Development and evaluation of a photometric fibre-optic sensor for monitoring abdominal organ photoplethysmographs and blood oxygen saturation

M. Hickey; N. Samuels; N. Randive; R. M. Langford; P. Kyriacou

doi:10.1117/12.834307

5 October 2009 Development and evaluation of a photometric fibre-optic sensor for monitoring abdominal organ photoplethysmographs and blood oxygen saturation

M. Hickey, N. Samuels, N. Randive, R. M. Langford, P. Kyriacou

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Proceedings Volume 7503, 20th International Conference on Optical Fibre Sensors; 75031N (2009) https://doi.org/10.1117/12.834307
Event: 20th International Conference on Optical Fibre Sensors, 2009, Edinburgh, United Kingdom

Abstract

A two wavelength photometric fibre-optic reflectance sensor was developed for assessing abdominal organ perfusion. In vitro tests showed that reliable photoplethysmographic (PPG) signals and blood oxygen saturation (SpO₂) values were recorded when the separation between emitting and receiving fibres was at 3mm and the emitting current was between 20mA-40mA. In a clinical study, good quality PPG signals were obtained from the small and large bowel of a patient undergoing laparotomy. Abdominal organ SpO₂ were in good agreement with those obtained from a commercial device. These observations suggest that the fibre-optic sensor may be suitable for monitoring abdominal organ perfusion.

Citation Download Citation

M. Hickey, N. Samuels, N. Randive, R. M. Langford, and P. Kyriacou "Development and evaluation of a photometric fibre-optic sensor for monitoring abdominal organ photoplethysmographs and blood oxygen saturation", Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75031N (5 October 2009); https://doi.org/10.1117/12.834307

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KEYWORDS

Sensors

Fiber optics sensors

Photoplethysmography

Blood oxygen saturation

Reflectivity

Tissues

In vitro testing

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