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Proceedings Paper

New fiber optic sensor for ambulatory entero-gastric reflux detection
Author(s): Paolo Bechi; Riccardo Falciai; Francesco Baldini; Franco Cosi; Filippo Pucciani; Sergio Boscherini
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Paper Abstract

The problem of entero-gastric reflux is clinically relevant and none of the presently available techniques for its detection is satisfactory. Therefore, a portable fiber optic system for ambulatory reflux assessment has been conceived and developed. Two light emitting diodes (for signal and reference) and a suitable electronic circuit for signal processing are associated with a plastic fiber optic bundle. The working principle of the system is based on the characteristic absorption of bilirubin and bile around 450 nm. In-vitro results have shown good accuracy, linearity, and stability in the measurements of the fiber optic system. In-vivo results are promising.

Paper Details

Date Published: 16 April 1992
PDF: 6 pages
Proc. SPIE 1648, Fiber Optic Medical and Fluorescent Sensors and Applications, (16 April 1992); doi: 10.1117/12.58293
Show Author Affiliations
Paolo Bechi, Univ. di Firenze (Italy)
Riccardo Falciai, Istituto di Ricerca sulle Onde Elettromagnetiche/CNR (Italy)
Francesco Baldini, Istituto di Ricerca sulle Onde Elettromagnetiche/CNR (Italy)
Franco Cosi, Istituto di Ricerca sulle Onde Elettromagnetiche/CNR (Italy)
Filippo Pucciani, Univ. di Firenze (Italy)
Sergio Boscherini, Prodotec Srl (Italy)


Published in SPIE Proceedings Vol. 1648:
Fiber Optic Medical and Fluorescent Sensors and Applications
Douglas R. Hansmann; Fred P. Milanovich; Gerald G. Vurek; David R. Walt, Editor(s)

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