Patent ID: 8480745

Claim:
A spinal implant, comprising: an elongate body extending along a longitudinal axis between a distal insertion end and an opposite proximal end, said body including: upper and lower bearing surfaces convexly curved along said longitudinal axis in a direction between said distal insertion end and said proximal end; at least one cavity extending through said body transversely to said longitudinal axis and opening at said upper and lower bearing surfaces; and said body being sized for positioning in a spinal disc space between adjacent vertebrae, wherein said distal insertion end is convexly curved between convexly curved portions of said upper and lower bearing surfaces; wherein said upper and lower bearing surfaces each include a first ridge extending transversely to said longitudinal axis between opposite sidewalls of said body proximally of said cavity and a second ridge extending transversely to said longitudinal axis between opposite sidewalls of said body distally of said cavity.