Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Leg – Socket holder
Patent
1985-10-31
1987-04-07
Apley, Richard J.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Leg
Socket holder
A61F 280
Patent
active
046557792
ABSTRACT:
An air system prosthesis for amputees includes a hollow body with stiff peripheral walls and an open end and a cup shaped partition defining with the walls a first socket. A hollow stump support second socket with stiff peripheral walls is snugly nested within the first socket upon the partition. The second socket includes spaced apart inner and outer walls with cup shaped closed ends interconnected and hermetically sealed at their other ends defining a continuous air chamber between the inner and outer walls adapted to snugly and frictionally receive a human stump. A manually operated air pump and pressure relief valve is mounted upon the outer wall having a normally closed air passage adapted for applying pressurized air to the chamber and for selectively exhausting air therefrom. A modified prosthesis includes a partition wall having a cup shaped closd end spaced from the inner wall and connected and hermetically sealed at its other end to the inner wall defining a liquid chamber adpated to retain a quantity of liquid material for cushioning the stump within the second socket.
REFERENCES:
patent: 3393407 (1968-07-01), Kandel
patent: 3671980 (1972-06-01), Baird
patent: 3889301 (1975-06-01), Bonner
patent: 4232459 (1980-11-01), Vaccari
Apley Richard J.
Prizant James
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