Profile: J.E. Hanger Ltd. offers a variety of services which include manufacturing of orthotic and prosthetic devices. Our motorized wheelchairs are designed to allow maximum independence for the active individual. A prosthesis is an orthodedic device that replaces a limb or body part to allow a patient to actively execute his or her daily activities. The orthesis supports or protects a limb or body part while the prosthesis actually replaces the limb or body part. An orthotic device or orthosis is an orthopedic instrument that is applied externally to the limb or body in order to provide support, protection or to facilitate rehabilitation and better the lives of people in need.