US 10,376,290 B2
Bone plate and plating system for use of same
Steve Courtney, Plano, TX (US); and David Freehill, Temple, TX (US)
Assigned to Eminent Spine LLC, Georgetown, TX (US)
Filed by Eminent Spine LLC, Georgetown, TX (US)
Filed on Apr. 1, 2014, as Appl. No. 14/242,670.
Application 14/242,670 is a continuation of application No. 12/629,779, filed on Dec. 2, 2009, granted, now 8,685,069.
Claims priority of provisional application 61/119,324, filed on Dec. 2, 2008.
Prior Publication US 2014/0214093 A1, Jul. 31, 2014
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/80 (2006.01); A61B 17/86 (2006.01); A61B 17/70 (2006.01)
CPC A61B 17/7059 (2013.01) [A61B 17/809 (2013.01); A61B 17/8052 (2013.01); A61B 17/8057 (2013.01); A61B 17/8061 (2013.01); A61B 17/8605 (2013.01); A61B 17/8066 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A bone plating system adapted for contacting at least a portion of a bone, the plating system comprising:
a plate including a body having a span sufficient to overlap a portion of the bone, the body having a lower surface for placement against the bone and an upper surface opposite the lower surface;
a screw hole extending through the body from the upper surface through the lower surface, the screw hole being adapted to receive a bone screw to attach for engaging the plate to the bone;
wherein the screw hole includes a counterbore having a beveled surface that intersects at a pinch point a bore having a conical surface of revolution that transitions into the lower surface;
wherein the beveled surface has a variable geometry defining alternating linear contact bone screw regions and arcuate non-contact bone screw regions that are interleaved and rotationally-spaced;
wherein the beveled surface comprises an uninterrupted, circumferentially continuous surface;
a screw configured to be inserted into the bone, the screw having a head region configured to be secured within the screw hole and an elongated body extending therefrom to a distal end of the screw, the elongated body including a threaded portion for engaging the bone;
wherein the screw includes a proximal root portion of the head region, the proximal root portion having a sloping radial surface ending in a continuous rib which radially projects from the screw; and
wherein the pinch point flexibly captures the screw to limit axial travel by a detented engagement between the pinch point and a junction of the sloping radial surface and the continuous rib.