| abstract |
An adjustable spinal fusion intervertebral implant (10) is provided that can comprise upper and lower body portions (14), (16) that can each have proximal and distal wedge surfaces (18). (20) and (70), (72) disposed at proximal and distal ends (22), (24) and (74), (76) thereof. A pin (30) disposed intermediate the upper and lower body portions (14), (16) can be actuated to cause proximal and distal protrusions (68), (80) to converge towards each other and contact the respective ones of the proximal and distal wedge surfaces (18), (20) and (70), (72) Such contact can thereby transfer the longitudinal movement of the proximal and distal protrusions (68), (80) against the proximal and distal wedge surfaces (18). (20) and (70), (72) to cause the separation of the upper and lower body portions (14), (16), thereby expanding the intervertebral implant (10). |