Endoluminal occlusion-irrigation catheter with aspiration capabilities and methods of use
AssigneeBoston Scientific Scimed, Inc.
InventorsYue-Teh Jang, Ross Tsugita, Bruce Addis, Tracy Maahs, Jean Chang
Life of this patent
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Abstract
A catheter system comprising a guidewire, an endovascular catheter, and an aspiration catheter. The guidewire has an expandable occluder mounted on a distal end. The guidewire and the endovascular catheter are insertable into a lumen of the aspiration catheter. The aspiration catheter also includes infusion and aspiration lumen(s) and port(s). Methods of using the catheter system for treating a vascular lesion and removing embolic material during the procedure are also disclosed.
Claims23
(canceled)
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;
- and
- an aspiration catheter having a proximal end, a distal end, a first lumen adapted to receive the angioplasty catheter, and a second lumen in fluid communication with a source of infusion fluid and at least one distal fluid infusion port.
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;
- and
- an aspiration catheter having a proximal end, a distal end, an aspiration lumen in fluid communication with at least one aspiration port, 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;
- wherein the infusion ports are adapted to create a venture effect wherein irrigation fluid ejected from the infusion ports is circulated circumferentially about the aspiration catheter.
The catheter assembly of claim IS, wherein the infusion ports are directed radially outward and angled relative to the radius of the aspiration catheter.
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;
- and
- an aspiration catheter having a proximal end, a distal end, an aspiration lumen in fluid communication with at least one aspiration port, 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;
- wherein one or more of said infusion ports includes an angled slot configured to direct fluid in a circular path radially and distally beyond the distal end of the aspiration catheter.
Dependencies are inferred from the claim text.