Surgery – Truss – Pad
Patent
1981-02-05
1983-05-31
Cohen, Lee S.
Surgery
Truss
Pad
128660, A61B 510
Patent
active
043856365
ABSTRACT:
An improvement in design of an implantable telemetric differential pressure sensing device enabling thinner, more compact, and simplified construction for the device; increased pressure sensitivity and range of measurement; and a wider class of applications for such pressure sensing devices in diagnostic medicine and clinical monitoring. The implanted device includes a thin, planar, closed, conductive loop which moves with a flexible diaphragm, the diaphragm moving upon changes in the difference of two bodily pressures on its opposite sides. The position of the conductive loop relative to a resonant circuit fixed in the device determines the resonant frequency of the resonant circuit. The resonant frequency is detected telemetrically outside the body, and its value is used to determine the difference in the two bodily pressures.
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patent: 4062354 (1977-12-01), Taylor et al.
patent: 4114606 (1978-09-01), Seylar
patent: 4127110 (1978-11-01), Bullara
patent: 4265252 (1981-05-01), Chubbuck et al.
patent: 4281666 (1981-08-01), Cosman
Birch Richard J.
Cohen Lee S.
Sykes Angela D.
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