To measure blood flow rate in ex-vivo circulation, we propose an optical Doppler flowmeter based on the self-mixing effect within a laser diode (SM-LD). Advantages in adopting SM-LD techniques derive from reduced costs, ease of implementation and limited size. Moreover, the provided contactless sensing allows sensor reuse, hence further cost reduction. Preliminary measurements performed on bovine blood are reported, thus demonstrating the applicability of the proposed measurement method.
Blood flow measurement in extracorporeal circulation using self-mixing laser diode / Cattini, Stefano; Michele, Norgia; Alessandro, Pesatori; Rovati, Luigi. - STAMPA. - 7572:(2010), pp. 75720A-75720A-11. (Intervento presentato al convegno SPIE PW: Optical Diagnostics and Sensing X: Toward Point-of-Care Diagnostics tenutosi a San Francisco, CA, usa nel 8 February 2010) [10.1117/12.840240].
Blood flow measurement in extracorporeal circulation using self-mixing laser diode
CATTINI, Stefano;ROVATI, Luigi
2010
Abstract
To measure blood flow rate in ex-vivo circulation, we propose an optical Doppler flowmeter based on the self-mixing effect within a laser diode (SM-LD). Advantages in adopting SM-LD techniques derive from reduced costs, ease of implementation and limited size. Moreover, the provided contactless sensing allows sensor reuse, hence further cost reduction. Preliminary measurements performed on bovine blood are reported, thus demonstrating the applicability of the proposed measurement method.
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