of the pressure differential sensor 142.

[0098] 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 11a112 separated from each other, the first sampling interface 11a21 is connected to the first sub-channel 11a111, and the first input port 142a1 is connected to the second sub-channel 11a112. 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 11a112, 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 11a112 and the second sampling channel 11a12 is turned on, thereby enabling the first input port 142a1 of the differential pressure sensor 142 to be connected to the second sampling channel 11a12.

[0099] In one embodiment, please refer to 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.

[0100] 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.

[0101] In one embodiment, please refer to Figure 3 , Figure 6a , Figure 6b , Figure 7 and Fig.12 The channel may also include a proximal monitoring channel 11c1, and the base 11 is further provided with a proximal sampling interface 11c2 communicating with the proximal monitoring channel 11c1. The sensor assembly 14 also includes a proximal pressure sensor 143 having a proximal input port 143a, and the proximal input port 143a is communicated with the proximal monitoring channel 11c1.

[0102] For example, see Figure 6a, Figure 6b , Figure 7 A proximal sensing interface 11c3 connected to the proximal monitoring channel 11c1 may be provided on the base 11, and the proximal sensing interface 11c3 is used to install the proximal measuring component 143, that is, the proximal input port 143a of the proximal measuring component 143 is connected to the proximal monitoring channel 11c1 through the proximal sensing interface 11c3.

[0103] 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.

[0104] 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.

[0105] 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.

[0106] 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 .

[0107] 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.

[0108] 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.

[0109] 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.

[0110] 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.

[0111] 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 , Fig.18 and Fig.19 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.

[0112] In one embodiment, please refer to Figure 1 and Figure 5 The pressure monitoring module 10 may also be provided with a proximal zeroing valve 15 on the base 11, and the proximal zeroing valve 15 is connected to the proximal monitoring channel 11c1.

[0113] The proximal zeroing valve 15 may be detachably connected to the base 11 .

[0114] 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.

[0115] For example, see Figure 2 The differential pressure sampling interface 11a2 and the proximal sampling interface 11c2 may be provided on the third surface 11h.

[0116] Figure 2 The third surface 11 h in the figure 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 .

[0117] Since the sizes of the sampling interface and the proximal sampling interface 11c2 are 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. Therefore, it is convenient to set the sampling interface and the proximal sampling interface 11c2, and the thickness of the base 11 can be made relatively small, thereby reducing the overall size of the pressure monitoring module 10.

[0118] It should be noted that, in some embodiments, the third surface 11h may not be located between the first surface 11f and the second surface 11g, which means that the third surface 11h may be just one of the surfaces on the base 11.

[0119] 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.

[0120] 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.

[0121] 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.

[0122] 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.

[0123] 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.

[0124] 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.

[0125] In one embodiment, please refer to Figure 1 , Figure 6a , Figure 6b , Figures 16 to 19 The channel may further include a purge channel 11b1, and the base 11 is further provided with a purge air inlet interface 11b3 communicating with the purge channel 11b1.

[0126] The pressure monitoring module 10 further includes a switch valve 19 and a gas container 12, both of which are disposed on the base 11. For example, the switch valve 19 and the gas container 12 can be detachably connected to the base 11. The gas container 12 has a gas container 12 air inlet interface and a first gas container 12 air outlet interface, and the gas container 12 air inlet interface is connected to the purge channel 11b1. For example, see Figure 6a , Figure 6b The base 11 may be provided with an air container interface 11b2 connected to the purge channel 11b1, and the air inlet interface of the air container 12 is connected to the purge channel 11b1 through the air container interface 11b2. The air outlet interface of the first air container 12 is connected to the pressure difference monitoring channel 11a1, and the switch valve 19 is connected to the purge channel 11b1. The switch valve 19 is switched to open or close the purge channel 11b1.

