Bolt and tool with anti-torque features
US8679117B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2011 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Dec 15, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/8875
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system for fixing a wire to a surface of an external fixator having a wire adapted to extend through bony structure fastened with respect to the surface. A bolt having a shaft which comprises a threaded section, a head section and at least one clamping element is provided wherein the bolt is adapted to extend through an opening in the external fixation element with a nut, and clamps the wire to the surface. A counter torque tool is used to provide a counter torque while fastening the wire with the bolt and the nut. The bolt comprises a counter torque opening and wherein the counter torque tool comprises a section which is adapted to engage into the counter torque opening of the bolt to apply the counter torque.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.