Cochlear prostheses and other implantable biomedical devices are requiring increasing rates of data flow inward for control purposes and outward for monitoring. Percutaneous connectors are inadequate for many future applications because of their limited contact densities, cosmetic consequences, and paths for infection. The alternative of combined radio-frequency coil links for data and power have inherent bandwidth limitations. Having established the feasibility of high-speech optical data links through the skin, we proposed to design fabricate and test the first two-way, high-speed transcutaneous optical links. The internal subsystems will be powered by ratio-frequency energy transferred through coils. The data links will use recently developed, very low power, light-emitting devices having different wavelengths for the inward and outward links. Errors due to link crosstalk, ambient light, tissue properties, movement, and other factors will be measured and the external and internal subsystems optimized to minimize them. Data rates in excess of 10 Mbits/s for the inward link and 1 Mbit/s for the outward link appear feasible. This technology has potential use in a number of biomedical areas, especially for neural and neuromuscular prostheses.

Proposed Commercial Applications

NOT AVAILABLE

Agency
National Institute of Health (NIH)
Institute
National Institute on Deafness and Other Communication Disorders (NIDCD)
Type
Small Business Innovation Research Grants (SBIR) - Phase II (R44)
Project #
5R44DC003945-03
Application #
6379467
Study Section
Special Emphasis Panel (ZRG1-IFCN-6 (02))
Program Officer
Heetderks, William J
Project Start
1998-09-01
Project End
2002-04-30
Budget Start
2001-05-01
Budget End
2002-04-30
Support Year
3
Fiscal Year
2001
Total Cost
$349,495
Indirect Cost
Name
Advanced Cochlear Systems, Inc.
Department
Type
DUNS #
009177671
City
Snoqualmie
State
WA
Country
United States
Zip Code
98065
Clopton, Ben M; Spelman, Francis A (2003) Technology and the future of cochlear implants. Ann Otol Rhinol Laryngol Suppl 191:26-32