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    • 2. 发明申请
    • PEDICLE SCREW SYSTEM
    • PEDICLE螺丝系统
    • US20150080956A1
    • 2015-03-19
    • US14488706
    • 2014-09-17
    • Gary D. Fleischer
    • Gary D. Fleischer
    • A61B17/70
    • A61B17/8866A61B17/7041A61F2/4455A61F2/4611
    • A pedicle screw system that includes a pedicle screw and a collar. The pedicle screw includes an insertion portion, a shaft portion that extends from the insertion portion, and a head portion that is attached to the shaft portion. The head portion has a diameter that is larger than the shaft portion. The collar includes a first aperture and a second aperture. The first aperture and the second aperture are both adapted to receive the head portion. The first aperture includes a first aperture section and a second aperture section. The first aperture section is larger than the head portion. The second aperture section is smaller than the head portion.
    • 椎弓根螺钉系统,包括椎弓根螺钉和颈环。 椎弓根螺钉包括插入部分,从插入部分延伸的轴部分和附接到轴部分的头部。 头部具有比轴部大的直径。 套环包括第一孔和第二孔。 第一孔和第二孔都适于接收头部。 第一光圈包括第一光圈部分和第二光圈部分。 第一开口部分大于头部。 第二开口部小于头部。