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Transcutaneous Functional Electrical Stimulation (FES) System for Motor Rehabilitation


T. Keller

Los Angeles, USA, Seminar at the Alfred Mann Institute, University of Southern California.

The improvement of upper and lower extremity motor functions is one of the important goals in the rehabilitation of subjects with a central nervous system (CNS) lesion as it increases their independence in daily life activities. FES is a method used to contract paralyzed muscles in order to generate or improve motor functions as for example walking or hand grasp lost by the injury or disease. In this talk a FES system and man machine interfaces developed by the Rehabilitation Engineering Group at the Swiss Federal Institute of Technology (ETHZ) and the University Hospital Balgrist, Zurich and the application in spinal cord injured (SCI) subjects will be presented. Both neuroprostheses for walking and for hand grasp were developed and applied in a clinical environment on more than 20 subjects. The neuroprosthesis for walking uses a reliable gait phase detection system to automatically trigger the four gait phases: liftoff, swing, heal strike and stance. The neuroprosthesis for hand grasp can be controlled either by a push button, EMG, voice or a sliding resistor. The system can be used as a training tool or a permanent aid. The high flexibility of the portable multi channel system allows one to perform coordinated multi joint actuation and control enabling synergistic movements.

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Type of Publication:

(05)Plenary/Invited/Honorary Lecture

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