CN103028172A - Control device used for keeping output concentration of anesthetic gas of anesthesia machine constant - Google Patents
Control device used for keeping output concentration of anesthetic gas of anesthesia machine constant Download PDFInfo
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- CN103028172A CN103028172A CN2011102905495A CN201110290549A CN103028172A CN 103028172 A CN103028172 A CN 103028172A CN 2011102905495 A CN2011102905495 A CN 2011102905495A CN 201110290549 A CN201110290549 A CN 201110290549A CN 103028172 A CN103028172 A CN 103028172A
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- valve body
- anesthetic
- anesthetic gas
- anesthetic gases
- jet pipe
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Abstract
A control device used for keeping output concentration of anesthetic gas of an anesthesia machine constant comprises a T-shaped pipe and a valve body, wherein the T-shaped pipe comprises an oxygen inlet, an anesthetic gas inlet and an anesthetic mixed gas outlet, the valve body is provided with an anesthetic gas spraying pipe, the wall of the anesthetic gas spraying pipe is provided with at least one through hole communicated with an inner cavity of the spraying pipe, one end of the anesthetic gas spraying pipe is fixedly connected with the valve body and is communicated with an inner cavity of the valve body, a pressure buffering piece perpendicular to the axial direction of the anesthetic gas spraying pipe is arranged at the other end of the anesthetic gas spraying pipe, and the area of the pressure buffering piece is larger than that of the cross section of the anesthetic gas spraying pipe. The valve body is connected with the T-shaped pipe through a connection pipe, the anesthetic gas spraying pipe of the valve body and the anesthetic gas inlet in the T-shaped pipe are both located in the connection pipe, and the gaps among the valve body, the T-shaped pipe and the connection pipe are sealed through sealing rings.
Description
Technical field
The invention belongs to field of medical, relate to a kind of gas circuit structure of suction type anaesthetic machine, particularly keep the protector of anesthetics output concentration stabilize during the quick oxygen supply of a kind of anesthetic machine.
Background technology
Anesthetic machine is mainly used in the suction-type surgery anesthesia clinically, and its principle is to utilize oxygen to make anaesthetic volatilization by the anaesthetic vaporizer, produces oxygen and the mist of anaesthetic, will input to patient with the mist of anaesthetic, makes patient be in narcotism.Because anaesthetic has certain side effect to the mankind, so it is significant for patient's anaesthetic effect accurately to control anesthetic machine anaesthetic output concentration.Accurately the anaesthetic output concentration of control anesthetic machine except and outside the Pass the precision of anaesthetic vaporizer has, also and the control gas circuit of anesthetic machine direct relation is arranged.In the control gas circuit of anesthetic machine, larger to the pressure influence of anaesthetic vaporizer outfan during owing to quick oxygen supply, so oxygen supply is maximum to the output concentration affects of anaesthetic vaporizer fast.Prior art is to utilize venturi principle (schematic diagram is seen Fig. 1), anaesthetic vaporizer outfan produced negative pressure when its shortcoming was quick oxygen supply, the low about 10kPa of the pressure of (oxygen supply is closed fast) during than normal operation, so that vaporizer moment output concentration increases, affect patient's anaesthetic effect.Eliminate quick oxygen supply to anaesthetic vaporizer output concentration as influencing factor, key is the variation of anaesthetic vaporizer output end pressure when eliminating quick oxygen supply.
Summary of the invention
Purpose of the present invention namely is the defective for present anesthetic machine control gas circuit, and the protector when the quick oxygen supply of a kind of anesthetic machine is provided keeps anesthetics output concentration stabilize when the quick oxygen supply of anesthetic machine.
Technical scheme of the present invention is as follows:
A kind of control device that keeps anesthetic machine anesthetic gases output concentration stabilize is characterized in that: comprise a tee T and a valve body, described tee T comprises an oxygen inlet, an anesthetic gases import, an anesthesia mixed gas outlet; Be provided with the anesthetic gases jet pipe on the described valve body, the through hole that has at least one to communicate with the jet pipe inner chamber on the tube wall of described anesthetic gases jet pipe; Described anesthetic gases jet pipe one end is fixedly connected with valve body and communicates with body cavity, the other end arrange one with the axial vertical pressure buffer sheet of anesthetic gases jet pipe, the area of described pressure buffer sheet is greater than the cross-sectional area of described anesthetic gases jet pipe; Described valve body is connected by connection tube with tee T, and the anesthetic gases jet pipe on the valve body and the anesthetic gases import on the tee T all are positioned at connection tube, and the slit between valve body and tee T and the connection tube seals by sealing ring.
The present invention can eliminate the impact of anaesthetic vaporizer output end pressure when quick oxygen supply, keeps the stable of anesthetic gases output concentration, and patient is shielded.
