A New Fiber Optic Catheter-Tip Blood Pressure Transducer And Factors Determining Its Performance

Weimin Shi; Kun Shen; John K-J. Li; George H. Sigel Jr.

doi:10.1117/12.963200

13 February 1990 A New Fiber Optic Catheter-Tip Blood Pressure Transducer And Factors Determining Its Performance

Weimin Shi, Kun Shen, John K-J. Li, George H. Sigel Jr.

Proceedings Volume 1172, Chemical, Biochemical, and Environmental Fiber Sensors; (1990) https://doi.org/10.1117/12.963200
Event: OE/FIBERS '89, 1989, Boston, United States

Abstract

Rapid development of fiber optic sensing technology promises better devices for medical practice. In this paper, a new fiberoptic catheter-tip blood pressure transducer is presented. During measurement, pressure is applied through a side port to a cantilever structure to cause a combined linear and angular displacement of the optical fibers with respect to a fixed reflector, thus modulating the input carrier light. At the signal processing module, a signal proportional to the applied pressure is generated. Factors affecting the performance of the new transducer have been carefully examined during its development and are discussed. In-vitro experimental results have demonstrated the promising performance of this transducer. It is capable of direct blood pressure measurement for assessment of cardiac and arterial functions.

Citation Download Citation

Weimin Shi, Kun Shen, John K-J. Li, and George H. Sigel Jr. "A New Fiber Optic Catheter-Tip Blood Pressure Transducer And Factors Determining Its Performance", Proc. SPIE 1172, Chemical, Biochemical, and Environmental Fiber Sensors, (13 February 1990); https://doi.org/10.1117/12.963200

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