Apparatus for stabilizing vertebral bodies
US8287571B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2008 |
| Grant date | Oct 16, 2012 |
| Priority date | — |
| Expiry date | Jul 19, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/7025
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A dynamic stabilization apparatus comprises elongated members mounted within the proximal end of anchoring devices that are placed in adjacent vertebral bodies. A flexible element having elastic properties within the applicable range of loading, for example loads that the spine experiences, is disposed between the proximal ends of the elongated members. At least one additional flexible element is mounted about the proximal ends of the elongated members adjacent the central flexible element. A housing encapsulates the proximal ends of the members such that the flexible element and the additional flexible elements are contained therein. As compressive, tensile, angular, shear and rotational forces are applied to the elongated members the central flexible element and the additional flexible elements interact with the elongated members and the housing to allow for motion of the elongated members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.