Reduction jack for spinal rod placement and method of use
US9381051B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 31, 2014 |
| Grant date | Jul 5, 2016 |
| Priority date | — |
| Expiry date | Nov 21, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/7032
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A reduction jack for placing a spinal rod within a rod channel of a bone fixation screw includes a mounting stem having a tubular body, a plurality of teeth disposed on the body, a pair of legs projecting from the body, and catches disposed on the legs for engaging the bone fixation screw. A reduction sleeve at least partially encircles the mounting stem. A gear assembly is mounted on the reduction sleeve and engages the teeth on the body such that manipulation of the gear assembly facilitates movement of the reduction sleeve along the mounting stem. A first pawl is pivotably mounted to the reduction sleeve and resiliently biased against the teeth on the body, the first pawl being pivotable between a first position where the first pawl engages the teeth on the body and a second position wherein the first pawl does not engage the teeth on the body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.