CN100590394C - Device for detecting narcosis gas output quantity - Google Patents
Device for detecting narcosis gas output quantity Download PDFInfo
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- CN100590394C CN100590394C CN200810020290A CN200810020290A CN100590394C CN 100590394 C CN100590394 C CN 100590394C CN 200810020290 A CN200810020290 A CN 200810020290A CN 200810020290 A CN200810020290 A CN 200810020290A CN 100590394 C CN100590394 C CN 100590394C
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- solenoid valve
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- water tank
- electromagnetic valve
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Abstract
The invention relates to a testing device of the sendout of an anaesthetic gas, two collecting bags are arranged in a water tank, wherein, one collecting bag is communicated with p ends of electromagnetic valves 1, 3, and the other collecting bag is communicated with p ends of electromagnetic valves 2, 4. The R end of the electromagnetic valve 1 is communicated with the A end of the electromagnetic valve 2, and the R end of the electromagnetic valve 4 is communicated with the A end of the electromagnetic valve 3. The A end of the electromagnetic valve 1 is communicated with a common gas outletof an anaesthetic machine, and the A end of the electromagnetic valve 4 is communicated with a pressure gauge, a regulating valve and a flowmeter to a concentration testing instrument. A negative pressure pump of the closed top end of the water tank establishes stable air pressure of -10Kpa in the water tank. By the precision measurement of three essentials of gas volume, transfer time and gas concentration, an evaporation volume of the anaesthetic gas in each stage in each unit time can be obtained. By the comparison, the increment of the sendout of the anaesthetic gas is proved whether exceeds 20 percent during and after rapid oxygen supply or when the air pressure waves -10KPa.
Description
Technical field
The present invention relates to a kind of pick-up unit of narcosis gas output quantity, specifically a kind of be used for evaporator on the Anesthesia machine before quick oxygen supply, fast during the oxygen supply and after the pick-up unit of narcosis gas output quantity.
Background technology
Oxygen supply may produce certain danger to the influence of anesthetic gases conveying device (AVDD) fast.Such as: if the anesthetic gases conveying device is installed in the downstream of quick oxygen supply, the oxygen of high flow capacity can cause the increase of its exit concentration, in some cases even cause from anesthetic gases conveying device outlet and discharge liquid anesthetic; If the gas circuit vapour lock of anesthesiaing system is too high, fast the anesthetic gases conveying device can produce " pump suction " phenomenon during oxygen supply, and causes the increase of its exit concentration thus.In ISO8835-4:2004 " anesthetic steam conveying equipment " standard requirement has been made in these danger, the anesthetic gases increment of its output can not surpass 20% after promptly reaching during quick oxygen supply; The anesthetic gases increment of its output can not surpass 20% when air pressure fluctuation 10KPa.At present, in this process, lack the proving installation of narcosis gas output quantity, narcosis gas output quantity can't accurately be judged by Anesthesia machine manufacturer, user and testing agency, and it is practicable to make that this standard can not be implemented.
Summary of the invention
In order to overcome the shortcoming that prior art exists, it is accurate, safe and reliable to the purpose of this invention is to provide a kind of metering, can accurately collect, measure tested anesthetic gases volume, accurately controls minute, accurately record anesthetic gases output concentration, and try to achieve the pick-up unit of narcosis gas output quantity.
The technical solution used in the present invention is: a kind of pick-up unit of narcosis gas output quantity comprises four solenoid valves, water tank, two collecting bags, tensimeter, variable valve, flowmeter, concentration tester, retaining valve, vacuum table, negative pressure pump, be provided with two collecting bags that are immersed in fully in the water in the described water tank, the bottom of two collecting bags is fixed on water tank bottom, wherein a collecting bag is communicated with the P end of solenoid valve 1,3, and another collecting bag is communicated with the P end of solenoid valve 2,4; The R end of solenoid valve 1 is communicated with the A end of solenoid valve 2, and the R end of solenoid valve 4 is communicated with the A end of solenoid valve 3; The A end of solenoid valve 1 is connected to the common gas vent of Anesthesia machine, and the R of solenoid valve 2 is connected to sewage draining exit, and the R of solenoid valve 3 is connected to the normal concentration gas vent, and normal concentration gas is used for the corrected concentrations tester; The A end of solenoid valve 4 is communicated with tensimeter, variable valve, flowmeter to concentration tester, tensimeter is used for the gaseous tension in the measurement collection bag, revise gas volume, variable valve and flowmeter are regulated the anesthetic gases test traffic according to the requirement of concentration tester, and concentration tester is measured anesthesia gas concentration; The closed top end of water tank connects negative pressure pump and retaining valve, and negative pressure pump sets up in the water tank-the stable air pressure of 10KPa, retaining valve guarantees not produce normal pressure in the water tank, guarantees pressure stability.
