Author/Editor		Rozman, J; Ačimovič-Janežič, R; Tekavčič, I; Kljajić, M; Trlep, M
Title		Implantable stimulator for selective stimulation of the common peroneal nerve: a preliminary report
Type		članek
Source		J Med Eng Technol
Vol. and No.		Letnik 18, št. 2
Publication year		1994
Volume		str. 47-53
Language		eng
Abstract		We present details of the modelling, design, and experimental testing of an implantable system with a monopolar half-cuff electrode for selective stimulation of fibres within certain superficial regions of the human common peroneal nerve which is capable of making a selective activation of muscles, thus contributing to strong dorsal flexion and moderate eversion of the hemiplegic foot. The development of the cuff electrode was based partly on data obtained from histological examination of human common peroneal nerves, and from previously described models of excitation of myelinated nerve fibres. The modelling objectives were to determine the electric field that would be generated within the deep peroneal branch of the nerve by a monopolar half-cuff electrode installed on the nerve behind the lateral head of the fibula. The extent of initial excitation of the nerve fibres within the superficial region of the deep peroneal branch elicited by a monopolar half-cuff electrode was predicted. In the past 6 months two systems were implanted. In both patients significant improvements of gait dynamics were observed.
Descriptors		ELECTRIC STIMULATION THERAPY ELECTRODES, IMPLANTED MUSCLES PERONEAL NERVE ACTION POTENTIALS ANKLE JOINT AXONS BIOMEDICAL ENGINEERING ELECTRIC CONDUCTIVITY EQUIPMENT DESIGN FOOT GAIT HEMIPLEGIA MODELS, NEUROLOGICAL MUSCLES NERVE FIBERS NEURAL CONDUCTION PERONEAL NERVE SURFACE PROPERTIES