Advanced Spiral Cuff Electrode Fabrication

Award Information
Agency: Department of Health and Human Services
Branch: N/A
Contract: N/A
Agency Tracking Number: 22357
Amount: $747,814.00
Phase: Phase II
Program: SBIR
Awards Year: 1995
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Spire Corp.
One Patriots Park, Bedford, MA, 01730
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Piran Sioshansi
 (617) 275-6000
Business Contact
Phone: () -
Research Institution
Because they are easily fabricated, easily implanted, and highly reliable, simple cuff electrodes have been the workhorse electrodes for most of the clinically applied neural prostheses in spite of their "off- on" characteristics. While electrodes that permit graduated neural activation would yield better control, they cannot now be fabricated in the form of a safe and practical cuff. This limitation has recently been overcome by investigators at Case Western Reserve University (CWRU), who have demonstrated selective activation of nerves in animals with a self-wrapping spiral cuff electrode of patented design. The CWRU electrodes are now fabricated one-at-a-time in a laborious, time consuming series of manual operations whose output is small and product in unreliable; to fully realize the benefits of CWRU's innovation, an improved, mass-producible versions must be developed. Such an electrode is the subject of Spire's proposal. Ion beam assisted deposition will be used to place a thin, patterned, highly adherent, conducting film on silicone rubber. This approach will allow reliable, repeatable production of the spiral cuff electrode design and make possible designs with smaller features and more stimulating surfaces. Prototype cuffs will be manufactured in Phase I. In Phase II, we will further refine the fabrication process and test the electrodes in extensive, long-term animal studies.

* information listed above is at the time of submission.

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government