Dynamic vertebral column plate system
US8814915B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2012 |
| Grant date | Aug 26, 2014 |
| Priority date | — |
| Expiry date | Aug 17, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/8875
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A vertebral column construct for stabilizing a segment of a vertebral column can include first and second plate segments, and a spring connected between adjacent plate segments. The spring can be adapted and configured to provide a predetermined preload between the first and second plate segments. Such a preload can advantageously enhance fusion across a bone graft. Alternatively, the spring can be adapted and configured to resist, by a predetermined degree, loading between the first and second plate segments. A cam can be provided on one of the first and second plate segments, wherein engagement between the cam and the cam surface prevents dynamic connection between the first and second plates. The cam can be adapted and configured to adjust a preload applied between segments, such as by adjusting tension in the spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.