Patent ID: 8377138
Filing Date: 2013-02-19
Classification: A61B,A61F

Abstract:
1. A prosthetic intervertebral disc for implantation between adjacent first and second vertebrae in human spine comprising: a first endplate comprising an inner surface positioned adjacent a compressible core member, the first endplate comprising a plurality of slots, the first endplate being attachable to a first vertebra; a second endplate comprising an inner surface positioned adjacent the compressible core member, the second endplate comprising a plurality of slots, the second endplate being attachable to a second vertebra adjacent the first vertebra in a spine; the compressible core member positioned between said first and second endplates, the compressible core member comprising a polymeric nuclear domain having an outer surface comprising a plurality of grooves, each groove having a groove width and a groove depth, each groove width and groove depth selected to obtain desired performance characteristics of the core member, and the compressible core member comprising an annular domain surrounding the nuclear domain, wherein the annular domain contains at least one fiber that is engaged with said first and second endplates by extending through the plurality of slots in the first endplate and through the plurality of slots in the second endplate.