Patent ID: 8298267
Filing Date: 2012-10-30
Classification: A61B

Abstract:
1. An implant adapted to be implanted in a spine comprising: a bone anchor having a proximal head, a distal tip, and a longitudinal axis; a cavity formed in the proximal head of the bone anchor coaxial with the longitudinal axis; a deflection rod having a proximal end and a distal end, the deflection rod being disposed in the cavity aligned with the longitudinal axis such that the proximal end extends out of the cavity and the distal end is secured to said bone anchor within said cavity; wherein a deflectable portion of the deflection rod disposed within the cavity is spaced from the proximal head of the bone anchor such that the deflectable portion of the deflection rod can deflect within said cavity transverse to the longitudinal axis in response to a load applied to the proximal end of the deflection rod; a bone anchor thread which extends along said bone anchor from said distal tip to a point further from the distal tip than the distal end of the deflection rod such that at least a portion of said deflectable portion of said deflection rod is adapted to be implanted beneath the surface of a bone.