Systems and devices for dynamic stabilization of the spine
US8206419B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2009 |
| Grant date | Jun 26, 2012 |
| Priority date | — |
| Expiry date | Dec 24, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/7031
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A dynamic stabilization device, system, and method for use with a spinal motion segment includes a first bone anchor assembly, a second bone anchor assembly, a first articulation element and a second articulation element. The first articulation element includes an end portion engageable with the first bone anchor assembly, a first articulation surface, and a resilient element therebetween. The first articulation surface is separably engageable with a second articulation surface associated with the second articulation element. The resilient element provides resilient resistance when the first and second bone anchor assemblies are moved toward one another and provides no resistance and is separable from the second bone anchor assembly when the first and second bone anchor assemblies are moved away from one another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.