CN219231198U

CN219231198U - Medical check valve convenient to pressure release

Info

Publication number: CN219231198U
Application number: CN202320211341.8U
Authority: CN
Inventors: 罗文杰; 雷达; 查若瑶
Original assignee: Zhejiang Shuguang Technology Co ltd
Current assignee: Zhejiang Shuguang Technology Co ltd
Priority date: 2023-02-14
Filing date: 2023-02-14
Publication date: 2023-06-23
Anticipated expiration: 2033-02-14

Abstract

The utility model provides a medical check valve convenient for pressure relief, which relates to the technical field of medical appliances and comprises a check valve shell, a valve core assembly, a check valve pressure relief opening and a check valve plug, wherein the valve core assembly is arranged in the check valve shell, the valve core assembly comprises a valve core, an elastic piece and a plug, the elastic piece is connected with the valve core and the plug, the check valve shell is positioned at two sides of the valve core assembly to respectively form an inflation section and an air inlet section, and the check valve pressure relief opening is arranged at the air inlet section. Through set up the check valve relief vent on the check valve casing, the check valve relief vent is located the inboard of case subassembly, when needs pressure release, only need take off the check valve chock plug of check valve relief vent department and can realize convenient pressure release, the step has been simplified, pressure release is efficient, appears other situations when the tube drawing in-process, when needs the intubate treatment again, need not to change new apparatus, has reduced patient's economic burden, has shortened operation duration.

Description

Medical check valve convenient to pressure release

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a medical one-way valve convenient for pressure relief.

Background

In the field of medical appliances, the one-way valve is widely applied to laryngeal masks, trachea cannula, balloon catheters, dilatation balloons and other products. Most of the check valves in the current market consist of check valve shells, check valve seats, springs, rubber mats, valve cores and the like. In order to make the valve core in a sealing state or a conducting state, an elastic restoring structure is mostly adopted to realize the return sealing of the valve core.

If the tracheal cannula product must use the check valve to inflate the sacculus, when sacculus inflation volume exceeds standard value, the too big pressure of sacculus has certain injury to the patient, need to use syringe or other devices to carry out the pressure release to the sacculus internal pressure at this moment, and the operation is very loaded down with trivial details.

If the tracheal intubation product is finished in an operation, the balloon is required to be decompressed (deflated) before the intubation is pulled out, so that the balloon is flat, and conventionally, a pipe connected with a one-way valve is cut off or severed, so that the operation is complicated. If other conditions occur in the tube drawing process, new instruments need to be replaced when the tube drawing process is carried out, so that the economic burden of a patient is increased or the operation time is prolonged.

The present application is directed to the above-mentioned drawbacks.

Disclosure of Invention

The utility model aims to provide a medical one-way valve convenient for pressure relief, which solves the problem that the pressure relief of a one-way valve product in the prior art is complicated in the use process.

In order to solve the problems, the utility model provides a medical check valve convenient for pressure relief, which comprises a check valve shell, a valve core assembly, a check valve pressure relief opening and a check valve plug, wherein the valve core assembly is arranged in the check valve shell, the valve core assembly comprises a valve core, an elastic piece and a plug, the elastic piece is connected with the valve core and the plug, the check valve shell is positioned on two sides of the valve core assembly to respectively form an inflation section and an air inlet section, the check valve pressure relief opening is arranged at the air inlet section, the check valve plug is detachably arranged at the check valve pressure relief opening, and the check valve plug is used for blocking the check valve pressure relief opening.

According to an embodiment of the utility model, a luer connector is arranged at the inflation section of the check valve housing.

According to an embodiment of the utility model, the one-way valve plug head is connected to the one-way valve housing.

According to an embodiment of the utility model, the check valve plug is connected to the check valve housing by a flexible connection.

According to an embodiment of the utility model, the check valve plug is in interference fit with the check valve relief opening.

According to an embodiment of the utility model, the pressure relief opening of the one-way valve is a hole formed in the valve housing of the one-way valve.

According to one embodiment of the utility model, the one-way valve plug head includes a plug portion and a cap portion, the cap portion having a diameter greater than the plug portion diameter.

According to an embodiment of the present utility model, the port of the pressure relief port of the check valve is disposed on the valve housing in a protruding manner, and a plane is formed at the top of the port, and the top cover of the check valve plug has a plane for being attached to the plane at the top of the port of the pressure relief port of the check valve.

According to one embodiment of the utility model, the cross-sectional area of the top cover portion is greater than the planar area of the top portion of the relief port of the one-way valve.

