Fracture fixation system including buttress pin and post washer
US8287543B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Apr 9, 2004 |
| Grant date | Oct 16, 2012 |
| Priority date | — |
| Expiry date | Sep 14, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/809
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A fracture fixation system, particularly for a fracture at the distal end of the radius, in which a buttress pin is secured to a stable bone fragment by a bone screw and washer, and distal ends of the buttress pin are bent out of the plane of the buttress pin to engage and support a distal bone fragment. The legs of the buttress pin are spaced apart more narrowly at a U-shaped bend of the buttress pin where the buttress pin can be engaged by a conventional washer and bone screw and more widely where the bent ends engage the distal bone fragment. The washer has tabs for counter bearing against the legs to prevent spinning of the washer when the bone screw is installed. The washer can also support a fixation element which can be engaged in the distal fragment to provide additional support therefor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.