17/129,237

Paragraph Number

99

Insertion of the screw member 400 and activation of the driver 162 (head 404 and drive recess 502) separates the upper plate 110 from the lower plate 120 by deforming the first lattice 130 and the second lattice 140 and separates the first lattice 130 and the second lattice 140 by deforming the upper lattice 310 and the lower lattice 320. In one particular embodiment, the driver 162 is configured to rotate the screw member 400 about the longitudinal axis 414 and such rotation moves the screw member 400 within the opening 150 and expands the expandable intervertebral implant along the cephalad-caudal axis 520 and the medial-lateral axis 530 to a target expanded configuration. This expansion can cause the upper plate 110 to engage a superior vertebral body (not shown) and the lower plate 120 to engage an inferior vertebral body (not shown) and the first lattice 130 and the second lattice 140 to separate to fill more space between the superior vertebral body and the inferior vertebral body. In such an embodiment, activation of the expansion mechanism 160 by the driver 162 expands the upper plate 110 and the lower plate 120 away from each other along the cephalad-caudal axis 520 and moves the first lattice 130 and the second lattice 140 away from each other along a medial-lateral axis 530 by deforming the first lattice 130, the second lattice 140, the upper lattice 310, and the lower lattice 320.

Added by DJM 2 2021