DEVELOPMENT AND OPERATION OF PORTABLE AND LABORATORY ELECTRICAL-STIMULATION SYSTEMS FOR WALKING IN PARAPLEGIC SUBJECTS

Two stimulation systems designed for use in functional neuromuscular stimulation of paralyzed people are discussed. One is portable and one is a nonportable laboratory system. Compared to previous systems, these have greatly enhanced capabilities, especially in terms of memory capacity, expandability, and user interface. They are extensively operator programmable. The laboratory stimulation system was designed to provide quick turnaround time for stimulation pattern or program changes while maintaining complete compatibility with the portable system. The lab system also accommodates external closed-loop control