CN101584898A - Method for adjusting concentration of oxygen output by respirator - Google Patents
Method for adjusting concentration of oxygen output by respirator Download PDFInfo
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- CN101584898A CN101584898A CNA2008101126942A CN200810112694A CN101584898A CN 101584898 A CN101584898 A CN 101584898A CN A2008101126942 A CNA2008101126942 A CN A2008101126942A CN 200810112694 A CN200810112694 A CN 200810112694A CN 101584898 A CN101584898 A CN 101584898A
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- air
- oxygen
- air intlet
- intlet
- control device
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Abstract
The invention discloses a method for adjusting the concentration of oxygen output by a respirator, which comprises the steps of: utilizing a valve, and arranging a control device for adjusting the size of an air inlet on the air inlet, wherein the valve comprises an air inlet nozzle, the air inlet and an air outlet; and inputting high-pressure oxygen through the air inlet nozzle to produce negative pressure, sucking air in the atmosphere to generate mixed gas of the air and the oxygen, adjusting the size of the air inlet through the control device, and controlling the flow of the sucked air so as to change the oxygen concentration of output gas.
Description
Technical field
The present invention relates to a kind of adjusting and control method of medical ventilator concentration of oxygen output.
Background technology
Respirator is mainly used in treatment respiratory failure patient clinically, and its operation principle is to utilize the auxiliary by force patient respiration of gases at high pressure.The gas oxygen concentration height that patient sucks has a direct impact therapeutic effect, and can regulating patient, to suck the oxygen concentration of gas significant.Present method is to utilize oxygen and two kinds of gases at high pressure of air by an empty oxygen mixing device, by changing the matched proportion density of two kinds of gases, regulates the oxygen concentration of output gas, and its precondition is that two kinds of gases at high pressure---oxygen and air must be arranged.This regulative mode is comparatively complicated, and operation not too easily.
Summary of the invention
The object of the present invention is to provide a kind of regulative mode simply, the control method of oxygen concentration flexibly.
Method of the present invention comprises:
(1) provide a valve, this valve comprises a nozzle of air supply, an air intlet and a gas outlet, and the control device of regulating the import size is set at the air intlet place;
(2) from nozzle of air supply input high pressure oxygen, the negative pressure of utilizing high pressure oxygen when nozzle sprays, to produce, the air from air intlet suction atmosphere, and and oxygen mix;
(3), regulate the size of air intlet, thereby regulate the amount that is inhaled into air by the air intlet control device;
(4) oxygen mixes the mist that forms and exports from the gas outlet with air.
The negative pressure that this device produces when utilizing high pressure oxygen by an aperture nozzle, air in the negative pressure suction atmosphere generates the mist of air and oxygen, a control device is set at the air intlet place, regulate the size of air intlet, can control the flow that sucks air by control device, thereby change the oxygen concentration of output gas.The present invention can not use pressure-air, only with a kind of high pressure oxygen, realizes the adjustable purpose of oxygen concentration of output gas, and method is simple, processing ease.
Description of drawings
Fig. 1 is a schematic diagram of gas circuit of the present invention
Fig. 2 is the structure principle chart of Application Example of the present invention
The specific embodiment
Fig. 1 is a schematic diagram of gas circuit of the present invention.Among Fig. 1, described valve is a Wen Qiuli valve, and this valve comprises a nozzle of air supply, an air intlet and a gas outlet; High pressure oxygen is imported from nozzle of air supply, and high pressure oxygen can produce negative pressure when nozzle sprays, the air from air intlet suction atmosphere, and and oxygen mix, the mist of formation is exported from the gas outlet.Be provided with the control device of regulating the import size at the air intlet place; By this air intlet control device, the size that can regulate air intlet, thus regulate the amount that is inhaled into air, and then regulate the oxygen concentration in the mist.
