CN101745169B

CN101745169B - Breather valve device

Info

Publication number: CN101745169B
Application number: CN 200810239312
Authority: CN
Inventors: 吴满立; 董佩
Original assignee: Beijing Aeonmed Co Ltd
Current assignee: Beijing Aeonmed Co Ltd
Priority date: 2008-12-09
Filing date: 2008-12-09
Publication date: 2013-10-23
Anticipated expiration: 2028-12-09
Also published as: CN101745169A

Abstract

The invention provides a breather valve device, comprising a valve body (10), a valve cover (30), an air inlet pipe (40), an exhaust pipe (50), a diaphragm (60) and a respiration valve (70), wherein the valve body (10) is provided with a valve cavity (20); the valve cover (30) is sealed at an opposite end (22) of the valve cavity (20) and a patient end (90); the air inlet pipe (40) is connected on the side wall of the valve cavity (20); the diaphragm (60) is held in the air inlet pipe (40) and selectively communicates the air inlet pipe (40) and the valve cavity (20); the respiration valve (70) is arranged between the valve cover and the end (22) and forms a space (32) with the valve cover; and exhaust pipe (50) is selectively communicated with the valve cavity (20) through the respiration valve (70). According to the breather valve in the invention, as the diaphragm is separated from the respiration valve, the diaphragm is prevented from bonding with the respiration valve, and the unobstructed respiration of the patient can be ensured in the using process of the breather valve device for a long time.

Description

Breather valve device

Technical field

The present invention relates to a kind of breather valve device, relate in particular to a kind of breather valve device that is applied to the medical valve field.

Background technology

In medical domain, can use breather valve in the oxygen breathing device that often uses in patient's treatment and the rehabilitation course, owing to use the particularity of object, therefore, the structural requirement of breather valve is also very strict, and it must keep clear, and prevents because the logical and life-threatening phenomenon of hypopnea occurs.

The structure that breather valve device of the prior art generally adopts respiration valve and diaphragm to be assembled together, as shown in Figure 1, as can be seen from Figure 1, breather valve of the prior art comprises valve body 4, valve gap 1, valve pocket 5 and diaphragm 3 and respiration valve 2, wherein, diaphragm 3 and respiration valve 2 combine be arranged on valve pocket 5 near place, the end of valve gap 1, and so that valve pocket 5 optionally be arranged on valve gap on air inlet 6 or air vent 7 be connected.Particularly, the operation principle of this breather valve of the prior art is such: when air-breathing, air-flow enters from the air inlet 6 that is arranged on the valve gap, under the effect of stream pressure, diaphragm 3 moves down, thereby air-flow is entered in the valve pocket 5 from the slit between diaphragm 3 and the respiration valve 2, and then gas is sent into patient end; When exhaling, under the effect of breath pressure, diaphragm 3 upwards pushes respiration valve 2, simultaneously, gas pressure makes respiration valve 2 to upper process, thereby the slit occurs between the end near valve gap 1 of respiration valve 2 and valve pocket 5, gas enters air vent 7 from this slit, thereby patient's Exhaled gasesS is discharged.

Because respiration valve and diaphragm generally adopt the medical silica-gel material, its shortcoming is to be bonded together easily when running into water droplet, and patient must discharge Exhaled gasesS in respiratory by the breather valve inner chamber, therefore, the water droplet that condenses on a small quantity and form inevitably can appear in the valve pocket of breather valve, thereby cause easily respiration valve and diaphragm to be bonded together, therefore be unfavorable for that gas enters the breather valve valve pocket, namely, cause easily breathing to have some setbacks, thereby increased the danger of using this breather valve.In addition, because in use, respiration valve and diaphragm are bonded together, and in breathing process, gas can make a noise during by diaphragm.

Summary of the invention

The technical problem to be solved in the present invention is to overcome the defects that breather valve of the prior art exists, and therefore, the object of the present invention is to provide a kind of breather valve device, makes patient can keep smooth breathing all the time in the process of long-time this breather valve device of use.

For addressing the above problem, breather valve device of the present invention comprises: valve body has valve pocket; Valve gap, the end relative with patient end that is sealed in described valve pocket located; Air inlet pipe and exhaustor; Diaphragm; Respiration valve, wherein, air inlet pipe is connected in the sidewall of described valve pocket, diaphragm is placed in the air inlet pipe and with air inlet pipe and optionally is communicated with valve pocket, respiration valve be arranged between valve gap and the end and and valve gap between form a space, exhaustor optionally is connected with valve pocket by respiration valve.

