Expandable articulating intervertebral implant with limited articulation
US8147550B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 2005 |
| Grant date | Apr 3, 2012 |
| Priority date | — |
| Expiry date | Sep 18, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00023
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An articulating expandable intervertebral implant is described for insertion between vertebrae of a human spine. The articulating expandable intervertebral implant includes an upper body that engages a first vertebra, a lower body that engages a second vertebra, and an insert. The inferior surface of the upper body may include a concave portion. The superior surface of the insert may include a convex portion. The insert may be positioned between the superior surface of the lower body and the concave portion of the inferior surface of the upper body. In some embodiments, an expansion member may engage the insert to increase a height of the intervertebral implant and/or allow or increase articulation of the upper body with respect to the insert. The insert may include one or more features designed to limit articulation of the upper body with respect to the insert.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.