Adjustable-angle spinal fixation element

摘要

A spinal fixation device is provided having first and second elongate members that are angularly adjustable relative to one another. Each elongate member can include a connecting feature formed on a terminal end thereof, and each connecting feature can be coupled to one another to allow angular movement of the first and second elongate members. The device can also include a locking mechanism that is adapted to couple to the connecting feature on each of the first and second elongate members to lock the elongate members in a fixed position relative to one another.

主权项

1. A spinal fixation system, comprising:
a first elongate member having a female connector with opposed arms and a second elongate member having a male connector configured to be received between the opposed arms of the female connector, the first and second elongate members being movably coupled to one another; a pin that extends through at least a portion of the male and female connectors so that the male and female connectors are movably connected to each other, the pin having a central axis about which the male and female connectors rotate and which extends substantially perpendicular to longitudinal axes of the first and second elongate members; a threaded locking screw configured to engage the male connector to lock the first and second elongate members in a fixed position relative to one another; and a spinal anchor implantable in bone and configured to mate to at least one of the first and second elongate members; wherein the first and second elongate members are biocompatible, internally implantable spinal rods.