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Patent Searching and Data


Title:
VISUAL SENSE REGENERATION ASSIST DEVICE
Document Type and Number:
Japanese Patent JP2009268834
Kind Code:
A
Abstract:

To provide a visual sense regeneration assist device capable of efficient electric stimulation of cells constructing retina even electrodes are distantly positioned from the retina.

The visual sense regeneration assist device includes a plural number of electrodes placed in choroid coat or sclera to electrically stimulate cells constructing the retina of the patient in a predetermined pattern form, a control means connected to the electrodes for outputting electrically stimulated pulse signals from the electrodes, and feedback electrodes for forming an electric current pathway for electrically stimulated pulse signals so as to pass through cells constructing the retina and pairing with the plural electrodes, wherein the electric current pathway control material is formed in a film form with an insulating material and also has biocompatibility and is positioned so as to make contact with the retina, allows the electric current of electrically stimulated pulse signals to pass therethrough and has through-holes with diameters similar to or smaller than those of the plural electrodes.


Inventors:
TERASAWA YASUO
Application Number:
JP2008124026A
Publication Date:
November 19, 2009
Filing Date:
May 09, 2008
Export Citation:
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Assignee:
NIDEK KK
International Classes:
A61F9/007; A61F2/14; A61F9/08