摘要：

The implant has a locking part (130) locking a linkage rod (10) in the interior of a threaded housing. A threaded plug (132) and a ring (131) are integrated with each other before mounting on a mounting part (120). A locking screw (133) has a threaded body screwed in the plug to lock the plug in the part (120). The screw has a holding head (133B) that emerges from the plug and is provided with a locking margin (133D).

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