CN202446626U - Waste anaesthetic gas collector - Google Patents
Waste anaesthetic gas collector Download PDFInfo
- Publication number
- CN202446626U CN202446626U CN2012200173967U CN201220017396U CN202446626U CN 202446626 U CN202446626 U CN 202446626U CN 2012200173967 U CN2012200173967 U CN 2012200173967U CN 201220017396 U CN201220017396 U CN 201220017396U CN 202446626 U CN202446626 U CN 202446626U
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- air
- relief valve
- pressure
- waste gas
- buffer unit
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Abstract
The utility model relates to a waste anaesthetic gas collector which comprises an air inlet pipe, an exhaust pipe and an air pressure buffering unit connected between the air inlet pipe and the exhaust pipe, and is characterized in that a positive pressure safety valve is arranged on a pipeline between the air inlet pipe and the air pressure buffering unit; when the air pressure in the air pressure buffering unit is higher than a preset upper limit value, the positive pressure safety valve is opened, so that partial waste gas can be discharged outside through the positive pressure safety valve; a negative pressure safety valve is arranged on a pipeline between the exhaust pipe and the air pressure buffering unit; and when the air pressure in the air pressure buffering unit is smaller than a preset lower limit value, the negative pressure safety valve is opened, so that the outside air can enter the exhaust pipe through the negative pressure safety valve. The waste anaesthetic gas collector has the benefits of simple structure, easiness in assembly and low manufacturing cost; and since the air pressure in skins is adjusted through a simple mechanical principle, so that the waste anaesthetic gas collector is high in reliability and can not cause failure easily.
Description
Affiliated technical field
This utility model relates to a kind of gas collector, is specifically related to a kind of gas collector that is used to absorb the waste gas of anesthesia that medical anesthetic machine discharges.
Background technology
When implementing operation, often need use anesthesia respirator.Generally implementing to suck in the general anesthesia process; Adopt open or anesthesia,semiopen method; Anesthetic gases directly mixes with room air, causes the operating room air pollution, even select semi-closed formula or closing type anesthetic machine for use; Anesthetic gases still can be discharged the contaminated operation environment from face shield, exhaust pition, corrugated tubing etc.Reported literature is arranged, and the narcot officer worked in the environment midium or long term of polluting, frequent contact anesthesia gas, thereby, even the anesthesia pollution concentration is low, still can influence healthy.Anesthesia is polluted and can be worked the mischief to human body through following approach; (1) the anesthetics molecule is to the direct detrimental effect of body cell; Anesthetics gets into and suppresses organism immune response in the human body, and phagocytotic leukocyte and lymphocyte transformation activity are suppressed, and weakens Abwehrkraft des Koepers; (2) in the GENERAL ANESTHETICS suction body, its metabolite directly or indirectly damages body cell.Many survey results are thought the morbidity of operation room work personnel cancerous protuberance except that outside the Pass having with factors such as work strain, fatigues; Maybe be relevant with the anesthetics cell growth inhibiting; Cell division is slowed down and produce abnormal cleavage substance, influence the synthetic of DNA (DNA) and restrain immune function in the body; Therefore industry has set about waste gas is collected and handled.
In the prior art, the waste gas end that is employed in anesthesia respirator usually applies the method for negative pressure and 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 Chinese patent of CN101612507 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 through air inlet pipe, under action of negative pressure, goes out through 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 through pore part waste gas is drained in the external world; Otherwise in then going into from external world's absorption air through pore.Yet this gas absorption system is only regulated the air pressure in the air-capacitor part through 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.
Summary of the invention
The purpose of this utility model provides a kind of novel waste gas of anesthesia automatic collecting device that can effectively overcome the problems referred to above generation; It can not influence the operate as normal of anesthetic machine; Collection and purification cost are low; Efficient is high, almost can discharge the waste gas of anesthesia and the patient expired gas sampling processing back of the anesthetic machine waste gas exhaust pipe interior 100% of flowing through outdoor.