According to an embodiment of the present utility model, the plug portion has a length greater than a depth of the relief port of the check valve.

The utility model has the beneficial effects that the one-way valve decompression opening is arranged on the one-way valve shell, the one-way valve decompression opening is positioned at the inner side of the valve core assembly, when decompression is needed, the convenient decompression can be realized only by taking down the one-way valve plug at the one-way valve decompression opening, compared with the traditional one-way valve which needs to decompress by means of devices such as a syringe or the like or a pipeline cutting way, the pressure release is simplified, the pressure release efficiency is high, when other conditions occur in the tube drawing process, and the new instrument is not needed to be replaced when the tube drawing treatment is needed, the economic burden of a patient is reduced, and the operation duration is shortened.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic diagram of a structure of a check valve when a pressure relief port is blocked;

FIG. 2 is a schematic diagram of the structure of the check valve when the pressure relief port is opened;

fig. 3 is a cross-sectional view of a medical check valve that facilitates pressure relief.

Detailed Description

The following description is presented to enable one skilled in the art to practice the utility model and is provided only to enable the utility model. The embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the utility model defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other arrangements without departing from the spirit and scope of the utility model.

A medical check valve convenient for pressure relief, as shown in figure 3, comprises a check valve shell 1, a valve core component, a check valve pressure relief opening 6 and a check valve plug 4, wherein the check valve shell 1 is a pipeline with a circular section, the valve core component is arranged in the check valve shell 1, the valve core component comprises a valve core 2, an elastic piece 3 and a plug 5, the elastic piece 3 is connected with the valve core 2 and the plug 5, 3 is a spring, the spring is sleeved on the valve core 2, the plug 5 is arranged in the check valve shell 1, a hole for the valve core 2 to pass through is arranged in the plug 5, the plug 5 plays a role of guiding and limiting the spring, a sealing surface propped against the inner wall of the check valve shell 1 is arranged on the valve core 5, the valve core 2 is integrally formed by rubber coating, the traditional check valve parts are reduced, the sealing surface is formed at a rubber pad of the valve core 2, a sealing surface matched with the sealing surface is arranged on the check valve shell 1, the check valve shell 1 is positioned at two sides of the valve core assembly to form an inflation section 10 and an air inlet section 11 respectively, the pipeline of the air inlet section 11 is connected with a laryngeal mask, an trachea cannula, a balloon catheter, an expansion balloon and the like, when the inflation is carried out through the inflation section 10, the valve core 2 moves to one side of the plug 5 and compresses a spring, a sealing surface is separated from the inner wall of the check valve shell 1 to form a gas inlet channel, the check valve pressure relief opening 6 is arranged at the air inlet section 11, the check valve plug 4 is detachably arranged at the check valve pressure relief opening 6, the check valve plug 4 is used for blocking the check valve pressure relief opening 6, when the check valve plug 4 blocks the check valve pressure relief opening 6, the check valve is used as a conventional check valve, when pressure relief is needed, the check valve plug 4 is pulled out from the check valve pressure relief opening 6 to carry out deflation pressure relief, and the time of the check valve plug head for blocking the check valve pressure relief opening is controlled, the pressure in the pipeline can be adjusted.

Preferably, the inflatable section 10 of the check valve housing 1 is provided with a luer fitting 12 that can be locked with a syringe or other air intake device.

Preferably, for convenience of use, the check valve plug 4 is connected to the check valve housing 1, and the check valve plug 4 is prevented from being lost after the check valve plug 4 is pulled out.

Preferably, the check valve plug 4 is connected to the check valve housing 1 by a flexible connection portion 42, the connection portion 42 being of a plastic material, such as tpe.

Preferably, in this embodiment, the check valve plug 4 and the check valve relief opening 6 are in interference fit, and the check valve plug 4 and the check valve relief opening 6 may also be in threaded fit.

Preferably, the check valve pressure relief opening 6 is a hole formed in the check valve casing 1, so that the check valve casing 1 is integrally formed and has the functions of conducting, sealing, pressure relief and the like, the input quantity of dies is reduced, the installation flow and the glue spraying process are reduced, and the production efficiency is improved.

Preferably, as shown in fig. 1-3, the check valve plug 4 includes a plug portion 40 and a cap portion 41, the diameter of the cap portion 41 being larger than the diameter of the plug portion 40, the cap portion 41 functioning as a location and also functioning to facilitate pressing of the check valve plug 4 when the check valve plug 4 is plugged at the check valve relief port 6.

