BONE ANCHORING DEVICE AND TOOL COOPERATING WITH SUCH A BONE ANCHORING DEVICE

摘要

PURPOSE: A bone fixing device and a device cooperating with the bone fixing device are provided to easily facilitate by pressurizing a head accommodating part using an outer locking ring. CONSTITUTION: A bone fixing element(1) comprises a shank. The shank fixes a bone to a head. An accommodating part(5) combines a rod to the bone fixing element. A rod accommodating part comprises a concave part(12) in a U-shape for accommodating the rod. The rod accommodating part comprises a first end(9a) and a second end(9b).