| 摘要 |
<p>A bone anchoring device is provided comprising an anchoring element having a shank (2) to be anchored in a bone or a vertebra, a rod (9) for connecting at least two anchoring elements, the rod being made of an elastic material, a receiving part (3) being connected to the shank (2) for receiving the rod, a seat (8) for the rod being provided in the receiving part the seat having a rod contacting surface, a locking device (10) cooperating with the receiving part for fixation of the rod in the seat, the locking device comprising a rod contacting surface, wherein the rod contacting surface of the seat and/or the rod contacting surface of the locking device comprises an engagement structure (11,12) for engaging the rod, the engagement structure having an asymmetric cross section.</p> |
