Development of a portable FES system for the paralyzed extremities

Abstract
To enable paralyzed patients to carry out activities of daily life using functional electrical stimulation (FES) whenever or wherever they want, the authors have developed a multichannel portable FES system (16 channels, 9 cm*14.5 cm*4.5 cm in size, and about 500 g in weight). Neuromuscular stimulation data for individual patients were fed into this FES system, resulting in smooth and skilful movement control in a hemiplegic and a quadriplegic patient. Because this system could be easily carried or installed in a wheelchair, patients were able to use it everywhere.