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Pulse oximetry optical sensor using oxygen-bound haemoglobin

Cohen, Z. J. V, Haxha, Shyqyri, Aggoun, A. (2016) Pulse oximetry optical sensor using oxygen-bound haemoglobin. Optics Express, 24 (9). pp. 10115-10131. ISSN 1094-4087. (doi:10.1364/OE.24.010115) (KAR id:55484)

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In this paper we report a unique approach to measuring oxygen saturation levels by utilising the wavelength of the haemoglobin instead of the conventional absorption difference. Two experiments are set up to measure the wavelength of the haemoglobin bound to oxygen at different oxygen saturation levels with the help of a spectrometer. We report a unique low cost and robust wavelength monitoring SpO2 sensor that measures the SpO2 by using the colour of the blood and not the absorption difference of oxyhaemoglobin and deoxyhaemoglobin. With use of a spectrometer, we show that the wavelength of the oxygen-bound haemoglobin has a relation to the oxygen saturation level. The proposed device is designed and experimentally implemented with a colour sensor to measure the SpO2 level of the blood.

Item Type: Article
DOI/Identification number: 10.1364/OE.24.010115
Subjects: T Technology
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: Tina Thompson
Date Deposited: 17 May 2016 15:16 UTC
Last Modified: 16 Feb 2021 13:35 UTC
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