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    • 2. 发明申请
    • Vertebral fixation device for the treatment of spondylolisthesis
    • 脊椎固定装置用于治疗脊椎前移
    • US20060293659A1
    • 2006-12-28
    • US10584812
    • 2003-07-25
    • Luis Alvarez
    • Luis Alvarez
    • A61F2/30
    • A61B17/7037A61B17/7002A61B17/7032
    • The invention relates to a vertebral fixation device for the treatment of spinal conditions and more specifically spondylolisthesis. The inventive device comprises a screw (1) which is intended to be fixed to a bone and a tulip element (2) comprising vertical notches (3) in which a bar (4) moves vertically, said bar forming the connection between screws (1) belonging to other devices. The position of the aforementioned bar (4) is adjusted in relation to the bone using a support nut (15). Moreover, the bar (4) rests on the upper face of the support nut (15), such that the rotation of said nut (15) determines the vertical displacement of the bar (4) in relation to the bone, the bar remaining fixed in position by means of the closing screw (5). The invention further comprises a rosette element (8) having an inner housing which is used to house the head of the screw (1) in such a way that the head, and consequently the screw (1), remain connected to the tulip (2).
    • 本发明涉及一种脊椎固定装置,用于治疗脊柱病症,更具体地说是脊椎前移。 本发明的装置包括一个意图固定在一个骨头上的螺钉(1)和一个包括垂直切口(3)的郁金香元件(2),其中杆(4)垂直移动,所述杆形成螺钉(1 )属于其他设备。 使用支撑螺母(15)相对于骨骼调节上述杆(4)的位置。 此外,杆(4)搁置在支撑螺母(15)的上表面上,使得所述螺母(15)的旋转确定杆(4)相对于骨的垂直位移,杆保持固定 通过关闭螺钉(5)的位置。 本发明还包括具有内壳体的花环元件(8),所述内壳体用于容纳螺钉(1)的头部,使得头部以及因此的螺钉(1)保持连接到郁金香(2) )。