Distractable body augmenter capable of being planted through a pedicle for vertebral body reconstruction
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United States of America Patent
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Mar 10, 2009
Grant Date -
Apr 20, 2006
app pub date -
Oct 5, 2004
filing date -
Oct 5, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A distractable body augmenter is provided for reconstruction of a vertebra subjected to loss of bone mass or fracture, and is planted in the vertebra from a pedicle of the vertebra for helping maintain or restore normal position and size of the vertebra; through the pedicle, the augmenter, fitting the pedicle anatomy, was created to reconstruct the fractured or collapsed vertebral body; the augmenter includes a lower planted block, an upper planted block fitted to the lower block in a longitudinally displaceable manner, and a wedge-shaped bar, which is inserted between the upper and the lower blocks for changing the height of the augmenter after the upper and the lower blocks have been planted in a vertebra via a planting tunnel on a pedicle of the vertebra; the fractured body was reduced and maintained by the augmenter until the bone growth and fracture union.
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