Solenoid valve 1 is regularly collected during preceding 1 minute gas of quick oxygen supply and the quick oxygen supply in 10 seconds and 10 seconds-10KPa stablizes gas during the gas pressure test;
During gas that the quick oxygen supply of solenoid valve 3 control test is preceding 1 minute and the quick oxygen supply in 10 seconds and 10 seconds-10KPa stablize gas during the gas pressure test;
The gas in 30 seconds after the quick oxygen supply of solenoid valve 4 control test ,-10KPa stablize air pressure 30 seconds afterwards gas.
For trying to achieve the comparability of narcosis gas output quantity, must accurately measure and control volume, delivery time and the gas concentration three elements of gas.The volume of anesthetic gases is to get with the drainage accurate measurement by two collecting bags in the water tank, and revises by the force value that tensimeter is measured; The break-make of anesthetic gases delivery time by the Single-chip Controlling solenoid valve realizes; The output concentration of anesthetic gases is regulated by variable valve and flowmeter and is stablized tested anesthetic gases flow, accurately measures through concentration tester.
The result who measures by above method tries to achieve anesthetic gases evaporated volume in the triphasic unit interval respectively, thereby the comparability of drawing, confirming, during oxygen supply fast and after or during air pressure fluctuation-10KPa, whether the output quantity increment of anesthetic gases above 20%.
After adopting above technical scheme, the beneficial effect that the present invention reaches is: this pick-up unit test philosophy is clear, metering accurately, by programmed control can accurately judge during the quick oxygen supply and after the narcosis gas output quantity increment whether meet the requirement of ISO8835-4:2004 " anesthetic steam conveying equipment " standard code, gas volume is accurate to 1%, the acquisition time of gas is accurate to 1%, in the concentration degree of accuracy to 5% of output anesthetic gases.This proving installation effectively solves Anesthesia machine and evaporator because of designing the improper harm that causes.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure, solenoid valve 1,2,3,4, collecting bag 5,6, tensimeter 7, variable valve 8, flowmeter 9, sewage draining exit 10, concentration tester 11, water tank 12, retaining valve 13, vacuum table 14, negative pressure pump 15, the common gas vent 16 of Anesthesia machine, normal concentration gas vent 17.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described further.
As shown in Figure 1, a kind of pick-up unit of narcosis gas output quantity, comprise solenoid valve 1,2,3,4, water tank 12, two collecting bags 5,6, tensimeter 7, variable valve 8, flowmeter 9, concentration tester 11, retaining valve 13, vacuum table 14, negative pressure pump 15, be provided with two collecting bags 5,6 in the water tank 12.
Test process is as follows:
1, the verification of concentration tester: normal concentration gas is fed pick-up unit by normal concentration gas vent 17, regulate variable valve 8, whether the test result of verification concentration tester 11 is consistent with the concentration of calibrating gas, as accurately then entering next step test procedure.
2, the test of preceding 1 minute narcosis gas output quantity of oxygen supply fast: at first Anesthesia machine is adjusted to the state that test condition requires, sets test point, the common gas vent 16 of Anesthesia machine inserts pick-up unit and links to each other with solenoid valve 1.Test is preceding with the unnecessary gas emptying in two collecting bags 5,6, waterline is adjusted to 0 scale, start solenoid valve 1, tested gas enters 5,1 minutes rear electromagnetic valves 1 of collecting bag and closes automatically, start solenoid valve 3 then, collecting bag 5 gaseous tensions that recording manometer 7 shows are regulated variable valve 8, measure the output concentration of anesthetic gases by concentration tester 11, unit of account time narcosis gas output quantity is finished first test procedure.
3, the test of narcosis gas output quantity after reaching during the oxygen supply fast: with collecting bag 5, gas emptying in 6, start solenoid valve 1, start the quick apparatus of oxygen supply of Anesthesia machine, 10 second rear electromagnetic valve 1 stop automatically, this moment, oxygen supply stopped immediately fast, simultaneously, solenoid valve 2 starts automatically, stops automatically after 30 seconds, record gas volume scale, open solenoid valve 3, record collecting bag 5 pressure are opened variable valve 8, gas concentration by concentration tester 11 test collecting bags 5, logging test results after stable, with collecting bag 5 gas emptyings, record collecting bag 6 gas volume scales, open solenoid valve 4, record collecting bag 6 gaseous tensions are regulated variable valve 8, by the gas concentration of concentration tester 11 test collecting bags 6, gas in the emptying collecting bag 6, calculate collecting bag 5 and collecting bag 6 narcosis gas output quantities respectively, collecting bag 5 is measured the narcosis gas output quantity during the quick oxygen supply in 10 seconds, the gas output quantity in 30 seconds after the quick oxygen supply of collecting bag 6 mensuration.
4 ,-and 10kPa stablizes the test of the gas output quantity under the air pressure: start negative pressure pump 15, set up in the water tank-the stable air pressure of 10KPa, after step is finished in the process 3, calculate collecting bag 5 and collecting bag 6 narcosis gas output quantities respectively, collecting bag 5 is measured 10 seconds-10kPa and stablize the narcosis gas output quantity under the air pressure, the gas output quantity in 30 seconds afterwards that collecting bag 6 mensuration-10kPa stablize air pressure.
