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Title: Flexible retinal electrode array

Abstract

An electrode array which has applications for neural stimulation and sensing. The electrode array can include a large number of electrodes each of which is flexibly attached to a common substrate using a plurality of springs to allow the electrodes to move independently. The electrode array can be formed from a combination of bulk and surface micromachining, with electrode tips that can include an electroplated metal (e.g. platinum, iridium, gold or titanium) or a metal oxide (e.g. iridium oxide) for biocompatibility. The electrode array can be used to form a part of a neural prosthesis, and is particularly well adapted for use in an implantable retinal prosthesis where the electrodes can be tailored to provide a uniform gentle contact pressure with optional sensing of this contact pressure at one or more of the electrodes.

Inventors:
 [1];  [1];  [1]
  1. Albuquerque, NM
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
908141
Patent Number(s):
7127301
Application Number:
10/426,152
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Classifications (CPCs):
A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61N - ELECTROTHERAPY
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Okandan, Murat, Wessendorf, Kurt O, and Christenson, Todd R. Flexible retinal electrode array. United States: N. p., 2006. Web.
Okandan, Murat, Wessendorf, Kurt O, & Christenson, Todd R. Flexible retinal electrode array. United States.
Okandan, Murat, Wessendorf, Kurt O, and Christenson, Todd R. Tue . "Flexible retinal electrode array". United States. https://www.osti.gov/servlets/purl/908141.
@article{osti_908141,
title = {Flexible retinal electrode array},
author = {Okandan, Murat and Wessendorf, Kurt O and Christenson, Todd R},
abstractNote = {An electrode array which has applications for neural stimulation and sensing. The electrode array can include a large number of electrodes each of which is flexibly attached to a common substrate using a plurality of springs to allow the electrodes to move independently. The electrode array can be formed from a combination of bulk and surface micromachining, with electrode tips that can include an electroplated metal (e.g. platinum, iridium, gold or titanium) or a metal oxide (e.g. iridium oxide) for biocompatibility. The electrode array can be used to form a part of a neural prosthesis, and is particularly well adapted for use in an implantable retinal prosthesis where the electrodes can be tailored to provide a uniform gentle contact pressure with optional sensing of this contact pressure at one or more of the electrodes.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {10}
}

Patent:

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Works referenced in this record:

Pattern electrical stimulation of the human retina
journal, July 1999


Single chip CMOS imagers and flexible microelectronic stimulators for a retina implant system
journal, May 2000


Micromachined conformal electrode array for retinal prosthesis application
conference, January 2003


Ocular implants for the blind
journal, May 1996