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    • 45. 发明申请
    • System and Method for Locating of Distal Holes of an Intramedullary Nail
    • 髓内钉远端定位系统及方法
    • US20090306665A1
    • 2009-12-10
    • US12308877
    • 2007-07-01
    • Alexander LernerAlexander NassonovLev Diamant
    • Alexander LernerAlexander NassonovLev Diamant
    • A61B17/58
    • A61B17/1703A61B17/1725A61B90/36A61B90/361A61B90/39A61B2090/373
    • Systems and methods for use with a hollow intramedullary nail having a proximal end, a distal end and at least one distal hole formed in the nail's wall adjacent said distal end and having a hole axis, for detecting a location of said distal hole when the nail is implanted into a intramedullary canal of a bone. The system includes a jig adapted for being mounted on said bone so as to constitute a bridge between the proximal end of said nail and a distal end of said bone, and having a positioning head with a guiding axis oriented generally perpendicular to the nail longitudinal axis, adapted for receiving therein at least a drill bit so that the drill bit's axis is aligned with said guiding axis, the positioning head being movable to bring said guiding axis into different spatial positions with respect to said hole axis. The system may further include at least one of the following: a disposable member insertable into said nail and having a nail light source for emitting light along said distal hole axis so as to create an illuminated spot on an outer surface of said bone, said nail light source is of a kind providing collimated light and, said member further includes means for positioning an axis of a collimated beam created by said light along said hole axis; viewing optics mountable in said positioning head along said guiding axis for viewing said illuminated spot; an alignment pin having a pin proximal end, a pin distal end, and a pin axis, and being adapted for mounting in said positioning head so that said pin axis is aligned with said guiding axis and so that the pin distal end faces towards the bone, where the pin further includes reference marks on its outer surface, visible in X-ray images.
    • 用于中空髓内钉的系统和方法,其具有邻近所述远端形成在钉壁上的近端,远端和至少一个远端孔,并且具有孔轴线,用于在钉子处检测所述远端孔的位置 被植入骨髓内管。 所述系统包括适于安装在所述骨上的夹具,以便构成所述钉的近端和所述骨的远端之间的桥,并且具有定位头,所述定位头具有大致垂直于所述指甲纵向轴线定向的引导轴线 ,其适于在其中容纳至少一个钻头,使得钻头的轴线与所述引导轴线对齐,所述定位头部可移动以使所述引导轴线相对于所述孔轴线进入不同的空间位置。 该系统还可以包括以下中的至少一个:一次性构件,其可插入到所述钉中并具有用于沿着所述远端轴线发射光的指甲光源,以在所述骨的外表面上产生照明斑点,所述指甲 光源是提供准直光的一种,并且所述部件还包括用于沿着所述孔轴定位由所述光产生的准直光束的轴线的装置; 观察光学装置,其可沿着所述引导轴安装在所述定位头中,用于观察所述照明光斑; 具有销近端,销远端和销轴线的对准销,并且适于安装在所述定位头中,使得所述销轴线与所述引导轴线对准,并且使得销的远端朝向骨头 ,其中销在其外表面上还包括参考标记,在X射线图像中可见。