Preferably, the protruding setting of check valve relief vent 6 port position is on check valve casing 1 to form the plane at the port top, the top cap portion 41 of check valve plug 4 has the plane that is used for pasting with check valve relief vent 6 port top plane, and when check valve plug 4 blockked up check valve relief vent 6, check valve plug 4 bottom surface and check valve relief vent 6 port top plane paste, can play sealed effect.

Preferably, the cross section area of the top cover part 41 is larger than the plane area of the top of the port of the pressure relief opening 6 of the one-way valve, so that the edge of the top cover part 41 is in a suspended state, and when the one-way valve plug 4 is pulled out, the one-way valve plug 4 can be conveniently and laborsaving to take out through the edge position of the top cover part 41.

Optionally, the length of the plug portion 40 is greater than the depth of the check valve relief opening 6, and after the plug portion 40 is plugged into the check valve relief opening 6, the plug portion 40 extends into the check valve housing 1, so that the sealing effect of the plug portion 40 can be enhanced, and the plug portion 40 is prevented from being easily ejected out due to stress when the check valve is at high pressure.

When the check valve is required to be inflated, the pressure relief opening of the check valve is plugged by the check valve plug head, then the check valve plug head is connected with the luer connector end of the check valve by a syringe or other devices, the valve core is pushed while being connected, the spring is compressed, and the sealing surface at the rubber pad on the valve core is separated from the sealing surface of the valve housing of the check valve, so that inflation is realized, and inflation is stopped when a certain pressure is reached in a pipeline; after the inflation is stopped, the injector or other air inlet devices can be removed, and the valve core can be reset through the spring, so that the sealing surface of the rubber pad is tightly pressed on the sealing surface of the inner wall of the valve casing of the one-way valve, and the one-way valve is sealed; when pressure relief is needed, the check valve plug is pulled out, so that the pressure in the pipeline can be relieved rapidly; the pressure in the pipeline can be adjusted by controlling the time for the one-way valve plug to plug the pressure relief opening of the one-way valve.

It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are by way of example only and are not limiting. The objects of the present utility model have been fully and effectively achieved. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model are susceptible to any variations and modifications without departing from the principles.

Claims

1. A medical check valve convenient to pressure release, its characterized in that: including check valve casing (1), case subassembly, check valve pressure release mouth (6) and check valve chock plug (4), the case subassembly sets up in check valve casing (1), the case subassembly includes case (2), elastic component (3) and end cap (5), elastic component (3) with case (2) with end cap (5) are connected, check valve casing (1) are located case subassembly both sides form respectively and aerify section (10) and air inlet section (11), check valve pressure release mouth (6) set up air inlet section (11) department, check valve chock plug (4) detachable install check valve pressure release mouth (6) department, check valve chock plug (4) are used for the jam check valve pressure release mouth (6).

2. The medical check valve for facilitating pressure relief according to claim 1, wherein: a luer connector (12) is arranged at the air charging section (10) of the one-way valve casing (1).

3. A medical check valve for facilitating pressure relief according to claim 1 or 2, wherein: the check valve plug (4) is connected to the check valve housing (1).

4. A medical check valve for facilitating pressure relief according to claim 3, wherein: the check valve plug (4) is connected with the check valve housing (1) through a flexible connecting part (42).

5. A medical check valve for facilitating pressure relief according to claim 1 or 4, wherein: the check valve plug head (4) is in interference fit with the check valve pressure relief opening (6).

6. The medical check valve for facilitating pressure relief according to claim 5, wherein: the one-way valve pressure relief opening (6) is a hole formed in the one-way valve casing (1).

7. The medical check valve for facilitating pressure relief according to any one of claims 1, 2, 4, 6, wherein: the check valve plug (4) includes a plug portion (40) and a cap portion (41), the cap portion (41) having a diameter greater than the plug portion (40) diameter.

8. The medical check valve for facilitating pressure relief according to claim 7, wherein: the port position of the one-way valve pressure relief opening (6) is convexly arranged on the one-way valve shell (1) and forms a plane at the top of the port, and the top cover part (41) of the one-way valve plug head (4) is provided with a plane which is used for being attached to the plane at the top of the port of the one-way valve pressure relief opening (6).

9. The medical check valve for facilitating pressure relief according to claim 8, wherein: the cross-sectional area of the top cover part (41) is larger than the top plane area of the port of the pressure relief opening (6) of the one-way valve.

10. A medical check valve for facilitating pressure relief according to claim 8 or 9, wherein: the length of the plug part (40) is larger than the depth of the one-way valve pressure relief opening (6).