Patent ID: 9138264
Filing Date: 2015-09-22
Classification: A61B

Abstract:
1. A spinal implant system for attachment to a vertebra and to a spinal lamina bone portion of the vertebra after the vertebra has undergone a laminoplasty, the spinal implant system comprising: a first bone screw having a head and a shank; a laminoplasty rod having an end rod portion, a bone screw attachment boss, and a contoured portion connecting the end rod portion and the bone screw attachment boss, the end rod portion defining a first axis, the bone screw attachment boss having a bore to receive and engage the bone screw; a spinal rod bone screw assembly having a polyaxial head and a second bone screw, the polyaxial head configured to couple to the end rod portion of the laminoplasty rod; wherein the contoured portion comprises: wherein the head of the first bone screw is disposed inside of the bone screw attachment boss; wherein the bone attachment screw boss further includes a first point, a second point opposite the bore from the first point, and a linear second axis connecting the first point and the second point, wherein the linear second axis extends at a second angle relative to the transition portion and is parallel and offset relative to the first axis, and wherein the second angle comprises an acute angle, the bone attachment screw boss defines an angled channel extending radially out from the bore into an interior side of the bone screw boss.