Locking screw for an intramedullary nail
US8888779B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2005 |
| Grant date | Nov 18, 2014 |
| Priority date | — |
| Expiry date | Apr 1, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/8655
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A locking screw for an intramedullary nail having at least one transverse hole. The locking screw has a central longitudinal axis and includes a screw shank, which is at least partially provided with an external thread, and a screw head. The diameter of the screw head is greater than the outer diameter of the external thread, and the screw head includes a passage extending generally parallel to the longitudinal axis of the screw and the external thread. The passage is configured to receive a longitudinal wedge element. As a result, any gap between the locking screw and the intramedullary nail is eliminated and the screw is wedged in position in the transverse hole of the intramedullary nail.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.