Patent ID: 8167913
Filing Date: 2012-05-01
Classification: A61B

Abstract:
1. A stabilization system for implantation in a patient, comprising: a bone anchor including a head and a shaft, the shaft extending away from the head in a bone insertion direction and being operable for connection to a bone of the patient; and a tulip including: a base including an anchor engagement element defined by a volume formed from an inner and an outer surface of the base to couple to the head of the anchor, such that the anchor engagement element and the head are of substantially complementary shape to permit articulation of the tulip about the head, the channel and the base are arranged such that a central, longitudinal axis of the base coincides with a central, longitudinal axis of the channel, wherein the fastening mechanism is operable to apply the tangential load on the elongate member such that both the elongate member is fixed with respect to the tulip and the tulip is fixed with respect to the anchor and the volume of the anchor engagement element is in communication with the channel such that a portion of the head extends into the channel.