Pressure detection arrangement

Details Pressure detection arrangement Pressure detection arrangement

1979-06-22

1981-09-01

Howell, Kyle L.

Surgery

Truss

Pad

128748, 128678, 73731, 116270, A61B 510

Patent

active

042866030

ABSTRACT:
A pressure detection arrangement embedded between the skin of a portion of the body and a means used to surround and/or immobilize that particular part of the body, such as a cast. The pressure detection arrangement is a bifurcated capsule having a reservoir cavity and an indicator cavity. A colored fluid is initially contained only within the reservoir cavity by either a frangible disc across the conjunction of the indicator cavity with the reservoir cavity or an extensible bladder within the reservoir cavity. The indicator cavity is transparent or translucent and protrudes through the case to regions external thereto.
If there is swelling of the limb due to medical complications, the skin presses against the capsule and either breaks the fringible disc allowing the colored fluid to pass into the indicator cavity or forces the extensible bladder into the indicator cavity of the capsule. Both methods provide a visual indication in the indicator cavity of excessive pressure on the limb.

REFERENCES:
patent: 618049 (1899-01-01), Barnard et al.
patent: 1900286 (1933-03-01), Huber et al.
patent: 2039337 (1936-05-01), Nolan
patent: 2566369 (1951-09-01), Putman
patent: 3625199 (1971-12-01), Summers
patent: 4022190 (1977-05-01), Meyer
patent: 4172449 (1979-10-01), LeRoy et al.

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