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    • 4. 发明专利
    • Bone anchoring device
    • 骨锚固装置
    • JP2012125564A
    • 2012-07-05
    • JP2011266670
    • 2011-12-06
    • Biedermann Technologies Gmbh & Co Kgビーダーマン・テクノロジーズ・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング・ウント・コンパニー・コマンディートゲゼルシャフトBiedermann Technologies Gmbh & Co. Kg
    • BIEDERMANN LUTZMATTHIS WILFRIEDDANNECKER BERTHOLD
    • A61B17/68
    • A61B17/7037
    • PROBLEM TO BE SOLVED: To provide an improved bone anchoring device which has a small size and which allows for safe handling during surgery.SOLUTION: The bone anchoring device includes a locking ring (8) configured to embrace the head receiving portion (16). A head (3) is configured to be locked in the head receiving portion (16) by compressing the head receiving portion with the locking ring. A rod receiving portion (9) has two cutouts (24) at both ends of the channel extending from the bottom of the channel to a second end (9b) of the rod receiving portion. The locking ring includes two projections (81, 83) located diametrically opposite to each other, wherein when the locking ring is in a position in which the head is not locked, the projection is configured to extend through the cutout (24) and into the channel (12). An first engagement portion (83, 85) is provided on the locking ring for engaging a second engagement portion (25) at an inner wall of the channel to hold the locking ring in a position in which the head is pivotable in the head receiving portion but is prevented from removal therefrom.
    • 要解决的问题:提供一种改进的骨锚固装置,其具有小尺寸并且允许在手术期间的安全处理。 骨锚固装置包括构造成包围头部接收部分(16)的锁定环(8)。 头部(3)被构造成通过用锁定环压缩头部接收部分而被锁定在头部接收部分(16)中。 杆接收部分(9)在通道的两端处具有从通道的底部延伸到杆接收部分的第二端(9b)的两个切口(24)。 锁定环包括彼此径向相对设置的两个突起(81,83),其中当锁定环处于头部未被锁定的位置时,突起构造成延伸穿过切口(24)并进入 通道(12)。 第一接合部分(83,85)设置在所述锁定环上,用于在所述通道的内壁处接合第二接合部分(25),以将所述锁定环保持在所述头部能够在所述头部接收部分中枢转的位置 但是防止其从中移除。 版权所有(C)2012,JPO&INPIT