| 主权项 |
1. An expandable device for implantation between two opposing tissue surfaces of a body, comprising:
an inferior endplate having an outer surface configured to contact one body tissue surface; a superior endplate having an outer surface configured to contact an opposing body tissue surface, said inferior endplate and said superior endplate being movable relative to each other in a direction of expansion; an elevator captively retained prior to expansion of said device for independent movement along the direction of expansion between said inferior endplate and said superior endplate, said elevator being moveable in a first direction during expansion toward said superior endplate to move said superior endplate away from said inferior endplate and thereby expand said device, and in a second opposite direction after expansion toward said inferior endplate to create a space between said superior endplate and said elevator for receipt of an insert; and at least one insert in said space between said superior endplate and said elevator created by the movement of said elevator, said insert having a leading front distal end and a trailing rear proximal end, a latching receptacle at said distal end for releasably flexibly receiving a portion of said elevator, and a graft opening at said proximal end. |
