| 主权项 |
1. A spinal fusion implant for implantation via a lateral surgical approach in an interbody space between an upper vertebral body and a lower vertebral body, comprising:
proximal and distal walls, and an anterior wall configured to face said anterior aspect of said interbody space when said implant is positioned within the interbody space, and a posterior wall configured to face said posterior aspect of said interbody space when said implant is positioned within the interbody space, said distal wall, proximal wall, anterior wall, and posterior wall comprising a radiolucent material, wherein the anterior wall is curved with respect to and positioned generally opposite to the posterior wall, and wherein said distal wall, proximal wall, anterior wall, and posterior wall provide a generally D-shaped circumference of said implant, wherein the spinal fusion implant has a longitudinal length extending between the proximal wall and the distal wall, the longitudinal length being 45 mm or larger for laterally inserting the implant between the upper and lower vertebral bodies in the lumbar spine, a maximum width smaller than the longitudinal length and extending perpendicularly to the longitudinal length and between the posterior wall and the anterior wall, and a maximum height smaller than the maximum width and extending perpendicularly to the maximum width and the longitudinal length; wherein the posterior, anterior, proximal, and distal walls define a top face including anti-migration features along at least the posterior wall and the anterior wall, wherein the anti-migration features are operable to engage the upper and lower vertebral bodies in a lumbar spine, wherein the top face includes a smooth top section extending along at least a portion of the distal wall to a distal edge of the distal wall; wherein the posterior, anterior, proximal, and distal walls define a bottom face including anti-migration features along at least the posterior wall and the anterior wall, wherein the anti-migration features are operable to engage the upper and lower vertebral bodies in the lumbar spine, wherein the bottom face includes a smooth bottom section extending along at least a portion of the distal wall to the distal edge of the distal wall, and wherein the smooth bottom section and the smooth top section taper toward the distal edge of the distal wall; means for receiving an osteoinductive material to promote bone growth through the spinal fusion implant, wherein said means for receiving the osteoinductive material extends from an inner surface of the proximal wall to an inner surface of the distal wall and extends from an inner surface of the posterior wall to an inner surface of the anterior wall; and first, second, and third means for radiopaque marking the spinal fusion implant, said first, second, and third means for radiopaque marking being disposed at least partially within said radiolucent material. |
