CN219700761U

CN219700761U - External breather valve and breathing machine that breathing machine was used

Info

Publication number: CN219700761U
Application number: CN202320400616.2U
Authority: CN
Inventors: 肖瑞柳; 张鹏杰; 伍海波; 张飞宇; 邹栋
Original assignee: Shenzhen Comen Medical Instruments Co Ltd
Current assignee: Shenzhen Comen Medical Instruments Co Ltd
Priority date: 2023-02-24
Filing date: 2023-02-24
Publication date: 2023-09-19
Anticipated expiration: 2033-02-24

Abstract

The utility model discloses an external breather valve for a breathing machine, which comprises a breather valve main body, a one-way valve, a one-way diaphragm and a valve cover; the breather valve main body is provided with a breather cavity; the breathing cavity is provided with an autonomous inspiration inlet, an oxygen supply outlet and a first expiration outlet; the oxygen supply inlet is communicated with the oxygen supply end of the breathing machine; the one-way valve is hermetically arranged at the autonomous air suction inlet; the one-way valve is used for allowing external gas to flow into the breathing cavity through the one-way valve when the oxygen supply inlet is insufficient or no air is supplied; the one-way diaphragm is arranged on the breather valve main body and is positioned outside the breather cavity; the unidirectional diaphragm is sealed and plugged at the first expiration outlet and can be propped open to open the first expiration outlet when a user exhales; the valve cover is arranged on the breather valve main body and is enclosed with the unidirectional diaphragm to form a pressure cavity; the valve cover is provided with a pressure pipe air inlet interface for communicating the pressure cavity with the outside. The utility model is beneficial to the spontaneous breathing of the user. The utility model also discloses a breathing machine.

Description

External breather valve and breathing machine that breathing machine was used

Technical Field

The utility model relates to the field of medical equipment, in particular to an external breather valve for a breathing machine and the breathing machine.

Background

In modern clinical medicine, a respirator is used as an effective means capable of replacing autonomous ventilation by manpower and is widely used in respiratory failure caused by various reasons, anesthesia respiratory management during major surgery, respiratory support treatment and emergency resuscitation; the external breather valve is an important component for connecting the oxygen supply end and the user end in the breathing machine, and is mainly used for connecting the breathing machine and the user, so that the separation of the exhaled gas and the inhaled gas is realized, and the smooth breathing action is ensured; however, the existing breather valve only has a single air inlet channel, and in a use state, the air inlet channel is connected with the oxygen supply end of the breathing machine, when the breathing machine fails and no air supply or air supply is insufficient, a user has to overcome the resistance of the breathing machine, and the air can be inhaled into the air inlet channel through the autonomous breathing device arranged in the breathing machine, so that the autonomous breathing of the user is not facilitated.

Disclosure of Invention

In order to overcome the defects in the prior art, one of the purposes of the utility model is to provide an external breather valve for a breathing machine, which is beneficial to spontaneous breathing of a user.

Another object of the present utility model is to provide a breathing apparatus, which is beneficial for the user to breathe spontaneously.

One of the purposes of the utility model is realized by adopting the following technical scheme:

an external breather valve for a ventilator, comprising:

the breather valve main body is provided with a breather cavity; the breathing cavity is provided with an autonomous inhalation inlet, an oxygen supply outlet and a first exhalation outlet which are all communicated with the outside; the oxygen supply outlet is used for communicating with a user; the oxygen supply inlet is communicated with the oxygen supply end of the breathing machine;

the check valve is hermetically arranged at the autonomous air suction inlet; the one-way valve is used for allowing external gas to flow into the breathing cavity through the one-way valve when the oxygen supply inlet is insufficient or no gas is supplied;

the one-way diaphragm is arranged on the breather valve main body and is positioned outside the breather cavity; the unidirectional diaphragm is hermetically plugged at the first expiration outlet and can be propped open to open the first expiration outlet when a user exhales;

the valve cover is arranged on the breather valve main body and is enclosed with the unidirectional diaphragm to form a pressure cavity; the valve cover is provided with a pressure pipe air inlet interface which communicates the pressure cavity with the outside.

Further, the unidirectional diaphragm is fixed on the breather valve main body through the edge of the unidirectional diaphragm, and the middle part of the unidirectional diaphragm protrudes to the direction of the first exhalation port to seal the first exhalation port.

Further, the breather valve main body comprises a valve seat provided with the breather cavity and a hollow outer tube fixed on the outer surface of the valve seat; the hollow outer tube is provided with a second expiration outlet and a tube orifice which are all communicated with the outside; the first expiration outlet is communicated with the breathing cavity and the hollow outer tube, and is opposite to the pipe orifice and axially spaced; the valve cover is matched with the hollow outer tube to press the edge of the unidirectional diaphragm tightly so as to fix the unidirectional diaphragm at the pipe orifice; the middle part of the unidirectional diaphragm protrudes towards the first exhalation port through the pipe orifice.

