PERCUTANEOUS SPINAL STENOSIS TREATMENT
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United States of America Patent
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N/A
Issued Date -
May 1, 2008
app pub date -
Oct 10, 2007
filing date -
Oct 30, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method for percutaneously removing ligamentum flavum tissue in a spine to treat spinal stenosis may involve percutaneously advancing a distal portion of a tissue removal cannula into the ligamentum flavum tissue, uncovering a side-opening aperture disposed on the distal portion of the cannula to expose a tissue cutter disposed in the cannula, and cutting ligamentum flavum tissue using the tissue cutter while the aperture is uncovered. A device for percutaneously removing ligamentum flavum tissue in a spine to treat spinal stenosis may include a cannula including a side-facing aperture, an aperture cover slidably coupled with the cannula and configured to advance and retract to cover and uncover the aperture, and a tissue cutter slidably disposed within the cannula and configured to extend through the aperture to cut ligamentum flavum tissue.
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