Minimally invasive pedicle screw extension sleeve system
US10603086B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2018 |
| Grant date | Mar 31, 2020 |
| Priority date | — |
| Expiry date | May 16, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/037
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.