Abstract

The main purpose of this paper is to develop a novel experimental design of knee prosthesis for trans-femoral amputees, which uses a geared linkage in order to generate a rotational movement of the knee joint. The geared linkage with linear actuator can reproduce an approximately linear transmission function for a very large rotation angle. This property of the geared linkage allows an easier control of the walking gait. Such prosthesis becomes active by empowering it with an electro-pneumatic circuit and an electro-pneumatic control unit, which allows the control of the swing phase.

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