Spiral sensor

Details Spiral sensor Spiral sensor

1992-02-06

1993-05-04

Cohen, Lee S.

Surgery

Truss

Pad

128721, A61B 5103

Patent

active

052072304

ABSTRACT:
A sensor has a transducer film attached substantially along a spiral cord. The spiral cord provides flexibility in attaching the sensor to a body portion, and provides that multiple, individual sections along the length thereof come into contact with the patient. The transducer film preferably comprises a piezo film with a metallization surface on each side thereof. A wire conductor is attached along the length of the outer metallization surface to maintain conductive integrity under expected stress levels and situations. In another embodiment, plural layer sensors are formed, having two or more transducer films placed one on top of the other along the length of the sensor, or selected portions of the sensor length.

REFERENCES:
patent: 4381788 (1983-05-01), Douglas
patent: 4600017 (1986-07-01), Schroeppel
patent: 4690143 (1987-09-01), Schroeppel
patent: 4807640 (1989-02-01), Watson et al.
patent: 4815473 (1989-03-01), Watson et al.
patent: 4817625 (1989-04-01), Miles
patent: 5070882 (1991-12-01), Bui et al.

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