Prosthetic socket containing inflatable means

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/80 (2006.01) A61F 2/78 (2006.01) A61F 2/50 (2006.01)

Patent

CA 2162464

A composite socket member for a residual limb comprises an outer socket (20) which defines an inner cavity (22) generally conforming to the outer surface of a residual limb; an inner socket (40) which defines an inner cavity (42) conforms to the shape of said outer socket, and when nested within the cavity of the outer socket, defines an airspace (33) between the inner surface of the outer socket and the outer surface of the inner socket; and an inflatable bladder (30) disposed between the inner surface (28) of the outer socket and the outer surface of the inner socket. The inner socket (60) contains at least one flex area (74, 76, 78) in its sidewall at a pre-selected weight bearing location whereby upon inflation of said bladder, pressure is applied by the bladder against the sidewall at the pre-selected weight bearing location of the residual limb. A method for making the composite socket member is also disclosed.

L'invention se rapporte à un logement articulaire composite pour un moignon, ce logement étant constitué: par un logement articulaire externe (20) qui définit une cavité interne (22) épousant généralement la forme de la surface externe d'un moignon; par un logement interne (40) qui définit une cavité interne (42) épousant la forme du logement articulaire externe et qui, lorsqu'il est logé dans la cavité du logement externe, définit un espace libre (33) entre la surface interne du logement externe et la surface externe du logement interne; et par une vessie gonflable (30) disposée entre la surface interne (28) du logement externe et la surface externe du logement interne. Le logement articulaire interne (60) comporte au moins une zone de flexion (74, 76, 78) dans sa paroi latérale en un point de soutien de la charge présélectionné, de sorte que, en se gonflant, la vessie applique une pression contre ladite paroie latérale au niveau dudit point de support de la charge préselectionné sur le moignon. Un procédé pour fabriquer ce logement articulaire composite est également décrit.

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