Intracranial pressure gauge

Details Intracranial pressure gauge Intracranial pressure gauge

1980-01-17

1982-10-19

Howell, Kyle L.

Surgery

Truss

Pad

73729, A61B 500

Patent

active

043545068

ABSTRACT:
The present disclosure is directed to an intracranial pressure gauge which comprises a powerless resonance circuit composed of a coil and a condenser; a sensor equipped with a pressure-sensitive section capable, when implanted under the scalp, of changing either the inductance of the said coil or the capacitance of the said condenser in response to a change in intracranial pressure; and a grid dip meter capable of externally measuring the change in the resonance frequency of said sensor.

REFERENCES:
patent: 3958558 (1976-05-01), Dunphy et al.
patent: 4026276 (1977-05-01), Chubbuck
patent: 4062354 (1977-12-01), Taylor et al.
patent: 4127110 (1978-11-01), Bullara
patent: 4206762 (1980-06-01), Cosman
patent: 4265252 (1981-05-01), Chubbuck et al.
Zervas, N. T. et al, "A Pressure-Balanced Radio-Telemetry System for the Measurement of ICP", Jrnl Neurosurgery V.47 Dec. 1977, pp. 899-911.

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