Patent ID: 9610106
Date: 2017-04-04
CPC Classifications: A61B,A61F

Claim:
1. A bone anchor system comprising: a bone anchor configured for insertion into an outer surface of a vertebral body that is perpendicular to an endplate surface of the vertebral body, the bone anchor comprising: a neck, wherein said neck comprises an attachment site along at least a portion of its length; a plate-like keel extending at least substantially perpendicular from the neck and comprising a leading edge, wherein the leading edge of the plate-like keel is configured for advancement within the outer surface of the vertebral body along a trajectory that is at least substantially parallel with the endplate surface, wherein said attachment site is configured to be positioned such that at least a portion of the attachment site remains proud of the endplate surface of the vertebral body upon insertion of the bone anchor, wherein the plate-like keel is configured for countersinking within said outer surface of the vertebral body such that no portion of said bone anchor remains outside said outer surface; and a flexible barrier coupled to the attachment site such that the flexible barrier is proud of the endplate surface upon insertion of the bone anchor.