Abstract
In a joint movement device for selective flexion and extension of a joint, a tendon is disposed adjacent to the first and second joint members. A tendon securing device is secured to the second joint member, the tendon being secured to the tendon securing device. At least one phalange ring is secured to a joint member and includes a tending routing mechanism configured to route the tendon through the phalange ring. An actuator is coupled to the tendon and pulls the tendon inwardly to cause the joint to flex. An elastic member is coupled to the phalange ring and tendon securing device and applies an extension force thereto, thereby causing the joint to extend when the actuator releases the tendon.