CN101190351A - Synchronization valve device for breathing machine - Google Patents
Synchronization valve device for breathing machine Download PDFInfo
- Publication number
- CN101190351A CN101190351A CNA200610154704XA CN200610154704A CN101190351A CN 101190351 A CN101190351 A CN 101190351A CN A200610154704X A CNA200610154704X A CN A200610154704XA CN 200610154704 A CN200610154704 A CN 200610154704A CN 101190351 A CN101190351 A CN 101190351A
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- valve
- valve cover
- chamber
- shell
- respirator
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Abstract
The invention discloses a synchronous valve apparatus of a ventilator and comprises a valve shell, a valve cover, an air inlet and an air outlet, and the invention is characterized in that the valve shell consists of a front shell and a back shell, and the air inlet of a chamber of the back shell is connected with an external air source, the valve cover that can be rotated and turned over is arranged at an interface position of the other end of the back shell, and the still closure pressure of the valve cover balances inlet pressure; a chamber of the front shell and the chamber of the back shell are closely connected and perforated by the interface of the valve cover, and the air outlet in the front end is connected with an external air transmission tube. As the closure pressure of the valve cover balances inlet pressure, the valve has high opening sensitivity and can satisfy the requirements of being accurately synchronous with breathing rhythm of patients in the status of weak breathing. The invention is applicable for being assembled in household ventilators.
Description
Technical field
The present invention relates to valve.Specifically a kind of respirator is equipped with the breathing synchronization valve device of usefulness.
Background technology
Patient uses respirator must cause respirator positive airway pressure and synchronous.According to data record, three kinds of patterns are arranged: control model (control time or cycle), patient's the frequency of supplying gas is decided by the setting of machine, and patient's aspiratory action can not cause that respirator supplies gas, and the function of the respirator that places one's entire reliance upon.The respirator that fixedly installs is air-breathing keeps (as Bennet MA-1) with exhaling by the adjusting of flow velocity and capacity; Air-breathing coming with the expiratory duration branch is provided with the also frequency of some respirator of may command (as Emerson3-pv); It should be noted that " control model can produce the people, machine is inharmonious ".Auxiliary mode, respirator are wanted to respond to the slight aspiratory action of patient, come perception with the pressure transducer that is arranged on patient and respirator pipeline enclosure, (respirator that has adopts the flow velocity sensor).Auxiliary mode can cause hyperventilation, informs according to another guide: " pressure sensing adapter of annual replacing ".Assist-control bonded pattern, patient has the ability to set up a respiratory frequency, and the frequency that a control model is set is as the backup breaths frequency under the insufficient situation of patient's autonomous mode.Guarantee under this controlled frequency slowly or under the situation about stopping still obtaining enough ventilations at patient respiration.This pattern promptly was used in the various respirators from the sixties, was be respirator pattern commonly used.But comparatively complicated because of its equipment, cost is higher, temporarily also is not easy to patient family and popularizes.It is more suitable for using in medical institutions strictly speaking.
Before this, in Chinese patent 200520101561.7 disclosed domestic physical therapy respirators, the inventor utilizes the adjustable electronic control method, goes the by-pass valve control folding, makes air feed adapt to patient's respiratory frequency.In fact, it still belongs to a kind of of portable construction in the control model.
Summary of the invention
The present invention is the respirator synchronization valve device that a kind of autonomous type will be provided.It can be issued at suitable weak breathing state accurately synchronously.
The present invention is based on equilibrated setting of valve damping and bleed pressure and reduce the switch resistance under the condition as far as possible and satisfy patient and utilize the autonomous respiration by-pass valve control to realize the needs that open and close synchronously.
The synchronization valve device of respirator of the present invention, comprise valve housing, valve cover, air inlet and gas outlet, it is characterized in that: said valve housing is combined by procapsid and back casing, the external source of the gas of the air inlet of back casing chamber, the port of the other end is provided with the rotatable valve cover that stirs, the stationary cover resultant pressure of valve cover balances each other with admission pressure: seal between the chamber of procapsid chamber and back casing and be connected, and before and after the valve cover port connects, the external appendix in the gas outlet of front end.
The procapsid chamber cross section at described valve cover place is square.
Described back casing port is provided with and acts on the valve cover, makes it the power assistant spring used with the admission pressure balance.
Respirator synchronization valve device of the present invention has following good effect:
1), simple in structure.
2), because the static pressure and the admission pressure of valve cover balances each other, valve opening is highly sensitive, can be accurately synchronous with patient's breath rhythm.
3), the air-flow normal pressure in the back casing chamber is located on the magnitude of 0.5KPa, the inspiratory driving pressure power of operate as normal is little, practical probation shows, can not produce the sense of feeling suffocated.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is provided with the respirator synchronization valve device structural representation of balance with power assistant spring.
Fig. 3 is a kind of structural representation of valve cover.
The specific embodiment
Be further described below in conjunction with embodiment and accompanying drawing thereof.
Referring to accompanying drawing.
