Patent ID: 7731683

Claim:
An endoluminal aspiration catheter assembly, comprising: a guidewire having a proximal end, a distal end, and an expandable occlusive member disposed on the distal end; an angioplasty catheter having a proximal end, a distal end, a lumen adapted to receive the guidewire, and an expandable dilatation member disposed on the distal end of the angioplasty catheter; an aspiration catheter having a proximal end, a distal end, first lumen in fluid communication with a source of suction, and an infusion lumen in fluid communication with a source of infusion fluid and a plurality of fluid infusion ports disposed radially about the distal end of the aspiration catheter, the plurality of fluid infusion ports in fluid communication with the infusion lumen, wherein the first lumen has a proximal end and a distal end and the distal end of the first lumen is proximate the plurality of fluid infusion ports; and wherein the infusion ports are adapted to create a venturi effect wherein irrigation fluid ejected from the infusion ports is circulated circumferentially about the aspiration catheter.