Patent ID: 8523914
Filing Date: 2013-09-03
Classification: A61B

Abstract:
1. A bone anchor, comprising: a bone engaging portion having a longitudinal axis and adapted for anchoring to bone; a tool engaging portion extending axially from said bone engaging portion and sized and shaped for engagement with an anchor removal tool; a head portion having a transverse base portion and two arm portions extending from said transverse base portion generally along the longitudinal axis to define a U-shaped channel having an opening defined between distal ends of said arm portions and intersecting the longitudinal axis and sized to axially receive an elongate member into said U-shaped channel; and a reduced strength portion positioned below said U-shaped channel extending between said tool engaging portion and said head portion and defining a region of reduced strength relative to adjacent portions of said tool engaging portion and said head portion to provide a pre-defined fracture initiator zone.