EXPANDABLE INTERVERTEBRAL IMPLANT

摘要

An expandable intervertebral implant includes a front wall, a back wall spaced apart from the front wall, and two side walls connecting the front wall and the back wall at their respective ends. The walls define a space. The implant further includes a bottom face, a top face, at least one engagement member with an engagement surface for engagement with the end plate of a vertebral body, a first adjusting element and a second adjusting element which are supported by a first support member and a second support member, respectively, and which cooperate with the respective support member such that the engagement member is reciprocally movable between a first end position and a second end position. In the first end position, the engagement surface does not project beyond the bottom face or the top face and in the second end position, the engagement surface at least partially projects outwardly beyond the bottom face or the top face. The first and the second support members are coupled by a coupling mechanism.

主权项

1. An expandable intervertebral implant comprising:
a front wall; a back wall spaced apart from the front wall; two side walls connecting the front wall and the back wall at their respective ends, the front wall, back wall and the two side walls defining a space; a bottom face; a top face; at least one engagement member with an engagement surface configured to engage an end plate of a vertebral body; a first adjusting element and a second adjusting element which are supported by a first support member and a second support member, respectively, and which cooperate with the respective support member such that the engagement member is reciprocally movable between a first end position and a second end position wherein the engagement surface at least partially projects outwardly beyond the bottom face or the top face, the second end position being different from the first end position; wherein the first and the second support members are coupled by a coupling mechanism; and wherein an axis of movement of the first support member and an axis of movement of the second support member define an angle which is different from zero.