Description of drawings
Fig. 1 is the schematic diagram of existing anesthetic machine feeder
Fig. 2 is the structural representation of an embodiment of the present invention
The specific embodiment
As shown in Figure 2, the present invention includes a tee T 1 and a valve body 2, described tee T 1 comprises an oxygen inlet 11, an anesthetic gases import 12, an anesthesia mixed gas outlet 13; Be provided with anesthetic gases jet pipe 3 on the described valve body 2, the through hole 31 that has at least one to communicate with the jet pipe inner chamber on the tube wall of described anesthetic gases jet pipe 3; Described anesthetic gases jet pipe 3 one ends are fixedly connected with valve body 2 and communicate with the inner chamber of valve body 2, the other end arrange one with the axial vertical pressure buffer sheet 4 of anesthetic gases jet pipe, the area of described pressure buffer sheet 4 is greater than the cross-sectional area of described anesthetic gases jet pipe 3; Described valve body 2 is connected by connection tube 5 with tee T 1, and the anesthetic gases jet pipe 3 on the valve body 2 all is positioned at connection tube 5 with the anesthetic gases import 12 on the tee T 1, and the slit between valve body and tee T and the connection tube is by sealing ring 6 sealings.
The present invention in anesthetic machine gas circuit shown in Figure 1, replaces wherein venturi valve with the present invention in use, and gas flow is shown in the direction of arrow among Fig. 2.Oxygen enters tee T by the oxygen inlet 11 of tee T 1, the anesthetic gases of anaesthetic vaporizer outfan output is by through hole 31 outputs of valve body 2 on jet pipe 3, walk around pressure buffer sheet 4, anesthetic gases import 12 on tee T 1 enters tee T again, with after the oxygen mix by the output of anesthesia mixed gas outlet 13.The present invention can keep anesthetics output concentration stabilize because the effect of pressure buffer sheet 4 is very little on the impact of anaesthetic vaporizer output end pressure when quick oxygen supply.
Claims (1)
1. control device that keeps anesthetic machine anesthetic gases output concentration stabilize, it is characterized in that: comprise a tee T and a valve body, described tee T comprises an oxygen inlet, an anesthetic gases import, an anesthesia mixed gas outlet; Be provided with the anesthetic gases jet pipe on the described valve body, the through hole that has at least one to communicate with the jet pipe inner chamber on the tube wall of described anesthetic gases jet pipe; Described anesthetic gases jet pipe one end is fixedly connected with valve body and communicates with body cavity, the other end arrange one with the axial vertical pressure buffer sheet of anesthetic gases jet pipe, the area of described pressure buffer sheet is greater than the cross-sectional area of described anesthetic gases jet pipe; Described valve body is connected by connection tube with tee T, and the anesthetic gases jet pipe on the valve body and the anesthetic gases import on the tee T all are positioned at connection tube, and the slit between valve body and tee T and the connection tube seals by sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102905495A CN103028172A (en) | 2011-09-29 | 2011-09-29 | Control device used for keeping output concentration of anesthetic gas of anesthesia machine constant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102905495A CN103028172A (en) | 2011-09-29 | 2011-09-29 | Control device used for keeping output concentration of anesthetic gas of anesthesia machine constant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103028172A true CN103028172A (en) | 2013-04-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102905495A Pending CN103028172A (en) | 2011-09-29 | 2011-09-29 | Control device used for keeping output concentration of anesthetic gas of anesthesia machine constant |
Country Status (1)
| Country | Link |
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| CN (1) | CN103028172A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112827037A (en) * | 2020-12-31 | 2021-05-25 | 北京谊安医疗系统股份有限公司 | Anesthetic volatilization device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB701206A (en) * | 1950-01-12 | 1953-12-23 | British Thermostat Co Ltd | Improvements in or relating to devices for regulating the flow of a gas or vapour and for indicating the temperature of the vapour, applicable to the administration of an aesthetics |
| US5197462A (en) * | 1991-02-20 | 1993-03-30 | Dragerwerk Aktiengesellschaft | Anesthetic metering device |
| CN2147001Y (en) * | 1992-12-31 | 1993-11-24 | 天津市第二中心医院 | Coaxial air mixing compatible circuit device for anaesthesia |
| RU2078585C1 (en) * | 1992-12-07 | 1997-05-10 | Акционерное общество открытого типа "Кампо" | Inspired gas mixture dosing device |
| CN201189345Y (en) * | 2008-05-23 | 2009-02-04 | 北京航天长峰股份有限公司 | Oxygen concentration adjustment device |
-
2011
- 2011-09-29 CN CN2011102905495A patent/CN103028172A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB701206A (en) * | 1950-01-12 | 1953-12-23 | British Thermostat Co Ltd | Improvements in or relating to devices for regulating the flow of a gas or vapour and for indicating the temperature of the vapour, applicable to the administration of an aesthetics |
| US5197462A (en) * | 1991-02-20 | 1993-03-30 | Dragerwerk Aktiengesellschaft | Anesthetic metering device |
| RU2078585C1 (en) * | 1992-12-07 | 1997-05-10 | Акционерное общество открытого типа "Кампо" | Inspired gas mixture dosing device |
| CN2147001Y (en) * | 1992-12-31 | 1993-11-24 | 天津市第二中心医院 | Coaxial air mixing compatible circuit device for anaesthesia |
| CN201189345Y (en) * | 2008-05-23 | 2009-02-04 | 北京航天长峰股份有限公司 | Oxygen concentration adjustment device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112827037A (en) * | 2020-12-31 | 2021-05-25 | 北京谊安医疗系统股份有限公司 | Anesthetic volatilization device |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130410 |