Multi-finger structure and pulsed-powering operation scheme for CMOS LSI-based flexible stimulator for retinal prosthesis.
Multi-finger structure was proposed to improve flexibility of the CMOS LSI-based multi-chip retinal stimulator. A dual-finger retinal stimulator was fabricated and its functionality was demonstrated in retinal stimulation experiments on rabbit's retina, We also proposed an idea of pulsed-powering operation scheme for the multi-chip flexible retinal stimulator. We compared the pulsed-powering scheme with conventional one in a simulation, and show that the pulsed-powering can be an alternative operation scheme for the neural stimulator that provides an improved safety to the biological tissue.
Tokuda
T
T
Nara Institute Science and Technology, Takayama-cho 8916-5, Ikoma 630-0192, Japan. tokuda@ms.naist.jp
Asano
R
R
Hiyama
K
K
Terasawa
Y
Y
Nishida
K
K
Kitaguchi
Y
Y
Fujikado
T
T
Tano
Y
Y
Ohta
J
J
D000465:Algorithms; D000818:Animals; D004056:Differential Threshold; D004558:Electric Stimulation / Q000295:instrumentation* / Q000379:methods; D004599:Electric Stimulation Therapy / Q000295:instrumentation* / Q000379:methods; D004867:Equipment Design; D005074:Evoked Potentials, Visual / Q000502:physiology*; D019736:Prostheses and Implants; D011817:Rabbits; D012160:Retina / Q000033:anatomy & histology / Q000502:physiology*; D012666:Semiconductors; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation; D012984:Software; D013813:Therapy, Computer-Assisted / Q000295:instrumentation* / Q000379:methods; D014793:Visual Cortex / Q000502:physiology*