Preferably, air inlet pipe on the sidewall between air inlet and the diaphragm, be formed with interface channel, this interface channel extends in the space in the valve gap.

Preferably, be provided with support in air inlet pipe, diaphragm is assemblied on this support.

Preferably, be formed with the cannelure that matches with the shape of respiration valve on the inner surface of valve gap bottom, respiration valve embeds in this cannelure.

Preferably, be formed with recess in the cannelure of valve gap, the through hole of the female section and respiration valve is corresponding and radially stretch in the space.

Preferably, be formed with through hole on the part of the close valve gap sidewall of respiration valve, through hole and interface channel correspond to each other, so that interface channel is connected with space in the valve gap.

Preferably, valve gap has the arc longitudinal section.

Preferably, valve gap is detachable.

According to breather valve device of the present invention, because diaphragm and respiration valve setting separated from one another, even thereby in patient's respiratory, produce water droplet, diaphragm and respiration valve also can not be bonded together, can guarantee the smooth and easy without hindrance of whole breathing circuit, improve the safety of breather valve, also avoided producing when gas is by diaphragm in the breathing process problem of noise simultaneously.

Description of drawings

Accompanying drawing consists of the part of this description, and is used for illustrating principle of the present invention with this description.Wherein:

Fig. 1 is the partial cutaway schematic of breather valve device of the prior art;

Fig. 2 is the axonometric chart according to the breather valve device of the specific embodiment of the invention;

Fig. 3 is the cutaway view according to the breather valve device of the specific embodiment of the invention;

Fig. 4 is the axonometric chart according to the valve gap of the specific embodiment of the invention; And

Fig. 5 is the axonometric chart according to the respiration valve of the specific embodiment of the invention.

The specific embodiment

Below with reference to accompanying drawings, describe the preferred embodiments of the present invention in detail.

Fig. 3 is the cutaway view according to the breather valve device of the specific embodiment of the invention.As can be seen from Figure 3, this breather valve device comprises valve body 10 and valve gap 30.Valve pocket 20 is formed in the valve body 10, end 22 places relative with patient end 90 that valve gap 30 is sealed in valve pocket 20.This breather valve device also comprises with the air inlet pipe 40 that is connected such as source of oxygen and for the exhaustor 50 of discharging breath.In an embodiment of the present invention, diaphragm 60 arranges independently of one another with respiration valve 70.Particularly, air inlet pipe 40 is connected in the sidewall of valve pocket 20, and diaphragm 60 is placed in the air inlet pipe 40 and when air-breathing air inlet pipe 40 is communicated with valve pocket 20.Respiration valve 70 be arranged between valve gap 30 and the valve pocket end 22 and and valve gap 30 between form a space 32.Setting and the prior art of exhaustor 50 are similar, and when exhaling, this exhaustor is communicated with valve pocket 20 by respiration valve 70.

In this embodiment, air inlet pipe 40 is near a side setting relative with patient end 90 of valve pockets 20, diaphragm 60 preferred fit are on support 80, and air inlet pipe 40 be formed with interface channel 44 between air inlet 42 and in it on the sidewall between the accommodating diaphragm 60, this interface channel extends in the space 32 in the valve gap 30.Preferably, be formed with the cannelure 33 (as shown in Figure 4) that matches with the shape of respiration valve 70 on the inner surface of valve gap 30 bottoms, so that respiration valve 70 (being specially the edge of respiration valve) is embedded in the cannelure, thereby before being installed, valve gap 30 just can first respiration valve 70 be inserted in the valve gap easily.Like this, extend into space 32 in order to make interface channel 44, can be formed with through hole 72 (as shown in Figure 5) in the part of the close valve gap sidewall of respiration valve, this through hole and interface channel 44 correspond to each other (as shown in Figure 3).

Particularly, as shown in Figure 4, in order to make interface channel 44 extend into space 32 via the through hole 72 of respiration valve, in the cannelure 33 of valve gap 30, be formed with recess 34, this recess is corresponding with through hole 72 positions and radially pass cannelure 33 sidewalls and stretch in the space 32.Therefore, after breather valve device assembled, the gas of admission passage 44 can enter into space 32 via through hole 72 and recess 34.

