Catheter apparatus and method using a shape-memory alloy cuff for creating a bypass graft in-vivo
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United States of America Patent
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Aug 25, 1998
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app pub date -
Aug 23, 1996
filing date -
Jun 14, 1996
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Abstract
The present invention provides a catheter apparatus, an introducer system, and a methodology for creating a bypass on-demand between an unobstructed blood vessel such as the aorta and an obstructed blood vessel such as an obstructed coronary artery in-vivo using a shaped memory alloy cuff and a graft segment in tandem as a shunt. The invention allows the placement and creation of single or multiple bypass grafts without use of a heart-lung machine and without need for stopping the heart of the patient during the coronary artery bypass surgery.
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