Shown in Figure 1 is the structural representation of respirator synchronization valve device embodiment.
It comprises valve housing, valve cover 3, air inlet 6 and gas outlet 5, said valve housing is combined by procapsid 2 and back casing 1, the air inlet 6 external sources of the gas of back casing 1, the port of the other end is provided with the rotatable valve cover that stirs 3, the stationary cover resultant pressure of valve cover balances each other with admission pressure: seal between the chamber of procapsid chamber and back casing and be connected, and before and after the valve cover port connects, the gas outlet 5 external appendixs of front end.The malleation that the source of the gas air-flow arrives air inlet is provided with scalable between 0.35～0.9KPa.4 are provided in a side of the anterodorsal balancing weight of valve cover.The procapsid chamber cross section at valve cover 3 places is square.The square-section section helps the aperture of intensifying valve lid.
Respirator synchronization valve device of the present invention, work process is summarized as follows:
This device is installed as figure mode horizontal.Through being adjusted to the clossing pressure and the bleed pressure balance of valve cover, source of the gas is the malleation fresh air, also can oxygenation.Its gas outlet is transported to nose cup with appendix, perhaps arrives patient's upper respiratory tract.
(1), after the start, the patient makes aspiratory action, valve cover left side be a negative pressure, under the promotion of source of the gas malleation, opens valve gap, fresh air flows to the gas outlet, enters appendix, and then is suction.Persistent period decides with inspiratory duration.
(2), when autonomous inspiratory flow rate is reduced to the certain proportion of the highest inspiratory flow rate, because of the gravity inertial of valve cover falls automatically, perhaps under the effect of the restoring force of power assistant spring, with valve closing;
(3), during patient exhales, the generation malleation in the nose cup appendix makes valve cover maintain closed condition, the time of closing decides with expiratory duration.When the patient was air-breathing once more, again rapidly with valve open, the cycle of operation of going round and beginning again made the work rhythm of valve fully consistent with patient's autonomous respiration rhythm, realizes accurately synchronously.
Shown in Figure 2 is an alternative embodiment of the invention.Consider the variation of design of miniization and use location, be provided with in the back casing port and act on the valve cover, make it the power assistant spring of using with the admission pressure balance 7.This power assistant spring work covers valve cover, opens voluntarily with the air-flow barotropic equilibrium and don't when changing because of the orientation, and corresponding valve cover is lighter, balancing weight can, perhaps shift to the back at the valve cover back side.
This power assistant spring 7 is a monofilament structure.Also can be other version, as sheet spring, perhaps stage clip.
In the valve cover structural representation shown in Figure 3,8 is lid, the 9th, and composite membrane cloth is fixed on the round frame 10 of lid, and the inner face of frame is provided with cap seal better elastic circle pad.It is installed on the foot-supporting frame 11 of back casing port tube outer wall.
Claims (3)
1. the synchronization valve device of a respirator, comprise valve housing, valve cover (3), air inlet (6) and gas outlet (5), it is characterized in that: said valve housing is combined by procapsid (2) and back casing (1), the external source of the gas of the air inlet of back casing chamber (6), the port of the other end is provided with the rotatable valve cover that stirs (3), the stationary cover resultant pressure of valve cover balances each other with admission pressure: seal between the chamber of procapsid chamber and back casing (6) and be connected, and before and after the valve cover port connects, the external appendix in the gas outlet of front end (5).
2. according to the synchronization valve device of the described respirator of claim 1, it is characterized in that the procapsid chamber cross section at said valve cover (3) place is square.
3. according to the synchronization valve device of the described respirator of claim 1, it is characterized in that said back casing (6) port is provided with to act on the valve cover, make it the power assistant spring (7) used with the admission pressure balance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200610154704XA CN101190351A (en) | 2006-11-21 | 2006-11-21 | Synchronization valve device for breathing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200610154704XA CN101190351A (en) | 2006-11-21 | 2006-11-21 | Synchronization valve device for breathing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101190351A true CN101190351A (en) | 2008-06-04 |
Family
ID=39485645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200610154704XA Pending CN101190351A (en) | 2006-11-21 | 2006-11-21 | Synchronization valve device for breathing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101190351A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110237394A (en) * | 2019-06-17 | 2019-09-17 | 吉林大学第一医院 | A kind of synchronization valve device of ventilator |
-
2006
- 2006-11-21 CN CNA200610154704XA patent/CN101190351A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110237394A (en) * | 2019-06-17 | 2019-09-17 | 吉林大学第一医院 | A kind of synchronization valve device of ventilator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: HE SHUILIAN Free format text: FORMER OWNER: PAN GUANLIANG Effective date: 20090626 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20090626 Address after: No. 18 Jin Xin Road, Chiang Nan village, deer Hill Street, Zhejiang, Fuyang Applicant after: He Shuilian Address before: Tai Ping Street building, the Fuchun River Town, Tonglu County, Hangzhou City, Zhejiang province 5-205 Applicant before: Pan Guanliang |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080604 |