Device for monitoring cardiovascular signals and fiber optic cou

Details Device for monitoring cardiovascular signals and fiber optic cou Device for monitoring cardiovascular signals and fiber optic cou

1989-12-04

1991-12-24

Pellegrino, Stephen C.

Surgery

Truss

Pad

128714, 128687, 128691, 73705, 25022714, 25022724, 25022728, 2502311, A61B 502

Patent

active

050743090

ABSTRACT:
Cardiovascular sounds from a patient's body are monitored by placing a fiber optic coupler sensor at an appropriate location on the patient to sense the sounds. The sensor is comprised of all dielectric material having a variable coupler waist region encapsulated in material with index of refraction that varies with applied stress. Stress is induced in the encapsulating material in response to the cardiovascular sounds. Sensor configurations include encapsulating material membranes with curved surfaces to enhance sensitivity.

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