Analysing the effects of cold, normal, and warm digits on transmittance pulse oximetry.

Musabbir Khan,Christopher G. Pretty,Alexander C. Amies,Rodney B. Elliot,Yeong Shiong Chiew,Geoffrey M. Shaw,J. Geoffrey Chase

Biomedical Signal Processing and Control（2016）

引用 24|浏览10

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摘要

•Investigated the effects of temperature on pulse oximeter signal quality in 20 healthy adults.•Signal quality may vary at normal site temperature, and is subject dependant.•Cold site temperature significantly degrades signal quality in general.•Warm site temperature significantly improves signal quality in general.•Warm site temperature (about 33°C) should be maintained for reliable pulse oximetry.

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关键词

Pulse oximetry,Non-invasive,Photoplethysmograph,Arterial blood oxygen saturation,Signal processing,Sensor,Thermocouple,Perfusion,Vasoconstriction,Vasodilation

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