Intervertebral implant and method of use
AssigneeElevation Spine, Inc.
InventorsCharles GILBRIDE, Trevor LEWIS, Andrew FAUTH
Life of this patent
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Abstract
An implant and method for fusing adjacent spinal vertebrae is disclosed. In an embodiment for a spinal implant of the present invention, the implant includes a spacer body assembly and two retention members. The two retention members each include split fork tangs wherein the tangs of each retention member are simultaneously extendable from the spacer body assembly into the adjacent vertebra. A method of fusing adjacent vertebrae includes the step of inserting an implant between adjacent vertebrae with retention members. The method also includes the step of configuring the retention members wherein a portion of each tang of a retention member simultaneously extends from the implant into one of the adjacent vertebra.
Claims21
1-47. (canceled)
An intervertebral implant for positioning between a first vertebra and a second vertebra successive to the first vertebra, the intervertebral implant comprising:
- a singular spacer body comprising;
- a superior surface configured to contact an inferior endplate of the first vertebra,
- an inferior surface configured to contact a superior endplate of the second vertebra,
- an anterior wall,
- a posterior wall,
- a first lateral wall extending between the posterior wall and the anterior wall,
- a second lateral wall extending between the posterior wall and the anterior wall, and
- an interior graft window defined by the anterior wall, the posterior wall, the first lateral wall and the second lateral wall, the interior graft window comprising;
- a graft aperture open to either the superior surface, the inferior surface or both the superior surface and the inferior surface;
- a first split-guide in the anterior wall, the first split-guide comprising:
- a first ramped channel extending from the anterior surface to the superior surface within the first lateral wall;
- and
- a second ramped channel extending from the anterior surface to the inferior surface within the same first lateral wall.
An intervertebral implant comprising:
- a bone fixation member comprising:
- a cap with an anterior and posterior surface;
- a capture feature on the cap;
- a first retention tang and a second retention tang each retention tang having a first end, a lengthwise body and a second end opposite the first end and forming a split-fork configuration relative to each other;
- wherein the first retention tang and second retention tang protrude from the posterior face of the cap, each retention tang in a plane parallel to the other retention tang.
A spinal cage fixation plate comprising:
- an anterior surface;
- a stepped posterior surface spaced from the anterior surface along a medial-lateral direction;
- a superior surface;
- and an inferior surface spaced from the superior surface along a medial-lateral direction;
- a first fixation aperture extending from the anterior surface through the posterior surface, configured to receive the shank of a fixation mechanism;
- and
- a concentric secondary aperture on the anterior surface, coaxially aligned with the first fixation aperture, configured to receive the head of the fixation mechanism,
- wherein the first fixation aperture and secondary aperture are centrally located in the medial-lateral and superior-inferior dimensions of the fixation plate,
- wherein an overall medial-lateral dimension of the plate is greater than a superior-inferior dimension of the plate, and
- wherein the stepped posterior surface comprises a recessed medial stepped portion, a recessed lateral stepped portion and a posteriorly protruding central portion.
Dependencies are inferred from the claim text.