Patent ID: 9439679
Filing Date: 2016-09-13
CPC Classification: A61B

Claim Text:
1. A bone fixation system for controlling the alignment of adjacent vertebrae after spinal surgery, which system comprises aligned first and second fixation rods; first and second mounts for installation on respective spaced vertebrae and for securing said first and second fixation rods, respectively; and a third mount for installation on a third vertebrae between the first and second mounts and respective spaced vertebrae, said third mount for securing a sleeve for receiving the juxtaposed ends of the first and second fixation rods in alignment between the first and second mounts, at least one of the aligned fixation rods being movable in the sleeve relative to the other to allow controlled movement of adjacent vertebra; wherein the sleeve includes a stop whereby said movement of at least one of the rods is restricted to retain a minimum end length thereof in the sleeve; and wherein an internal spigot in the sleeve is received in a longitudinal groove extending axially on the respective rod surface, the groove terminating short of the rod end.