Three wavelength optical oxymetry including the measurement of carboxyhemoglobin concentration

Christian Pieralli; Robert Devillers; Gilbert M. Tribillon; Jean-Claude Barthelemy; Andre Geyssant

doi:10.1117/12.201253

10 February 1995 Three wavelength optical oxymetry including the measurement of carboxyhemoglobin concentration

Christian Pieralli, Robert Devillers, Gilbert M. Tribillon, Jean-Claude Barthelemy, Andre Geyssant

Proceedings Volume 2331, Medical Sensors II and Fiber Optic Sensors; (1995) https://doi.org/10.1117/12.201253
Event: International Symposium on Biomedical Optics Europe '94, 1994, Lille, France

Abstract

The measurement of blood component concentrations is of great interest for medical applications such as anaesthetizing monitoring, heart disease evolution, respiratory insufficiency, etc. The common system is the spectroscopic analysis of blood samples. Analyzing the absorption versus wavelengths permits the determination of blood component concentrations by comparison to the theoretical extinction coefficients of the investigated components. The functional saturation rate of oxyhemoglobin HbO₂ called SfO₂ is therefore accessible. A new system is presented in this paper utilizing three laser diodes at wavelengths 660, 830, and 1060 nm. We have, therefore, access to a supplementary parameter which is the concentration of carboxyhemoglobin HbCO. The set-up can be portable because it utilizes small light sources, optical fibers, and integrated electrical supply and signal processing device. The performances reach a SfO₂ resolution of 2% and 1% on HbCO measurement.

Citation Download Citation

Christian Pieralli, Robert Devillers, Gilbert M. Tribillon, Jean-Claude Barthelemy, and Andre Geyssant "Three wavelength optical oxymetry including the measurement of carboxyhemoglobin concentration", Proc. SPIE 2331, Medical Sensors II and Fiber Optic Sensors, (10 February 1995); https://doi.org/10.1117/12.201253

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