Expired air analysis device and method

An analysis device and analysis method technology, applied in the field of medical testing, can solve the problems of poor accuracy of electronic nose and high cost of GC, and achieve high accuracy, good response and cost reduction

Active Publication Date: 2012-10-24
THE HONG KONG POLYTECHNIC UNIV
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  • Abstract
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is that, aiming at the defects of high GC cost and poor accuracy of electronic nose in the prior art, on the basis of analyzing the components in the exhaled breath and the gas components that can characterize the disease, specially select the components that are sensitive to these components The chemical sensor provides a breath analysis device with low cost and high accuracy at the same time

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  • Expired air analysis device and method
  • Expired air analysis device and method
  • Expired air analysis device and method

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Embodiment Construction

[0043] figure 1 is a flowchart of the breath analysis method of the present invention, figure 2 is a schematic block diagram of a preferred embodiment of the breath analysis device of the present invention, image 3 is the schematic cross-sectional view of the chemical sensor chamber, Figure 4 is a schematic diagram of a breath collection device according to an embodiment of the present invention, Figure 5 is a schematic diagram of a breath collection device according to another embodiment of the present invention, Figure 6 is a schematic diagram of a breath sampling device according to an embodiment of the present invention.

[0044] The breath analysis device of the present invention comprises a breath unit, a chemical sensor unit, a signal transmission unit and an evaluation unit. The exhalation unit comprises an exhalation sampling device 60 (see Figure 6 ) and breath sampling device 23 (see figure 2 ), the exhalation breath sampling device is exhausted into th...

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Abstract

The invention discloses an expired air analysis device and method. The expired air analysis device comprises an expiration unit, a chemical sensor unit, a signal transmission unit and an evaluation unit. The expiration unit includes an expired air sample introduction apparatus for discharging expired air into the chemical sensor unit. The chemical sensor unit includes a chemical sensor chamber equipped with a chemical sensor array consisting of at least one chemical sensor, and a sensor measuring device for measuring the interaction between the expired air and the chemical sensor array. The signal transmission unit sends a signal output by the sensor measuring device to the evaluation unit, which receives the signal from the signal transmission unit and makes an evaluation. The expired air analysis method is accomplished by using the expired air analysis device. The device of the invention has the advantages of low cost, high accuracy, and generation of data with comparability, thus being suitable for popularization and application.

Description

technical field [0001] The invention relates to the field of medical detection, in particular to a breath analysis device and method. Background technique [0002] In recent years, the application of breath analysis in medicine and clinical pathology has received more and more attention. Breath measurement has great potential in both disease diagnosis and monitoring treatment. Compared to other traditional methods such as blood and urine tests, breath analysis is non-invasive, real-time, and minimally harmful to the subject and the person taking the sample. [0003] It has been reported that exhaled nitric oxide, hydrogen, ammonia, carbon monoxide, sulfide, and some volatile organic compounds such as acetone and pentane are related to people's health status and can be used as medical biological characteristics of some diseases. For example, nitric oxide is produced primarily in the bronchial system and can be measured to detect asthma or other conditions characterized by a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
Inventor 张大鹏郭冬敏
Owner THE HONG KONG POLYTECHNIC UNIV
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