Patent ID: 8470045
Filing Date: 2013-06-25
Classification: A61F

Abstract:
1. An endplate for an intervertebral disc prosthesis, comprising: a plate member sized and configured to fit within an intervertebral space of a human spinal motion segment, said plate member including an upper peripheral rim portion having an anterior region and a posterior region, and an elevated region within said upper peripheral rim portion, said elevated region having an antero-posterior dimension and a transverse dimension different from said antero-posterior dimension, said elevated region further being bounded by a wall projecting upward from said peripheral rim portion, said wall having laterally opposite side portions defined by arcs terminating in sagittal planes of said plate member and symmetrical with respect to a coronal plane of said plate member, said elevated region having an anterior portion and a posterior portion, said posterior portion having a generally planar upper surface and said anterior portion being recessed with respect to said upper surface of said posterior portion, a coating which is effective to promote bone ingrowth being provided on said anterior portion, but not on said posterior portion, of the elevated region, wherein said coating has an upper surface substantially coplanar with said upper surface of said posterior portion of the elevated region.