Mecanismo de ayuda a la extensión para pierna ortopédica
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This document shows the process of designing the mechanism to aid the extension for orthopedic leg. This mechanism will allow the user to walk at a speed higher than that fixed by the orthopedic leg. It’s placed on the upper part of the orthopedic prosthesis. By moving a cam driven by an electronically controlled motor, it would displace a wire coupled to the lower of the prosthesis. Which, develops an additional force to the natural movement of the prosthesis, at the time of extension. Through anatomical studies, mechanical studies and theoretical calculations, the mechanism were designed. Using the data obtained in the studies and the results of the calculations, the necessary parts for the mechanism were designed. An anatomical study was also carried out, with the help of an orthopedist, who contrasted the calculations made.