Inflatable limb prosthesis with preformed inner surface

Details Inflatable limb prosthesis with preformed inner surface Inflatable limb prosthesis with preformed inner surface

1989-02-21

1990-05-08

Frinks, Ronald L.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Leg

Socket holder

A61F 280, A61F 278

Patent

active

049234757

ABSTRACT:
A prosthesis having a stump-receiving socket and a plurality of inflatable bladders with a means for the user to vary the pressures therein. The inflatable bladders each include a relatively soft, flexible membrane made of a suitable material such as polyurethane. The membranes are shaped to meet the anatomical characteristic of the wearer. Those membranes located adjacent the weight-bearing portions of the stump will provide a relatively soft uniform surface to support the stump. For those locations near the weight-bearing portions of the stump that should not be subjected to pressures, the adjacent bladder areas are non-inflatable and, therefore, not force inducing. The static pressures in the various bladders are independent of each other and may be regulated by the user.

REFERENCES:
patent: 3393407 (1968-07-01), Kandel
patent: 4432101 (1984-02-01), Johnson

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