Surgery – Truss – Pad
Patent
1980-09-12
1983-10-04
Cohen, Lee S.
Surgery
Truss
Pad
128748, 73706, 73726, A61B 502
Patent
active
044072961
ABSTRACT:
A hermetically sealed pressure transducer suitable for implantation in a human body. A pressure sensitive circuit is fabricated using contemporary silicon technology. The pressure sensitive circuit is sealed in an oil-filled chamber formed within a titanium cylinder having a glass substrate bottom and a thin titanium top. According to one embodiment, the pressure sensitive circuit contains a sealed inner chamber at a known pressure, thereby measuring pressure relative to a known value. A second embodiment vents the pressure sensitive circuit to produce a relative pressure measurement. A grill protects the assembly and aids insertion into the desired area. A lead connects the transducer to an implantable sensing circuit.
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Breimayer Joseph F.
Cohen Lee S.
Duthler Reed A.
Medtronic Inc.
Rooney John L.
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