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Proceedings Paper

Studies of blood gas determination and intelligent image
Author(s): Chih-Cheng Wang; Xiaogang Jin
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Paper Abstract

A fiberoptic sensor (FOS) has been developed. In recent years , progress has been made in the understanding the theory of laser absorption and emission and the electronic components and fiberoptic necessary to make up a useful instrument. The technique has been an analytical method of major importance in the areas of geochemistry , biomedical and blood gas analysis. According to the type of variables to be measured , the wide range classes of biomedical optical fiber sensor can be defined. Biomedical sensors can be used for oxygen saturation , pH, P02 , PCO2 measurement. Blood gas sensors make use of an appropriate reversible reagent fixed at a fiber end , which modulates the light , and allow spectrophotometric or fluorimetric analysis. An example of such a device would be a pH sensor based on an immobilized dye whose color or fluorescence properties vary with pH. The term optrode is used to describe these devices ; probe radiation=detected radiation + reagent phase. The instrumentation for fiberoptic based on medical sensors can be simple or complex according to the particular applications. Laser excitation may be used for long-distance transmission of excitation radiation or for getting a useful signal from a small amount of reagent.

Paper Details

Date Published: 1 August 1991
PDF: 4 pages
Proc. SPIE 1572, International Conference on Optical Fibre Sensors in China OFS(C) '91, (1 August 1991); doi: 10.1117/12.50078
Show Author Affiliations
Chih-Cheng Wang, Wuhan Tongji Medical Univ. (China)
Xiaogang Jin, Wuhan Univ. of Hydraulic and Electric Engineering (China)

Published in SPIE Proceedings Vol. 1572:
International Conference on Optical Fibre Sensors in China OFS(C) '91
Brian Culshaw; Yanbiao Liao, Editor(s)

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