公开(公告)号：EP2219812A4

公开(公告)日：2013-12-25

申请号：EP08851629

申请日：2008-11-18

申请人： MEDICAL FACETS LLC

发明人： WILLERT WAYNE A ,  LOVELL KEVIN J ,  RUPP GLENN A

IPC分类号： B23G1/00 ,  A61B17/86

CPC分类号： A61B17/866 ,  A61B17/8625 ,  B23G9/001

摘要： A faceted bone screw and a method for manufacturing the same includes a screw thread configuration having facets that are substantially transverse to the thread. The facets are generally made up of a plurality of transitioning peaks and valleys which vary the depth of the thread and are disposed in one or more locations throughout the threaded portion of the bone screw. The facets operate to reduce the torque required to drive the bone screw into bone, while at the same time operate to assist in anchoring the bone screw within the bone once inserted therein, and thereby reduce the possibility for the screw backing out after insertion.

摘要翻译： 小面骨螺钉及其制造方法包括具有基本横向于线的小平面的螺纹构造。 小面通常由多个转变的峰和谷组成，这些峰和谷改变了螺纹的深度并且设置在贯穿螺钉螺纹部分的一个或多个位置。 小面操作以减少将骨螺钉驱动到骨骼中所需的扭矩，同时操作以帮助将骨螺钉一旦插入其中将骨螺钉锚定在骨骼内，从而减少插入后的螺钉退出的可能性。