Nano-retina, Inc.

Dorit Raz Prag

Yossi Gross

Yaakov Milstain

David Rigler

Rani Mendelewicz

Boris Degtiar

Matan Zehavi

Dov Weinberger

Ofir Rimer-Cohen

Ben Saar

Daniel Shaki

Tsachi Czaczkes

Apparatus is provided that includes a retinal stimulator, which includes an electrode array including electrodes, which are configured to be coupled to a retina of a subject's eye; and driving circuitry, configured to drive the electrodes to apply currents to the retina. The retinal stimulator further includes an elastic anchor that is coupled to the retinal stimulator and is configured to anchor the electrodes to the retina without the elastic anchor penetrating the retina. Other embodiments are also described.

Retinal implant fixation

Apparatus is provided that includes an array of stimulating electrodes configured for implantation in a retina of a subject's eye; circuitry configured to drive the electrodes to apply currents to the retina; and a graspable portion coupled to the array and configured to facilitate positioning of the array in an epi-retinal position. A cord is removably coupled to the apparatus and (a) is not electrically coupled to the circuitry, and (b) is looped through an opening of the graspable portion. Other embodiments are also described.

Retinal implant with insertion cord

Apparatus is provided including an implantable retinal stimulator, for implantation on a retina of an eye, and including (i) an electrode array including electrodes; (ii) a plurality of photosensors; and (iii) driving circuitry, configured to drive the electrodes to apply currents to the retina. The apparatus further includes an interface member disposed at an outer surface of the implantable retinal stimulator, e.g., a peripheral member surrounding at least a portion of the implantable retinal stimulator. The apparatus additionally includes a frame, (i) shaped and sized to couple to the peripheral member and to surround the implantable retinal stimulator at least in part, and (ii) shaped to define at least a first anchoring element receiving portion. An anchoring element is shaped and sized to be positioned in the anchoring element receiving portion and to penetrate scleral tissue of the subject. Other applications are also described.

A method is provided for implanting, in an eye, apparatus having an electrode array including stimulating electrodes shaped to define distal tips protruding from the array, a plurality of photosensors, and driving circuitry, configured to drive the electrodes to apply currents to the retina. The method includes removing a lens of the eye and a vitreous body of the eye, creating a corneoscleral incision and inserting the apparatus through the corneoscleral incision into a vitreous cavity of the eye. During the inserting, an orientation of the distal tips is maintained pointing towards a cornea of the eye. Subsequently to the inserting, the apparatus is rotated such that the distal tips point towards a macula of the eye. Subsequently to the rotating, the apparatus is positioned epi-retinally, such that the distal tips of the electrodes penetrate the retina. Other applications are also described.

Surgical techniques for implantation of a retinal implant

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Pardes Hanna-Karkur, Israel

Dorit Raz Prag