Atherectomy catheters and occlusion crossing devices
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United States of America Patent
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Nov 22, 2016
Grant Date -
Jul 14, 2016
app pub date -
Mar 21, 2016
filing date -
Feb 6, 2014
priority date (Note) -
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Abstract
Atherectomy catheter devices having a C-shaped balloon opposite a cutting window out of which a rotating cutter may extend and a proximal annular balloon. The C-shaped first balloon may be used to drive the cutter against a vessel and to deploy the cutter by assisting in deflecting a nosecone (distal tip) to expose the distal-facing cutting edge of the cutter. The proximal annular balloon may be used to occlude blood flow. The device may pulled, pushed or rotated in a vessel with the balloons inflated or deflated.
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