CN201862106U - Anaesthesia waste gas collection device - Google Patents
Anaesthesia waste gas collection device Download PDFInfo
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- CN201862106U CN201862106U CN 201020239876 CN201020239876U CN201862106U CN 201862106 U CN201862106 U CN 201862106U CN 201020239876 CN201020239876 CN 201020239876 CN 201020239876 U CN201020239876 U CN 201020239876U CN 201862106 U CN201862106 U CN 201862106U
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- waste gas
- negative pressure
- leather bag
- anesthesia
- relief valve
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Abstract
The utility model discloses an anaesthesia waste gas collection device, which comprises an air inlet pipe; an accommodating part used for accommodating the waste gas entered by the air inlet pipe; and a discharge pipe used for discharging the waste gas in the accommodating part by using negative pressure. The accommodating part is a leather bag with variable volume; and the discharge pipe generates negative pressure continuously. By using a leather bag with variable volume as a waste gas accommodating part, the device can adjust the volume according to the waste gas amount; and because the exhaust pipe is kept with a certain negative pressure, the device ensures a constant air pressure in the leather bag, and prevents gas exchange with the outside in normal work state; The device also achieves the advantages of a simple structure, easy assembling and low manufacturing cost; the whole device contains no electric component, so has a high reliability and is not easy to have failures.
Description
Technical field
This utility model relates to a kind of gas collector, is specifically related to use a kind of gas collector that is used to absorb the waste gas of anesthesia that Medical Instruments discharges.
Background technology
When implementing operation, often need use anesthesia respirator.The effect of anesthesia respirator is to utilize Repiration to carry anesthetic gases in the patient body, comes patient is implemented anesthesia, and implements to breathe auxiliary to entering narcose patient.In this process,, therefore, can work the mischief to the doctor, so must collect and handle to waste gas if should directly be discharged into operating room by discarded waste gas end by anesthesia respirator owing to still contain certain density anesthetic gases in the patient expired waste gas.
In the prior art, the method that usually adopts waste gas end at anesthesia respirator to apply negative pressure comes waste gas is collected.The crucial part of this method is, must guarantee that the air pressure in the gas collector is constant, avoids influencing the work of anesthesia respirator owing to air pressure fluctuation causes exhaust gas recirculation.
Publication number is that the patent of invention of CN101612507A discloses a kind of gas absorption system, comprises air inlet pipe, air-capacitor part and negative pressure exhaust pipe.Waste gas is temporarily stored into the air-capacitor part by air inlet pipe, under the effect of negative pressure, goes out by the negative pressure exhaust bank of tubes then.For making the air pressure in the air-capacitor part keep stable, on the outer wall of air-capacitor part, have the pore that communicates with external environment.Air pressure in the air-capacitor part is excessive, then by pore part waste gas is drained in the external world; Otherwise in then going into from external world's absorption air by pore.Yet this gas absorption system is only regulated the interior air pressure of air-capacitor part by pore, causes between air-capacitor part and the outside air gas exchange taking place frequently, so, just can't thoroughly collect waste gas,, will pollute the indoor air of performing the operation whenever producing gas exchange.
The patent No. is that the utility model patent of ZL 200520056347.4 discloses a kind of waste gas of anesthesia automatic collecting device.This device possesses air inlet pipe, air-capacitor part and negative pressure exhaust pipe equally, but its air-capacitor is the air bag of a variable-volume partly, during patient exhales, waste gas enters air bag, air bag is strutted, and all waste gases all is accommodated among the air bag, can gas exchange not take place with the external world.Simultaneously, this device also is provided with a photoswitch that is used to monitor gas volume, in case the air bag volume surpasses a certain predefined value, then photoswitch is opened, order is installed in the vacuum electromagnetic valve events of negative pressure exhaust end, thereby produces negative pressure, and the waste gas in its capsule is taken away, the air bag volume dwindles gradually, closes until photoswitch.This device is collected waste gas by the air bag of variable volume, can gas exchange not take place with the external world during operate as normal, has guaranteed the air-tightness of device.But the action of its vacuum solenoid is interrupted, and the negative pressure that the negative pressure exhaust end is produced also is interrupted, and this will cause the device internal gas pressure to produce fluctuation, be difficult to keep air pressure constant.In addition, must rely on photoswitch to judge whether and to bleed that reliability is not high,, will cause the accident in case photoswitch is malfunctioning.
The utility model content
The purpose of this utility model is to provide the waste gas of anesthesia gathering-device that a kind of air-tightness is good, stability is high.
