Abstract:
Body harnesses control body-powered and hybrid prostheses of the upper
extremities. They transfer muscular forces from the amputee through motion of the
shoulder girdle or stump directly to the artificial limb. The development of body
harnesses requires not only to look at technical possibilities, but even more
important, to take the biomechanical abilities of the patient into consideration.
Different tests were performed to identify typical motion patterns of the patients and
to measure the forces produced thereby.
Founded on the results of this biomechanical study and the comparison between
different harnesses, a new above elbow body harness has been developed. It was
ergonomically optimised to provide a more efficient force transmission. Modern
materials and easily replaceable axillar pads complete the advantages and support
today’s hygienic aspects. There are new accessories available allowing easy and
fast adaptation of the harness to patient and prostheses without any need for
sewing.
