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发明公开
CN101856265A 骨科滑丝螺钉取出器 无效 - 撤回

  • 专利标题： 骨科滑丝螺钉取出器
  • 专利标题（英）： Extractor of orthopedic slipped screws
  • 申请号： CN201010196507.0
    申请日： 2010-06-02
  • 公开(公告)号： CN101856265A
    公开(公告)日： 2010-10-13
  • 发明人: 王书军 , 李桂兰 , 包琴芬 , 唐烨
  • 申请人： 王书军
  • 申请人地址： 江苏省张家港市金刚大道279号澳洋医院骨科
  • 专利权人： 王书军
  • 当前专利权人： 王书军
  • 当前专利权人地址： 江苏省张家港市金刚大道279号澳洋医院骨科
  • 主分类号： A61B17/92
  • IPC分类号： A61B17/92
骨科滑丝螺钉取出器
摘要：
本发明的为骨科滑丝螺钉取出器，涉及骨科手术器械，主要包括螺丝刀体及主杆套筒，特点是螺丝刀体下端设置在主杆套筒内，上端为开有纵向槽口的锥形内空刀头；主杆套筒外安装设置有锥头杆的推进环，锥头杆上端设计为与内空刀头相应的锥形，且伸入内空刀头内，使刀头膨胀。可取出阻力较大、传统螺丝刀不能旋动的螺丝钉，特别是已经滑丝的螺钉。
摘要（英）：

The invention provides an extractor of orthopedic slipped screws, relating to an orthopedic surgical instrument and mainly comprising a screwdriver body and a main rod sleeve. The extractor of orthopedic slipped screws is characterized in that the lower end of the screwdriver body is arranged in the main rod sleeve, and the upper end of the screwdriver body is a conical hollow cutter head provided with a longitudinal notch; and a propelling ring provided with a conical head rod is installed outside the main rod sleeve, and the upper end of the conical head rod is designed into a conical shape corresponding to the hollow cutter head and extends into the hollow cutter head so that the cutter head is expanded. The invention can be used for extracting screws which have larger resistance and can not be screwed by the traditional screwdriver, especially slipped screws.

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