Patent ID: 8105383

Claim:
An interbody spinal implant made of a bone composite material 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 and into at least a portion of the endplates of the vertebral bodies, the implantation space having a front wall, said implant comprising: a body manufactured from a bone composite material, said body having a perimeter with a leading end, a trailing end opposite said leading end, and opposite exterior sides, said body having a mid-longitudinal axis passing through said leading and trailing ends, said leading end having a straight portion in a direction from one of said opposite exterior sides to another of said opposite exterior sides along a portion of the perimeter of said body adapted to abut the front wall of the implantation space when said implant is installed into the implantation space; opposite upper and lower surfaces adapted to be placed in contact with and to support the adjacent vertebral bodies, said upper and lower surfaces being non-arcuate; said opposite exterior sides connecting said upper and lower surfaces and said leading and trailing ends, said opposite exterior sides of said implant having straight portions that are parallel to each other; and an opening passing through said upper and lower surfaces for permitting for the growth of bone from adjacent vertebral body to adjacent vertebral body through said implant, said opening being between said straight portions of said opposite exterior sides and having a maximum width transverse to the mid-longitudinal axis of said body, said trailing end having a non-linear portion between two lines parallel to the mid-longitudinal axis, the parallel lines being spaced apart from one another on opposite sides of the mid-longitudinal axis and intersecting the maximum width of said opening; and wherein said implant is in combination with at least one bone screw adapted to engage at least one vertebral body when inserted through said implant, said implant comprising a lock for locking said at least one bone screw to said implant, said lock being made of one of cortical bone and a bioresorbable material.