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Title

Near-infrared transmittance pulse oximetry with laser diodes

AuthorsLópez Silva, Sonnia María ; Dotor, María Luisa ; Silveira, Juan Pedro
KeywordsPulse oximetry
Laser diodes
Near infrared
Optical sensor
Issue DateJul-2003
PublisherThe International Society for Optics and Photonics
CitationJournal of Biomedical Optics 8(3): 525–533 (2003)
AbstractPulse oximeters are widely used for noninvasive monitoring of oxygen saturation in arterial blood hemoglobin. We present a transmittance pulse oximetry system based on near-infrared (NIR) laser diodes (750 and 850 nm) for monitoring oxygen saturation of arterial blood hemoglobin. The pulse oximetry system is made up of the optical sensor, sensor electronics, and processing block. Also, we show experimental results obtained during the development of the whole NIR transmittance pulse oximetry system along with modifications in the sensor configuration, signal processing algorithm, and calibration procedure. Issues concerning wavelength selection and its implications for the improvement of the transmittance pulse oximetry technique are discussed. The results obtained demonstrate the proposed system’s usefulness in monitoring a wide range of oxygen saturation levels
Publisher version (URL)http://dx.doi.org/10.1117/1.1578495
URIhttp://hdl.handle.net/10261/46918
DOI10.1117/1.1578495
ISSN1083-3668
E-ISSN1560-2281
Appears in Collections:(IMN-CNM) Artículos
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