Screw driver for a multiaxial bone screw
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United States of America Patent
Stats
-
Mar 12, 2013
Grant Date -
Dec 22, 2011
app pub date -
May 31, 2011
filing date -
Jun 18, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A screwdriver for driving a multi-axial its distal end for engaging the head of the bone screw for joint rotational movement. The screw driver includes an outer retention sleeve within which the inner shaft rotates freely. The outer retention sleeve releasably attaches to the yoke of the bone screw. In another configuration, the screwdriver comprises a screw engagement member affixed to the shaft for joint rotational movement therewith, the screw engagement member comprising a stop sized to seat within a slot of the bone screw yoke, the stop being configured to rotate the yoke upon rotation shaft. A releasable retention member is provided on the screw engagement member for releasably attaching the screwdriver to the bone screw.
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