Patent ID: 7776038

Claim:
An intramedullary locking nail system for treating bone fractures which have spaced apart regions comprising: a nail having a shank with at least one hole for receiving a bone screw and at least one elongate hole elongated in an axial direction of the shank having two circular end portions, the circular end portions of the elongate hole being wider than an elongated adjacent hole portion of the elongate hole, the elongated adjacent hole portion having a length and a constant width over its length, wherein a longitudinal edge of the elongated adjacent hole portion forms a tangent to a circular periphery of the circular end portions; and a bone screw having a longitudinal extension and a cross-sectional contour deviating from a substantially circular form in a direction perpendicular to its longitudinal extension, wherein the bone screw is locked in one of the circular end portions in a first rotational position thereof and the bone screw may enter the elongate adjacent hole portion from the circular end portions in a second rotational position.