Patent ID: 9220548
Filing Date: 2015-12-29
Classification: A61B

Abstract:
1. A bone plating system for stabilizing bones or bone fragments, including segments of the spinal column, comprising: a bone plate having an upper plate surface, a lower plate surface, a longitudinal axis, at least one fixation hole, the fixation hole passing through the upper surface and lower surface and having an undercut portion and a lower hole portion, the lower hole portion including a tapered section; at least one resilient clip disposed within the undercut portion of the at least one fixation hole; a first fastener elongate along a first fastener axis, the first fastener having a first head and a first shaft that extends out from the first head, the first head including a first lower portion and a first clip portion disposed above the first lower portion, wherein a diameter of the first clip portion is less than a diameter of the first lower portion, and the first clip portion includes a first upper tapered surface and a first lower tapered surface opposite the first upper tapered surface so as to define a first perimetral groove therebetween that is configured to receive the at least one resilient clip when the first fastener is seated in the at least one fixation hole to resist the first fastener from backing out of the plate, the first lower portion having a spherical portion that is configured to be operatively associated with the tapered section of the lower hole portion when the first fastener is seated in the lower hole portion to permit the first fastener to be inserted at a variety of insertion angles relative to the plate, wherein the first upper and lower tapered surfaces diverge from each other along a direction away from the first fastener axis and are each oriented at a non-zero angle with respect to a plane that is perpendicular to the first fastener axis; and