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    • 78. 发明公开
    • Fixation device for bones
    • FixnyungsvorrichtungfürKnochen
    • EP2340776A1
    • 2011-07-06
    • EP11156966.1
    • 2007-07-26
    • Biedermann Motech GmbH
    • Biedermann, LutzMatthis, WilfriedSchwarzenbach, OthmarPabst, Martin
    • A61B17/80A61B17/86A61F2/44
    • A61F2/4455A61B17/8033A61B17/8052A61B17/8605A61F2/447A61F2/4611A61F2002/30774A61F2002/30784A61F2002/30787A61F2002/3079A61F2002/30794A61F2002/3082A61F2002/30841A61F2002/4475A61F2310/00023
    • A fixation device (100) for bones comprises a member (1) which is to be fixed to one or more bones (40, 42) and has at least one bore (2a-c, 2', 2'') for receiving a bone screw (30), wherein the at least one bore comprises a first internal thread portion (22a-c; 22'). The bone screw for insertion through the bore into the bone has a first shaft section provided with a first external thread portion (32) arranged to cooperate with the internal thread portion of the at least one bore, and a head section (36) having a diameter larger than that of the shaft section to provide a catch arranged to engage with a stop formed in the bore. The bone screw further has a second shaft section which comprises a clearance groove (34a) extending between the catch of the head section and the external thread (32) of the first shaft section. The clearance groove allows disengagement of the two thread portions, such that the bone screw is prevented from being unscrewed off the bore when it is loosened within the adjacent bone, e.g., a vertebral body. The member may comprise a side wall (4) of a cage used in an intervertebral implant device, or may represent a plate of a bone plate assembly.
    • 一种用于骨骼的固定装置(100)包括一个待固定到一个或多个骨头(40,42)上并具有至少一个孔(2a-c,2',2“)的构件(1) 骨螺钉(30),其中所述至少一个孔包括第一内螺纹部分(22a-c; 22')。 用于通过孔插入骨中的骨螺钉具有设置有第一外螺纹部分(32)的第一轴部分,第一外螺纹部分(32)布置成与所述至少一个孔的内螺纹部分配合,以及头部(36),其具有 直径大于轴部分的直径,以提供被设置成与形成在孔中的止动件接合的卡爪。 骨螺钉还具有第二轴部,该第二轴部包括在头部的卡止部与第一轴部的外螺纹(32)之间延伸的间隙槽(34a)。 间隙槽允许两个螺纹部分脱开,使得当螺钉在相邻的骨骼(例如椎体)内松动时,防止骨螺钉被拧开。 该构件可以包括用于椎间植入装置的保持架的侧壁(4),或者可以代表骨板组件的板。
    • 80. 发明公开
    • Bone anchoring device
    • 骨锚定装置
    • EP2311396A1
    • 2011-04-20
    • EP10196877.4
    • 2008-07-31
    • Biedermann Motech GmbH
    • Biedermann, LutzMatthis, WilfriedDannecker, Berthold
    • A61B17/70
    • A61B17/7037A61B17/7032A61B17/7034
    • A bone anchoring device is provided comprising
      a bone anchoring element (1, 1') having a shaft (2) for anchoring in the bone and a head (3, 3');
      a receiving part (5) for coupling a rod (6) to the bone anchoring element, wherein the receiving part comprises
      a first portion (9) with a first end (9a) and a second end (9b) and a U-shaped recess (12) for receiving the rod, the recess (12) extending from the first end (9a) in the direction of the second end (9b) thereby forming two free legs (12a, 12b) and
      a second portion (16) at the side of the second end (9b) opposite to the first end for accommodating the head (3, 3'), the second portion having a free end (17) and being flexible so as to allow introduction and clamping of the head;
      a locking ring (8) embracing the second portion (16);
      wherein the head (3, 3') is locked by means of exerting pressure with the rod onto the locking ring (8) resulting in compression of the second portion of the receiving part and
      wherein the locking ring (8) is mounted to the receiving part from the free end (17) of the second portion (16).
    • 提供一种骨锚固装置,其包括具有用于锚定在骨头中的轴(2)和头部(3,3')的骨锚固元件(1,1'); 用于将杆(6)联接到骨锚固元件的接收部分(5),其中接收部分包括具有第一端部(9a)和第二端部(9b)的第一部分(9)以及U形凹部 (12),所述凹部(12)从所述第一端部(9a)向所述第二端部(9b)的方向延伸,由此形成两个自由腿部(12a,12b),并且所述第二部分(16) 所述第二端部与所述第一端相对,用于容纳所述头部,所述第二部分具有自由端并且是柔性的,以允许引入和夹紧所述头部; 包括第二部分(16)的锁定环(8); 其中,所述头部(3,3')通过与所述杆一起施加到所述锁定环(8)上的压力而被锁定,导致所述接收部件的所述第二部分被压缩,并且其中所述锁定环(8)被安装到所述接收器 部分来自第二部分(16)的自由端(17)。