Patent ID: 7803192

Claim:
An artificial intervertebral disc comprising: a first body component having a first body upper surface, said first body component comprising: a flanged outer periphery; at least one first body projection member extending outwardly from said first body upper surface; and a first bowl region connected to said flanged outer periphery of said first body component, wherein said first bowl region comprises a first body cavity extending inwardly from said first body upper surface; a second body component having a second body upper surface, said second body component comprising: a flanged outer periphery; and a second bowl region connected to said flanged outer periphery of said second body component, wherein said second bowl region comprises a second body cavity extending inwardly from said second body upper surface; a third body component having a third body upper surface and a third body bottom surface, said third body component comprising: a third body cavity extending inwardly from said third body upper surface; at least one third body projection member outwardly extending from said third body bottom surface; and a sidewall defining an outer boundary of said third body cavity, wherein said sidewall comprises at least one hole extending through an entire thickness of said sidewall; wherein said first bowl region fits in said second body cavity, and wherein said second bowl region fits in said third body cavity.