[0127] The pressure difference generator 30 is mainly used near the patient end or on the exhalation channel, so the gas exhaled by the patient will enter the pressure difference monitoring channel 11a1. Since the exhaled gas contains a large amount of water vapor, it will condense to form condensed water after contacting the inner wall of the pressure difference monitoring channel 11a1, and adhere to the pressure difference monitoring channel 11a1 and affect the measurement accuracy of the pressure difference sensor 142. Therefore, the condensed water can be removed by setting the gas volume 12.

[0128] Specifically, 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 .

[0129] In some other embodiments, the purge channel 11 b 1 may not be provided. For example, the gas inlet interface of the gas container 12 may be connected to the gas transfer component 50 through the external pipe 20 .

[0130] See also Figure 6a , Figure 6b , Figure 7 , Figures 16 to 19 The air outlet interface of the first air container 12 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 generated 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.

[0131] The switch valve 19 is used to open or close the purge channel 11b1. That is, after the switch valve 19 opens the purge channel 11b1, the gas from the gas transmission component 50 can enter the gas container 12 through the purge channel 11b1, and after the switch valve 19 closes the purge channel 11b1, the gas from the gas transmission component 50 cannot enter the gas container 12 through the purge channel 11b1.

[0132] In one embodiment, please refer to Figure 6a , Figure 6b and Figure 7 For the pressure difference monitoring channel 11a1 having a first sampling channel 11a11 and a second sampling channel 11a12, the number of the first gas container 12 outlet interfaces may also be two, one of the two first gas container 12 outlet interfaces is connected to the first sampling channel 11a11, and the other second interface of the two first gas container 12 outlet interfaces is connected to the second sampling channel 11a12.

[0133] The gas container 12 can also be connected to the first sampling channel 11a11 and the second sampling channel 11a12 through the adapter component 16. For example, in one embodiment, see 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 air outlet interface of the first air capacitor 12, one of the two air outlet interfaces of the first air capacitor 12 being connected to the first sampling channel 11a11 through an air resistor 161, and the other of the two air outlet interfaces of the first air capacitor 12 being connected to the second sampling channel 11a12 through another air resistor 161.

[0134] That is to say, by setting the air resistance 161, the size of the air outlet interface of the first air container 12 can be made relatively larger to facilitate the installation of the air outlet interface of the first air container 12.

[0135] 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.

[0136] 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 12 outlet interface 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 5As 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.

[0137] In one embodiment, please refer to Figure 6a , Figure 6b , Figure 7 and Fig. 9 For the base 11 having the proximal monitoring channel 11c1, the gas container 12 may also have a second gas container outlet interface 12c connected to the proximal monitoring channel 11c1.

[0138] 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.

[0139] 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.

[0140] 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.17In 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.

[0141] 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.19 During 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.

[0142] In one embodiment, please refer to Figure 1 , Figure 6a , Figure 6b , Figure 7 and Fig.13The PEEP valve 18 may also have a PEEP second air outlet 18e, which 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 enter the gas container 12 through the PEEP valve 18 and the connected purge channel 11b1.

[0143] 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.

[0144] 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.

[0145] 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.

[0146] In one embodiment, please refer to Figure 2 and Figure 3 , the gas container 12, the PEEP valve 18 and the sensor assembly 14 can all be arranged on the first surface 11f, the gas container 12 and the PEEP valve 18 can be located on the same side of the sensor assembly 14 along the first direction, and the gas container 12 is located on one side of the PEEP valve 18 along the second direction. This layout can make full use of the space of the first surface 11f, so that the layout of the gas container 12, the PEEP valve 18 and the sensor assembly 14 is more compact.

[0147] In one embodiment, please refer to Figure 2 , Figure 5 , Fig.10 and Fig.11Part of the structure of the gas container 12 can be spaced apart from the base 11, and at least part of the structure of the differential pressure zeroing valve 13 is located in the accommodating space 10a.

[0148] That is to say, only part of the structure of the differential pressure zeroing valve 13 may be located in the accommodation space 10a, or the entire differential pressure zeroing valve 13 may 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 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.

[0149] For further information, see Figure 2 , Figure 5 , Fig.10 and Fig.11 For the pressure monitoring module 10 having the proximal zeroing valve 15 , at least a portion of the structure of the proximal zeroing valve 15 may also be located in the accommodating space 10 a .