Further, the valve cover is clamped and connected with the hollow outer pipe.

Further, the valve seat is provided with a hollow inner tube extending into the hollow outer tube, and the first exhalation port is arranged at a position, close to the tube orifice, of the hollow inner tube.

Further, the air inlet interface of the pressure pipe is communicated with a connecting pipeline in a sealing way.

Further, a sealing ring is arranged between the one-way valve and the autonomous air suction inlet.

Further, the autonomous air suction inlet and the oxygen supply inlet are arranged left and right; the oxygen supply outlet and the first expiration outlet are vertically arranged.

The second purpose of the utility model is realized by adopting the following technical scheme:

a breathing machine comprises a breathing machine main body and an external breathing valve for the breathing machine.

Compared with the prior art, the utility model has the beneficial effects that:

according to the external breather valve for the breathing machine, the autonomous air suction inlet is arranged, and the one-way valve is arranged at the autonomous air suction inlet, so that when the breathing machine fails and no air supply or air source is insufficient, external air can directly flow into the breathing cavity through the one-way valve when a user autonomously sucks air, the external air does not need to pass through the breathing machine, the resistance of autonomous breathing is reduced, and the breathing machine is beneficial to the autonomous breathing of the user.

The breathing machine is beneficial to the spontaneous breathing of a user due to the fact that the breathing machine comprises the external breathing valve for the breathing machine.

Drawings

FIG. 1 is a schematic diagram of an external breather valve for a ventilator according to the present utility model

FIG. 2 is an exploded view of an external breather valve for a ventilator of the present utility model;

fig. 3 is a cross-sectional view of an outboard respiratory valve for a ventilator of the present utility model.

In the figure: 10. a breather valve body; 11. a valve seat; 111. a hollow inner tube; 12. a hollow outer tube; 20. a one-way valve; 21. a check valve body; 22. a valve membrane; 30. a unidirectional membrane; 40. a valve cover; 41. an air inlet port of the pressure pipe; 51. an autonomous inhalation inlet; 52. an oxygen supply inlet; 53. an oxygen supply outlet; 54. a first exhalation outlet; 60. a pressure chamber; 70. a second exhalation outlet; 80. a connecting pipe; 90. and (3) sealing rings.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 to 3, the utility model discloses an external breather valve for a breathing machine, which comprises a breather valve main body 10, a one-way valve 20, a one-way diaphragm 30 and a valve cover 40; the breather valve body 10 is provided with a breather chamber; the oxygen supply outlet 53 is for communication to a user, in particular the oxygen supply outlet 53 may be connected to the patient by connecting a mask or cannula; the oxygen supply inlet 52 is used for communicating with the oxygen supply end of the breathing machine; the check valve 20 is hermetically installed at the autonomous suction inlet 51, and it is understood that the check valve 20 is hermetically connected with the autonomous suction inlet 51 to avoid air leakage or air intake; the check valve 20 is used for allowing external air to flow into the breathing cavity through the check valve 20 when the oxygen supply inlet 52 is not supplied with air or is not supplied with air; the unidirectional diaphragm 30 is installed on the breather valve body 10 and located outside the breathing cavity; the unidirectional diaphragm 30 is hermetically sealed to the first exhale outlet 54 and can be pushed open to open the first exhale outlet 54 when a user exhales; the valve cover 40 is arranged on the breather valve main body 10 and encloses the unidirectional diaphragm 30 to form a pressure cavity 60; the valve cover 40 is provided with a pressure pipe air inlet interface 41 for communicating the pressure cavity 60 with the outside, and the pressure pipe air inlet interface 41 can be communicated with a pressure pipe or a PEEP valve which is independently arranged on the breathing machine, and is used for transmitting PEEP pressure and simultaneously using the positive end pressure of the real-time patient transmission for data processing and feedback regulation of the breathing machine.

