Spinal fixation system and related methods
US7473269B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 19, 2005 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | Jul 11, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/7071
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Pedicle screws are secured in two columns, one along each side of the spine. Cross support rods have ends connected to pedicle screw heads. A longitudinally extending rod is supported on the cross supports and recessed in the cavity created by removal of portions of spinous processes, providing a reduced profile of the installed construct. Several types of cross supports are shown such as: arms from the screws inward to rings or yokes connecting the longitudinal rod; cross rods with ends connected to the screws and having centrally-located yokes for the longitudinal rod; cross rods with articulating longitudinal rod portions fixed or swiveled to them. These cross rods may have end portions angled posterior toward anterior to accommodate lateral positioned pedicle screws, but shorter cross rods without angled end portions enable medialized pedicle screw orientation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.