Patent ID: 9474627
Filing Date: 2016-10-25
CPC Classification: A61F

Claim Text:
1. A spinal fusion implant positionable within an interbody space between a first vertebra and a second vertebra, said implant comprising: an upper surface including anti-migration elements to contact said first vertebra when said implant is positioned within the interbody space, a lower surface including anti-migration elements to contact said second vertebra when said implant is positioned within the interbody space, a distal wall, a proximal wall, a first sidewall, and a second sidewall opposite from the first sidewall, wherein the first sidewall intersects the proximal wall and the distal wall, wherein the second sidewall intersects the proximal wall and the distal wall, wherein the implant has a straight longitudinal axis extending between the proximal wall and the distal wall and being axially aligned with a tool engagement aperture in the proximal wall to define a longitudinally straight insertion direction of the implant, wherein said distal wall, proximal wall, first sidewall, and second sidewall comprise a radiolucent material; wherein said implant has a longitudinal length greater than 40 mm extending from a proximal end of said proximal wall to a distal end of said distal wall and extending parallel to said straight longitudinal axis, wherein said implant has a maximum lateral width extending from the first sidewall to the second sidewall along a medial plane that is perpendicular to said straight longitudinal axis, said implant has a maximum height extending from said upper surface to said lower surface and extending perpendicular to said longitudinal length and said maximum lateral width, wherein said wherein the longitudinal length of the implant is at least two and half times greater than the maximum lateral width, and said maximum lateral width is greater than said maximum height; at least a first fusion aperture defined by the implant and extending through the implant from said upper surface to said lower surface and configured to permit bone growth between the first vertebra and the second vertebra when said implant is positioned within the interbody space, said first fusion aperture having: a longitudinal aperture length extending parallel to the longitudinal length of said implant and parallel to the straight longitudinal axis, and a lateral aperture width extending between said first sidewall to said second sidewall, wherein the longitudinal aperture length is greater than the lateral aperture width, wherein opposing portions of the first and second sidewalls positioned laterally of the first fusion aperture include outwardly convex regions that are convexly curved outwardly away from said straight longitudinal axis in a horizontal plane extending parallel to said straight longitudinal axis and through the proximal wall, the distal wall, and the first and second sidewalls, wherein the outwardly convex region of the first sidewall is symmetric with the outwardly convex region of the second sidewall relative to said straight longitudinal axis; and first, second, third, and fourth radiopaque markers positioned in said radiolucent material, each of said first, second, third, and fourth radiopaque markers being elongated generally parallel to said height of the implant, and wherein the first radiopaque marker is positioned in said distal wall, wherein the second radiopaque marker is positioned in said proximal wall, wherein the third radiopaque marker is positioned in the first sidewall and extends in the medial plane, wherein the fourth radiopaque marker is positioned in the second sidewall and extends in the medial plane.