Electrode array for neural stimulation

Details Electrode array for neural stimulation Electrode array for neural stimulation

2006-07-18

2006-07-18

Layno, Carl H. (Department: 3766)

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

C623S006630

Reexamination Certificate

active

07079900

ABSTRACT:
The objective of the current invention is 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. The invention is a retinal color prosthesis. Functionally, There are three main parts to this invention. One is external to the eye. The second part is internal to the eye. The third part is means for communication between those two parts. The external part has subsystems. These include an external imaging means, an eye-tracker, a head-motion tracker, a data processor, a patient's controller, a physician's local controller, a physician's remote controller, and a telemetry means. The imaging means may include a CCD or CMOS video camera. It gathers an image of what the eyes would be seeing if they were functional.Color information is acquired by the imaging means. The color data is processed in the video data processing unit. The color information is encoded by time sequences of pulses separated by varying amounts of time, and also with the pulse duration being varied in time. The basis for the color encoding is the individual color code reference. Direct color stimulation is another operational basis for providing color perception. The electrodes stimulate the target cells so as to create a color image for the patient, corresponding to the original image as seen by the video camera, or other imaging means.The physician's test unit can be used to set up or evaluate and test the implant during or soon after implantation at the patient's bedside.

REFERENCES:
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patent: 6243608 (2001-06-01), Pauly et al.
patent: 6400989 (2002-06-01), Eckmiller
patent: 6458157 (2002-10-01), Suaning

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