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Title: Electrode array for neural stimulation

Patent ·
OSTI ID:1024121

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.

Research Organization:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
8,000,804
Application Number:
11/588,905
OSTI ID:
1024121
Country of Publication:
United States
Language:
English

References (7)

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A neuro-stimulus chip with telemetry unit for retinal prosthetic device journal October 2000
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Tape Casting of Fine Alumina/Zirconia Powders for Composite Fabrication journal August 1994
Preparation and characterization of platinum black electrodes journal July 2000