Surgery – Truss – Pad
Patent
1989-01-25
1990-08-14
Hindenburg, Max
Surgery
Truss
Pad
128773, 381169, 381187, A61B 502
Patent
active
049478591
ABSTRACT:
This invention provides a sound sensor apparatus for reception of bio-acoustic signals from the body of a patient and for use with a medical diagnostic device. The apparatus comprises a unitary containment structure of a pliable, adhering material for conforming placement on the patient body surface. A sound sensing transducer is embedded in the containment structure to receive and convert bio-acoustic signals to electrical signals. A cable is communicatively linked to the sound sensing transducer for transmitting the electrical signals to the medical diagnostic device. The composition of the pliable containment structure material is a polymeric mixture substantially acoustically matched to the patient body. The sound sensing transducer is preferably a piezoelectric crystal transducer constructed of a composite material which comprises at least 65 percent by weight lead, at least 20 percent by weight zirconium, and at least 10 percent by weight titanium.
REFERENCES:
patent: 3387149 (1968-06-01), Young
patent: 4556066 (1985-12-01), Semrow
patent: 4672976 (1987-06-01), Kroll
Balmaseda, M. T., et al., Ohio State University, Ultrasound Therapy: A Comparative Study of Different Coupling Media, 1986.
Shimada, J., et al., U.S. patent application for Bio-Acoustic Transmission Medium, Filing Date: 3/24/89, Ser. No. 07/328,167.
Brewer James E.
Kroll Mark W.
Cherne Medical, Inc.
Eggink Anthony G.
Hindenburg Max
Lacyk John P.
Skinner Joel D.
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