Based on the above structure, when in use, the pressure pipe air inlet interface 41 is communicated with the pressure pipe of the breathing machine or the PEEP valve of the breathing machine, at the moment, the pressure pipe or the PEEP valve generates positive end-expiratory pressure according to set parameters to directly act on the unidirectional diaphragm 30, and then the unidirectional diaphragm 30 keeps airtight blocking of the first expiration outlet 54; the oxygen supply inlet 52 is communicated with the oxygen supply end of the breathing machine, when the breathing machine supplies oxygen normally, oxygen enters the breathing cavity from the breathing machine through the oxygen supply inlet 52 in the inspiration stage of the patient, at the moment, the pressure in the breathing cavity is higher than the external pressure to prevent external gas from flowing into the breathing cavity through the one-way valve 20, the oxygen in the breathing cavity flows to a user through the oxygen supply outlet 53, and in the expiration stage of the patient, the gas exhaled by the patient flows into the breathing cavity through the oxygen supply outlet 53 to further increase the pressure in the breathing cavity, at the moment, the pressure in the breathing cavity overcomes the positive end pressure of the PEEP valve to sufficiently push up the one-way diaphragm 30, then the first expiration outlet 54 is opened, at the moment, the first expiration outlet 54 communicates the breathing cavity with the outside, and then exhaust gas is exhausted; when the ventilator fails and does not supply oxygen or does not supply oxygen sufficiently, the pressure in the breathing cavity is smaller than the external pressure in the breathing cavity in the inspiration stage of the patient, the external gas directly flows into the breathing cavity through the one-way valve 20 and is sucked by a user, at the moment, the external gas is not influenced by the resistance of the ventilator, and is easier to enter the breathing cavity, so that the breathing cavity is beneficial to the autonomous breathing of the user.

It should be noted that, in this embodiment, the unidirectional diaphragm 30 and the valve cover 40 enclose to form the pressure chamber 60, so that not only can the pressure detection be performed through the pressure pipe air inlet interface 41 on the valve cover 40, but also the unidirectional diaphragm 30 can be tightly blocked by the positive end pressure of the PEEP valve of the respirator, so that the structure is simplified.

It should be noted that, the check valve 20 is a directly purchased part in the market, and the check valve 20 of this embodiment may include a check valve main body 21 disposed at the autonomous air intake port 51 and a valve film 22 disposed on the valve main body, where the valve film 22 is located at one end of the check valve main body 21 facing the respiratory valve; the valve membrane 22 is tightly attached to the breather valve body 10 due to the pressure in the breather cavity, so that the entry of external air is continuously prevented, and when the external pressure is high, the valve membrane is pushed open under the external pressure, so that the external air is allowed to enter.

Specifically, the unidirectional diaphragm 30 is fixed on the breather valve main body 10 through the edge thereof, the middle part of the unidirectional diaphragm 30 protrudes to the direction of the first expiration opening to hermetically seal the first expiration outlet 54, so that when in expiration, the pressure in the breathing cavity pushes the middle part of the unidirectional diaphragm 30 to be far away from the first expiration outlet 54, i.e. the first expiration outlet 54 is opened, and the structure is simple and easy to realize; specifically, the protruding portion of the one-way diaphragm 30 protrudes into the first exhalation outlet 54 to better block the first exhalation outlet 54.

The breather valve body 10 of the present embodiment includes a valve seat 11 provided with a breather chamber and a hollow outer tube 12 fixed to an outer surface of the valve seat 11; the hollow outer tube 12 is provided with a second exhaling outlet 70 and a tube orifice which both communicate the inside thereof with the outside; a first exhalation outlet 54 communicates the breathing chamber with the hollow outer tube 12 and is directly opposite and axially spaced from the mouthpiece; the valve cover 40 is matched with the hollow outer tube 12 to press the edge of the unidirectional diaphragm 30 so as to fix the unidirectional diaphragm 30 at the tube orifice; the middle part of the unidirectional membrane 30 protrudes towards the first exhalation port through the orifice; because the orifice is axially spaced from the first exhalation outlet 54, when the unidirectional diaphragm 30 is ejected, a gap exists between the first exhalation outlet 54 and the orifice, i.e., between the first exhalation outlet 54 and the edges of the unidirectional diaphragm 30, for the exhaust gas to enter the hollow outer tube 12 before being ejected from the second exhalation outlet 70; furthermore, the hollow outer tube 12 and the valve cover 40 are matched to fix the unidirectional diaphragm 30, so that the structure is simplified.

Preferably, the valve cover 40 is clamped and connected with the hollow outer tube 12, so that the disassembly and the assembly are convenient; specifically, a buckle can be arranged on the hollow outer tube 12, a hook is arranged on the valve cover 40, the valve cover 40 is sleeved outside the hollow outer tube 12, and the hook can be rotated to a position of being reversely buckled on the buckle by rotating the valve cover 40, so that the two are clamped and combined.

In order to ensure that the valve cap 40 can be clamped outside the hollow outer tube 12, the length of the hollow outer tube 12 is limited not to be too short, therefore, the valve seat 11 of the embodiment has a hollow inner tube 111 extending into the hollow outer tube 12, and the first exhalation port is arranged at a position of the hollow inner tube 111 close to the orifice, so as to shorten the axial interval between the first exhalation port 54 and the orifice, reduce the protruding radian of the unidirectional diaphragm 30, slow down the deformation degree of the unidirectional diaphragm 30, and protect the unidirectional diaphragm 30 structure.

