CN102266635B

CN102266635B - Positive expiratory end pressure (PEEP) valve and anesthesia machine with same

Info

Publication number: CN102266635B
Application number: CN201010620885.7A
Authority: CN
Inventors: 周兆义
Original assignee: Beijing Aeonmed Co Ltd
Current assignee: Beijing Aeonmed Co Ltd
Priority date: 2010-12-31
Filing date: 2010-12-31
Publication date: 2014-02-26
Anticipated expiration: 2030-12-31
Also published as: CN102266635A

Abstract

The invention provides a positive expiratory end pressure (PEEP) valve and an anesthesia machine with the same. The PEEP valve comprises a first module (1), a second module (2), a valve core (6), a valve core mounting groove (21) and a first air passage (23), wherein a gas pipeline is arranged in the first module (1); the second module (2) is buckled with the first module (1); the valve core (6) is movably arranged in the cavity of the first module (1) and provided with a rolling film (5); the valve core mounting groove (21) is formed in one side of the second module (2) facing the first module (1) and corresponds to the valve core (6); and the first air passage (23) is formed in the second module (2) and used for communicating the valve core mounting groove (21) to a control gas source. Compared with the prior art, the PEEP valve has the advantage of simplicity in structure and installation.

Description

PEEP valve and there is the anesthetic machine of this PEEP valve

Technical field

The present invention relates to Pneumatic valve field, relate in particular to a kind of PEEP valve and there is the anesthetic machine of this PEEP valve.

Background technology

PEEP valve (Positive Expiratory End Pressure) is the usual means of respirator and anesthetic machine, and it is arranged in the integrated package of loop.By PEEP valve, anesthetic machine or respirator can be controlled patient exhales end malleation effectively.

Fig. 1 illustrates the exploded view of a kind of PEEP valve of the prior art, this valve comprises valve body 3 ', core assembly and valve gap 7 ', wherein core assembly by diaphragm 4 ', roll film 5 ' and form for the spool 6 ' of diaphragm 4 ' being installed and being rolled film 5 ', diaphragm 4 ' is stuck in the outside of the lower plate 61 ' of spool 6 ', and the sweep that rolls film 5 ' is contained in the groove 63 ' between spool upper plate 62 ' and lower plate 61 '.Between spool upper plate 62 ' and valve gap 7 ', form a cavity, this cavity is communicated to control air flow source by joint 8 ' and the flexible pipe (not shown) being connected on this joint, like this, controls the opening and closing of spool 6 ' by the variation of this cavity internal gas pressure.Fig. 2 is the schematic diagram of the above-mentioned PEEP valve after assembling.

There is following defect in the PEEP valve of prior art: first, this PEEP valve is an independently valve module, is assembled to inside, loop, and volume is relatively large, the many and processed complex of parts; Secondly, by the above-mentioned mode of communicating of joint 8 ' and flexible pipe, need in folding capsule fixed disk, reserve the more complicated canal path of walking, make the processing of this fixed disk also become complicated; The 3rd, in existing design, valve port (is a part for valve body 3 ' in Fig. 2, the part matching with diaphragm 4 ') be threaded connection valve gap 7 ' above, because need to compress, roll film 5 ', valve body 3 ' must be screwed to bottom and just be seated, therefore, distance between valve port and spool default location is fixed, and when valve is opened, required pressure can not be adjusted, and this just needs very high manufacturing process to guarantee that bulk article is as the concordance of valve block and loop integrated package.

Summary of the invention

The object of the invention is to provide a kind of improved PEEP valve, to overcome nonadjustable defect between existing PEEP valve processed complex, valve port and spool.

PEEP valve according to the present invention comprises: the first module, is wherein provided with gas piping; The second module, is interlocked with the first module; Spool, is arranged in the cavity of the first module movably, is provided with and rolls film on spool; Spool mounting groove, is arranged on the second module towards the one side of the first module, and corresponding with spool; The first air flue, is arranged in the second module, and spool mounting groove is communicated to control source of the gas.

Further, the valve port in PEEP valve is separate part, is arranged in the cavity of the first module, and matches with spool.

Further, this valve port is threaded with the first module.

Further, spool mounting groove center is provided with boss.

Further, on spool lateral surface, have cannelure, roll film and be set on spool by cannelure, the outward flange that rolls film is pressed between the first module and the second module.

The invention still further relates to a kind of anesthetic machine, it comprises above-mentioned PEEP valve, and wherein the first module is the loop integrated package in anesthetic machine, and the second module is the folding fixed disk in anesthetic machine.

The valve seat of PEEP valve of the present invention is not independent parts, but is matched and formed by the first module and the second module, and the main part of PEEP valve is only spool, valve simple in structure.Only spool need to be put into the adapted space of the first and second modules when mounted, install very simple.

