Orthopedic rod system
US8162989B2 · kind B2 · utility
89Cited by
29References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 27, 2003 |
| Grant date | Apr 24, 2012 |
| Priority date | — |
| Expiry date | Dec 16, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/7002
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A tulip-shaped rod-receiving member in a spinal rod system is provided with a transverse slot accessible from the top of the tulip member for placing the rod therein until the rod seats. A locking assembly includes a cap having inclined surfaces that cooperate with inclined surfaces on the rod-receiving member to lock and bias inwardly the rod-receiving member relative to the cap. A novel seating ring is provided for the bone screw to be supported in the tulip in a manner that maximizes support and optimizes axial alignment of forces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.