Patent ID: 8202303
Filing Date: 2012-06-19
Classification: A61B

Abstract:
1. Pedicle screw system with a closure device and a rod, made up of a flexible plastic, for stabilization of a vertebral column, said pedicle screw system comprising a pedicle screw having a rod, a substantially hollow cylindrical sleeve enclosing the rod, said sleeve being composed of a first half-shell and a second half-shell, the first half-shell and the second half-shell being connectable to each other, the two half-shells being clamped against each other via the clamping screw so that the rod in a clamped state is held between a first clamping surface, which is formed by an inner surface of the first half-shell, and a second clamping surface, which is formed by an inner surface of the second half-shell, stop faces of the cylindrical sleeve being provided on the first half-shell which are supported on support surfaces correspondingly provided on the second half-shell, the first half-shell and the second half-shell being one-piece connected to each other in an articulated way along one line of separation, and the first half-shell having at least one tab on a side able to be pivoted open, the tab engaging in a recess correspondingly provided on a side of the second half-shell, whereby during a clamping step, the clamping action against the rod, transmitted to the hollow cylindrical sleeve by the clamping screw, is limited, and for providing a form fitting connection between the clamping surfaces and the rod.