Distraction screw
US7708766B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2003 |
| Grant date | May 4, 2010 |
| Priority date | — |
| Expiry date | Aug 11, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/00004
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A simple, safe implantable bone screw, and a method for distracting two bone segments, is provided. In general, the bone screw includes a shank having a threaded proximal portion and a distal portion with a major diameter that is less than a minor diameter of the threaded proximal portion. A transitional region of decreasing diameter can be disposed between the threaded proximal portion and the distal portion, and a driver receiving element is preferably disposed on a proximal end of the bone screw. In use, the proximal and distal portions of the bone screw are adapted to engage two segments of bone, and to create a distraction force between the two segments of bone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.