CN202666153U - Positive end-expiratory pressure valve pressure control structure - Google Patents
Positive end-expiratory pressure valve pressure control structure Download PDFInfo
- Publication number
- CN202666153U CN202666153U CN 201220188944 CN201220188944U CN202666153U CN 202666153 U CN202666153 U CN 202666153U CN 201220188944 CN201220188944 CN 201220188944 CN 201220188944 U CN201220188944 U CN 201220188944U CN 202666153 U CN202666153 U CN 202666153U
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- valve
- peep
- pressure
- cavity
- exhalation
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Abstract
The utility model discloses a positive end-expiratory pressure valve pressure control structure which comprises an exhalation valve (3), a proportional valve installing seat (5), a flow proportional valve (6), a current-limiting capillary copper pipe (2), and a pressure sensor (1), wherein three connecting ends are arranged on the exhalation valve (3), one end of the proportional valve installing seat (5) is connected with an air outlet connecting end in a positive end expiratory pressure (PEEP) cavity of the exhalation valve (3), the flow proportional valve (6) is arranged on the proportional valve installing seat (5), the current-limiting capillary copper pipe (2) is connected with an air inlet connecting end in the PEEP cavity of the exhalation valve (3), and a third outlet is arranged in the PEEP cavity of the exhalation valve (3) and is connected with the pressure sensor (1). Fixed low flow and pressure are input into the PEEP cavity of the exhalation valve (3), and the flow proportional valve (6) is used to control the size of the caliber of an exhaust outlet in the PEEP cavity to achieve changing of magnitude of pressure of the PEEP so that requirements for matching of the flow proportional valve (6) and hardware platform are correspondingly reduced. The pressure sensor (1) is directly connected in the PEEP cavity so as to quickly transmit pressure changes in the cavity to a main machine, and therefore reliability is improved.
Description
Technical field
This utility model relates to (respirator is to belong to III kind equipment in the medical apparatus and instruments) very important safety component in a kind of respirator, be specifically related to end expiratory positive pressure (posit ive end-expiratory pressure, the PEEP) valve control system for respirator and anesthetic machine.
Background technology
Respirator and anesthetic machine make air flue still keep certain malleation by the PEEP valve at the end of exhaling, alveolar is unlikely complete atrophy, the alveolar that the alveolar that withers is enlarged and do not open is opened again, thereby can increase the compliance of functional residual capacity and lung, is conducive to oxygen by exhaling the film disperse.Therefore, PEEP can effectively accelerate repair process by improving oxygenate, avoids damaging lung tissue, for Comprehensive Treatment wins chance, so have the important performance indications that the PEEP function has become China's medical breathing machine.The pressure of PEEP increases to 0.98kPa (10cmH2O) gradually from low-level 0.29-0.49kPa (3-5cmH20), generally should not surpass 1.96kPa (20cmH2O).Accomplish that in so little scope fine adjustment and fast reaction are exactly a great problem.Existing PEEP valve pressure control has two classes: the direct usage ratio electric magnet of class band dynamic diaphragm, and another kind of use traffic proportional solenoid Indirect driven diaphragm wherein also has modification to use, and stability and reliability and hysteresis are still waiting to determine.
The utility model content
The end expiratory positive pressure valve pressure control structure that solves the pressure controlled fast reaction of PEEP valve and fine adjustment and reduce lag time is provided to provide under a kind of considering not increasing the respirator cost the purpose of this utility model.
For solving the problems of the technologies described above, this utility model end expiratory positive pressure valve pressure control structure comprises: exhalation valve is provided with three links in described exhalation valve PEEP chamber; The proportioning valve mount pad, an end of described proportioning valve mount pad is connected with the link of giving vent to anger of described exhalation valve PEEP cavity; Flow proportion valve, described flow proportion valve are installed on the described proportioning valve mount pad; The current limliting capillary brass pipe, described current limliting capillary brass pipe is connected with the air inlet link of described exhalation valve PEEP cavity; Be provided with the 3rd outlet in the described exhalation valve PEEP cavity, be connected with pressure transducer.
The PEEP chamber of described proportioning valve mount pad and described exhalation valve is by hose connection, and described pressure transducer directly is connected by flexible pipe with the PEEP chamber of described exhalation valve.Described flow proportion valve is installed on the described proportioning valve mount pad by the valve hold-down screw.Hydraulic quick coupler at described proportioning valve mount pad.
The distinguishing feature of this utility model end expiratory positive pressure valve pressure control structure be design very simple, in traditional structure, only increase a pressure transducer, on cost, can ignore, this sensor is connected a port of export with flexible pipe and is connected with exhalation valve PEEP intracavity, directly measure the pressure of PEEP intracavity, can very fast feedback data, like this can fast reaction, regulate PEEP pressure, shorten lag time, improved the reliability of respirator.