Accompanying drawing explanation

The accompanying drawing that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:

Fig. 1 illustrates the exploded view of a kind of PEEP valve of the prior art;

Fig. 2 is the assembly drawing of existing PEEP valve shown in Fig. 1;

Fig. 3 is according to the cutaway view of the PEEP valve of the embodiment of the present invention;

Fig. 4 is the schematic diagram of folding capsule fixed disk for anesthetic machine; And

Fig. 5 shows the scheme of installation of the valve of PEEP shown in Fig. 3.

The specific embodiment

It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.

Fig. 3 to Fig. 5 illustrates an exemplary embodiments of PEEP valve of the present invention, and this valve is as the parts of anesthetic machine.In this example, Fig. 3 is the cutaway view of this PEEP valve, and this valve is for controlling the air-flow velocity from the second air flue 11 to the 3rd air flue 12.Fig. 4 is the schematic diagram of folding capsule fixed disk for anesthetic machine, and Fig. 5 shows the scheme of installation of the valve of PEEP shown in Fig. 3.As shown in the figure, PEEP valve according to the present invention comprises spool 6, valve port 3 and opens the spool mounting groove 21 in folding capsule fixed disk 2, valve port 3 is threaded in loop integrated package 1, by the air-flow with controlling coordinating of spool 6 between the second air flue 11 and the 3rd air flue 12.The double control air chamber that plays a part of mounting groove 21 of spool 6, controls the folding degree between spool 6 and valve port 3 by the size of this control air chamber air pressure.Spool mounting groove 21 is out that bottom center is provided with a boss 24 in folding capsule fixed disk 2, and the gas that this boss is convenient in air flue 23 enters fast mounting groove 21 and evenly to spool 6, exerts pressure.As modification, this boss also can be substituted by miscellaneous part, for example, concaveconvex structure is arranged to in mounting groove 21 bottoms, for example some grooves.Air flue 23 is communicated to PEEP valve control gas hose coupling 10 by mounting groove 21.Control gas hose coupling 10 in Fig. 3 is arranged in the integrated package of loop, and this joint also can be set directly on folding capsule fixed disk 2.

Spool 6 has the cannelure (as 63 ' in Fig. 1) around circumference, roll that film 5 is set in cannelure and near the side towards folding capsule fixed disk 2 of spool 6, the outward flange that rolls film 5 is pressed between loop integrated package 1 and folding capsule fixed disk 2, and spool also has the diaphragm 4 matching with valve port 3.

A kind of most simplify of the present invention, arrange, PEEP valve is only the spool that a band rolls film, and valve seat is the junction of the second air flue 11 and the 3rd air flue 12, is a part for the first module (loop integrated package).In other words, valve port is a part for the second air flue or the 3rd air flue, is fixedly installed in other words between the first air flue and the second air flue, and spool mounting groove is formed in the second module (folding capsule fixed disk), so the processing of PEEP valve and install very simple.In preferably arranging, valve port 3 is threaded in loop integrated package 1, can regulate valve port with respect to the distance of spool default location, to correct the error producing in processing, improves the accuracy of the gas control of PEEP valve.

These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims

1. a PEEP valve, comprising: the first module (1), is provided with gas piping in described the first module (1); The second module (2), is interlocked with described the first module (1); Spool (6), is arranged in the cavity of the first module (1) movably, on described spool (6), is provided with and rolls film (5), it is characterized in that, described PEEP valve also comprises:

Spool mounting groove (21), is arranged on described the second module (2) towards the one side of described the first module (1), and corresponding with described spool (6);

The first air flue (23), is arranged in described the second module (2), and described spool mounting groove (21) is communicated to control source of the gas;

Described the first module (1) is the loop integrated package in anesthetic machine, and described the second module (2) is the folding fixed disk in anesthetic machine.

2. PEEP valve according to claim 1, is characterized in that, the valve port (3) in described PEEP valve is separate part, is arranged in the cavity of described the first module (1), and matches with described spool (6).

3. PEEP valve according to claim 2, is characterized in that, described valve port (3) is threaded with described the first module (1).

4. PEEP valve according to claim 1, is characterized in that, described spool mounting groove (21) center is provided with boss (24).

5. according to the PEEP valve described in any one in claim 1 to 4, it is characterized in that, on described spool (6) lateral surface, there is cannelure, describedly roll film (5) by described cannelure, to be set in described spool (6) upper, described in roll film (5) outward flange be pressed between described the first module (1) and described the second module (2).

6. PEEP valve according to claim 5, is characterized in that, described spool (6) is also provided with the diaphragm (4) matching with described valve port in the side towards valve port (3).

7. an anesthetic machine, is characterized in that, comprises according to the PEEP valve described in any one in claim 1 to 6.