For further specifying method of the present invention, describe below in conjunction with an embodiment who uses the inventive method.Fig. 2 is the structure principle chart of an Application Example of the present invention.When high pressure oxygen enters nozzle 3, produce negative pressure near nozzle 3, negative pressure sucks the air in the atmosphere from air intlet, produces empty oxygen gas mixture from air vent 2 outputs; In the present embodiment, the control device at air intlet place is a splitter 1, on the splitter 1 pore is arranged, air is inhaled into by this pore, rotate splitter 1 and can adjust the sectional area of air intlet, change the air inhalation flow, thereby realize the purpose that air vent 2 oxygen concentrations are regulated.
Further, the present invention can be on the basis of the foregoing description, near air intlet, establish an oxygen compensating port again, described splitter is controlled air intlet and oxygen compensating port simultaneously, but the arrangement mode of the pore of the pore of control air intlet and control oxygen compensating port is opposite on the splitter, that is, when air intlet was big more, the oxygen compensating port was more little; When air intlet more hour, the oxygen compensating port is big more.Rotate splitter 1 and can adjust the sectional area of air suction inlet and the sectional area of oxygen compensating port simultaneously, air sucks many more, and the oxygen compensation is few more, and air sucks few more, oxygen compensation is many more, can make not only scalable but also keep constant flow of air vent 2 oxygen concentrations like this.
Claims (3)
1, a kind of method of regulating concentration of oxygen output by respirator is characterized in that:
(1) provide a valve, this valve comprises a nozzle of air supply, an air intlet and a gas outlet, and the control device of regulating the air intlet size is set at the air intlet place;
(2) from nozzle of air supply input high pressure oxygen, the negative pressure of utilizing high pressure oxygen when nozzle sprays, to produce, the air from air intlet suction atmosphere, and and oxygen mix;
(3), regulate the size of air intlet, thereby regulate the amount that is inhaled into air by the air intlet control device;
(4) oxygen mixes the mist that forms and exports from the gas outlet with air.
2, method according to claim 1 is characterized in that: described air intlet control device is a splitter, and pore is arranged on the splitter.
3, method according to claim 2, it is characterized in that: be provided with an oxygen compensating port near the described air intlet, described splitter is controlled air intlet and oxygen compensating port simultaneously, and the pore of control air intlet is opposite with the arrangement mode of the pore of control oxygen compensating port on the splitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101126942A CN101584898A (en) | 2008-05-23 | 2008-05-23 | Method for adjusting concentration of oxygen output by respirator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101126942A CN101584898A (en) | 2008-05-23 | 2008-05-23 | Method for adjusting concentration of oxygen output by respirator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101584898A true CN101584898A (en) | 2009-11-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101126942A Pending CN101584898A (en) | 2008-05-23 | 2008-05-23 | Method for adjusting concentration of oxygen output by respirator |
Country Status (1)
| Country | Link |
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| CN (1) | CN101584898A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104958817A (en) * | 2015-07-15 | 2015-10-07 | 深圳市安保科技有限公司 | Air and oxygen mixing device and method for respirator |
| CN107519562A (en) * | 2017-02-10 | 2017-12-29 | 钱家杰 | Lung ventilator air-flow output control method |
| CN110354356A (en) * | 2014-05-27 | 2019-10-22 | 费雪派克医疗保健有限公司 | Gas mixing and measurement for medical device |
-
2008
- 2008-05-23 CN CNA2008101126942A patent/CN101584898A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110354356A (en) * | 2014-05-27 | 2019-10-22 | 费雪派克医疗保健有限公司 | Gas mixing and measurement for medical device |
| CN104958817A (en) * | 2015-07-15 | 2015-10-07 | 深圳市安保科技有限公司 | Air and oxygen mixing device and method for respirator |
| CN107519562A (en) * | 2017-02-10 | 2017-12-29 | 钱家杰 | Lung ventilator air-flow output control method |
| CN107519562B (en) * | 2017-02-10 | 2019-01-11 | 浙江大学 | Ventilator air-flow output control system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20091125 |