In this embodiment, for the ease of forming space 32, valve gap 30 has arc longitudinal section (as schematically illustrated among Fig. 3).Simultaneously, for the ease of loading and unloading diaphragm and respiration valve, this valve gap 30 is set to dismountable form.

Below in conjunction with the work process of accompanying drawing 3 descriptions according to the breather valve device of the specific embodiment of the invention.

When air-breathing, gas such as source of oxygen enters from air inlet pipe 40, part gas can be oppressed diaphragm 60, under the effect of this gas pressure, diaphragm 60 moves to make between diaphragm 60 and the support 80 and the gap occurs, thereby make this portion gas enter valve pocket 20 via this gap, and finally enter patient end 90.Simultaneously, the through hole 72 that another part gas enters interface channel 44 and passes respiration valve 70 enters in valve gap 30 and the respiration valve 70 formed spaces 32, thereby respiration valve 70 is close on the end 22 of valve pocket 20 downwards, guarantee that the part gas that sucks from air inlet pipe in the valve pocket can not leak to exhaustor 50 by respiration valve 70, thereby guarantee patient inhales safety.

When exhaling, under the pressure-acting of exhaled air flow, diaphragm 60 is close on the support 80, has avoided air-flow to escape into air inlet pipe 40 between diaphragm 60 and support 80.Respiration valve 70 moves up under the effect of exhaled air flow, thereby the slit occurs between the end 22 of respiration valve 70 and valve pocket 20, and Exhaled gasesS can be entered in the exhaustor 50 by this slit, thus Exhaled gasesS is discharged.

In according to this embodiment of the invention, by diaphragm 60 and respiration valve 70 are arranged independently of one another, avoided diaphragm in the prior art to bond with respiration valve chance water and the danger of the hypopnea that causes, reduced the noise that diaphragm sends when air-breathing.And, owing to be provided with interface channel 44 and space 32, so that air-breathing more safe and reliable with exhalation process, improved the safety of using breather valve.

Below only be the preferred embodiments of the present invention; be not for restriction the present invention; for a person skilled in the art; the present invention can have various modifications and variations; all any modifications of within the spirit and principles in the present invention scope, making, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. breather valve device comprises:

Valve body (10) has valve pocket (20);

Valve gap (30), the end (22) relative with patient end (90) that is sealed in described valve pocket (20) located;

Air inlet pipe (40) and exhaustor (50);

Diaphragm (60); And

Respiration valve (70),

It is characterized in that, described air inlet pipe (40) is connected in the sidewall of described valve pocket (20), described diaphragm (60) is placed in the described air inlet pipe (40) and with described air inlet pipe (40) and optionally is communicated with described valve pocket (20), described respiration valve (70) be arranged between described valve gap and described end (22) and and described valve gap between form a space (32), described exhaustor (50) optionally is connected with described valve pocket (20) by described respiration valve (70);

Described air inlet pipe (40) on the sidewall between air inlet (42) and the described diaphragm (60), be formed with interface channel (44), described interface channel (44) extends in the described space (32) in the described valve gap (30).

2. breather valve device according to claim 1 is characterized in that, is provided with support (80) in described air inlet pipe (40), and described diaphragm (60) is assemblied on the described support (80).

3. breather valve device according to claim 1, it is characterized in that, be formed with the cannelure (33) that matches with the shape of described respiration valve (70) on the inner surface of described valve gap (30) bottom, described respiration valve (70) embeds in the described cannelure (33).

4. breather valve device according to claim 3, it is characterized in that, be formed with through hole (72) on the part of close described valve gap (30) sidewall of described respiration valve (70), described through hole (72) corresponds to each other with described interface channel (44), is connected with the described space (32) that described interface channel (44) and described valve gap (30) is interior.

5. breather valve device according to claim 4, it is characterized in that, be formed with recess (34) in the cannelure (33) of described valve gap (30), the through hole (72) of the female section (34) and described respiration valve (70) is corresponding and radially stretch in the described space (32).

6. breather valve device according to claim 1 is characterized in that, described valve gap (30) has the arc longitudinal section.

7. breather valve device according to claim 1 is characterized in that, described valve gap (30) is detachable.