Electrode array for neural stimulation

Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical energy applicator

Reexamination Certificate

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C607S053000, C607S054000, C607S115000

Reexamination Certificate

active

08000804

ABSTRACT:
An electrode array for neural stimulation is disclosed which has particular applications for use in a retinal prosthesis. The electrode array can be formed as a hermetically-sealed two-part ceramic package which includes an electronic circuit such as a demultiplexer circuit encapsulated therein. A relatively large number (up to 1000 or more) of individually-addressable electrodes are provided on a curved surface of a ceramic base portion the electrode array, while a much smaller number of electrical connections are provided on a ceramic lid of the electrode array. The base and lid can be attached using a metal-to-metal seal formed by laser brazing. Electrical connections to the electrode array can be provided by a flexible ribbon cable which can also be used to secure the electrode array in place.

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