Catheter apparatus having an improved shape-memory alloy cuff and inflatable on-demand balloon for creating a bypass graft in-vivo
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United States of America Patent
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Apr 13, 2004
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N/A
app pub date -
Dec 24, 1999
filing date -
Jun 14, 1996
priority date (Note) -
Expired
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Abstract
The present invention provides a catheter apparatus, an improved 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 prepared shape-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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