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Title: Micromachined electrode array

Abstract

An electrode array is disclosed which has applications for neural stimulation and sensing. The electrode array, in certain embodiments, can include a plurality of electrodes each of which is flexibly attached to a common substrate using a plurality of springs to allow the electrodes to move independently. In other embodiments of the electrode array, the electrodes can be fixed to the substrate. The electrode array can be formed from a combination of bulk and surface micromachining, and can include electrode tips having 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.

Inventors:
 [1];  [2]
  1. Edgewood, NM
  2. Albuquerque, NM
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
920986
Patent Number(s):
7308317
Application Number:
11/060,473
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

Citation Formats

Okandan, Murat, and Wessendorf, Kurt O. Micromachined electrode array. United States: N. p., 2007. Web.
Okandan, Murat, & Wessendorf, Kurt O. Micromachined electrode array. United States.
Okandan, Murat, and Wessendorf, Kurt O. Tue . "Micromachined electrode array". United States. https://www.osti.gov/servlets/purl/920986.
@article{osti_920986,
title = {Micromachined electrode array},
author = {Okandan, Murat and Wessendorf, Kurt O},
abstractNote = {An electrode array is disclosed which has applications for neural stimulation and sensing. The electrode array, in certain embodiments, can include a plurality of electrodes each of which is flexibly attached to a common substrate using a plurality of springs to allow the electrodes to move independently. In other embodiments of the electrode array, the electrodes can be fixed to the substrate. The electrode array can be formed from a combination of bulk and surface micromachining, and can include electrode tips having 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {12}
}

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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