Patent ID: 8696713
Filing Date: 2014-04-15
Classification: A61B

Abstract:
1. An anchoring device adapted to attach an upper vertebra adjacent to a lower vertebra, the anchoring device comprising: a clamp and a fastener; the clamp comprising: an anterior end block, having a threaded pocket extending only partially through the anterior end block, a posterior end block, opposite the anterior end block, having an unthreaded through-hole, and a curved medial portion, wherein the curved medial portion rigidly connects the anterior end block to the posterior end block, wherein the curved medial portion spaces the anterior end block from the posterior end block; the fastener comprising: a shaft, a tip at one end of the shaft, a receiving head opposite the tip, wherein the receiving head is adapted to receive both an osteosynthesis rod and a securing nut; wherein in the installed position: the shaft extends through the unthreaded through-hole of the posterior end block, the shaft extends through the upper vertebra and the lower vertebra, at least a portion of the shaft threadedly engages the threaded pocket of the anterior end block, the receiving head is adjacent to the posterior end block, and the anterior end block and the posterior end block remain spaced by the curved medial portion sufficiently to allow the clamp to be positioned around an upper lateral mass of the lower vertebra and a lower lateral mass of the upper vertebra, thereby attaching the upper vertebra to the lower vertebra.