Patent Number: 6,309,410

Title: Cochlear electrode with drug delivery channel and method of making same

Abstract: An electrode array suitable for insertion into the cochlea has a drug delivery channel therein. In a preferred embodiment, electrical stimuli may be applied near the modiolar wall of the cochlea via spaced-apart electrode contacts embedded along a front edge of a flexible carrier, which flexible carrier comprises the body of the electrode array. The front edge, and hence the electrode contacts, may be held against the modiolar wall by a flexible positioner placed on the back side of the flexible carrier. Drugs may be delivered deep into the cochlea through the drug delivery channel that passes longitudinally through the center of the flexible carrier. In an alternative embodiment, the drug delivery channel may be included within the positioner.

Inventors: Kuzma; Janusz A. (Englewood, CO), Lenarz; Thomas H. R. (Hannover, DE), Battmer; Rolf-Dieter (Hannover, DE), Mann; Alfred E. (Hollywood, CA)

Assignee: Advanced Bionics Corporation

International Classification: A61N 1/05 (20060101); A61N 001/05 ()

Expiration Date: 10/30/2018