Patent 8465456 was granted and assigned to Boston Scientific on June, 2013 by the United States Patent and Trademark Office.
An intravascular aspirating assembly comprising an elongate guidewire having a proximally facing filter disposed on a distal portion thereof, a single operator exchange aspiration catheter disposed on the guidewire, the aspiration catheter having a proximal end, a distal end and an aspiration lumen extending therebetween, an extension catheter slidably disposed in the aspiration lumen and having a length greater than that of the aspiration catheter.