CN103083775A - Expiratory valve, respirator and heating method of expiratory valve - Google Patents
Expiratory valve, respirator and heating method of expiratory valve Download PDFInfo
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- CN103083775A CN103083775A CN2011103382057A CN201110338205A CN103083775A CN 103083775 A CN103083775 A CN 103083775A CN 2011103382057 A CN2011103382057 A CN 2011103382057A CN 201110338205 A CN201110338205 A CN 201110338205A CN 103083775 A CN103083775 A CN 103083775A
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- outlet valve
- heater strip
- valve
- respirator
- hydrops
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Abstract
The invention provides an expiratory valve, a respirator and a heating method of the expiratory valve. A heating wire (20) is wound on the outer surface of a valve body (10) of the expiratory valve. By the expiratory valve, the respirator and the heating method, the problem that sensor accuracy is affected due to the fact that an expiratory valve in the prior art has accumulated water is solved.
Description
Technical field
The present invention relates to the outlet valve technical field, in particular to the heating means of a kind of outlet valve, respirator and outlet valve.
Background technology
Outlet valve is the core component on medical breathing machine, and the effect of outlet valve is to coordinate with patient's suction, expiration beat, when patient inhales, outlet valve cuts out, during expiration, outlet valve is opened, and also realizes respirator PCV (level pressure is controlled ventilation) pattern in conjunction with control algolithm with it simultaneously.
And for respirator, the expiration tidal volume is a very important parameter in ventilator parameter, the expiration tidal volume of respirator is that the data by the sensor acquisition outlet valve are calculated and got, and the type sensor is the air differential pressure sensor, is widely used in the medical ventilator field.But if there is condensed water to occur in pipeline, the vapour lock of pipeline will increase, and has a strong impact on the certainty of measurement of sensor, causes the expiration tidal volume monitoring numerical value of respirator inaccurate.
Outlet valve of the prior art generally adopts the semiconductor medium heating, and heats is not obvious, and seeping phenomenon is arranged in outlet valve, affects the certainty of measurement of sensor, causes the tidal volume monitoring of respirator inaccurate.
Summary of the invention
The present invention aims to provide the heating means of a kind of outlet valve, respirator and outlet valve, thereby has hydrops to affect the problem of sensor accuracy to solve in prior art in outlet valve.
To achieve these goals, according to an aspect of the present invention, provide a kind of outlet valve, be wound with heater strip on the valve outer surface of outlet valve.
Further, heater strip is connected with the valve body of outlet valve by securing member.
Further, securing member is clip.
Further, the lead-out wire of heater strip is connected with dc source.
Further, heater strip is wound around to the direction of gas outlet equably along the air inlet of outlet valve.
Further, outlet valve of the present invention also comprises: sensor is connected with valve body.
According to a further aspect in the invention, provide a kind of respirator, had above-mentioned outlet valve.
According to a further aspect in the invention, provide a kind of heating means of outlet valve, comprised the following steps: the water yield that obtains hydrops according to the hydrops degree of outlet valve is heated to form the needed heat of steam; Select heater strip as the heater of outlet valve; Obtain the Len req of heater strip according to the resistance of heat and heater strip; The heater strip of Len req is wrapped on the valve outer surface of outlet valve.
Further, the hydrops degree of outlet valve obtains by emulation Use of respirator state and humidifier simulation.
Further, further comprising the steps of after the heater strip with length is wrapped in step on the valve outer surface of outlet valve: the operation respirator takes off expiratory valve after a period of time, checks whether the inside of outlet valve exists hydrops; If there is hydrops, increase the length of heater strip until there is not hydrops in the inside of outlet valve.
Use technical scheme of the present invention, be wound with heater strip on the valve outer surface of outlet valve, utilize heater strip to heat to outlet valve, make heating directly and evenly, like this, the wet gas that patient breathes out through the heater strip heating after, can condensation in the outlet valve valve body, the certainty of measurement of sensor has obtained effective assurance, thereby has solved the inaccurate problem of tidal volume of respirator.Simultaneously, heater strip is cheap, has effectively saved cost.
Description of drawings
The Figure of description that consists of the application's a part is used to provide a further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 shows the structural representation according to the embodiment of outlet valve of the present invention; And
Fig. 2 shows the schematic flow sheet according to the heating means of outlet valve of the present invention.
The specific embodiment
Need to prove, in the situation that do not conflict, embodiment and the feature in embodiment in the application can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
Fig. 1 shows the structural representation according to the embodiment of outlet valve of the present invention.As shown in Figure 1, as can be seen from the figure, be wound with heater strip 20 on valve body 10 outer surfaces of the outlet valve of the present embodiment.
