Study on a non-invasive wide-range blood oxygen saturation detecting method and its instrument design.
- Author:
Feng ZHOU
1
;
Ding-Li LI
;
Yan LI
;
Lei XING
;
Shu-Ming YE
;
Hang CHEN
Author Information
1. College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou 310027.
- Publication Type:Journal Article
- MeSH:
Equipment Design;
Oximetry;
instrumentation;
methods
- From:
Chinese Journal of Medical Instrumentation
2008;32(1):23-25
- CountryChina
- Language:Chinese
-
Abstract:
This paper proposes a nonlinear method of detecting the blood oxygen saturation (SpO2) in a wide range on the basis of spectrophotometry, solves the nonlinear problem in detecting SpO2 in a wide range, and improves the applicable range and detection precision. CAN bus communication and DSP fast digital signal processing are utilized in the design of a non-invasive pulse blood oxygen saturation (SpO2) monitor in a wide range, which has a measure error below 3% within a range of 35% approximately 100%, and is applicable for clinical monitoring and detection of cosmonauts' physiological signals. This oximeter's components and their functions are also introduced in detail in the paper.
