Title :
Sensitive and selective neural control using an intraneural multielectrode stimulation device in silicon technology
Author :
Rutten, W.L.C. ; van Wier, H.J. ; Put, J.H.M. ; Meier, J.H.
Author_Institution :
Dept. of Biomed. Eng., Twente Univ., Enschede, Netherlands
Abstract :
The ideal neural stimulatory information transducer must be able to activate individual neural fibers within a fascicular bundle, for example in a sensory or motor nerve. In a local approach using microelectrodes it is sufficient to apply current pulses to one neural node in order to reach the stimulatory threshold of the so-called activating functions. To this end, a multielectrode array in silicon technology is being inserted into a fascicle. It is one out of several possible approaches using silicon technology. This report focuses on the sensitivity and selectivity of such a neuro-electronic interface, using monopolar cathodic stimulation pulses at one or two electrodes. A test for selectivity has been developed, using refractory properties. One conclusion is that beyond an electrode separation of 250- mu m, selectivity becomes maximal.<>
Keywords :
biocontrol; neurophysiology; Si technology; current pulses; electrode separation; fascicle; intraneural multielectrode stimulation device; monopolar cathodic stimulation pulses; motor nerve; multielectrode array; neural fibres activation; neural node; neural stimulatory information transducer; neuroelectronic interface; refractory properties; sensory nerve;
Conference_Titel :
Engineering in Medicine and Biology Society, 1988. Proceedings of the Annual International Conference of the IEEE
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-0785-2
DOI :
10.1109/IEMBS.1988.94914