Patent ID: 8241363
Filing Date: 2012-08-14
Classification: A61B,A61F

Abstract:
1. A spacer for insertion between two vertebrae, said spacer having a variable axial height and comprising a first member and a second member guided within the first member to be slidable relative thereto in an axial direction thereof for adjusting an overall height, wherein the second member comprises an outer wall and ratchet notches provided at its outer wall facing the first member and extending in the axial direction, wherein the first member comprises a wall having an engagement member, which cooperates with the ratchet notches for adjusting the overall height of the spacer, and wherein the engagement member comprises i) a set screw and ii) a pressure plate having an outer face contacting the set screw and an inner face having teeth adapted to mate with the ratchet notches of the second member, wherein the first member comprises a distal portion having an assembly pin, and the second member comprises a distal portion having a corresponding assembly groove, and the assembly groove mates with the assembly pin in order to maintain the second member in a slidable orientation within the first member.