Abstract: The apparatus provides active and passive exercise to the hand and wrist of a patient afflicted with the symptoms of reflex sympathetic dystrophy. The apparatus employs a hand or wrist glove to be worn by the patient's affected hand, the back of which is attached through an arm to a central post and the distal portion encasing the fingers, is attached to a vertical handle, which is rotated about the post, serving as the axis of rotation. A torque sensor is coupled to the motor shaft to measure the degree of patient input from a programmed speed and force rate by sensing the active input of the patient and reducing the motor input to the cycle allowing the patient to “drive” the exercise.

Abstract: The apparatus provides active and passive exercise to the hand, wrist and forearm of the patient. It has dual handles and an attached inertia apparatus such that both the affected arm and the non affected arm are subjected to the therapy. It is theorized that in the retraining of nerve, muscle and ligament/tendon function there is cross-training of right-left part of the systems and the healthy system can assist the afflicted part of the system in retraining. The apparatus addresses specifically the range of motion of the wrist, both for flexion-extension and pronation-supination. For pronation-supination, two conical handles, one for each hand is attached through an axis to a gear system connected to a flywheel. The gear/flywheel system allows for clockwise and counterclockwise rotations of the flywheel. The patient puts the system in motion by rotating the handles in either a clockwise or counterclockwise direction. The rotary (oscillating) motion is transferred to the flywheel through the gears.