Interspinous process implants having deployable engagement arms
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United States of America Patent
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Mar 27, 2012
Grant Date -
Nov 26, 2009
app pub date -
Aug 7, 2009
filing date -
May 1, 2007
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Spinal implants include an elongated body portion dimensioned and configured for percutaneous introduction into a target interspinous process space, at which interspinous distraction and/or spinal fusion are desired. The body portion can include a threaded outer surface, or alternatively a smooth surface. The body portion can include one or more interior cavities, and can include deployable engagement members adapted and configured to move in tandem between a stowed position retracted within the interior cavity of the body portion and a deployed position extended from the interior cavity of the body for engaging adjacent spinous processes. An internal drive assembly for selectively moving the engagement members from the stowed position to the deployed position can be provided, as can a elements for locking the engagement members in a deployed position.
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