Patent ID: 8623088
Filing Date: 2014-01-07
Classification: A61F

Abstract:
1. A spinal fusion implant for insertion between first and second vertebral bodies, each vertebral body having a cancellous bone interior bounded by a cortical bone exterior wall, each vertebral body having a generously curved anterior portion and slightly curved posterior portion, said posterior portion adjacent to a spinal canal, said spinal fusion implant comprising: an article having opposing first and second engagement sides, a central aperture extending through said first and second engagement sides, opposing first and second lateral sides, a lateral channel disposed along each of said first and second lateral sides, a proximal end, an distal end, a width between said opposing first and second lateral sides, and a length between said proximal end and distal end, a first height between said opposing first and second engagement sides at said distal end and at said first lateral side, a second height between opposing first and second engagement sides at said distal end and at said second lateral side, a third height at said proximal end and said first lateral side and a fourth height at said proximal end and at said second lateral side, wherein at least one of said first and second engagement sides is tapered between said distal and proximal ends along a direction oblique to said implant length and oblique to said implant width such that said first height is greater than said second height, said second height is greater than said third height and said third height is greater than said fourth height, wherein said first and second lateral sides are generally planar and said first lateral side has a greater length than the second lateral side, and further wherein said central aperture spans at least half of distance of said length.