公开(公告)号：WO2022154966A1

公开(公告)日：2022-07-21

申请号：PCT/US2021/065562

申请日：2021-12-29

Applicant: ZIMMER BIOMET SPINE, INC. ,  MAST, Randall G. ,  CAPOTE, Allison Christine ,  SERRA, Thomas ,  SPOHN, John ,  GANDHI, Anup ,  CLAESON, Amy

Inventor： MAST, Randall G. ,  CAPOTE, Allison Christine ,  SERRA, Thomas ,  SPOHN, John ,  GANDHI, Anup ,  CLAESON, Amy

IPC: A61B17/70 ,  A61B17/80

Abstract: Various implants and surgical techniques for dynamic spinal tethering systems are discussed. In an example, a spinal tethering system can comprise a flexible elongate spinal tethering cord and a plurality of vertebral implants connecting the cord across at least four spinal levels, in this example, each vertebral implant of the plurality of vertebral implants can include a dynamic head coupling each vertebral implant to the cord. The dynamic head of each vertebral implant can be configured to share cord tension across multiple spinal levels by releasing a first tension generated at a first level between two vertebral implants of the plurality of vertebral implants to generate a second tension across two spinal levels between three vertebral implants of the plurality of vertebral implants, wherein the second tension is lower than the first tension.