| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an improved receiving part for receiving a rod for coupling the rod to a bone anchoring element. <P>SOLUTION: The receiving part includes a rod receiving portion 9 with a channel 12 for receiving a rod and a receiving part body 5 with a head receiving portion 16 for accommodating a head 3 of the bone anchoring element and a locking ring 8 embracing the head receiving portion 16. The head receiving portion 16 has an open end 17 and being flexible so as to allow introduction and clamping of the head 3 and having an exterior surface with a tip thinner tapered portion. The locking ring 8 has an interior surface with a curved portion 8a which presses against the tip thinner tapered portion of the exterior surface of the head receiving portion 16 to clamp the head 3. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
