We propose the development of a novel flexible integrated microelectrode array as active stimulating interface to the neural system in the retina of the human eye. Our approach, in which microelectrode arrays, interconnecting leads and circuitry traces are embedded and integrated on a single flexible polyimide foil and encapsulated with our proprietary materials will overcome the classical separation of substrate and insulation layers, a weak point in many biomedical implant devices. To achieve this goal we will combine our proprietary A-Coat TM encapsulation technology for flex substrates with our proprietary metal-to-flex substrate adhesion technology. This implant device promises to deliver improved long-term performance under stimulating pulsed conditions and excellent long-term biocompatibility.

Agency
National Institute of Health (NIH)
Institute
National Institute of Neurological Disorders and Stroke (NINDS)
Type
Small Business Innovation Research Grants (SBIR) - Phase II (R44)
Project #
5R44NS041113-03
Application #
6896142
Study Section
Special Emphasis Panel (ZRG1-SSS-8 (10))
Program Officer
Pancrazio, Joseph J
Project Start
2000-11-01
Project End
2006-09-29
Budget Start
2005-05-15
Budget End
2006-09-29
Support Year
3
Fiscal Year
2005
Total Cost
$345,638
Indirect Cost
Name
Premitec, Inc.
Department
Type
DUNS #
131630852
City
Raleigh
State
NC
Country
United States
Zip Code
27606
Weiland, James D; Humayun, Mark S; Eckhardt, Helmut et al. (2009) A comparison of retinal prosthesis electrode array substrate materials. Conf Proc IEEE Eng Med Biol Soc 2009:4140-3
Ameri, Hossein; Ratanapakorn, Tanapat; Ufer, Stefan et al. (2009) Toward a wide-field retinal prosthesis. J Neural Eng 6:035002