US 11,931,081 B2
Monoaxial-uniplanar hybrid screw
George Yacoub, Conshohocken, PA (US)
Assigned to Globus Medical Inc., Exton, PA (US)
Filed by GLOBUS MEDICAL, INC., Audubon, PA (US)
Filed on Sep. 21, 2020, as Appl. No. 17/026,540.
Prior Publication US 2022/0087721 A1, Mar. 24, 2022
Int. Cl. A61B 17/70 (2006.01); A61B 17/56 (2006.01)
CPC A61B 17/7038 (2013.01) [A61B 17/7032 (2013.01); A61B 17/7037 (2013.01); A61B 2017/564 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A spinal rod anchoring device comprising:
a body comprising a distal end and a proximal end, wherein a threaded bone anchor extends along a longitudinal axis and is positioned toward the distal end, and a U-shaped head portion is positioned toward the proximal end, wherein the head portion is formed by a concave base with an extension on each end of the concave base, wherein the head portion and the threaded bone anchor are attached to one another;
a saddle comprising a convex curvature at its lower surface and a concave interior region, wherein the interior region has an open channel therewithin, wherein the convex curvature of the saddle is slidably seated within the concave base of the head portion for arcuate sliding movement of the saddle relative to the head portion, wherein the open channel is sized to allow at least a portion of the saddle to extend beyond the head portion during the arcuate sliding movement and wherein a spinal connection element is configured to be disposed on the saddle; and
a retaining pin configured to be inserted along the longitudinal axis through the open channel in the saddle and secured in a groove, wherein the groove is centrally positioned within the head portion, wherein the retaining pin slidably secures the saddle to the head portion;
wherein the saddle rotates about a single axis and angulates the spinal connection element about the single axis thereof.