Patent ID: 8814938
Filing Date: 2014-08-26
Classification: A61B,A61F

Abstract:
1. An endplate for an intervertebral prosthesis, comprising: an inner domed region configured and disposed to contact a prepared recess in an endplate of a vertebra; and a peripheral rim configured and disposed to contact an intact peripheral rim of said vertebra, said peripheral rim substantially surrounding said inner domed region and having a circumference defining an area of said endplate, wherein said inner domed region has a base periphery joined to said peripheral rim and a dome surface within said base periphery elevated above said peripheral rim, said base periphery of said domed region has a non-circular plan and defines an area of said domed region, said area of said domed region constitutes at least 50% of said area of said endplate, said base periphery has anterior and posterior portions in plan view including transversely oriented edges, and said endplate further comprises an upstanding fin having portions provided on said inner domed region and said peripheral rim.