Harness System
A body-worn strap and cuff assembly used to suspend and control a body-powered upper-limb prosthesis through cable-driven mechanisms.
Full Definition
The harness system in upper-limb prosthetics anchors the prosthesis to the body and transmits excursion forces from shoulder and chest movements through a control cable to operate the terminal device or elbow unit. The most common configuration is the figure-of-eight harness, which loops around the contralateral axilla. Editors should note that 'harness' in this context is a technical prosthetics term and not interchangeable with 'suspension system', which more broadly describes how the socket is retained on the residual limb. Documentation should specify harness type, attachment points, and function in clinical records. The term is always used in the context of body-powered or hybrid prosthetic systems.
Usage
Usage note: Do not use 'harness' as a synonym for 'suspension'; in prosthetics, the harness transmits control forces, while the suspension system retains the socket on the residual limb.
In Context
- "The patient reported discomfort from the figure-of-eight harness system during overhead lifting tasks." — Upper-limb prosthetic clinic note
- "The author conflated 'harness system' and 'suspension system'; an editorial query clarified that these serve distinct mechanical functions." — Technical manuscript editorial query