Patent ID: 8118848

Claim:
A surgical plate system, comprising: a pre-contoured Y-shaped plate that has an inferior surface and which has a concentric superior surface, the plate consisting of a trunk and a pair of a first arm and a second arm, the trunk having a linear medial longitudinal axis along the superior surface extending between a first and a second end, and the inferior surface of the plate defining a curve transverse to the medial axis, the trunk including at least one screw hole and, the first arm and the second arm extending from the first end of the trunk, the inferior surface of the first arm and of the second arm spiraling around the medial longitudinal axis of the trunk, the first arm having an ear with at least one screw hole defining a first screw axis perpendicular to a tangent to the top surface of the first ear, the first ear being attached to the trunk by a linking section, a first angle and a first length being defined by a line from the center of the first arm screw hole to the intersection of the medial longitudinal axis of the trunk, and, the second arm having a second ear with at least one second screw hole defining a second screw, axis perpendicular to a tangent to the top surface of the second ear, the second ear being attached to the trunk by a linking section, a second angle and a second length being defined by a line from the center of the second arm screw hole to the intersection of the medial longitudinal axis of the trunk, and the first angle and the first length being different from the second angle and the second length whereby the first screw axis and the second screw axis converge toward the inferior side of the plate but do not intersect to allow for multiplanar fixation, and the plate system further including at least one screw having a threaded shaft and a head wherein at least one screw hole includes internal threads and the screw head includes corresponding external threads which mate to fix the orientation of the screw in the screw hole at a locked angular orientation of the screw axis, and a drill guide, and the screw hole includes guide keyways which orient the angle, of the drill guide relative to the plate.