Bone screw

  • US 9,566,093 B2
  • Filed: 12/22/2014
  • Issued: 02/14/2017
  • Est. Priority Date: 11/10/2000
  • Status: Expired due to Term
First Claim
Patent Images

1. A bone fixation assembly comprising:

  • a coupling element for coupling a rod to the bone fixation assembly, the coupling element having an upper end and a lower end and defining a first bore coaxial with a first longitudinal axis and a second bore communicating with the first bore, said coupling element having a U-shaped opening that extends from the upper end toward the lower end, and wherein the U-shaped opening is configured to receive the rod; and

    an anchoring element having a first end for insertion into bone and a second end positionable within the second bore and configured to engage a seat of the coupling element, wherein the anchoring element, when engaging the seat of the coupling element, is movable relative to the seat of the coupling element in at least a first direction at a first angle relative to the first longitudinal axis and in at least a second direction at a second angle relative to the first longitudinal axis, the second angle being greater than the first angle.

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