Preferably, heater strip 20 is connected with the valve body 10 of outlet valve by securing member.The effect of this securing member is heater strip 20 to be fixed on valve body 10 surfaces of outlet valve, and this securing member is preferably clip.The lead-out wire of heater strip 20 is connected with dc source, utilizes dc source to heater strip 20 power supplies.
Preferably, heater strip 20 is wound around to the direction of gas outlet equably along the air inlet of outlet valve, and certainly, it should be noted that also needs to dodge other projecting member in the coiling process.
The outlet valve of the present embodiment also comprises: the sensor 30 that is connected with valve body 10.Sensor 30 is connected with valve body 10 by pipeline, is used for the parameter measurement of valve body 10 inside, such as gas tidal volume, gas flow, gas flow rate etc.
The present invention also provides a kind of respirator, has above-mentioned outlet valve, and the miscellaneous part of this respirator sees also prior art, does not repeat them here.
Fig. 2 shows the schematic flow sheet according to the heating means of outlet valve of the present invention.As shown in Figure 2, the heating means of the outlet valve of the present embodiment comprise the following steps:
S10: the water yield that obtains hydrops according to the hydrops degree of outlet valve is heated to form the needed heat of steam.
Preferably, the hydrops degree of outlet valve obtains by emulation Use of respirator state and humidifier simulation.In said process, also need to use the heat exchange formula, calculate the water yield in conjunction with the material medium of outlet valve and be heated to form the required heat of steam.
S20: select heater strip as the heater of outlet valve.
S30: the Len req that obtains heater strip according to the resistance of heat and heater strip.Preferably, by needed heat Calculation power, in conjunction with the respirator hardware circuit, calculate electric current and heater strip length.
S40: the heater strip of Len req is wrapped on valve body 10 outer surfaces of outlet valve.Because heater strip has larger resistance value, can convert electric energy to heat energy.
To utilize the outlet valve that said method obtains to be arranged on respirator, start respirator after a few minutes, outlet valve be heated to steady temperature, and at this moment available temperature measurer detects the heating-up temperature of outlet valve.
Continuous service respirator long enough takes off expiratory valve after the time, checks whether outlet valve inside exists hydrops.If there is hydrops, increase the length of heater strip until there is not hydrops in the inside of outlet valve.
In a kind of preferred embodiment, Shangrila590 series medical breathing machine outlet valve adopts the heater strip heating.Heater strip is wrapped on outlet valve equably, and the wet gas that patient breathes out arrives outlet valve through pipeline, does not have condensation just to discharge from the respirator exhalation vents through wet gas after the heater strip heating.Facts have proved, hydrops appearance never again in outlet valve, the inaccurate problem of respirator tidal volume has obtained effective solution.
The above is only the preferred embodiments of the present invention, is not limited to the present invention, and 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 (10)
1. an outlet valve, is characterized in that, is wound with heater strip (20) on the valve body of described outlet valve (10) outer surface.
2. outlet valve according to claim 1, is characterized in that, described heater strip (20) is connected with the valve body (10) of described outlet valve by securing member.
3. outlet valve according to claim 2, is characterized in that, described securing member is clip.
4. outlet valve according to claim 1, is characterized in that, the lead-out wire of described heater strip (20) is connected with dc source.
5. outlet valve according to claim 1, is characterized in that, described heater strip (20) is wound around to the direction of gas outlet equably along the air inlet of described outlet valve.
6. outlet valve according to claim 1, is characterized in that, also comprises: sensor (30) is connected with described valve body (10).
7. a respirator, have outlet valve, it is characterized in that, described outlet valve is the described outlet valve of any one in claim 1 to 6.
8. the heating means of an outlet valve, is characterized in that, comprises the following steps:
The water yield that obtains hydrops according to the hydrops degree of described outlet valve is heated to form the needed heat of steam;
Select heater strip as the heater of described outlet valve;
Obtain the Len req of described heater strip according to the resistance of described heat and described heater strip;
The heater strip of described Len req is wrapped on valve body (10) outer surface of described outlet valve.
9. heating means according to claim 8, is characterized in that, the hydrops degree of described outlet valve obtains by emulation Use of respirator state and humidifier simulation.
