Orthopedic plate having threaded holes for locking screws or pegs and non-threaded holes for a variable axis locking mechanism
US9687282B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2007 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Oct 10, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/8061
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An orthopedic plate system comprises a plurality of fasteners such as pegs or screws and a plate having two sets of holes for the fasteners. The first set of at least one hole includes internal threads that receive a fastener having a head which includes external threads that mate with the internal threads of the hole to lock the fastener at a fixed angle relative to the plate. The second set of at least one hole is devoid of internal threads and has a concavely rounded internal surface and which receives a convexly rounded external surface of a locking insert, which receives a variable axis fastener. The variable axis fastener causes the locking insert to expand to lock the variable axis fastener at a selected angle relative to the plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.