首页> 外国专利> Orthopedic implant used to repair intertrochanteric fractures and a method for inserting the same

Orthopedic implant used to repair intertrochanteric fractures and a method for inserting the same

机译:用于修复股骨粗隆间骨折的骨科植入物及其插入方法

摘要

The present invention relates to a medical device used to repair intertrochanteric fractures of the femur and a method for inserting and using the same which includes in cooperation a hip screw, a gliding mechanism, an intramedullary nail. and a compression screw. The hip screw includes along a longitudinal axis an externally threaded portion as a bone screw for threadable insertion into the head of the femur and a hollow barrel portion, the barrel portion having a pair of opposed slots provided therein along the longitudinal axis of the hip screw. The hollow barrel portion optionally further includes internal or female threads within the barrel portion near the end of the hip screw opposite the bone screw for threadably engaging a compression screw. The gliding mechanism is retained within the barrel portion of the hip screw with a slidable fit and provides for lateral movement of the intramedullary nail along the longitudinal axis of the hip screw. The hip screw and the intramedullary nail are retained by the gliding mechanism at either a fixed angle of the intramedullary nail relative to the hip screw or a variable angle. The intramedullary nail is affixed to the gliding mechanism, as for example with a set screw or locking screw, to prevent relative motion between the gliding mechanism and the intramedullary nail. Upon securing the gliding mechanism to the intramedullary nail, in turn the hip screw and the intramedullary nail are affixed to one another, but due to the slidable fit of the gliding mechanism within the barrel of the hip screw and due to the slots in the hip screw, movement of the gliding mechanism/intramedullary nail assembly along the longitudinal axis of the hip screw can occur as the gliding mechanism glides within the barrel portion of the hip screw.
机译:本发明涉及一种用于修复股骨粗隆间骨折的医疗器械及其插入和使用方法,该医疗器械包括髋螺钉,滑动机构,髓内钉。和一个压缩螺丝。髋部螺钉包括沿纵向轴线的作为骨螺钉的外螺纹部分,以可螺纹插入股骨的头部;以及中空的桶状部分,该桶状部分具有沿髋部螺钉的纵向轴线设置在其中的一对相对的狭槽。 。中空的枪管部分还可选地包括在枪管部分内的髋部螺钉的与骨螺钉相反的端部附近的内螺纹或阴螺纹,以螺纹地接合压缩螺钉。滑动机构以可滑动配合的方式保持在髋螺钉的枪管部分内,并且使髓内钉沿着髋螺钉的纵轴横向运动。髋部螺钉和髓内钉通过滑动机构保持在髓内钉相对于髋部螺钉的固定角度或可变角度处。髓内钉例如通过定位螺钉或锁定螺钉固定到滑动机构,以防止滑动机构与髓内钉之间的相对运动。在将滑动机构固定到髓内钉上之后,依次将髋部螺钉和髓内钉彼此固定,但是由于滑动机构在髋部螺钉的筒内的可滑动配合以及由于髋部中的狭槽当滑动机构在髋部螺钉的枪管部分内滑动时,滑动机构/髓内钉组件沿着髋部螺钉的纵轴的运动会发生。

著录项

  • 公开/公告号US2001034523A1

    专利类型

  • 公开/公告日2001-10-25

    原文格式PDF

  • 申请/专利权人 NELSON OWEN A.;

    申请/专利号US20010775266

  • 发明设计人 OWEN A. NELSON;

    申请日2001-02-01

  • 分类号A61B17/72;

  • 国家 US

  • 入库时间 2022-08-22 01:06:56

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