Patent ID: 7029498
Filing Date: 2006-04-18
Classification: A61F

Abstract:
1. A height-variable vertebral body implant comprising: a first, essentially U-shaped or C-shaped cage including vertebral support surfaces; wherein the first cage is an inner cage, which is embraced and guided in a telescopic manner by a second, outer U-shaped or C-shaped cage including vertebral support surfaces, and wherein legs of the first and the second cages are aligned such that a continuous lateral opening is obtained, and the first and the second cages are configured to be mutually fixed in a predetermined final position, wherein at least one of frontal sides of each the first and second cages include at least one of the vertebral support surfaces and webs and tooth-like locking projections extending in a longitudinal direction, and the legs of the first and the second cages each comprise, on leg ends, an inwardly directed stability-increasing curved portion, with the first cage including an elongated hole extending in the longitudinal direction and including a unilateral toothing, wherein in cooperation with an instrument comprising a complementary toothing, a relative movement and an adjustment between the cages is effected.