Minimally-invasive surgery pedicle screw and rod assembly, inserter tool, and insertion method for use in spinal stabilization procedures
US9924981B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 20, 2015 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | Nov 26, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/7089
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention provides a minimally-invasive surgery pedicle screw and rod assembly, inserter tool, and insertion method for use in spinal stabilization procedures and the like. The screw and rod assembly utilizes a screw head body that has a pair of tab extenders that extend longitudinally from the head body to a point well outside of the skin and musculature of the patient. A rod is coupled to and translated along these tab extenders, ultimately into proximity with the head body. The rod is inserted into, aligned with, and translated along the length of the tab extenders, and then selectively pivoted about an enlarged partial spherical bearing into a configuration that is substantially perpendicular to the tab extenders and the head body. The present invention also provides an inserter tool that is used to dispose the rod concentrically within the tab extenders, translate the rod along the length of the tab extenders, and then pivot the rod with respect to the tab extenders and the head body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.