Patent ID: 7850734

Claim:
A sliding intervertebral implant comprising: an inner member adapted to connect to an intervertebral space between two adjacent vertebrae, wherein said inner member comprises: a front wall comprising a leg positioned on a lateral edge of said front wall; a first curved side wall connected to said front wall; a second curved side wall positioned opposite to said first curved side wall and behind said leg; an upper curved wall; and a lower curved wall positioned opposite to said upper curved wall; an outer member slidably attached to said inner member, wherein said outer member comprises: a top curved wall matching an arcuate shape of said upper curved wall of said inner member; a bottom curved wall matching an arcuate shape of said lower curved wall of said inner member; a truncated inclined side wall connected to each of said top curved wall and said bottom curved wall; and a guide wall positioned opposite to said truncated inclined side wall and comprising a plurality of oppositely positioned grooves, said guide wall being connected to each of said top curved wall and said bottom curved wall, wherein said second curved side wall of said inner member is adapted to slide in said plurality of oppositely positioned grooves of said guide wall of said outer member within a limitation of a pre-set curvature, wherein said pre-set curvature is based on a pattern of an outer shape of said intervertebral space, wherein said inner member and said outer member are adapted to articulate from an extended position to a non-extended position as said inner member slides into said outer member, and wherein said first curved side wall of said inner member is adapted to connect to said truncated inclined side wall of said outer member in said non-extended position.