Utah Elbow

Elbow, Peter. 2005. A friendly challenge to push the outcomes statement further. In The outcomes book Debate and consensus after the WPA outcomes statement, edited by Susanmarie Harrington, Keith Rhodes, Ruth Fischer, and Rita Malenczyk, 177-90. Logan, UT Utah State University Press. 

FIGURE 70.6 The Utah arm is a self-contained battery powered artificial arm-hand complex. The system comprises myoelectric control of the elbow, wrist, and grasping movements. 

The ServoPro, an exclusive feature of the Utah Arm, is designed for amputees with shoulder disarticulation, interscapulothoracic, or brachial plexus injuries. The ServoPro eliminates the electrodes normally required to operate the Utah Arm. The system may be the only option, which can provide functional control of both elbow and hand. The ServoPro is based on a harness, but instead of cables, electronic components are pushed and pulled to generate command signals that will control the electrically powered prosthesis. The ServoPro requires much smaller excursion of movement and less effort compared with body-powered cables in equivalent mechanical systems. The servo control is accurate and it uses feedback from sensors in the elbow and hand. 

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