Guide catheter with backup support system
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United States of America Patent
Stats
-
Jul 22, 2003
Grant Date -
Jul 4, 2002
app pub date -
Jan 4, 2001
filing date -
Jan 4, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An intravascular catheter (e.g. guide or diagnostic catheter) that includes a specially designed distal tip to provide enhanced back-up support. The distal tip (e.g., distal 2 cm of the shaft) has a lateral extent or profile (e.g., wave shape) that is larger than the lumen of the coronary artery adjacent the ostium when the tip is in a relaxed state. The over-sized lateral extent causes the distal tip to frictionally engage the coronary artery and anchor within the ostium. The lateral extent or profile of the distal tip may be decreased by inserting a guide wire therethrough to facilitate insertion of the distal tip into the ostium. After the distal tip is inserted into the ostium, the guide wire may be removed to allow the lateral extent of the distal tip to increase and thereby anchor the distal tip in the ostium.
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