John Stokes,David L. Greenwald,Josh Kaufmann,Greg Calbert,Scott Bryant,Landon Gilkey,Brian Bergeron
申请号：
US15981445
公开号：
US20180256212A1
申请日:
2018.05.16
申请国别(地区):
US
年份:
2018
代理人:
摘要：
An embodiment includes a system comprising: a tulip including a slot to receive a linkage, first and second side walls that define a portion of the slot, and a ring that couples the first side wall to the second side wall； wherein the ring couples to the first side wall at a thinned first proximal fulcrum and to the second side wall at a thinned second proximal fulcrum and the ring pivots about the first and second proximal fulcrums when the ring is forced proximally； wherein the first side wall includes a first sidewall projection that projects past the first proximal fulcrum and the second side wall includes a second sidewall projection that projects past the second proximal fulcrum. Other embodiments are described herein.
