Multichannel cannula for kyphoplasty and method of use
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United States of America Patent
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Apr 11, 2017
Issued Date -
N/A
app pub date -
Oct 22, 2014
filing date -
Oct 22, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A method of using a multichannel cannula to perform kyphoplasty includes inserting a stabilizing wire into a vertebra damaged by a compression fracture and inserting, over the stabilizing wire, a cannula. The cannula includes a first channel having open proximal and distal ends, and is configured to receive the stabilizing wire, and a second channel having an inlet portal and an exit portal that are in fluid communication. The cannula further includes an expandable portion configured to expand away from the cannula from an outer wall of the second channel. The method also includes inflating the expandable portion to create a void in the bone and to restore the height of the vertebra, and then deflating the expandable portion. When the void has been created, bone cement is delivered through the second channel into the void via the exit portal to at least partially fill the void.
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