Title :
Light-controlled retinal stimulator for subretinal implantation
Author :
Ohta, Jun ; Tokuda, Takashi ; Hiyama, Kohei ; Sawamura, Shigeki ; Kiyotaka ; Sasagawa ; Nishida, Kentaro ; Kitaguchi, Yoshiyuki ; Kamei, Motohiro ; Fujikado, Takashi ; Tano, Yasuo
Author_Institution :
Grad. Sch. of Mater. Sci., Nara Inst. of Sci. & Technol., Ikoma, Japan
Abstract :
We present a retinal stimulator embedded a light-controlled function for subretinal implantation. The stimulator is based on a multiple-microchip architecture which we have been developed to realize over 1000 stimulus electrodes. Each microchip is controlled retinal stimulation by the intensity of light. The fabricated stimulator is evaluated by implanting a rabbit eye and stimulating retinal cells. The EEP signals were successfully obtained.
Keywords :
biomedical electrodes; eye; prosthetics; visual evoked potentials; EEP signals; light intensity; light-controlled retinal stimulator; multiple-microchip architecture; rabbit eye; retinal cells; stimulus electrodes; subretinal implantation; Biomedical electrodes; Flexible printed circuits; Implants; Lighting control; Materials science and technology; Polyimides; Pulse width modulation inverters; Rabbits; Retina; Switches;
Conference_Titel :
Biomedical Circuits and Systems Conference, 2009. BioCAS 2009. IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-4917-0
Electronic_ISBN :
978-1-4244-4918-7
DOI :
10.1109/BIOCAS.2009.5372087
