US 11,678,913 B2
Articulating derotators for deformity spinal systems and methods for use thereof
Heidi Farmer, Lafayette, CO (US); Jared Parker, Denver, CO (US); and Chad Coxon, Denver, CO (US)
Assigned to Zimmer Biomet Spine, Inc., Westminster, CO (US)
Filed by Zimmer Biomet Spine, Inc., Westminster, CO (US)
Filed on Nov. 6, 2019, as Appl. No. 16/675,885.
Application 16/675,885 is a division of application No. 15/683,555, filed on Aug. 22, 2017, granted, now 10,492,837.
Claims priority of provisional application 62/377,983, filed on Aug. 22, 2016.
Prior Publication US 2020/0138480 A1, May 7, 2020
Int. Cl. A61B 17/70 (2006.01); A61B 17/88 (2006.01); A61B 17/00 (2006.01); A61B 17/68 (2006.01)
CPC A61B 17/708 (2013.01) [A61B 17/7077 (2013.01); A61B 17/7085 (2013.01); A61B 17/7091 (2013.01); A61B 17/8866 (2013.01); A61B 17/7082 (2013.01); A61B 2017/00473 (2013.01); A61B 2017/00477 (2013.01); A61B 2017/00862 (2013.01); A61B 2017/681 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for coupling a plurality of derotator instruments into a series of a plurality of derotator instruments, the method comprising:
attaching a plurality of derotator instruments to a plurality of adjacent bone anchors, each derotator instrument comprising:
a shaft for connecting to a bone anchor;
a handle having a slot; and
an adjustable coupler pivotally connecting the shaft and the handle thereby enabling motion of the slot relative to the shaft;
adjusting one or more of the adjustable couplers to align at least one of the slots of the plurality of derotator instruments with at least one other slot of the plurality of derotator instruments, wherein adjusting comprises:
moving a first handle into one of a plurality of discrete positions relative to a first shaft via a first adjustable coupler connecting the first shaft and the first handle;
pulling a first handle away from a first shaft to overcome a spring force in a first adjustable coupler connecting the first shaft and the first handle;
pivoting the first handle to align a first catch with one of a plurality of slots within the first adjustable coupler; and
releasing the first handle and inserting the first catch into the one of the plurality of slots within the first adjustable coupler; and
inserting an elongate member through two or more slots of the plurality of derotator instruments that are aligned.