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Retinal prosthesis

  • US 9,008,785 B2
  • Filed: 12/30/2011
  • Issued: 04/14/2015
  • Est. Priority Date: 12/30/2010
  • Status: Active Grant
First Claim
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1. A retinal prosthesis comprising:

  • an electronic stimulation unit, which is configured to be housed inside an eye, the electronic stimulation unit comprising;

    a plurality of electrodes, configured to contact a portion of a retina of the eye;

    an electronic control circuit electrically connected to said electrodes and configured to supply to the electrodes electrical stimulation signals designed to stimulate said portion of retina; and

    a local antenna packaged in the electronic stimulation unit and connected to the electronic control circuit; and

    an electromagnetic expansion, which is configured to be housed inside the eye, the electromagnetic expansion comprising;

    a first expansion antenna; and

    a second expansion antenna electrically coupled with the first expansion antenna, wherein the first expansion antenna is coupleable magnetically or electromagnetically to an external antenna, and the second expansion antenna is coupleable magnetically or electromagnetically to said local antenna, andwherein the electromagnetic expansion is further configured to receive an electromagnetic supply signal transmitted by said external antenna and generate a corresponding replica signal for reception in the local antenna.

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