| 摘要 |
Vertebral member (2) includes two side branches (6) with opening (32) capable of receiving rod (12). The collar (16) engages the branches (6) to secure itself in place and, through the action of lock (18), to engage the ring (14) on the rod (12). Both collar (16) and lock (18) are capable of securing each other through interaction of threaded segments (28,30). |
