Patent ID: 9707019
Date: 2017-07-18
CPC Classifications: A61B

Claim:
1. A reduction sleeve, comprising: a sleeve body having a proximal end and a distal end, the distal end being adapted to detachably couple to a separate collar of a bone fastener assembly, the sleeve body defining: an alignment feature coupling with three alignment passages in the proximal end of the sleeve body and configured to allow the sleeve and the collar to be coupled in only one orientation with the first set of threads and the second set of threads properly timed to form the continuous set of threads to allow the closure member to transition from the first set of threads to the second set of threads, the three alignment passages including a first locking alignment passage configured to receive a threaded locking feature of the alignment feature; wherein the sleeve is adapted for use to perform reduction in minimally invasive surgeries to install a spinal stabilization system.