Rapidly exchangeable coronary catheter

Details Rapidly exchangeable coronary catheter Rapidly exchangeable coronary catheter

A - Human Necessities

61

M

128/127.1

A61M 25/10 (2006.01) A61M 25/00 (2006.01) A61M 29/02 (2006.01)

Patent

CA 2008784

A rapidly exchangeable catheter for use in the coronary arteries includes an elongate, relatively stiff proximal segment that defines an inflation lumen, an intermediate, shorter segment formed from a more flexible plastic material and having guidewire and inflation lumens, and a third, distal segment having a guidewire lumen. The proximal segment provides good pushability, and the intermediate and distal segments are of a length of between about 35 to 45 cm such that they extend over the aortic arch when the catheter is advanced into the most distal portions of the coronary anatomy. With a guidewire in place, the intermediate and distal portions are fully supported to avoid buckling. The distal end of the proximal segment overlaps longitudinally with the proximal end of the intermediate segment such that, with a guidewire in place, the catheter has continuous column support from its proximal end to its distal end.

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