Single channel auditory stimulation system

Details Single channel auditory stimulation system Single channel auditory stimulation system

A - Human Necessities

61

F

326/1

A61F 11/04 (2006.01) A61N 1/36 (2006.01) A61N 1/372 (2006.01) H04R 25/00 (2006.01)

Patent

CA 1194552

ABSTRACT OF THE DISCLOSURE Chronic auditory stimulation is achieved by establishing an electric field at the base of the cochlea whereby full speech patterns are imparted to a patient. Penetration of the cochlea is not required thereby reducing the risks in installing the implanted electrodes. In a preferred embodiment the electrodes are disc shaped with the ground electrode being larger than the active electrode. The active electrode is preferably placed in the round window at the base of the cochlea or on the promontory. The ground electrode is placed 2-10 mm from the active electrode to thereby confine the electric field. The interconnections to the electrodes are tissue compatible insulation covered wires thereby minimizing stimulation of cutaneous nerve fibers.

411664

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