Apparatus for sensing pressure

Details Apparatus for sensing pressure Apparatus for sensing pressure

1974-07-16

1977-05-10

Howell, Kyle L.

Surgery

Truss

Perineal

73393, 73406, 128 205D, 128 205E, 250336, A61B 500

Patent

active

040221903

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 diaphragm dividing the interior of the housing into two chambers. A member containing filter material is connected to the housing and communicates with one of the chambers formed in the housing. The other chamber contains radioactive fluid and is connected to a variable volume chamber that receives a volume of radioactive fluid which is proportional to the pressure sensed by the flexible member. A radiation detector senses the volume of radioactive fluid in the variable volume chamber.

REFERENCES:
patent: 3034356 (1962-05-01), Bieganski et al.
patent: 3503402 (1970-03-01), Schulte
patent: 3625199 (1971-12-01), Summers
patent: 3625199 (1971-12-01), Summers
patent: 3686958 (1972-08-01), Porter et al.
patent: 3693407 (1972-09-01), McWhorter et al.
patent: 3693612 (1972-09-01), Donahoe et al.
patent: 3789667 (1974-02-01), Porter et al.

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