[0150] That is to say, only part of the structure of the proximal zero calibration valve 15 may be located in the accommodation space 10a, or the entire proximal zero calibration valve 15 may be located in the accommodation space 10a, and part of the structure equivalent to the gas container 12 is also 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.

[0151] In one embodiment, please refer to Figure 3 , Figure 6a , Figure 6b , Figure 7 and Fig.12 The channel may also include a machine-side monitoring channel 11d1, and the base 11 is also provided with a machine-side sampling interface 11d2 connected to the machine-side monitoring channel 11d1. The measuring component also includes a machine-side pressure sensor 144 having a machine-side input port 144a, and the machine-side input port 144a is connected to the machine-side monitoring channel 11d1.

[0152] See also Figures 14 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] For example, see Figure 6a , Figure 6b and Figure 7A machine-side sensing interface 11d3 connected to the machine-side monitoring channel 11d1 may be provided on the base 11. 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.

[0154] The machine-side pressure sensor 144 can obtain the pressure value close to the end of the medical ventilation equipment (referred to as the machine-side) by monitoring the pressure in the machine-side monitoring channel 11d1.

[0155] In one embodiment, please refer to Figure 1 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] For example, see Figure 2 The machine-side sampling interface 11d2 and the exhalation valve pressure control interface 11e4 can be arranged on the same side of the first surface 11f along the second direction.

[0159] See also Figures 1 to 3 , Figures 5 to 7 Another pressure monitoring module 10 according to an embodiment of the present application includes a base 11 , a PEEP valve 18 and a sensor assembly 14 .

[0160] The base 11 is provided with an exhalation valve pressure control interface 11e4, and at least one channel is formed on the base 11, wherein the channel at least includes a PEEP channel 11e1 communicated with the exhalation valve pressure control interface 11e4;

[0161] The PEEP valve 18 is disposed on the base 11 . The PEEP valve 18 has a PEEP air inlet 18 a and a PEEP first air outlet 18 b . The PEEP first air outlet 18 b is communicated with the PEEP channel 11 e 1 .

[0162] The sensor assembly 14 includes a circuit board 141 and at least one measuring component electrically connected to the circuit board 141, and the input port of the measuring component is connected to the corresponding channel, wherein the measuring component at least includes a PEEP pressure sensor 145 having a PEEP input port 145a, and the PEEP input port 145a is connected to the PEEP channel 11e1.

[0163] Compared with the pressure monitoring module 10 of the previous embodiment, the base 11 of the pressure monitoring module 10 of this embodiment may only be provided with the exhalation valve pressure control interface 11e4 and the PEEP channel 11e1, but not with the pressure difference sampling interface 11a2 and the pressure difference monitoring channel 11a1. The sensor assembly 14 may also only be provided with the PEEP pressure sensor 145, but not with the pressure difference sensor 142. In other words, the PEEP valve 18 may be integrated on the base 11, and the PEEP channel 11e1 formed on the base 11 may be used to replace the connecting pipe in the related art. The pressure monitoring module 10 is also highly integrated and relatively small in overall size, which is convenient for installing the PEEP valve 18 and can also reduce the cost of production and subsequent maintenance.

[0164] In one embodiment, the sensor assembly 14 may also be disposed on the base 11 , which means that the entire sensor assembly 14 may also be integrated on the base 11 to improve the integration of the pressure monitoring module 10 .

[0165] Further optionally, regarding the design of the base and / or other related designs such as the PEEP channel, reference may be made to the introduction of the aforementioned embodiments, which will not be repeated here.

[0166] 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.

[0167] 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.

[0168] It should be noted that for each embodiment of the present application, taking the first direction as an example:

[0169] (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;

[0170] (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;

[0171] (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.

[0172] 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.

