Locking distractor with two-start distraction screw
US9179947B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 3, 2012 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Jan 25, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/681
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Various exemplary embodiments relate to a distractor system including one or more of the following: a distraction screw comprising a double threaded distal portion and a nonthreaded locking feature near a proximal end of the distraction screw; a crossbar; a first arm coupled to the crossbar; a second arm coupled to the crossbar and having an interior bore sized to receive at least a portion of the distraction screw; and a lock having a nonthreaded aperture sized to receive at least a portion of the distraction screw therethrough, wherein the lock is configurable in a first position and a second position, when configured in the first position the lock engages the locking feature to substantially inhibit axial movement of the distraction screw within the interior bore, and when configured in the second position the lock substantially permits axial movement of the distraction screw within the interior bore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.