Pressure sensor

Details Pressure sensor Pressure sensor

1978-08-07

1980-11-04

Howell, Kyle L.

Surgery

Truss

Pad

73729, 128659, A61B 500

Patent

active

042313767

ABSTRACT:
A pressure sensor apparatus primarily for sensing pressure in a body cavity such as the cranium, bladder or vena cava of an animal or human comprising a housing having a bellows defining a chamber within the housing. Means is provided for communicating pressure from the body cavity to the chamber. A radioactive material is housed in the housing and at least partially surrounded by radiation shielding. The radiation shielding shields the radioactive material as a function of the pressure sensed by the flexible member and the radioactivity is sensed by a radiation detector.

REFERENCES:
patent: Re26335 (1968-01-01), Chope
patent: 3034356 (1962-05-01), Bieganski et al.
patent: 3187181 (1965-06-01), Keller
patent: 3503402 (1970-03-01), Schulte
patent: 3625199 (1971-12-01), Summers
patent: 3686958 (1972-08-01), Porter et al.
patent: 3757770 (1973-09-01), Brayshaw et al.
patent: 3789667 (1974-02-01), Porter et al.
patent: 3834239 (1974-06-01), King
Bustard, T. S. et al., IEEE Trans. on Nucl. Science, vol. 21, No. 1, Feb., 1974, pp. 697-701.
Lyon, W. C., Hittman Associates Contract Report #AT(11-1)-3206, Jun., 1972.

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