Spinal fixation system having locking and unlocking devices for use with a multi-planar, taper lock screw
US7988694B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2006 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | Apr 9, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/7011
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Provided is a novel spinal fixation system that includes a novel multi-planar taper lock screw for connecting a connecting rod to bone as well as a novel locking device and a novel unlocking device, each being configured to selectively partially lock or fully the novel screw of the system. The screw is capable of multi-directional articulation while the connecting rod position can remain stable and aligned as needed. After the screw had been articulated and properly positioned, it can be locked such that the screw and the connecting rod will remain in relative position to the bone. The screw is configured for easy insertion and connection as well as easy removal and disconnection from the connecting rod. A method of fixing bones or bone fragments using the novel system is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.