Design of a pulse oximeter used to low perfusion and low oxygen saturation

Tan, S.; Ai, Z.; Yang, Y.; Xie, Q.

Zhongguo Yi Liao Qi Xie Za Zhi 37(3): 189-193; 196

2013


ISSN/ISBN: 1671-7104
PMID: 24015612
Document Number: 663982
This paper presents a new pulse oximeter used to low perfusion at 0.125% and wide oxygen saturation range from 35% to 100%. In order to acquire the best PPG signals, the variable gain amplifier(VGA) is adopted in hardware. The self-developed auto-correlation modeling method is adopted in software and it can extract pulse wave from low perfusion signals and remove motion artifacts partly.

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