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EMG controlled neuroprosthesis for grasping

Author(s):

T. Keller
Conference/Journal:

Automatisierungstechnische Verfahren für die Medizin, Munich, Germany, Technische Universität München.
Abstract:

A three channel functional electrical stimulation system with surface electrodes was developed and tested to give complete C4 and C5 tetraplegic patients the possibility of grasping. The neuroprosthesis is controlled by activation of the contralateral deltoid muscle. The benefits of this system are: 1) restoration of the lost function of grasping; 2) natural and easy trainable control of hand opening and closing; 3) smooth adjustment of grasping force; 4) the system takes the advantage of human control; 5) easy integration in a micro-controlled device. Functional tests with C4 to C5 complete tetraplegic patients showed that there is a improvement in the inde-pendence of the patient for everyday tasks. The limitations of the system are not the fatigue of finger flexors and extensors, but the fatigue of the voluntary controlled arm movements. For C4 to C6 complete tetraplegic patients grasping neuroprostheses offer more functionality and independence and therefore the acceptance of such a device can be expected.

Further Information
Year:

1997
Type of Publication:

(06)Talk
Supervisor:



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