| 摘要 |
A shackle element, a method of making a shackle element, a hook and a rod connector. The shackle element (18) is used for fastening a hook (12), or respectively a rod connector, on a fixation rod (10). The shackle element (18) forms a groove with a lateral opening for inserting the fixation rod (10). The groove is delimited by a groove bottom (18.1) and two lateral wails (18.2, 18.3). After mounting the groove bottom (18.1) encloses the fixation rod (10) over an angle of 180° plus a partial angle. The lateral walls are arranged under a small angle; their distance increases with growing distance from the groove bottom so that the lateral opening is large enough for introducing the rod. The lateral walls are intended to be pushed together by means of a screw device (20.1, 20.2) for clamping the fixation rod (10). The groove bottom (18.1) encloses the fixation rod (10) over an angle of 180° plus a partial angle. The hook (12) has the shackle element (18) and a hook element (16), which grips a laterally extending portion (1) of a spine of a patient underneath or from above. The rod connector (32) has the shackle element (18) and a clamping device (34) for a transverse rod (10.1), which is oriented transversely in respect to the fixation rod (10). The hook (12) and the rod connector (32), along with fixation rods (10) and transverse rods (10.1), are employed as parts of internal orthopedic fixation devices.
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