CN102266635A

CN102266635A - Positive expiratory end pressure (PEEP) valve and anesthesia machine with same

Info

Publication number: CN102266635A
Application number: CN2010106208857A
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: 2011-12-07
Anticipated expiration: 2030-12-31
Also published as: CN102266635B

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 have the anesthetic machine of this PEEP valve

Technical field

The present invention relates to the Pneumatic valve field, relate in particular to a kind of PEEP valve and have 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 installed in the integrated package of loop.By the 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 the spool 6 ' that is used to install diaphragm 4 ' and rolls film 5 ' constitutes, 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 the lower plate 61 '.Form a cavity between spool upper plate 62 ' and valve gap 7 ', this cavity is communicated to the control air flow source by joint 8 ' and the flexible pipe (not shown) that is connected on this joint, like this, controls the unlatching and the closure of spool 6 ' by the variation of this cavity internal gas pressure.Fig. 2 is the sketch map of the above-mentioned PEEP valve after the assembling.

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

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

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

Further, this valve port is threaded with first module.

Further, spool mounting groove center is provided with boss.

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

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

The valve seat of PEEP valve of the present invention is not independent parts, forms but matched by first module and second module, and the main part of PEEP valve only is a spool, valve simple in structure.The adapted space that only spool need be put into first and second modules when mounted gets final product, and installs very simple.

Description of drawings

The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification 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 Figure 1;

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

Fig. 4 is the sketch map of anesthetic machine with folding capsule fixed disk; And

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

The specific embodiment

Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments 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 the air-flow velocity that is used to control from second air flue, 11 to the 3rd air flues 12.Fig. 4 is the sketch map of anesthetic machine with folding capsule fixed disk, and Fig. 5 shows the scheme of installation of PEEP valve shown in Figure 3.As shown in the figure, PEEP valve according to the present invention comprises spool 6, valve port 3 and opens spool mounting groove 21 in folding capsule fixed disk 2, valve port 3 is threaded in the loop integrated package 1, by with the air-flow of controlling cooperating of spool 6 between second air flue 11 and the 3rd air flue 12.The mounting groove 21 double control air chambers that play a part of spool 6 are by the size control spool 6 of this control air chamber air pressure and the folding degree between the valve port 3.Spool mounting groove 21 is out that bottom center is provided with a boss 24 in folding capsule fixed disk 2, and this boss is convenient to gas in the air flue 23 and is entered mounting groove 21 fast and evenly exert pressure to spool 6.As modification, this boss also can be substituted by miscellaneous part, for example concaveconvex structure is arranged in mounting groove 21 bottoms, for example some grooves.Air flue 23 is communicated to PEEP valve control gas hose coupling 10 with 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 the folding capsule fixed disk 2.

Spool 6 has the cannelure (as 63 ' among Fig. 1) around circumference, roll that film 5 is set in the 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 the folding capsule fixed disk 2, and spool also has the diaphragm 4 that matches with valve port 3.

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

Be the preferred embodiments of the present invention only below, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. PEEP valve, comprising: first module (1) is provided with gas piping in described first module (1); Second module (2) is interlocked with described first module (1); Spool (6) is arranged in the cavity of first module (1) movably, and 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 the one side of described second module (2) towards described first module (1), and corresponding with described spool (6);

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

2. PEEP valve according to claim 1 is characterized in that, the valve port (3) in the described PEEP valve is a separate part, is arranged in the cavity of described 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 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 each described PEEP valve in the claim 1 to 4, it is characterized in that, has cannelure on described spool (6) lateral surface, the described film (5) that rolls is set on the described spool (6) by described cannelure, and the described outward flange that rolls film (5) is pressed between described first module (1) and described second module (2).

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

7. an anesthetic machine is characterized in that, comprises that wherein said first module (1) is the loop integrated package in the anesthetic machine according to each described PEEP valve in the claim 1 to 6, and described second module (2) is the folding fixed disk in the anesthetic machine.