For guarantee test result accurately, each measurement point should measure twice, and with the second time measurement data be as the criterion.
The volume of gas should be proofreaied and correct by the pressure of measuring, and guarantees that test environment is in 20 ℃ ± 3 ℃ state test down.
By the contrast of said process 2 and process 3 test datas, can detect during the quick oxygen supply and after the output quantity increment of anesthetic gases whether surpass 20%.
By the contrast of said process 2 and process 4 test datas, whether the output quantity increment that can detect anesthetic gases when air pressure fluctuation-10KPa surpasses 20%.
Claims (1)
1, a kind of pick-up unit of narcosis gas output quantity, comprise solenoid valve (1,2,3,4), water tank (12), it is characterized in that: described water tank (12) top indicates the volume scale, be provided with two collecting bags (5 in the water tank, 6), two collecting bags are immersed in the water tank fully, and the bottom of two collecting bags all is fixed on water tank bottom; First collecting bag (5) is communicated with the P end of first solenoid valve (1), the P end of the 3rd solenoid valve (3) respectively, second collecting bag (6) is communicated with the P end of second solenoid valve (2), the P end of the 4th solenoid valve (4) respectively, the R end of first solenoid valve (1) is communicated with the A end of second solenoid valve (2), and the R end of the 4th solenoid valve (4) is communicated with the A end of the 3rd solenoid valve (3); The A of first solenoid valve (1) is connected to the common gas vent of Anesthesia machine (16), the R of second solenoid valve (2) is connected to sewage draining exit (10), the R of the 3rd solenoid valve (3) is connected to normal concentration gas vent (17), the A end of the 4th solenoid valve (4) is communicated to concentration tester (11) through tensimeter (7), variable valve (8), flowmeter (9) successively, and the closed top end of water tank connects retaining valve (13), vacuum table (14), negative pressure pump (15) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810020290A CN100590394C (en) | 2008-02-29 | 2008-02-29 | Device for detecting narcosis gas output quantity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810020290A CN100590394C (en) | 2008-02-29 | 2008-02-29 | Device for detecting narcosis gas output quantity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101231186A CN101231186A (en) | 2008-07-30 |
| CN100590394C true CN100590394C (en) | 2010-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810020290A Expired - Fee Related CN100590394C (en) | 2008-02-29 | 2008-02-29 | Device for detecting narcosis gas output quantity |
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| Country | Link |
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| CN (1) | CN100590394C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101972506B (en) * | 2010-08-31 | 2012-11-07 | 深圳市普博科技有限公司 | Ventilating system of anesthesia apparatus and pressure calibration method thereof |
| CN102564521B (en) * | 2011-12-07 | 2014-01-15 | 深圳市普博科技有限公司 | Anesthetic dosage calculation method and anesthetic dosage calculation system for anesthesia machine |
| CN106769148B (en) * | 2016-12-29 | 2023-07-21 | 南京舒普思达医疗设备有限公司 | Safety and performance detection equipment for anesthesia respiratory system |
| CN106768055B (en) * | 2016-12-29 | 2023-09-19 | 南京舒普思达医疗设备有限公司 | Safety and performance detection equipment for anesthesia system |
| CN111565780B (en) | 2017-10-27 | 2023-02-21 | 深圳迈瑞生物医疗电子股份有限公司 | Anesthesia machine, anesthesia medicine output concentration monitoring method, system, equipment and storage medium |
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2008
- 2008-02-29 CN CN200810020290A patent/CN100590394C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101231186A (en) | 2008-07-30 |
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Owner name: JIANGSU KETE MEDICAL EQUIPMENT CO., LTD. Free format text: FORMER OWNER: ZHANG PEILIN Effective date: 20090605 |
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Effective date of registration: 20090605 Address after: Jiang Hua Zhen new town centre street in Jiangsu city of Taixing province No. 165 post encoding: 225444 Applicant after: Jiangsu Kaitai Medical Equipment Co., Ltd. Address before: Jiang Hua Zhen new town centre street in Jiangsu city of Taixing province No. 165 post encoding: 225444 Applicant before: Zhang Peilin |
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Owner name: JIANGSU LANDWIND KAITAI MEDICAL EQUIPMENT CO., LTD Free format text: FORMER NAME: JIANGSU KAITAI MEDICAL EQUIPMENT CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: Jiang Hua Zhen new town centre street 225444 No. 165 Jiangsu city of Taixing Province Patentee after: Jiangsu Landwind & KaiTai Medical Equipment Co., Ltd. Address before: Jiang Hua Zhen new town centre street 225444 No. 165 Jiangsu city of Taixing Province Patentee before: Jiangsu Kaitai Medical Equipment Co., Ltd. |
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| 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: 20100217 Termination date: 20170229 |