Extraocular epiretinal implant

A - Human Necessities – 61 – F

Patent

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Details

A61F 9/08 (2006.01) A61F 2/14 (2006.01) A61N 1/36 (2006.01)

Patent

CA 2611851

The aim of the invention is to provide a visual prosthesis in the form of a retinal implant which requires as little space as possible in the interior of the eye. This aim is achieved according to the present invention by a visual prosthesis that comprises an intraocular implant and an extraocular implant supplying the intraocular implant with power and controlling it. The inventive visual prosthesis is advantageous in that virtually all electronic components that do not necessarily have to be accommodated together with the intraocular implant in the interior of the eye can be accommodated outside the eyeball, for example on the sclera. Accordingly, the space required in the interior of the eye for the simulation system can be reduced and surgery for implanting the stimulation system in the interior of the eye can be kept minimally invasive. The invention also relates to a bi-directional inductive interface between an extracorporeal part of the visual prosthesis and an intracorporeal part comprising the intraocular and the extraocular implant, which interface ensures power supply and a bi-directional data transmission.

L'invention concerne la production d'une prothèse visuelle sous la forme d'un implant rétinien qui se distingue par un encombrement compact dans l'oeil. A cet effet, la prothèse visuelle selon l'invention est dotée d'un implant intraoculaire et d'un implant extraoculaire qui alimente en énergie et commande l'implant intraoculaire. Cette prothèse visuelle offre ainsi l'avantage que, les composants électroniques ne devant pas tous obligatoirement être abrités avec l'implant intraoculaire, ils peuvent être placés à l'extérieur du globe oculaire, par exemple, sur le derme. Cela permet de réduire l'encombrement du système de stimulation à l'intérieur de l'oeil et de limiter l'intervention chirurgicale lors de l'implantation du système de stimulation à l'intérieur de l'oeil. L'invention concerne également une interface inductive bidirectionnelle située entre une partie extracorporelle de la prothèse visuelle et une partie intracorporelle comportant l'implant intraoculaire et l'implant extraoculaire. Cette interface permet d'assurer l'alimentation en courant et une transmission de données bidirectionnelle.

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