For achieving the above object, this utility model has been taked following technical scheme:
A kind of waste gas of anesthesia gathering-device comprises air inlet pipe; Be used to hold the accommodation section of the waste gas that enters from described air inlet pipe; And utilize negative pressure that the waste gas in the described accommodation section is drained into extraneous exhaustor.The described accommodation section is the leather bag of variable volume, and described exhaustor continues to produce negative pressure.
Further, be provided with the malleation relief valve on described air inlet pipe, when the air pressure in the described leather bag during greater than a predefined higher limit, described malleation relief valve is opened, and makes the described waste gas of part drain into the external world by described malleation relief valve.
Further, be provided with negative pressure relief valve on described exhaustor, when the air pressure in the described leather bag during less than a predefined lower limit, described negative pressure relief valve is opened, and makes outside air enter in the described exhaustor by this negative pressure relief valve.
Further, 1.5～3 times of the maximum volume behaviour respiration of the described leather bag gas volume of being breathed out.
Further, described leather bag is a bottom surface constant diameter, highly telescopic cylindrical, and described bottom surface diameter is 80～200 millimeters, and the height of described height when being stretched to maximum is 100～300 millimeters.
Further, on described exhaustor, be provided with the Flow-rate adjustment bolt of the extraction flow that is used to regulate described exhaustor.
The waste gas of anesthesia gathering-device of implementing according to this utility model has following advantage:
1, adopts the accommodation section of the leather bag of variable volume as waste gas, exhausted air quantity volume for a long time increases, and exhausted air quantity volume after a little while reduces, and exhaustor remains certain negative pressure, thereby guaranteed that the air pressure in the leather bag is constant, and can gas exchange not take place in normal operation with the external world.
2, this waste gas of anesthesia gathering-device is simple in structure, is easy to assembling, low cost of manufacture.
3, there are not electric elements in the whole device, only adopt simple theory of mechanics to regulate the interior air pressure of leather bag, so reliability are very high, be difficult for producing fault.
Description of drawings
Fig. 1 is the full sectional view of the waste gas of anesthesia gathering-device of embodiment 1, and wherein leather bag is in the full extension state;
Fig. 2 is the full sectional view of the waste gas of anesthesia gathering-device of embodiment 1, and wherein leather bag is in half extended configuration;
Fig. 3 is the assembling stereogram of the waste gas of anesthesia gathering-device of embodiment 1;
Wherein: 1, inlet suction port; 2, leather bag; 3, air extraction connector; 4, malleation relief valve; 5, negative pressure relief valve; 6, Flow-rate adjustment bolt; 7, leather bag cover; 8, gas circuit seat; 9, air inlet pipe; 10, exhaustor; 11, spring; 12,13, diaphragm.
The specific embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail.Should be understood that following examples only are used to this utility model is described but not are used to limit scope of the present utility model.
Embodiment 1:
Accompanying drawing 1 and accompanying drawing 2 are respectively leather bag 2 and are under full extension or half extended configuration full sectional view of waste gas of anesthesia gathering-device.Shown in accompanying drawing 1,2,3, the waste gas of anesthesia gathering-device of implementing according to this utility model is made of gas circuit seat 8, inlet suction port 1, leather bag 2, air extraction connector 3 and leather bag cover 7.
The exhaustor 10 that is formed with the air inlet pipe 9 that enters for waste gas in the gas circuit seat 8 and discharges in the leather bag for waste gas.Air inlet pipe 9 is connected with the waste gas end of anesthesia respirator by inlet suction port 1, thereby makes waste gas to enter in the leather bag 2 by inlet suction port 1 and air inlet pipe 9.Exhaustor 10 links to each other with a vacuum pump not shown in the figures by air extraction connector 3, and vacuum pump continues evacuation, produces negative pressure at air extraction connector 3 places, thereby waste gas is extracted out from leather bag 2.
Be provided with malleation relief valve 4 below air inlet pipe 9, the gas outlet diameter of this malleation relief valve 4 is about 10 millimeters, adopts a spring 11 and a diaphragm 12 to control.When the air pressure in gas circuit and the leather bag 2 was higher than the elastic force of spring 11, diaphragm 12 was backed down, and waste gas will be released into the external world, thereby avoided because the too high exhaust gas recirculation that causes of air pressure.
Be provided with negative pressure relief valve 5 below exhaustor 10, the gas outlet diameter of this negative pressure relief valve 5 is about 10 millimeters, has covered a diaphragm 13 on this gas outlet, and this diaphragm 13 seals the gas outlet owing to deadweight rides on the gas outlet.In case the air pressure in gas circuit and the leather bag 2 is too small, then outside air can back down diaphragm 13, makes in the air admission exhaustor 10, and the air pressure in gas circuit and the leather bag 2 is supplied.
