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Light-controlled retinal stimulation on rabbit using CMOS-based flexible multi-chip stimulator

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9 Author(s)
T. Tokuda ; Nara Institute Science and Technology, Takayama-cho 8916-5, Ikoma, Nara, 630-0192, Japan ; Y. Takeuchi ; T. Noda ; K. Sasagawa
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We implemented a light-sensing function on CMOS-based multi-chip stimulator for retinal prosthesis. Using the light-sensing circuitry attached to each stimulation electrode, the flexible multi-chip stimulator is capable of image-based patterned stimulation. We verified the function of the light-controlled decision based on the light intensity measured just beside the stimulation site. We also experimentally demonstrated in vivo retinal stimulation on rabbit's retina with light-controlled decision. The result of the present work is a simplified demonstration for the concept of retinal prosthesis with on-site imaging.

Published in:

2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society

Date of Conference:

3-6 Sept. 2009