[0173] 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 pressure differential sampling interface and an exhalation valve pressure control interface, and a channel is formed on the base, wherein the channel includes a pressure differential monitoring channel communicated with the pressure differential sampling interface and a PEEP channel communicated with the exhalation valve pressure control interface; A PEEP valve is arranged on the base, the PEEP valve has a PEEP air inlet and a PEEP first air outlet, and the PEEP first air outlet is communicated with the PEEP channel; A sensor assembly, the sensor assembly comprising a circuit board and a measuring component electrically connected to the circuit board, wherein the measuring component comprises a differential pressure sensor and a PEEP pressure sensor, the differential pressure input port of the differential pressure sensor is connected to the differential pressure monitoring channel, and the PEEP input port of the PEEP pressure sensor is connected to the PEEP channel.

2. The pressure monitoring module according to claim 1, characterized in that: The PEEP channel includes a PEEP sampling branch, a PEEP monitoring branch and a PEEP control branch that are interconnected. The PEEP first air outlet is connected to the PEEP sampling branch, the PEEP input port is connected to the PEEP monitoring branch, and the exhalation valve pressure control interface is connected to the PEEP control branch.

3. The pressure monitoring module according to claim 2, characterized in that: The PEEP channel has a junction in it, and the PEEP sampling branch, the PEEP monitoring branch and the PEEP control branch intersect at the junction.

4. The pressure monitoring module according to claim 2 or 3, characterized in that: One side of the base has a first surface, on which a PEEP sampling interface, a PEEP sensing interface and the exhalation valve pressure control interface are provided. The PEEP first air outlet is connected to the PEEP sampling branch through the PEEP sampling interface, and the PEEP input port is connected to the PEEP monitoring branch through the PEEP sensing interface.

5. The pressure monitoring module according to claim 4, characterized in that: The PEEP sampling interface and the PEEP sensing interface are respectively located on two opposite sides of the first surface along the first direction.

6. The pressure monitoring module according to claim 5, characterized in that: The exhalation valve pressure control interface is close to one side of the first surface along a second direction, wherein the second direction intersects with the first direction.

7. The pressure monitoring module according to any one of claims 1 to 3, 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 and a second sampling interface. The differential pressure input port of the differential pressure sensor includes a first input port and a second input port. The first sampling channel is respectively connected to the first sampling interface and the first input port, and the second sampling channel is respectively connected to the second sampling interface and the second input port.

8. The pressure monitoring module according to claim 7, characterized in that: The pressure monitoring module also includes a differential pressure zeroing valve arranged on the first sampling channel and the second sampling channel, and the differential pressure zeroing valve is switched to open the first sampling channel; or, the first sampling channel is closed and the passage between the first input port and the second sampling channel is opened.

9. The pressure monitoring module according to claim 8, 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 input port 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.

10. The pressure monitoring module according to claim 1, characterized in that: The channel also includes a proximal monitoring channel, and the base is also provided with a proximal sampling interface connected to the proximal monitoring channel; The sensor assembly also includes a proximal pressure sensor having a proximal input port, wherein the proximal input port is in communication with the proximal monitoring channel.

11. The pressure monitoring module according to claim 10, characterized in that: The pressure monitoring module further includes a proximal zeroing valve which is arranged on the base and communicated with the proximal monitoring channel.

12. The pressure monitoring module according to claim 10, characterized in that: The base has a third surface, and the differential pressure sampling interface and the proximal sampling interface are arranged on the third surface.

13. The pressure monitoring module according to claim 12, characterized in that: The base has a first surface and a second surface that are opposite to each other and spaced apart, and the third surface is located at the interval between the first surface and the second surface.

14. The pressure monitoring module according to claim 10, 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 and the proximal monitoring channel are set in the second channel setting area.

15. The pressure monitoring module according to claim 14, characterized in that: The differential pressure sampling interface and the proximal sampling interface are located on a side of the second channel setting area away from the first channel setting area.

16. The pressure monitoring module according to claim 15, characterized in that: The exhalation valve pressure control interface is located on a side of the first channel setting area away from the second channel setting area.

