Calorimetric detection apparatus for acetone in breathing gas

A technology of breathing gas and detection device, which is applied in the field of medical detection to achieve accurate results

Inactive Publication Date: 2013-08-07
QINGDAO UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Existing patents (an acetone gas sensor detection device, ZL 201120494048.4; flexible electronic nose for non-destructive br

Method used

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  • Calorimetric detection apparatus for acetone in breathing gas
  • Calorimetric detection apparatus for acetone in breathing gas
  • Calorimetric detection apparatus for acetone in breathing gas

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Embodiment Construction

[0024] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings, and the content of the present invention will be illustrated by the following in conjunction with specific embodiments, rather than limiting the scope of the present invention.

[0025] Such as figure 1 As shown, the calorimetric detection device for acetone in respiratory gas of the present invention includes a blowing pipe 1, a one-way valve 2, a buffer airbag 3, a gas processing unit 4, an adsorption chamber 5, a reference chamber 6, a thermal sensor 7, and a thermostatic block 8 , signal acquisition and processing unit 9, expert system 10, computer 11, gas pump 12 and shut-off valve 13, wherein blowing pipe 1, one-way valve 2, buffer air bag 3, gas processing unit 4, are connected to adsorption chamber 5 and reference in turn Chamber 6, the carrier gas nitrogen passes through the shut-off valve 13, the gas pump 12, the buffer air bag 3, th...

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PUM

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Abstract

The invention relates to a calorimetric detection apparatus for acetone in breathing gas. The calorimetric detection apparatus comprises carrier gas, a breathing gas collection unit, an adsorption chamber, a reference chamber, thermal sensors, a constant temperature block, a signal acquisition and processing unit, an expert system and a microcomputer, wherein the carrier gas carries breathing gas collected by the breathing gas collection unit and flows through the adsorption chamber and the reference chamber, a signal difference between the thermal sensors in the adsorption chamber and the reference chamber is used as a system response signal, and the content of acetone is determined through the expert system. The calorimetric detection apparatus provided by the invention has the advantages of a calorimetric method, employs simple and reliable detection principles and is beneficial for rapid measurement, application in a mobile occasion and development of a micro-miniature system; the expert system is cooperatively used to analyze the content of acetone and determining diabetes, and obtained results are accurate; and the calorimetric detection apparatus is non-intrusive, causes no injury and pains, can be used for clinical diagnosis and monitoring in a hospital and for family rehabilitation and monitoring and is capable of realizing telemedicine.

Description

technical field [0001] The invention relates to a calorimetric detection device for acetone in respiratory gas used for diabetes diagnosis, belonging to the field of medical detection. Background technique [0002] Diabetes has become the second major disease that endangers human health. Early diagnosis of diabetes is of great significance for improving the clinical treatment effect, improving the quality of life of diabetic patients and prolonging their life span. The clinical detection of diabetes is represented by the detection technology of glucose content in blood. It needs to collect the blood of the testee, which is easy to cause pain to the testee. At the same time, the test cycle is long, which is not convenient for rapid clinical diagnosis and general diabetes screening of large populations. [0003] The concentration of acetone gas in the breath of diabetic patients is significantly higher than that of normal people. The acetone content in human breath gas is the ...

Claims

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Application Information

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IPC IPC(8): G01N25/48
Inventor 郑艺华刘君
Owner QINGDAO UNIV
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