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Powered functional total lower-limb orthoses designed for external modification of the structural and/or functional characteristics of the lower limbs using power (usually electric) sources and powered mechanisms that respond to muscular bioelectric (i.e., myoelectric) signals. These devices provide support, supplement, and/or augment the limb functions and/or its structure. These orthoses typically consist of dynamic wearable devices that include a computerized control unit, appropriate software, an actuator, myoelectric sensors, power sources, motors, and a variety of mechanisms appropriate to facilitate the normal function of otherwise disabled one or both lower limbs. Myoelectric powered lower-limb orthoses are mainly used to make gait possible.
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