US Patent 5,676,655
United States Patent and Trademark Office
University of Iowa Research Foundation (Iowa City, IA, US)
A method for implanting a neural prosthetic drug delivery apparatus into a target zone of a patient's brain for reducing or eliminating the effects of tinnitus. The apparatus includes a catheter which is inserted into the patient's auditory cortex or thalamus. The catheter microinfuses drugs which suppress or eliminate abnormal neural activity into geometrically separate locations of the patient's cortex or thalamus, thereby reducing or eliminating the effects of tinnitus.
Howard III, Matthew A.; Mcculloch, Timothy M.; and Bauer, Carol A. Methods for treating tinnitus by drug microinfusion from a neural prosthesis inserted in the brain. US Patent 5,676,655 filed February 06, 1996 and issued October 14, 1997. https://ir.uiowa.edu/patents/170