Patent ID: 8709051
Filing Date: 2014-04-29
Classification: A61B

Abstract:
1. A spinal fixation system, comprising: at least one rod; at least one screw having a head at a first end, wherein the head of the screw comprises at least one deformation element portion, wherein the deformation element portion comprises an initial undeformed surface shape, and wherein the head of the screw and the deformation element portion are integrally formed; at least one body, wherein the body has a first end and a second end, wherein a rod receiving channel is disposed adjacent the first end of the body, wherein a screw head receiving chamber is disposed adjacent the second end of the body, wherein the screw head receiving chamber is tapered towards the second end of the body, and wherein the rod receiving channel and the screw head receiving chamber are operatively connected; and a compression element which cooperates with the body to push the rod, when the rod is disposed within the rod receiving channel, into contact with at least part of the deformation element portion of the head of the screw to deform the deformation element portion while pressing the head of the screw towards the tapered end of the screw head receiving chamber to fix an angular relationship of the screw relative to the rod, wherein the deformed deformation element portion comprises a deformed surface shape complementary to a shape of the rod.