Direct access atherectomy devices and methods of use
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United States of America Patent
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Jun 26, 2012
Grant Date -
Jan 17, 2008
app pub date -
Jul 11, 2007
filing date -
Jan 14, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
An atherectomy device containing cannula systems having lumens adapted for insertion of a blood filter and an atherectomy catheter useful for performing atherectomy directly on a patient's cardiovascular tissue. Other embodiments include a lumen for arterial perfusion useful in providing oxygenated blood to the aorta during cardiopulmonary bypass. The distal end of the atherectomy catheter includes an assembly with a pincer, a loop with or without a mesh, laser, hydraulics, or other suitable mechanism adapted for removing atheroma from a cardiac or vascular tissue. Methods of using the systems for vascular atherectomy are also disclosed herein.
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