Visual prosthesis with operational data telemetry

a technology of optical data and prosthesis, applied in the field of electric stimulation of the retina, can solve the problems of difficulty, loss of vision, and complex interactions among retinal cells, and achieve the effect of reducing the risk of eye damage, and reducing the effect of eye damag

Inactive Publication Date: 2005-12-29
SECOND SIGHT MEDICAL PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0032] Another aspect of the invention uses a plurality of capacitive electrodes to stimulate the retina, in place of non-capacitive electrodes. Another aspect of the invention is the use of a neurotrophic factor, for example, Nerve Growth Factor, applied to the electrodes, or to the vicinity of the electrodes, to aid in attracting target nerves and other nerves to grow toward the electrodes.
[0033] Hermetic sealing is accom

Problems solved by technology

The interactions among the retinal cells can be quite complex.
This would result in some kind of replacement of the vision lost.
Difficulties can arise if the photoreceptors, the electronics, and the electrodes all tend to be mounted at one place.
One issue is the availability of sufficient area to accommodate all of the device

Method used

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  • Visual prosthesis with operational data telemetry
  • Visual prosthesis with operational data telemetry
  • Visual prosthesis with operational data telemetry

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Embodiment Construction

[0097] The following description is of the best mode presently contemplated for carrying out the invention. This description is not to be taken in a limiting sense, but is merely made for the purpose of describing the general principles of the invention. The scope of the invention should be determined with reference to the claims.

Objective

[0098] The objective of the embodiments of the current invention is a retinal color prosthesis to restore color vision, in whole or in part, by electrically stimulating undamaged retinal cells, which remain in patients with, lost or degraded visual function. Embodiments of this retinal color prosthesis invention are directed toward helping patients who have been blinded by degeneration of photoreceptors and other cells; but who have sufficient bipolar cells and the like to permit the perception of color vision by electric stimulation. By color vision, it is meant to include black, gray, and white among the term color.

General Description

[0099]...

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Abstract

The present invention is a visual prosthesis for the restoration of sight in patients with lost or degraded visual function. The visual prosthesis includes means for sending operational data from an implantable visual prosthesis to an external unit. Such operational data may include electrode current, voltage or capacitance, power received by the internal unit, and recording of neural activity.

Description

CROSS REFERENCE TO RELATED APPLICATIONS [0001] This application is a Divisional Application of U.S. patent application Ser. No. 10 / 202,243, filed Jul. 24, 2002, which is a Divisional Application of U.S. patent application Ser. No. 09 / 515,373, filed Feb. 29, 2000, which claims the benefit of U.S. Provisional Application No. 60 / 125,873, filed Mar. 24, 1999.TECHNICAL FIELD OF INVENTION [0002] The present invention relates to electrical stimulation of the retina to produce artificial images for the brain. It relates to electronic image stabilization techniques based on tracking the movements of the eye. It relates to telemetry in and out of the eye for uses such as remote diagnostics and recording from the retinal surface. [0003] The present invention also relates to electrical stimulation of the retina to produce phosphenes and to produce induced color vision. The present invention relates to hermetically sealed electronic and electrode units which are safe to implant in the eye. BACKG...

Claims

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Application Information

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IPC IPC(8): A61F9/00A61F2/14A61F9/007A61N1/05A61N1/08A61N1/18A61N1/36A61N1/375
CPCA61N1/0543A61N1/36046Y10T29/49165H01L2224/16225A61N1/37247A61N1/375
Inventor GREENBERG, ROBERT J.SCHULMAN, JOSEPH H.
Owner SECOND SIGHT MEDICAL PRODS
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