6533b824fe1ef96bd12814b0
RESEARCH PRODUCT
Multi-spectral photoplethysmography technique for parallel monitoring of pulse shapes at different tissue depths
Janis SpigulisEdgars Kviesis-kipgeOskars RubenisUldis RubinsLasma Asaresubject
Materials scienceLaser diodePulse (signal processing)lawPhotoplethysmogramAnalytical chemistryMulti spectralPulse shapingSignalPhotodiodelaw.inventionSemiconductor laser theoryBiomedical engineeringdescription
A photoplethysmography (PPG) signal can provide very useful information about a subject's hemodynamic status in a hospital or home environment. A newly developed portable multi-spectral photoplethysmography device has been used for studies of 11 healthy subjects. Multi-spectral photoplethysmography (MS-PPG) biosensor intended for analysis of peripheral blood volume pulsations at different vascular depths has been designed and experimentally tested. Multi-spectral monitoring was performed by means of a three–wavelengths (405 nm, 660 nm and 780 nm) laser diode and a single photodiode with multi-channel signal output processing. The proposed methodology and potential clinical applications are discussed.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-06-09 | Clinical and Biomedical Spectroscopy and Imaging II |