The purpose of this utility model is achieved in that
A kind of waste gas of anesthesia gathering-device; Comprise air inlet pipe, exhaustor and be connected in pressure buffer unit between the two; It is characterized in that: on the pipeline between air inlet pipe and the pressure buffer unit, be provided with the malleation relief valve; When the air pressure in the said pressure buffer unit during greater than a predefined higher limit, said malleation relief valve is opened, and makes the said waste gas of part drain into the external world through said malleation relief valve; On the pipeline between exhaustor and the pressure buffer unit, be provided with negative pressure relief valve; When the air pressure in the said pressure buffer unit during less than a predefined lower limit; Said negative pressure relief valve is opened, and makes outside air pass through this negative pressure relief valve and gets in the said exhaustor.
Further, on described malleation relief valve, be in series with the filtration, purification unit.
Further, described pressure buffer unit adopts the folded airbag cavity configuration, and folded airbag is in a cavity.
Further, on said exhaustor, be provided with the Flow-rate adjustment bolt of the extraction flow that is used to regulate said exhaustor.
When using this utility model, air inlet is linked to each other with the anesthetic machine outlet port, the gas outlet is connected with the negative pressure of vacuum source and gets final product.
The beneficial effect of this utility model is: simple in structure, be easy to assembling, low cost of manufacture; Adopt the accommodation section of the pressure buffer unit 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.Owing to adopt simple theory of mechanics to regulate the air pressure in the leather bag, so reliability is very high, is difficult for producing fault.
Description of drawings
Fig. 1 is the structural representation of this utility model.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment this utility model is further specified.
Consult Fig. 1, the embodiment of this utility model provides a kind of waste gas of anesthesia gathering-device, comprises air inlet pipe 1, exhaustor 2 and is connected in pressure buffer unit 3 between the two.Described air inlet pipe 1 is connected with the toxic emission end (not drawing among the figure) of anesthesia respirator, and a described exhaustor 2 and a negative pressure source (for example be vacuum pump, do not draw among the figure) are connected.Described pressure buffer unit 3 adopts the folded airbag cavity configuration, and folded airbag 30 is in a cavity 31, and it has formed the gauffer of multilamellar lantern shape on short transverse, therefore can on short transverse, freely stretch, thereby change self volume.
On the pipeline between air inlet pipe 1 and the pressure buffer unit 3, be provided with malleation relief valve 5; When the air pressure in the said pressure buffer unit 3 during greater than a predefined higher limit; Said malleation relief valve 5 is opened; Thereby avoid because the too high exhaust gas recirculation that causes of air pressure makes the said waste gas of part drain into the external world through said malleation relief valve 5; As preferred embodiment, on described malleation relief valve 5, be in series with clean unit 6.Waste gas just is discharged into the external world after absorbing processing anesthesia composition through clean unit 6, has eliminated the pollution of waste gas.
On the pipeline between exhaustor 2 and the pressure buffer unit 3, be provided with negative pressure relief valve 7; When the air pressure in the said pressure buffer unit during less than a predefined lower limit; Said negative pressure relief valve 7 is opened; Make outside air pass through this negative pressure relief valve 7 and get in the said exhaustor, the air pressure in gas circuit and the pressure buffer unit 3 is supplied.
As preferred embodiment, on said exhaustor 2, be provided with the Flow-rate adjustment bolt 8 of the extraction flow that is used to regulate said exhaustor 2.Be used to regulate the flow that waste gas is discharged, thereby adapt to different patients' expiration amount.
The above content that discloses; It is the preferable specific embodiment of this utility model; The purpose of all and this utility model is equivalent or impartial content with the effect that can reach; And for those skilled in the art can unlabored simple and easy modification, modification, improvement or variation, all should not break away from the patent right scope of opinion that this utility model is contained.
