Publication Type:

Conference Paper

Source:

IEEE International Instrumentation and Measurement Technology Conference, IEEE (2011)

Keywords:

arterial blood, attenuation, Biomedical equipment, Biomedical signal processing, Blood, calibration, detector sensitivity, Detectors, Equations, Fingers, haemodynamics, interfering parameters, intervening tissue, light attenuation, mathematical model, Non-invasive measurement, noninvasive method, Optical sensors, oxygen saturation, oxygen saturation measurement, photoelectric devices, Photoelectric plethysmography, Photoplethysmography, popular photoelectric plethysmographic principle, PPG sensor, prototype pulse oximeter, pulse oximeter, skin colour, source intensity

Abstract:

A novel and noninvasive method of estimation of oxygen saturation in arterial blood (SpO2), employing the popular photoelectric plethysmographic (PPG) principle, is presented here. Based on a refined model for the attenuation of light in a PPG sensor, a simple method of computation of SpO2 that is not influenced by interfering parameters of a patient such as skin colour and quantum of intervening tissue between the source and the detector in a PPG sensor as well as sensor dependent parameters such as source intensity and detector sensitivity is identified. Preliminary results obtained on a prototype pulse oximeter, built and tested, demonstrate the practicality of the proposed method.

Cite this Research Publication

K. A. Reddy, George, B., Dr. Madhu Mohan N., and Kumar, V. J., “A novel method for the measurement of oxygen saturation in arterial blood”, in IEEE International Instrumentation and Measurement Technology Conference, 2011.

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