Preform for making a prosthetic limb socket

Details Preform for making a prosthetic limb socket Preform for making a prosthetic limb socket

B - Operations, Transporting

29

B

B29B 11/08 (2006.01) A61F 2/60 (2006.01) B29C 45/14 (2006.01) B29C 45/26 (2006.01)

Patent

CA 2399490

A preform for making a prosthetic limb socket includes an injection molded flat circular disk of rigid thermoplastics material, and the disk has a peripheral portion with an embedded reinforcing ring which was spaced as an insert within the mold cavity. The preform is heated within an oven on a flat surface support ring, and the softened disk is manually drawn and stretched downwardly over a positive model of a residual limb while vacuum is introduced through small holes within the model to form a plastic socket which conforms to the positive model. After the plastic cools, the annular base portion of the disk with the embedded reinforcing ring is trimmed from the socket, and the model is removed from the socket.

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