This study focuses on three nascent but robust categories within this sector: powered exoskeletons (wearable, powered machines that consist of an outer frame, a power supply that contributes a portion of the energy to move the exoskeleton’s limbs, and a variety of controllers, motors and sensors that work in harmony to provide added strength, endurance or protection to the wearer); advanced powered upper-limb prostheses (primarily medical devices that provide lifelike arm and hand functionality that goes far beyond the traditional "hook and claw" mechanical prosthetic arms and hands commonly used by amputees), and ocular sensory-substitution devices to help the blind to "see" in some form or fashion.
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