Specifically, the unidirectional diaphragm 30 has elasticity, and the unidirectional diaphragm 30 can deform to block or be pushed up the first exhalation outlet 54.

The pressure pipe air inlet interface 41 of the embodiment is hermetically communicated with a connecting pipe 80, and the connecting pipe 80 is beneficial to being connected with an external pipe.

To avoid air leakage, a sealing ring 90 is provided between the check valve 20 and the autonomous suction inlet 51 of the present embodiment.

Specifically, the main intake air inlet 51 and the oxygen supply inlet 52 are arranged in a left-right manner; the oxygen supply outlet 53 and the first exhale outlet 54 are vertically arranged and uniformly distributed, so that the connection with an external pipeline and the like is avoided due to mutual blocking, and the appearance is attractive.

The embodiment also discloses a breathing machine, which comprises a breathing machine main body and the external breathing valve for the breathing machine, and has the same technical effect as the external breathing valve for the breathing machine. The oxygen supply end, the pressure pipeline or the PEEP valve of the external breathing machine are all arranged on the breathing machine main body.

The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.

Claims

1. An external breather valve for a ventilator, comprising:

a breather valve body (10) provided with a breather chamber; an autonomous inhalation inlet (51), an oxygen supply inlet (52), an oxygen supply outlet (53) and a first exhalation outlet (54) which are all communicated with the outside are arranged on the respiratory cavity; the oxygen supply outlet (53) is used for communicating with a user; the oxygen supply inlet (52) is used for communicating with the oxygen supply end of the breathing machine;

a one-way valve (20) which is hermetically arranged at the autonomous air suction inlet (51); the one-way valve (20) is used for allowing external gas to flow into the breathing cavity through the one-way valve (20) when the oxygen supply inlet (52) is insufficient or no air is supplied;

a unidirectional diaphragm (30) mounted on the breather valve body (10) and located outside the breather chamber; the unidirectional diaphragm (30) is hermetically blocked at the first expiration outlet (54) and can be pushed open to open the first expiration outlet (54) when a user exhales;

the valve cover (40) is arranged on the breather valve main body (10) and is enclosed with the unidirectional diaphragm (30) to form a pressure cavity (60); the valve cover (40) is provided with a pressure pipe air inlet interface (41) for communicating the pressure cavity (60) with the outside.

2. The external breather valve for a breathing machine according to claim 1, wherein the unidirectional diaphragm (30) is fixed on the breather valve main body (10) by its edge, and the middle part of the unidirectional diaphragm (30) protrudes toward the first exhale outlet to the direction of the first exhale outlet to seal the first exhale outlet (54).

3. The external breather valve for a breathing machine according to claim 2, wherein the breather valve body (10) comprises a valve seat (11) provided with the breather chamber and a hollow outer tube (12) fixed to an outer surface of the valve seat (11); the hollow outer tube (12) is provided with a second expiration outlet (70) and a tube orifice which are all communicated with the outside; the first exhalation outlet (54) communicates the breathing chamber with the hollow outer tube (12) and is directly opposite and axially spaced from the mouthpiece; the valve cover (40) is matched with the hollow outer tube (12) to press the edge of the unidirectional diaphragm (30) so as to fix the unidirectional diaphragm (30) at the pipe orifice; the middle part of the unidirectional diaphragm (30) protrudes towards the first expiration outlet through the pipe orifice.

4. An external breather valve for a respirator according to claim 3, wherein the valve cover (40) is snap-fitted to the hollow outer tube (12).

5. An external breather valve for a ventilator according to claim 3, wherein the valve seat (11) has a hollow inner tube (111) extending into the hollow outer tube (12), and the first exhalation outlet is provided in a position of the hollow inner tube (111) close to the mouthpiece.

6. The external breather valve for a respirator according to claim 1, wherein the pressure pipe inlet port (41) is in airtight communication with a connecting pipe (80).

7. The external breathing valve for a breathing machine according to claim 1, characterized in that a sealing ring (90) is arranged between the non-return valve (20) and the autonomous inspiration inlet (51).

8. The external breathing valve for a breathing machine according to claim 1, wherein the autonomous inspiration inlet (51) and the ventilation inlet (52) are laterally spaced; the oxygen supply outlet (53) and the first exhale outlet (54) are arranged up and down.

9. A ventilator comprising a ventilator body and an external breather valve for a ventilator according to any of claims 1-8.