Locking pedicle screw devices, methods, and systems
US8961569B2 · kind B2 · utility
9Cited by
14References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2010 |
| Grant date | Feb 24, 2015 |
| Priority date | — |
| Expiry date | Oct 11, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/037
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An embodiment of the invention provides for a pedicle screw system including a bone anchor, linkage rod, tulip, set screw, and detent plate. When the set screw is fully tightened against the detent plate, pluralities of ridges on opposing faces of the detent plate and set screw cooperate by providing catches to prevent unwanted loosening of the set screw, which could lead to unwanted rod slippage and instability in the orthopedic fixation unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.