Development of hydraulic bilateral-servo actuator for powered orthosis

Abstract

The development of a machine that supports the movement of the upper limbs has not proceeded for paraplegics. This is because a large output power is necessary in order to move a robot arm while supporting the paralysed body. We propose a new actuator system, called the Hydraulic Bilateral-Servo Actuator (HBSA) system, which has been developed in our laboratory to be applied to powered orthosis with seven degrees of freedom.