Multi-channel extracochlear implant

US4892108A · kind A · utility

Assignee

• THE REGENTS OF THE UNIVERSITY OF MICHIGAN · US

Inventors

• Josef Miller · Ann Arbor, US
• Bryan E. Pfingst · Ann Arbor, US
• Anders Tjellstrom · Gothenburg, SE
• Tomas Albrektsson · Umeå, SE

Key dates

• Filing date: Jul 23, 1987
• Grant date: Jan 9, 1990
• Expiry date: Jul 23, 2007

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F11/20
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A titanium anchoring device for anchoring at least one electrode in or adjacent to a human cochlea so that the electrode can afford electrical stimulation of nerve fibers to produce the sensation of sound includes a titanium shaft disposed in an aperture in the lateral wall of the inner ear. At least one titanium barb is formed about the shaft for preventing removal of the shaft from the aperture. At least one aperture is formed to communicate axially through the shaft to allow the electrode to be disposed within the shaft.