Percutaneous in-situ coronary bypass method and apparatus
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United States of America Patent
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Sep 4, 2001
Grant Date -
N/A
app pub date -
Aug 10, 1998
filing date -
Oct 13, 1995
priority date (Note) -
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Abstract
Methods and devices for percutaneous, in situ coronary bypass wherein a tissue puncturing catheter is used to form blood flow paths between an artery and an adjacent vein such that arterial blood will flow through a segment of the adjacent vein, thereby bypassing a lesion in the artery. The tissue puncturing catheter comprises a flexible catheter having a tissue puncturing apparatus such as a sharp tipped member, an electro-surgical apparatus or a laser beam passable therefrom to create the desired blood flow paths between the artery and vein. Stents are provided for facilitating blood flow through the blood flow paths and the segment of the vein used as the bypass conduit. One such stent is specially constructed to carry arterial blood in one direction through the vein segment while allowing venous blood to continue to flow in the opposite direction through that venous segment.
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