| 摘要 |
This osteosynthesis device is of the type comprising: a support provided with a through-orifice, at least one part of the height of which is threaded, and an anchoring rod having a threaded part forming a screw, the thread of said threaded part being complementary to that of said support orifice, in order to hold said rod on said support by screwing, said support and said rod furthermore including complementary bearing surfaces. The protruding ends of the screw threads and support threads are truncated in such a way that the difference between the outside screw diameter and the flank diameter is between 5 and 70% of the difference between the nominal diameter and the flank diameter, and the difference between the flank diameter Df and the core diameter is between 5 and 70% of the difference between the flank diameter and the root diameter. |
