Patent ID: 7563285
Filing Date: 2009-07-21
Classification: A61F

Abstract:
1. An artificial intervertebral disc comprising: a first plate having a first inner surface and a first outer surface, said first inner surface including a deformable protuberance having a bore extending at least partially therethrough, said first inner surface of said first plate includes a radial groove about said protuberance; a second plate having a second inner surface and a second outer surface, said first and second plates being disposed such that said first and second inner surfaces face one another, said second plate having an engaging means fixably connected with said second plate for engaging said protuberance of said first plate, said second inner surface of said second plate includes a rim, said rim extending about said engaging means, wherein said first and second plates are capable of angular movement relative to one another when said protuberance is engaged with said engaging means; and a locking means insertable into said first bore of said protuberance for preventing inward deformation of said protuberance, wherein said second plate includes a second bore, said second bore extending from said engaging means to said second outer surface, wherein said locking means is insertable into said first bore of said protuberance through said second bore.