Patent ID: 7766948
Filing Date: 2010-08-03
Classification: A61B

Abstract:
1. A bone fixation assembly comprising: a fixation member; at least one aperture formed through said fixation member; at least two locking features circumferentially spaced around an inner perimeter of said at least one aperture and including a first end, a second end, and a ramp extending between said first end and said second end, said first end being open in a direction substantially parallel to an axis extending through said at least one aperture and said second end including a groove having a longitudinal axis formed substantially perpendicular to said axis extending through said at least one aperture; and a fastener received within said at least one aperture and including at least two discrete locking members extending from said fastener and respectively received in said at least two locking features, said at least two locking members being circumferentially spaced around an outer perimeter of said at least one fastener and received within said first end in an unlocked state and received within said groove of said second end in a locked state to restrict removal of said fastener from said at least one aperture.