| 摘要 |
<p>A bone anchoring device is provided including
a bone anchoring element (2, 2', 2", 2"') having a shank (3) and a head (4),
a receiver member (5, 50, 50', 50", 50'") for receiving the head (4) of the bone anchoring element and for receiving a rod (20),
wherein the receiver member has a first chamber (6, 6', 60, 60', 60", 60"') for receiving the head therein, the head being pivotable in the first chamber,
and a second chamber (7, 7', 70, 70', 70", 70"') with a channel for receiving the rod,
a first locking element (11) for fixing the head in the first chamber at an angle, and
a second locking element (16, 16', 16", 16"') for fixing the rod in the second chamber,
wherein the first chamber and the second chamber are arranged in such a way that the head and the rod can be inserted and locked independently from each other, and
wherein the head is fixed by exerting pressure onto it. The bone anchoring device is particularly applicable to the stabilization of the spine in the sacro-iliac and the cervical region.</p> |