Description of drawings
Fig. 1 is this utility model end expiratory positive pressure valve pressure control structure structure explosive view;
Fig. 2 is this utility model end expiratory positive pressure valve pressure control structure assembling sketch map;
Fig. 3 is this utility model end expiratory positive pressure valve pressure control structure assembling generalized section;
Fig. 4 is this utility model end expiratory positive pressure valve pressure control structure schematic diagram of gas circuit;
Description of reference numerals in this utility model end expiratory positive pressure valve pressure control structure accompanying drawing:
1-pressure transducer 2-current limliting capillary brass pipe 3-exhalation valve 4-the first hydraulic quick coupler
5-proportioning valve mount pad 6-flow proportion valve 7-valve hold-down screw 8-the second hydraulic quick coupler
The specific embodiment
Below in conjunction with accompanying drawing this utility model end expiratory positive pressure valve pressure control structure is described in further detail.
Such as Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, this utility model end expiratory positive pressure valve pressure control structure, comprise: current limliting capillary brass pipe 2, exhalation valve 3 and proportioning valve mount pad 5, two hydraulic quick couplers are installed on the proportioning valve mount pad 5, be connected with exhalation valve PEEP chamber by flexible pipe, the periphery of current limliting capillary brass pipe 2 is the double-deck barb of Pagoda-shaped, can closely be connected by flexible pipe with exhalation valve PEEP chamber inlet end.Flow proportion valve 6 is installed on the proportioning valve mount pad 5 by valve hold-down screw 7, in the air inlet of proportioning valve mount pad 5 and the two ends of giving vent to anger the first hydraulic quick coupler 4 and the second hydraulic quick coupler 8 is installed all.Exhalation valve 3PEEP intracavity also has an outlet, and is hose connection with pressure transducer 1.
The distinguishing feature of this utility model end expiratory positive pressure valve pressure control structure be design very simple, in traditional structure, only increase a pressure transducer, pressure transducer directly is fixed on the pcb board, on cost, can ignore, this sensor is connected a port of export with flexible pipe and is connected with exhalation valve PEEP intracavity, directly measure the pressure of PEEP intracavity, there is not unnecessary cavity, can very fast feedback data, can allow like this respirator control of correspondent program react fast, regulate PEEP pressure, shorten lag time, improved the reliability of respirator.
The preferred embodiment of below this utility model having been created specifies, but this utility model is created and is not limited to described embodiment, those of ordinary skill in the art also can make all modification that is equal to or replacement under the prerequisite of this utility model creative spirit, the modification that these are equal to or replacement all are included in the application's claim limited range.
Claims (4)
1. end expiratory positive pressure valve pressure control structure comprises:
Exhalation valve is provided with three links at described exhalation valve;
The proportioning valve mount pad, an end of described proportioning valve mount pad is connected with the link of giving vent to anger of described exhalation valve PEEP cavity;
Flow proportion valve, described flow proportion valve are installed on the described proportioning valve mount pad;
The current limliting capillary brass pipe, described current limliting capillary brass pipe is connected with the air inlet link of described exhalation valve PEEP cavity;
It is characterized in that, be provided with the 3rd outlet in the described exhalation valve PEEP cavity, be connected with pressure transducer.
2. end expiratory positive pressure valve pressure control structure according to claim 1 is characterized in that, the PEEP chamber of described proportioning valve mount pad and described exhalation valve is by hose connection, and described pressure transducer directly is connected by flexible pipe with the PEEP chamber of described exhalation valve.
3. end expiratory positive pressure valve pressure control structure according to claim 1 is characterized in that, described flow proportion valve is installed on the described proportioning valve mount pad by the valve hold-down screw.
4. end expiratory positive pressure valve pressure control structure according to claim 1 is characterized in that, the second hydraulic quick coupler on described proportioning valve mount pad directly leads in atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220188944 CN202666153U (en) | 2012-04-27 | 2012-04-27 | Positive end-expiratory pressure valve pressure control structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220188944 CN202666153U (en) | 2012-04-27 | 2012-04-27 | Positive end-expiratory pressure valve pressure control structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202666153U true CN202666153U (en) | 2013-01-16 |
Family
ID=47487094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220188944 Expired - Lifetime CN202666153U (en) | 2012-04-27 | 2012-04-27 | Positive end-expiratory pressure valve pressure control structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202666153U (en) |
-
2012
- 2012-04-27 CN CN 201220188944 patent/CN202666153U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130116 |