Surgery – Truss – Pad
Patent
1990-11-30
1992-10-27
Kamm, William E.
Surgery
Truss
Pad
128687, 128748, A61B 5021
Patent
active
051580918
ABSTRACT:
A tissue contact stress sensing system incorporates a semiconductor assembly and a continuous diaphragm to noninvasively determine the intra-arterial blood pressure of a patient. The system comprises a continuous diaphragm placed against a patient's tissue which covers an underlying artery. The semiconductor assembly is placed in close proximity to and spaced apart from the diaphragm for directly irradiating the diaphragm with electromagnetic radiation and receiving a portion of the electromagnetic radiation which is reflected from the continuous diaphragm. The disclosed system also utilizes a technique for minimizing the system errors associated with temperature drift and aging of the sensor.
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Butterfield Robert D.
Holdaway Charles R.
Martin Stephen A.
Pytel Kenneth J.
IVAC Corporation
Kamm William E.
Pontius Kevin
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