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A cortical stimulator with monitoring capabilities using a novel 1 Mbps ASK data link

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3 Author(s)
J. Coulombe ; Dept. of Electr. Eng., Ecole Polytechnique de Montreal, Que., Canada ; J. -F. Gervais ; M. Sawan

We present a wireless cortical stimulator comprising a plurality of multi-channel micro-stimulators allowing flexible placement of electrodes. These devices perform stimulation, and allow measurement of voltage or stimulating current at any electrode. Power and bi-directional data are managed by an Interface Module. Decoding of the ASK modulated carrier uses a low-power digital technique. A data rate higher than I Mbps is obtained. With its configurable protocol, a 1000 electrodes system is feasible with the proposed approach. Experimental results from a reduced size prototype combining integrated Stimulating Modules and a discrete components Interface Module are shown.

Published in:

Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on  (Volume:5 )

Date of Conference:

25-28 May 2003