04923475 is referenced by 95 patents and cites 6 patents.

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.

Title
Inflatable limb prosthesis with preformed inner surface
Application Number
7/312448
Publication Number
4923475
Application Date
February 21, 1989
Publication Date
May 8, 1990
Inventor
Hugh Herr
R.D. 1, Box 272, Holtwood, 17532
PA, US
Barry M Gosthnian
5211 E. Trindle Rd., Apt. 3, Mechanicsburg, 17055
PA, US
Agent
John G Gilfillan III
IPC
A61F 2/78
A61F 2/80
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