Patent ID: 9656059
Date: 2017-05-23
CPC Classifications: A61N

Claim:
1. A cochlear electrode array adapted for cochlear stimulation comprising: a polymer base layer; high density patterned first metal traces deposited on said polymer base layer; a polymer interlayer deposited on said polymer base layer and said first metal traces; high density patterned second metal traces deposited on said polymer interlayer; a polymer top layer deposited on said polymer interlayer and said first and second metal traces; said polymer interlayer and said polymer top layer defining voids for electrodes; electrodes deposited on said first and second metal traces in said voids; and a skirt comprising a soft polymer, which is more compliant than said polymer base layer, surrounding the array and extending beyond its edges; wherein said array has a soft tip containing said soft polymer; and wherein said array is curved into a helical shape to approximate the shape of the cochlea.