Side-biased orthopedic fastener retention
US9265546B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 13, 2013 |
| Grant date | Feb 23, 2016 |
| Priority date | — |
| Expiry date | Oct 10, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00179
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods and devices are disclosed for treating the vertebral column. An integrated fixation plate and spacer having a retaining structure within the screw holes of the fixation plate to resist backout of screws attaching the fixation plate to the bone is provided. A movable joint may be provided between the fixation plate and spacer. In some embodiments, a screw hole insert is also provided to resist shear forces acting between the screw and fixation plate. In some embodiments, an integrated fixation plate and spacer system is provided, comprising two or more integrated fixation plate and spacer implants, wherein the fixation plates of each implant has a complementary configuration to allow attachment of the implants at adjacent intervertebral spaces. Alternative fixation systems are also contemplated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.