Surgery – Truss – Pad
Patent
1983-06-22
1985-12-10
Cohen, Lee S.
Surgery
Truss
Pad
128748, 73740, A61B 502
Patent
active
045572690
ABSTRACT:
The disposable transducer includes a small housing constructed of lightweight plastic material. The housing is shaped so as to form a transparent chamber within which is situated a very small piezoresistive strain gauge in the form of a resistive bridge network diffused onto a semiconductor substrate. The semiconductor substrate is electrically isolated by means of a nonconductive gel which partially fills the transparent chamber in which the semiconductor substrate is positioned. The resistive bridge network of the semiconductor substrate is also electrically connected to a plurality of calibration resistors which are separately formed on the semiconductor substrate, making the entire apparatus economically disposable after a single use.
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Reynolds Gordon S.
Russell Edward J.
Todd Robert J.
Abbott Laboratories
Beiser Robert S.
Cohen Lee S.
Roth Michael J.
Sykes Angela D.
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