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Rehabilitation robots should be able to adapt with physical characteristics of patient body in order to provide a safe and comfortable interaction. In this paper, an elbow rehabilitation robot with novel cable-based series elastic actuator is proposed. The cable actuation mechanism provides two parameters to adjust actuation torque and joint stiffness. An independent position-stiffness control algorithm...
In this paper, a cable actuated elbow rehabilitation robot with integrated active and passive gravity compensation method is proposed. Passive method compensates for the weight of the robot and patient forearm, but full gravity compensation for different patient needs spring stiffness to be adjusted. It seems unreasonable to equip the rehabilitation robot with a different spring for each patient....
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