1 research outputs found
Near-infrared transmittance pulse oximetry with laser diodes
Pulse 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
levelsSMLS is supported by Programa Ramo´n y Cajal from the
Spanish Ministry of Science and Technology.Peer reviewe