Patent ID: 8626309

Claim:
An implantable medical device, comprising: a stimulator unit; an elongate electrode carrier in electrical communication with the stimulator unit; and an internal receiver unit, the internal receiver unit having a substantially convex contour defining a suction cup for attachment to a bone surface, the internal receiver unit comprises first and second convex cup portions, the first convex cup portion being adapted for mounting against the bone surface and including: i) a central convex suction pad having a substantially circular peripheral edge; and ii) a flat, annular flange extending from the substantially circular peripheral edge of the central convex suction pad; the second convex cup portion comprises: i) a convex frame portion having a substantially circular peripheral edge; ii) an outer peripheral portion annularly formed on the substantially circular peripheral edge of the convex frame portion; and iii) a central, ring-shaped fastening portion and a central bore extending through the central, ring-shaped fastening portion.