Methods for reducing distal embolization
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United States of America Patent
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Nov 25, 2003
Issued Date -
N/A
app pub date -
Nov 10, 1999
filing date -
Mar 6, 1997
priority date (Note) -
Expired
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Abstract
A method for reducing distal embolization during insertion of devices to treat plaque, thrombi and other intravascular occlusions. Using a guide catheter, a guidewire is delivered to a site proximal to the lesion. An aspiration catheter is then introduced over the guidewire, and the two are moved together in a distal to proximal direction across the occlusion. The aspiration catheter is then moved in a proximal to distal direction while continuously aspirating, which prevents embolization of any particles which may be created during the crossing of the guidewire.
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