Patent ID: 8709086
Filing Date: 2014-04-29
Classification: A61F

Abstract:
1. An intervertebral implantation system comprising: a fusion device capable of expansion and contraction, wherein the fusion device comprises: a first endplate; a second endplate; a body portion that extends along at least a length of the first endplate and the second endplate, wherein the first endplate and the second endplate move relative to the body portion; and a translation member in between the first endplate and second endplate, wherein the translation member includes surfaces for engaging the first endplate and second endplate to cause a change in a distance of separation between the first endplate and second endplate; and an instrument for engaging the fusion device, wherein at least two first surfaces of the translation member engage the first endplate and at least two second surfaces of the translation member engage the second endplate, and the at least two first surfaces are spaced apart and sloped in a same direction.