S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Electrical and Computer Engineering (전기·정보공학부) Journal Papers (저널논문_전기·정보공학부)
An implantable retinal stimulator design for long-term animal experiments
- Zhou, J. A.; Park, S. I.; Seo, J. M.; Lee, S. W.; Kim, E. T.; Chung, H.; Kim, Sung June
- Issue Date
- The 2007 International Conference of Systems Biology and Bioengineering, London, U.K., July 2-4, 2007
- electrical neural stimulation; neural prosthesis; long-term animal experiment; neural implant system; RF telemetry
- this article reports on an electrical retinal
stimulation system for use in long-term animal electrical
stimulation experiments. The presented system consists of
an implantable stimulator, which provides continuous
electrical stimulation and an external component, which
provides preset stimulation parameters and power to the
implanted stimulator via a paired RF (radio frequency) coil.
A rechargeable internal battery and a parameter memory
part were introduced to the implantable stimulator to avoid
use of the external component during the stimulation cycles.
The same inductive coil pair was used to pass the
parameter data and to recharge the battery. To separate
the stimulation mode and the battery recharging mode, a
switch circuit is used. The implantable stimulator was
implemented with IC chips and the electronics except the
stimulation electrodes were hermetically packaged in a
biocompatible metal case.