Prostheses, systems and methods for replacement of natural facet joints with artificial facet joint surfaces
US7691145B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2004 |
| Grant date | Apr 6, 2010 |
| Priority date | — |
| Expiry date | Aug 5, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00976
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Cephalad and caudal vertebral facet joint prostheses and methods of use are provided. A pair of fixation elements are adapted to be secured within a vertebra in an orientation that best assures a secure and durable attachment to cortical and/or cancellous bone. Artificial facet joint surfaces are mounted on the fixation elements, either directly or with the aid of a support. The artificial facet joint structure may be carried by an arm. The artificial facet joint structure is adapted for articulation with a complementary natural or artificial facet joint structure. Bilateral prostheses may by coupled by a brace to further secure and stabilize the prostheses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.