Patents Represented by Attorney Abert B. Cooper

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  • Device for monitoring cardiovascular signals and fiber optic coupler phonocardio sensor therefor
    Patent number: 5074309
    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.
    Type: Grant
    Filed: December 4, 1989
    Date of Patent: December 24, 1991
    Assignee: Sperry Marine Inc.
    Inventor: David W. Gerdt