An Adjusted Method of Photoplethysmography Detection in Poor Perfusion

Author

Fu, Xiuquan ; Tu, Yuewen ; Tang, Yawei ; Li, Dingli ; Jiang, Kai ; Chen, Hang ; Ye, Shuming

Author_Institution

Key Lab. of Biomed. Eng. of Minist. of Educ., Zhejiang Univ., Hangzhou, China

fYear

2011

fDate

10-12 May 2011

Firstpage

1

Lastpage

4

Abstract

Photoplethysmography (PPG) is an effective technique that can be used to detect blood volume changes in the microvascular bed of tissue. However, when the patients are in poor perfusion, the signal of PPG will be too weak to detect. So a dynamic variable amount of light detection method is designed to solve the problem. The method adjusts the hardware and software of original method. By using this method, the detector can detect the waveform of PPG more effectively, and greatly improve the accuracy of measurement. It has been used in clinical studies of surgical anesthesia, and achieved very good results.

Keywords

biological tissues; haemodynamics; photoplethysmography; blood volume change; light detection method; microvascular tissue bed; perfusion; photoplethysmography detection; Biomedical monitoring; Blood; Detectors; Differential amplifiers; Heuristic algorithms; Light emitting diodes; Noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioinformatics and Biomedical Engineering, (iCBBE) 2011 5th International Conference on

Conference_Location

Wuhan

ISSN

2151-7614

Print_ISBN

978-1-4244-5088-6

Type

conf

DOI

10.1109/icbbe.2011.5780311

Filename

5780311