Procedure for manufacture of a prosthesis

Abstract

Procedure for the manufacture of an artificial leg with a sleeve for the fixing of the artificial limb to the remaining part of the leg, in which the procedure embraces the manufacture of a positive model of the extremity which is used for forming the sleeve which is built into the artificial limb. The purpose of the invention is to facilitate individual adaptation concerning the form of the sleeve so that total surface contact is achieved against the leg, and also to reduce the manual work and the risk of failure. The invention is characterized by the sleeve being manufactured from an injection moulded standard sleeve of clear thermoplastic material with truncated conic form which forms an inner sleeve in the finished sleeve. The inner sleeve is roughly shaped after the model in heated condition and is tried on the leg, when any deviations in form and irregularities in contact pressure are established by visual inspection through the clear material of the inner sleeve, after which the shape is finally adjusted in one or more steps. When essentially total surface contact has been achieved the inner sleeve is strengthened externally by laminating and is built into the artificial limb.