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Bone anchor systems

  • US 9,610,106 B2
  • Filed: 05/20/2015
  • Issued: 04/04/2017
  • Est. Priority Date: 12/28/2005
  • Status: Active Grant
First Claim
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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.

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