Retinal prosthesis with remote return electrode
First Claim
Patent Images
1. A retinal prosthesis comprising:
- a stimulating electrode array inside an eye surrounded by a sclera;
a return electrode outside of the sciera; and
an electrical circuit coupling said stimulating electrode array with said return electrode.
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Abstract
The present invention is an improved retinal electrode array with a remote return electrode outside of the eye. An array of stimulating electrodes is placed on the retinal surface (epiretinally) or under the retina (subretinally) and a large return electrode is placed outside of the sclera and distant from the array of stimulating electrodes. The remote return electrode promotes deeper stimulation of retinal tissue.
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Citations
22 Claims
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1. A retinal prosthesis comprising:
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a stimulating electrode array inside an eye surrounded by a sclera;
a return electrode outside of the sciera; and
an electrical circuit coupling said stimulating electrode array with said return electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A retinal prosthesis comprising:
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a stimulating electrode array inside an eye surrounded by a sclera, plan electrical circuit driving said stimulating electrode array in accordance with a visual image;
a light receiver for receiving said visual image and providing said visual image to said electrical circuit; and
a return electrode outside of the sclera and coupled to said electrical circuit. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method of passing current through a retina comprising:
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providing a stimulating electrode array near a retina;
energizing said stimulating electrode array; and
providing a return electrode outside of the sclera. - View Dependent Claims (18, 19, 20, 21, 22)
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Specification