Patent ID: 7935149

Claim:
An interbody spinal fusion implant for insertion at least in part into an implantation space formed across the height of a disc space between adjacent vertebral bodies of a human spine, the vertebral bodies having a depth and a width, said implant comprising: a leading end for insertion first into the disc space and a trailing end opposite said leading end, said implant having a length from said leading end to said trailing end and a mid-longitudinal axis along the length; opposed upper and lower portions between said leading and trailing ends adapted to be placed at least in part within and across the height of the disc space to contact and support the adjacent vertebral bodies, said upper and lower portions defining a height of said implant, said upper and lower portions of said implant including at least one opening in communication with one another for permitting for the growth of bone from vertebral body to vertebral body through said implant; opposite sides between said upper portion and said lower portion, and between said leading and trailing ends, said opposite sides defining a width of said implant, each of said opposite sides being at least in part straight in a direction from said leading end to said trailing end along at least a portion of the length of said implant, said leading end being curved across the mid-longitudinal axis to form a portion of a circle from one of said opposite sides to another one of said opposite sides, said trailing end being curved from one of said opposite sides to another one of said opposite sides; a hollow interior between said upper and lower portions, at least one of said opposite sides including at least one opening in communication with said hollow interior; said trailing end having at least one bone screw receiving hole passing through said trailing end and extending through one of said upper and lower portions of said implant; and at least one bone screw configured to be inserted into said bone screw receiving hole and extending through one of said upper and lower portions of said implant to engage one of the vertebral bodies; said implant being manufactured from a material other than bone.