Abstract:
This paper contains results on the design of electrical signals for delivering charge through electrodes to achieve neural stimulation while reducing the peak electrode v...Show MoreMetadata
Abstract:
This paper contains results on the design of electrical signals for delivering charge through electrodes to achieve neural stimulation while reducing the peak electrode voltage. A generalization of the usual constant current stimulation phase to a stepped current waveform is presented. Techniques based on optimization and linear dynamic system theory are then applied to design the magnitude of each current segment in such a way as to minimize the maximum electrode voltage, while transferring a designated quantity of charge in a specified time. Experimental results are provided which validate the approach in saline and in neural tissue.
Published in: IEEE Transactions on Biomedical Engineering ( Volume: 57, Issue: 9, September 2010)