/* width: 493px; height: 316px; */
Body-Powered

A body-powered prosthesis does not rely on an outside power source and is operated via a system of cables, harnesses, and sometimes, manual control. Exaggerated movements of the body are used to control the prosthesis and these movements are captured by harness systems and cables. These systems then operate the hand, or terminal, device. Examples of these exaggerated movements are:

  • Bi scapular abduction/adduction
  • Glen humeral flexion to operate terminal device and elbow
  • Shoulder depression to lock and unlock elbow

To effectively control this type of prosthesis the user must possess significant strength and control over various body parts, including the shoulders, chest, and residual limb. There must be sufficient limb length, musculature, and range of motion.

The functional envelope refers to where the prosthesis must be placed, in reference to the user’s body. When wearing a body-powered prosthesis, the functional envelope is limited to directly in front of the user, from waist level to mouth level. The user can no longer maintain control of the prosthesis when attempting to operate the prosthesis out to the side, down by the feet, or above the head.

Fine motor skills can be challenges with this type of prosthesis, because the user has little control over grip strength or speed. The benefits of this type of system are durability, weight and cost.

Westcoast Team Building Fun

All work and no play is not the motto at Westcoast Brace & Limb. So what better way to kick off spring, then to host a company-wide Cornhole Tournament. Cornhole, otherwise known as bean bag toss, is a … MORE >


VIEW ARCHIVES >
Journey
journey_tag_small

Journey is a five year old golden retriever born with most of his left front paw missing. He was brought to Westcoast Brace & Limb three years ago and successfully fitted with a custom designed, high-tech prosthetic paw, … MORE >



VIEW MORE PATIENT TESTIMONIALS >
  • 30 Sep 2017, 08:00 am
    Save the Date! CEU Saturday more
VIEW MORE UPCOMING EVENTS >