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A Suprachoroidal Electrical Retinal Stimulator Design for Long-Term Animal Experiments and

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dc.contributor.authorZhou, Jing Ai-
dc.contributor.authorWoo, Se Joon-
dc.contributor.authorPark, Se Ik-
dc.contributor.authorKim, Eui Tae-
dc.contributor.authorSeo, Jong-Mo-
dc.contributor.authorChung, Hum-
dc.contributor.authorKim, Sung June-
dc.date.accessioned2009-08-27T04:08:40Z-
dc.date.available2009-08-27T04:08:40Z-
dc.date.issued2008-02-
dc.identifier.citationJournal of Biomedicine and Biotechnology, vol. 2008, Article ID 547428, 2008en
dc.identifier.issn1110-7251-
dc.identifier.urihttps://hdl.handle.net/10371/7924-
dc.description.abstractThis article reports on a retinal stimulation system for long-term use in animal electrical stimulation experiments. The presented
system consisted of an implantable stimulator which provided continuous electrical stimulation, and an external component which
provided preset stimulation patterns and power to the implanted stimulator via a paired radio frequency (RF) coil. A rechargeable
internal battery and a parameter memory component were introduced to the implanted retinal stimulator. As a result, the external
component was not necessary during the stimulation mode. The inductive coil pair was used to pass the parameter data and to
recharge the battery. A switch circuit was used to separate the stimulationmode fromthe battery recharging mode. The implantable
stimulator was implemented with IC chips and the electronics, except for the stimulation electrodes, were hermetically packaged
in a biocompatible metal case. A polyimide-based gold electrode array was used. Surgical implantation into rabbits was performed
to verify the functionality and safety of this newly designed system. The electrodes were implanted in the suprachoroidal space.
Evoked cortical potentials were recorded during electrical stimulation of the retina. Long-term follow-up using OCT showed no
chorioretinal abnormality after implantation of the electrodes.
en
dc.description.sponsorshipThis work was supported by the Korean Science and Engineering
Foundation (KOSEF) through the Nano Bioelectronics
and Systems Research Center (NBS-ERC) of Seoul
National University under Grant No. R11-2000-075-01001-
0 and by the Ministry of Health & Welfare (South Korea)
through the Nano Artificial Vision Research Center under
Grant of the Korea Health 21 R&D Project (A050251). This
material was presented, in part, at The World Congress on
Engineering (ICSBB 2007), July 2007.
en
dc.language.isoen-
dc.publisherHindawi Publishing Corporationen
dc.titleA Suprachoroidal Electrical Retinal Stimulator Design for Long-Term Animal Experiments anden
dc.typeArticleen
dc.contributor.AlternativeAuthor우세준-
dc.contributor.AlternativeAuthor박세익-
dc.contributor.AlternativeAuthor김의태-
dc.contributor.AlternativeAuthor서종모-
dc.contributor.AlternativeAuthor정흠-
dc.contributor.AlternativeAuthor김성준-
dc.identifier.doi10.1155/2008/547428-
Appears in Collections:
College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Electrical and Computer Engineering (전기·정보공학부)Journal Papers (저널논문_전기·정보공학부)
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