Spinal distraction system
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United States of America Patent
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Issued Date -
Oct 16, 2008
app pub date -
Apr 10, 2008
filing date -
Apr 10, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A spinal distraction apparatus includes substantially parallel fixed and movable legs, each of which has opposite front and rear ends. A rear rod projects rigidly from the rear end of the fixed leg and passes slidably through the rear end of the movable leg. A front rod extends rigidly from the fixed leg and is parallel to the rear rod. The front rod is formed with an array of external threads and nuts are threadedly engaged on the external threads for engaging opposite sides of the movable leg at locations adjacent the front rod. Thus, the position of the movable leg relative to the fixed leg can be controlled by adjusting the positions of the nuts. Front ends of the fixed and movable legs have attachments mounted thereto for engaging pedicle screws or other structures used in spinal distraction surgery.
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