Leather bag cover 7 covers the outside of leather bag 2, promptly plays a protective role, and has limited the maximum volume of leather bag 2 again.When leather bag 2 was stretched over the limiting altitude that leather bag cover 7 allowed, if continue to have waste gas to enter, leather bag 2 can't further increase volume, and then the air pressure in the leather bag 2 raise, and malleation relief valve 4 starts.
In addition, on exhaustor 10, also be provided with a Flow-rate adjustment bolt 6, be used to regulate the flow that waste gas is discharged, thereby adapt to different patients' respiratory frequency and vital capacity.
Claims (5)
1. a waste gas of anesthesia gathering-device comprises air inlet pipe; Be used to hold the accommodation section of the waste gas that enters from described air inlet pipe; And utilize negative pressure that the waste gas in the described accommodation section is drained into extraneous exhaustor, and it is characterized in that: the described accommodation section is the leather bag (2) of variable volume, described exhaustor continues to produce negative pressure.
2. waste gas of anesthesia gathering-device according to claim 1, it is characterized in that: on described air inlet pipe, be provided with malleation relief valve (4), when the air pressure in the described leather bag (2) during greater than a predefined higher limit, described malleation relief valve (4) is opened, and makes the described waste gas of part drain into the external world by described malleation relief valve (4).
3. waste gas of anesthesia gathering-device according to claim 1, it is characterized in that: on described exhaustor, be provided with negative pressure relief valve (5), when the air pressure in the described leather bag (2) during less than a predefined lower limit, described negative pressure relief valve (5) is opened, and makes outside air pass through this negative pressure relief valve (5) and enters in the described exhaustor.
4. according to claim 1 or 2 or 3 described waste gas of anesthesia gathering-devices, it is characterized in that: described leather bag (2) is bottom surface constant diameter, highly telescopic cylindrical, described bottom surface diameter is 80～200 millimeters, and the height of described height when being stretched to maximum is 100～300 millimeters.
5. waste gas of anesthesia gathering-device according to claim 1 is characterized in that: the Flow-rate adjustment bolt (6) that is provided with the extraction flow that is used to regulate described exhaustor on described exhaustor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020239876 CN201862106U (en) | 2010-06-25 | 2010-06-25 | Anaesthesia waste gas collection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020239876 CN201862106U (en) | 2010-06-25 | 2010-06-25 | Anaesthesia waste gas collection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201862106U true CN201862106U (en) | 2011-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020239876 Expired - Fee Related CN201862106U (en) | 2010-06-25 | 2010-06-25 | Anaesthesia waste gas collection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201862106U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103372254A (en) * | 2012-04-27 | 2013-10-30 | 上海力申科学仪器有限公司 | Waste gas treatment device |
| CN104874075A (en) * | 2014-02-28 | 2015-09-02 | 北京谊安医疗系统股份有限公司 | Foldable bag and anesthesia machine with same |
| CN105233382A (en) * | 2015-11-04 | 2016-01-13 | 傅守勇 | Medical anesthetic waste gas receiving device |
| CN105833407A (en) * | 2016-03-18 | 2016-08-10 | 南昌大学第二附属医院 | Anesthetic waste gas collection device |
| CN113287961A (en) * | 2021-05-31 | 2021-08-24 | 中国船舶重工集团公司第七一九研究所 | Leather bag type toilet storage container |
-
2010
- 2010-06-25 CN CN 201020239876 patent/CN201862106U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103372254A (en) * | 2012-04-27 | 2013-10-30 | 上海力申科学仪器有限公司 | Waste gas treatment device |
| CN103372254B (en) * | 2012-04-27 | 2015-09-02 | 上海力申科学仪器有限公司 | Emission-control equipment |
| CN104874075A (en) * | 2014-02-28 | 2015-09-02 | 北京谊安医疗系统股份有限公司 | Foldable bag and anesthesia machine with same |
| CN104874075B (en) * | 2014-02-28 | 2018-07-03 | 北京谊安医疗系统股份有限公司 | Fold capsule and with its Anesthesia machine |
| CN105233382A (en) * | 2015-11-04 | 2016-01-13 | 傅守勇 | Medical anesthetic waste gas receiving device |
| CN105833407A (en) * | 2016-03-18 | 2016-08-10 | 南昌大学第二附属医院 | Anesthetic waste gas collection device |
| CN113287961A (en) * | 2021-05-31 | 2021-08-24 | 中国船舶重工集团公司第七一九研究所 | Leather bag type toilet storage container |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20190625 |