Body powered prostheses
uses specific muscles to place tension on the cable to either open or close the terminal device
Two types of Body powered prostheses
hook and prosthetic hand
Voluntary closing body operated TD
hook remains opened until tension is placed on cable to close it
Voluntary opening body operated TD
hook is closed until tension is placed on cable then it opens
this is more common
Hook TD
hook with slanted fingertips, easier to see during functional tasks lyre shaped hook: cylindrical grasp
Transradial body-powered prostheses
uses humeral flexion and scapular abduction for tension of cable
Transhumeral body-powered prostheses
uses humeral flexion, scapular abduction, scapular depression, shoulder extension, and abduction to unlock and lock the elbow
Myoelectric Prostheses
Muscle contractions of two different muscle groups are used to control TD
Transradial Myoelectric powered prostheses
uses wrist flexors and extensors to control TD
transhumeral Myoelectric powered prostheses
uses biceps and triceps to control TD
Hybrid Prosthesis
combination of body-powered and electrical-powered
Most common for elbow or above-elbow amputations