10. according to claim 8 or 9 described heating means, is characterized in that, and are further comprising the steps of after the heater strip with described length is wrapped in step on valve body (10) outer surface of described outlet valve:
The operation respirator takes off expiratory valve after a period of time, checks whether the inside of described outlet valve exists hydrops;
If there is hydrops, increase the length of described heater strip until there is not hydrops in the inside of described outlet valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103382057A CN103083775A (en) | 2011-10-31 | 2011-10-31 | Expiratory valve, respirator and heating method of expiratory valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103382057A CN103083775A (en) | 2011-10-31 | 2011-10-31 | Expiratory valve, respirator and heating method of expiratory valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103083775A true CN103083775A (en) | 2013-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103382057A Pending CN103083775A (en) | 2011-10-31 | 2011-10-31 | Expiratory valve, respirator and heating method of expiratory valve |
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| CN (1) | CN103083775A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104784792A (en) * | 2015-04-03 | 2015-07-22 | 深圳市科曼医疗设备有限公司 | Breathing machine and moisture removing air path system thereof |
| CN111905207A (en) * | 2020-07-14 | 2020-11-10 | 深圳市普博科技有限公司 | Breathing machine |
Citations (12)
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|---|---|---|---|---|
| US4727871A (en) * | 1985-10-28 | 1988-03-01 | Infrasonics, Inc. | Ventilator exhalation system |
| CN2057353U (en) * | 1989-07-19 | 1990-05-23 | 赵国良 | Electric heating waistcloth |
| CN2094170U (en) * | 1991-01-08 | 1992-01-22 | 王关根 | Low-voltage dc electric heater |
| US5357948A (en) * | 1992-01-18 | 1994-10-25 | Heinz Eilentropp | Heatable respiratory hose |
| CN2236436Y (en) * | 1995-09-07 | 1996-10-02 | 董金来 | Electric heating handlebar |
| CN1204266A (en) * | 1995-11-13 | 1999-01-06 | 菲舍尔和佩克尔有限公司 | Heated respiratory conduit |
| WO2000016840A1 (en) * | 1998-09-23 | 2000-03-30 | ADEVA Medical Gesellschaft für Entwicklung und Vertrieb von Medizinischen Implantat-Artikeln mbH | Tracheostoma valve |
| US6125847A (en) * | 1997-10-22 | 2000-10-03 | Lin; Chung-Yuan | Anesthetic applicator with a temperature humidity regulating capability |
| CN1360810A (en) * | 1999-05-14 | 2002-07-24 | 阿苏克技术有限责任公司 | Electrical heating device and resettable fuses |
| KR20050059955A (en) * | 2003-12-15 | 2005-06-21 | 주식회사 멕 아이씨에스 | Artificial respiration having linear exhalation pressure control function |
| CN101541367A (en) * | 2006-11-08 | 2009-09-23 | 雷斯梅德有限公司 | Conduit for use in a respiratory apparatus |
| CN101653636A (en) * | 2008-08-21 | 2010-02-24 | 德拉格医疗股份两合公司 | Respirator and combination device of respirator and breathing tube system |
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2011
- 2011-10-31 CN CN2011103382057A patent/CN103083775A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4727871A (en) * | 1985-10-28 | 1988-03-01 | Infrasonics, Inc. | Ventilator exhalation system |
| CN2057353U (en) * | 1989-07-19 | 1990-05-23 | 赵国良 | Electric heating waistcloth |
| CN2094170U (en) * | 1991-01-08 | 1992-01-22 | 王关根 | Low-voltage dc electric heater |
| US5357948A (en) * | 1992-01-18 | 1994-10-25 | Heinz Eilentropp | Heatable respiratory hose |
| CN2236436Y (en) * | 1995-09-07 | 1996-10-02 | 董金来 | Electric heating handlebar |
| CN1204266A (en) * | 1995-11-13 | 1999-01-06 | 菲舍尔和佩克尔有限公司 | Heated respiratory conduit |
| US6125847A (en) * | 1997-10-22 | 2000-10-03 | Lin; Chung-Yuan | Anesthetic applicator with a temperature humidity regulating capability |
| WO2000016840A1 (en) * | 1998-09-23 | 2000-03-30 | ADEVA Medical Gesellschaft für Entwicklung und Vertrieb von Medizinischen Implantat-Artikeln mbH | Tracheostoma valve |
| CN1360810A (en) * | 1999-05-14 | 2002-07-24 | 阿苏克技术有限责任公司 | Electrical heating device and resettable fuses |
| KR20050059955A (en) * | 2003-12-15 | 2005-06-21 | 주식회사 멕 아이씨에스 | Artificial respiration having linear exhalation pressure control function |
| CN101541367A (en) * | 2006-11-08 | 2009-09-23 | 雷斯梅德有限公司 | Conduit for use in a respiratory apparatus |
| CN101653636A (en) * | 2008-08-21 | 2010-02-24 | 德拉格医疗股份两合公司 | Respirator and combination device of respirator and breathing tube system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104784792A (en) * | 2015-04-03 | 2015-07-22 | 深圳市科曼医疗设备有限公司 | Breathing machine and moisture removing air path system thereof |
| WO2016155392A1 (en) * | 2015-04-03 | 2016-10-06 | 深圳市科曼医疗设备有限公司 | Ventilator and moisture-removing air circuit system thereof |
| CN111905207A (en) * | 2020-07-14 | 2020-11-10 | 深圳市普博科技有限公司 | Breathing machine |
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Application publication date: 20130508 |
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