Haematic pH sensor for extracorporeal circulation

Luca Ferrari; Paola Fabbri; Luigi Rovati; Francesco Pilati

doi:10.1117/12.906562

28 February 2012 Haematic pH sensor for extracorporeal circulation

Luca Ferrari, Paola Fabbri, Luigi Rovati, Francesco Pilati

Proceedings Volume 8214, Advanced Biomedical and Clinical Diagnostic Systems X; 82140E (2012) https://doi.org/10.1117/12.906562
Event: SPIE BiOS, 2012, San Francisco, California, United States

Abstract

The design and realization of an optical sensor for measuring haematic pH during extracorporeal circulation is presented. It consists of a chemical sensing element in contact with the blood, an interrogation optical head to externally probe the sensing element and the front-end electronics to acquire and process the information of interest. The fluorescein O-methacrylate 97% is used as the indicator. The developed system has been tested in-vitro and on an in-vivo animal model. It showed a linear behavior in the haematic range of interest with a mean error lower than 0.01 units of pH.

Citation Download Citation

Luca Ferrari, Paola Fabbri, Luigi Rovati, and Francesco Pilati "Haematic pH sensor for extracorporeal circulation", Proc. SPIE 8214, Advanced Biomedical and Clinical Diagnostic Systems X, 82140E (28 February 2012); https://doi.org/10.1117/12.906562

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