Compliant lightweight actuator designs for robotic assistance and rehabilitation exoskeletons

Abstract

This paper presents the design of a compliant, lightweight and adaptable active ankle foot orthosis (AAFO) and two iterations of the conceptual design of an active knee actuator. The actuators are designed to keep their torque to weight as low as possible. The adaptability of the AAFO allows adjusting the device to different patients, without the need of customized versions. The knee actuators are designed for 2 exoskeleton prototypes that will be used for assistance of people with muscle weakness and for gait rehabilitation of incomplete spinal cord injury (iSCI) patients.