17. The pressure monitoring module according to claim 1, characterized in that: The channel also includes a purge channel, and the base is also provided with a purge air inlet interface connected to the purge channel; The pressure monitoring module also includes a switching valve arranged on the base and an air container having an air container air inlet interface and a first air container air outlet interface, the air container air inlet interface is connected to the purge channel, the first air container air outlet interface is connected to the pressure difference monitoring channel, the switching valve is connected to the purge channel, and the switching valve is switched to open or close the purge channel.

18. The pressure monitoring module according to claim 17, 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 include a first sampling interface connected to the first sampling channel and a second sampling interface connected to the second sampling channel; There are two first gas container outlet interfaces, one of which is connected to the first sampling channel, and the other of which is connected to the second sampling channel.

19. The pressure monitoring module according to claim 18, characterized in that: The channel also includes a proximal monitoring channel, and the base is also provided with a proximal sampling interface connected to the proximal monitoring channel; the gas container also has a second gas container outlet interface connected to the proximal monitoring channel.

20. The pressure monitoring module according to claim 17, characterized in that: The PEEP valve further comprises a PEEP second air outlet, and the PEEP second air outlet is communicated with the purge channel through the purge air inlet interface.

21. The pressure monitoring module according to claim 17, characterized in that: The base has a first channel setting area, a second channel setting area, and a third channel setting area located between the first channel setting area and the second channel setting area, the PEEP channel is set in the first channel setting area, the pressure difference monitoring channel is set in the second channel setting area, and the purge channel is set in the third channel setting area.

22. The pressure monitoring module according to claim 17, characterized in that: One side of the base has a first surface, and the air capacity, the PEEP valve and the sensor assembly are all arranged on the first surface, the air capacity and the PEEP valve are located on the same side of the sensor assembly along a first direction, and the air capacity is located on a side of the PEEP valve along a second direction, wherein the first direction intersects with the second direction.

23. The pressure monitoring module according to any one of claims 1 to 3, characterized in that: The channel also includes a machine-end monitoring channel, and the base is also provided with a machine-end sampling interface connected to the machine-end monitoring channel; The measuring component also includes a machine-end pressure sensor having a machine-end input port, and the machine-end input port is connected to the machine-end monitoring channel.

24. The pressure monitoring module according to claim 22, 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.

25. The pressure monitoring module according to claim 23, characterized in that: One side of the base has a first surface, and the machine-end sampling interface and the exhalation valve pressure control interface are arranged on the same side of the first surface along the second direction.

26. The pressure monitoring module according to any one of claims 1 to 3, characterized in that: One side of the base has a first surface, and the sensor component is disposed on the first surface.

27. The pressure monitoring module according to claim 26, characterized in that: The base has a mounting portion arranged on the first surface, and the circuit board is fastened to the mounting portion.

28. The pressure monitoring module according to claim 26, characterized in that: The sensor assembly also includes an adapter bracket having an adapter interface, and the input port of the measuring component is connected to the corresponding channel through the corresponding adapter interface.

29. The pressure monitoring module according to claim 26, characterized in that: The sensor component is arranged on one side of the first surface along a first direction, and all the channels are located on the same side of the circuit board along the first direction.

30. The pressure monitoring module according to any one of claims 1 to 3, 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.

31. The pressure monitoring module according to claim 30, 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.

32. The pressure monitoring module according to any one of claims 1 to 3, 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.

33. A pressure monitoring module for medical ventilation equipment, characterized in that: include: A base, wherein the base is provided with an exhalation valve pressure control interface, and at least one channel is formed on the base, wherein the channel at least includes a PEEP channel connected to the exhalation valve pressure control interface; A PEEP valve is arranged on the base, the PEEP valve has a PEEP air inlet and a PEEP first air outlet, and the PEEP first air outlet is communicated with the PEEP channel; A sensor assembly, the sensor assembly comprising a circuit board and at least one measuring component electrically connected to the circuit board, the input port of the measuring component being communicated with the corresponding channel, wherein the measuring component at least comprises a PEEP pressure sensor having a PEEP input port, the PEEP input port being communicated with the PEEP channel.

34. A medical ventilation device, characterized in that: include: 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 1-33.

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