What is harness in prosthesis?

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The prosthesis is suspended on the residual limb by the intimacy of the socket fit and by a system of Dacron straps collectively referred to as a “harness.” In a well-designed harness the same straps are strategically positioned in relation to the shoulder girdle and/or thorax so that the amputee can control the …

What is a Transhumeral prosthesis?

A transhumeral prosthesis helps to replace the function of a missing anatomical segment(s) from below the shoulder to (and including) the hand. How it is powered. Type of control system for these prostheses are dependent on the needs, functions, and goals of each patient.

What is a transradial amputee?

A transradial amputation is a surgical procedure in which the radius and ulna (bones of the lower arm) are cut, and the lower portion of these bones and the hand are removed from the body.

How does myoelectric prosthesis work?

How does it work? A myoelectric prosthesis uses the existing muscles in your residual limb to control its functions. One or more sensors fabricated into the prosthetic socket receive electrical signals when you intentionally engage specific muscles in your residual limb.

What are the four main types of artificial limbs?

There are four main types of prosthetics. These are known as transradial, transhumeral, transtibial, and transfemoral prosthetics. Each prosthetic serves a different function depending on what body part was amputated.

What are the requirements of a prosthesis harness?

When planning and making any harness, the prosthe-tist should examine the location of each element to ensure proper function with the expenditure of minimum effort on the part of the particular wearer concerned. The first and most simple requirement of any harness is that it must hold the prosthesis securely on the stump.

What is a figure eight harness?

The figure-eight pattern, of which Fig. 2 presents a typical example, is the harness most commonly used in the unilateral below-elbow case, the axilla on the sound side being the site of anchor for capturing the relative motion. The front view of Fig. 2 shows the suspension portion of the harness.

What are the disadvantages of figure-of-8 harnesses?

A major disadvantage of the standard figure-of-8 harness for transradial amputees relates to the axilla loop. The axillary portion of the loop should always be padded and worn on top of an undergarment.

Is the standard figure-of-8 harness suitable for unilateral transhumeral amputees?

The standard figure-of-8 harness is suitable for and acceptable to the great majority of unilateral transhumeral amputees. However, the unilateral transhumeral amputee who, on a regular basis, engages in unusually strenuous physical activity may find the standard harness uncomfortable.