- 专利标题： PERCUTANEOUS SPINAL STENOSIS TREATMENT
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申请号： US11870370申请日： 2007-10-10
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公开(公告)号： US20080103504A1公开(公告)日： 2008-05-01
- 发明人: Gregory SCHMITZ , Jeffery Bleich , Eric Miller , Scott Smith
- 申请人： Gregory SCHMITZ , Jeffery Bleich , Eric Miller , Scott Smith
- 主分类号： A61B17/32
- IPC分类号： A61B17/32 ; A61B18/14 ; A61N1/36
摘要：
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.