ANTI-RESTENOSIS DRUG COVERED AND ELUTING BALLOONS FOR VALVULOPLASTY OF AORTIC VALVE STENOSIS FOR THE PREVENTION OF RESTENOSIS
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United States of America Patent
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Issued Date -
Apr 28, 2011
app pub date -
Apr 14, 2008
filing date -
Apr 13, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Described herein are special balloons intended for use in valvuloplasty of stenosed aortic valves, with a potential use for valvuloplasty of other heart valves as well. A feature of these balloons is that the entire or part of their external surface is covered by a drug that is eluted at the valve tissues during the balloon brief contact with them at the time of dilatation. The drug acts against the process of restenosis, which almost uniformly occurs after some time. The shape of the balloon can be the classical cylindrical or an hour-glass shape that facilitates targeted delivery of the drug at the valve tissues.
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