Endoluminal occlusion-irrigation catheter with aspiration capabilities and methods of use

• US 20060041304A1
• Filed: 09/06/2005
• Published: 02/23/2006
• Est. Priority Date: 12/22/1999
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: Tsugita, Ross S., Maahs, Tracy D., Jang, Yue-Teh, Chang, Jean C., Addis, Bruce S.
• Granted Patent: US 7,731,683 B2
• Time in Patent Office: Days
• US Class Current: 623/1.110
• CPC Class Codes: A61B 17/22 Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for dilators A61M29/00
• CPC Class Codes: A61B 2017/22067 Blocking; Occlusion A61B2017/22054 takes precedence
• CPC Class Codes: A61B 2217/005 with suction drainage system
• CPC Class Codes: A61B 2217/007 with irrigation system
• CPC Class Codes: A61M 2206/16 Rotating swirling helical flow, e.g. by tangential inflows
• CPC Class Codes: A61M 25/007 Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
• CPC Class Codes: A61M 25/1011 Multiple balloon catheters

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.

Claims

1. (canceled)

5. The catheter assembly of claim 1, wherein said at least one distal fluid infusion port includes a single infusion port.

6. The catheter assembly of claim 1, wherein said at least one distal fluid infusion port includes a plurality of infusion ports.

7. The catheter assembly of claim 6, wherein the infusion ports are disposed radially about the distal end of the aspiration catheter.

8. The catheter assembly of claim 6, wherein the infusion ports are directed radially outward and angled relative to the radius of the aspiration catheter.

9. The catheter assembly of claim 6, wherein the infusion ports are configured to direct fluid in a circular path radially and distally beyond the distal end of the aspiration catheter.

10. The catheter assembly of claim 6, wherein the infusion ports are angled slots formed within the aspiration catheter.

11. The catheter assembly of claim 6, 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.

12. The catheter assembly of claim 1, wherein said source of infusion fluid includes a radiopaque contrast agent.

13. The catheter assembly of claim 1, wherein the aspiration catheter includes an aspiration lumen in fluid communication with at least one aspiration port.

14. The catheter assembly of claim 1, further comprising a stent deployment catheter insertable through the first lumen of the aspiration catheter.

2. 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.

3. The catheter assembly of claim 2, wherein the expandable occlusive member is a balloon.

4. The catheter assembly of claim 3, wherein the guidewire further includes an inflation lumen in fluid communication with the balloon.

15. 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.

16. The catheter assembly of claim 15, wherein the expandable occlusive member is a balloon.

17. The catheter assembly of claim 16, wherein the guidewire further includes an inflation lumen in fluid communication with the balloon.

18. The catheter assembly of claim 15, wherein the infusion ports are angled slots formed within the aspiration catheter.

20. The catheter assembly of claim 15, wherein said source of infusion fluid includes a radiopaque contrast agent.

21. The catheter assembly of claim 15, wherein the aspiration lumen is adapted to receive the angioplasty catheter therein.

22. The catheter assembly of claim 15, farther comprising a stent deployment catheter insertable through the aspiration lumen of the aspiration catheter.

19. The catheter assembly of claim IS, wherein the infusion ports are directed radially outward and angled relative to the radius of the aspiration catheter.

23. 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.