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Device for detecting narcosis gas output quantity

A technology of anesthetic gas and detection device, which is applied in measurement device, volume measuring instrument/method, liquid/fluid solid measurement, etc., can solve the problem of inability to implement, inability to accurately determine the output of anesthetic gas, lack of output of anesthetic gas, etc. problems, to achieve the effect of clear test principle, solution of hazards, and accurate measurement

Inactive Publication Date: 2008-07-30
江苏蓝韵凯泰医疗设备有限公司
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

At present, in this process, there is a lack of testing devices for anesthesia gas output, and anesthesia machine manufacturers, users, and testing agencies cannot accurately determine the output of anesthesia gas, making this standard unable to be implemented

Method used

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  • Device for detecting narcosis gas output quantity

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Effect test

Embodiment Construction

[0014] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0015] As shown in Figure 1, a detection device for anesthesia gas output includes solenoid valves 1, 2, 3, 4, water tank 12, two collection bags 5, 6, pressure gauge 7, regulating valve 8, flow meter 9, concentration Tester 11, one-way valve 13, negative pressure gauge 14, negative pressure pump 15, are provided with two collecting bags 5,6 in the water tank 12.

[0016] The testing process is as follows:

[0017] 1. Calibration of the concentration tester: pass the standard concentration gas into the detection device through the standard concentration gas outlet 17, adjust the regulating valve 8, and check whether the test result of the concentration tester 11 is consistent with the concentration of the standard gas. If it is accurate, enter The next step is to test the program.

[0018] 2. Test the output of anesthesia gas 1 minute before rapid oxyg...

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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 outlet of 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 [0001] The invention relates to a detection device for anesthetic gas output, in particular to a detection device for anesthetic gas output of an evaporator on an anesthesia machine before, during and after rapid oxygen supply. Background technique [0002] The effect of rapid oxygen delivery on an anesthetic gas delivery device (AVDD) may pose certain hazards. For example: if the anesthetic gas delivery device is installed downstream of the rapid oxygen supply, the high flow rate of oxygen can lead to an increase in its outlet concentration, and in some cases even cause liquid anesthetic to be discharged from the outlet of the anesthetic gas delivery device; if the gas circuit of the anesthesia system If the air resistance is too high, the anesthetic gas delivery device will produce a "pumping" phenomenon during rapid oxygen supply, which will lead to an increase in its outlet concentration. These hazards are required in the ISO8835-4:2004 "Anesthetic Vapor...

Claims

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Application Information

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IPC IPC(8): G01F22/02A61M16/01
Inventor 张培林
Owner 江苏蓝韵凯泰医疗设备有限公司
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