Micro-circulation of skin blood: optical monitoring by advanced photoplethysmography techniques

Janis Spigulis; Renars Erts; Uldis Rubins

doi:10.1117/12.498725

18 April 2003 Micro-circulation of skin blood: optical monitoring by advanced photoplethysmography techniques

Janis Spigulis, Renars Erts, Uldis Rubins

Proceedings Volume 5119, Bioengineered and Bioinspired Systems; (2003) https://doi.org/10.1117/12.498725
Event: Microtechnologies for the New Millennium 2003, 2003, Maspalomas, Gran Canaria, Canary Islands, Spain

Abstract

Blood micro-circulation in upper skin layers has been studied experimentally in real time by advanced two-channel photoplethysmography (PPG) techniques. The blood volume changes caused by micro-vessel expansion and dilution during the cardiac cycles have been detected by infrared optical contact sensors. A newly developed portable monitoring device comprising a lap-top computer was used for accumulation and processing of the bio-signals. Shapes of the PPG signals detected at different sites of the body were compared with these obtained by computer modeling.

Citation Download Citation

Janis Spigulis, Renars Erts, and Uldis Rubins "Micro-circulation of skin blood: optical monitoring by advanced photoplethysmography techniques", Proc. SPIE 5119, Bioengineered and Bioinspired Systems, (18 April 2003); https://doi.org/10.1117/12.498725

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