Claims (4)
1. waste gas of anesthesia gathering-device; Comprise air inlet pipe, exhaustor and be connected in pressure buffer unit between the two; It is characterized in that: on the pipeline between air inlet pipe and the pressure buffer unit, be provided with the malleation relief valve; When the air pressure in the said pressure buffer unit during greater than a predefined higher limit, said malleation relief valve is opened, and makes the said waste gas of part drain into the external world through said malleation relief valve; On the pipeline between exhaustor and the pressure buffer unit, be provided with negative pressure relief valve; When the air pressure in the said pressure buffer unit during less than a predefined lower limit; Said negative pressure relief valve is opened, and makes outside air pass through this negative pressure relief valve and gets in the said exhaustor.
2. a kind of waste gas of anesthesia gathering-device according to claim 1 is characterized in that: on described malleation relief valve, be in series with the filtration, purification unit.
3. a kind of waste gas of anesthesia gathering-device according to claim 1 is characterized in that: described pressure buffer unit adopts the folded airbag cavity configuration, and folded airbag is in a cavity.
4. a kind of waste gas of anesthesia gathering-device according to claim 1 is characterized in that: the Flow-rate adjustment bolt that on said exhaustor, is provided with the extraction flow that is used to regulate said exhaustor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200173967U CN202446626U (en) | 2012-01-16 | 2012-01-16 | Waste anaesthetic gas collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200173967U CN202446626U (en) | 2012-01-16 | 2012-01-16 | Waste anaesthetic gas collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202446626U true CN202446626U (en) | 2012-09-26 |
Family
ID=46862524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200173967U Expired - Fee Related CN202446626U (en) | 2012-01-16 | 2012-01-16 | Waste anaesthetic gas collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202446626U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105833407A (en) * | 2016-03-18 | 2016-08-10 | 南昌大学第二附属医院 | Anesthetic waste gas collection device |
| CN107456638A (en) * | 2017-07-13 | 2017-12-12 | 吉林大学 | A kind of Medical anesthetic waste gas reception device |
| WO2019075722A1 (en) * | 2017-10-20 | 2019-04-25 | 深圳迈瑞生物医疗电子股份有限公司 | Anesthesia machine exhaust emission control system, and control method therefor |
| WO2019148347A1 (en) * | 2018-01-31 | 2019-08-08 | 三雷斯医疗科技（深圳）有限公司 | Surgical smoke evacuation device |
| CN110368776A (en) * | 2019-07-19 | 2019-10-25 | 中国医药集团联合工程有限公司 | A kind of organic solvent absorbing recovery device |
| CN114177449A (en) * | 2021-12-28 | 2022-03-15 | 合肥康居人智能科技有限公司 | Breathing machine with air return treatment function |
-
2012
- 2012-01-16 CN CN2012200173967U patent/CN202446626U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105833407A (en) * | 2016-03-18 | 2016-08-10 | 南昌大学第二附属医院 | Anesthetic waste gas collection device |
| CN105833407B (en) * | 2016-03-18 | 2018-10-09 | 南昌大学第二附属医院 | Anaesthesia waste gas collection device |
| CN107456638A (en) * | 2017-07-13 | 2017-12-12 | 吉林大学 | A kind of Medical anesthetic waste gas reception device |
| WO2019075722A1 (en) * | 2017-10-20 | 2019-04-25 | 深圳迈瑞生物医疗电子股份有限公司 | Anesthesia machine exhaust emission control system, and control method therefor |
| WO2019148347A1 (en) * | 2018-01-31 | 2019-08-08 | 三雷斯医疗科技（深圳）有限公司 | Surgical smoke evacuation device |
| CN110368776A (en) * | 2019-07-19 | 2019-10-25 | 中国医药集团联合工程有限公司 | A kind of organic solvent absorbing recovery device |
| CN114177449A (en) * | 2021-12-28 | 2022-03-15 | 合肥康居人智能科技有限公司 | Breathing machine with air return treatment function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20140116 |