Patent ID: 8864831

Claim:
An intervertebral disc prosthesis implant, comprising: a rigid surgical implant substrate comprising an intervertebral disc prosthesis endplate, a porous attachment structure provided on said substrate and covering a portion of said substrate, said porous attachment structure including a perforated plate having a first major surface facing said portion of said substrate, a second major surface facing away from said portion of said substrate, and a periphery fastened to said substrate, and an elastomeric disc prosthesis core body having a portion adjacent to said portion of said substrate and impregnating said porous attachment structure, said portion of said elastomeric intervertebral disc prosthesis core body filling a major portion of a volume bounded by said second major surface of said perforated plate and said portion of said substrate, whereby said elastomeric intervertebral disc prosthesis core body is secured to said substrate.