Polyaxial locking mechanism
US9867643B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2016 |
| Grant date | Jan 16, 2018 |
| Priority date | — |
| Expiry date | Dec 12, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/80
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A bone plate system comprises a bone plate including a first surface and a second surface, the bone plate including at least one threaded aperture, the threaded aperture being tapered between the first surface and the second surface. The bone plate system further comprises at least one fastener including an elongate shaft and a threaded head, the threaded head being tapered between a proximal end of the threaded head and a distal end of the threaded head, wherein a plurality of circumferentially spaced recesses are formed in the threaded head and define a plurality of threaded tabs. The at least one fastener is configured for insertion within the at least one threaded aperture at a plurality of different insertion angles while achieving a locking engagement between the threaded head and the threaded aperture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.