Title :
Sensory feed-back in hybrid orthotic system
Author :
Popovic, Dejan ; Schwirtlich, Laszlo
Author_Institution :
Fac. of Electr. Eng., Belgrade Univ., Yugoslavia
Abstract :
Motor restoration of paralyzed humans using a hybrid orthotic system (HOS) known as artificial reflex control is discussed. Artificial reflex control is a nonnumerical procedure requiring sensory information. The sensory information for a hybrid brace combining functional electrical stimulation and an externally controlled modular brace consists of ground force record, angular displacement from the gravity line, joint angles and electromyogram (EMG) signals. Sensors for the HOS are described. The use of an EMG monitor is believed to increase the efficacy of the HOS by reducing muscle fatigue, increasing safety, and reducing the use of external power. External power is used only in that phase of the gait in which muscular function is not adequate
Keywords :
feedback; orthotics; angular displacement; artificial reflex control; electromyogram; externally controlled modular brace; functional electrical stimulation; gait phase; gravity line; ground force record; hybrid brace; hybrid orthotic system; joint angles; muscular function; nonnumerical procedure; paralyzed humans; sensory feedback; sensory information; Control systems; Displacement control; Electromyography; Force control; Force sensors; Gravity; Humans; Neuromuscular stimulation; Orthotics; Sensor phenomena and characterization;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.96296
