HEMODIALYSIS CATHETER WITH THROMBUS BLOCKER

• US 20120095416A1
• Filed: 10/13/2010
• Published: 04/19/2012
• Est. Priority Date: 10/13/2010
• Status: Active Grant

• Current Assignee: Cook Medical Incorporated (Cook Group Incorporated)
• Original Assignee: Cook Incorporated (Cook Group Incorporated)
• Inventors: Hardert, Michael W., Kurrus, Michael R.
• Granted Patent: US 9,987,461 B2
• Time in Patent Office: Days
• US Class Current: 604/266
• CPC Class Codes: A61M 1/3661 for haemodialysis
• CPC Class Codes: A61M 25/0026 Multi-lumen catheters with stationary elements catheter assemblies comprising a catheter in combination with a guide tube, sheath or sleeve A61M2025/0681; catheters comprising telescoping coaxial elements A61M2025/0175

Abstract

A hemodialysis catheter with a plurality of umbrella-like wire members covered with a film which works as a thrombus blocker and can easily and effectively remove the thrombus is disclosed. The hemodialysis catheter has a proximal lumen, the arterial lumen, and a distal lumen, the venous lumen. An elongate member is longitudinally put in either the proximal lumen or the distal lumen, or two elongate members in both lumens. A plurality of umbrella-like wire members are connected to the end of the elongate member. When the hemodialysis catheter is put in the vessel but not in use, the end of the lumen is capped off by the plurality of umbrella-like wire members covered with a film. When it is ready to use, the doctor can pull the elongate member which connects to the plurality of umbrella-like wire members out off the lumen inverting the plurality of umbrella-like wire members and clearing away any thrombus that has formed.

Claims

1. A hemodialysis catheter with thrombus blocker comprising:

a first lumen having a distal end;

a second lumen having a distal end and disposed adjacent to said first lumen;

at least one elongate member longitudinally and removably disposed in one of said first or second lumens; and

a plurality of umbrella-like wire members connected to the distal end of said elongate member, said umbrella-like wire members configured to inhibit or remove thrombus formation.

2. A hemodialysis catheter with thrombus blocker as claim 1, wherein the elongate member is longitudinally placed in said first lumen.

3. A hemodialysis catheter with thrombus blocker as claim 1, wherein the elongate member is longitudinally placed in said second lumen.

4. A hemodialysis catheter with thrombus blocker as claim 2, wherein said a plurality of umbrella-like wire members cover the distal end of said first lumen while said elongate member is locked into place.

5. A hemodialysis catheter with thrombus blocker as claim 3, wherein said a plurality of umbrella-like wire members cover the distal end of said second lumen while said elongate member is locked into place.

6. A hemodialysis catheter with thrombus blocker as claim 4, wherein said a plurality of umbrella-like wire members are invertable to permit the elongate member to be pulled out of said lumen.

7. A hemodialysis catheter with thrombus blocker as claim 5, wherein said a plurality of umbrella-like wire members invert while said elongate member is pulled out of said lumen.

8. A hemodialysis catheter with thrombus blocker as claim 6, wherein said elongate member is made of metal.

9. A hemodialysis catheter with thrombus blocker as claim 7, wherein said elongate member is made of metal.

10. A hemodialysis catheter with thrombus blocker as claim 8, wherein said plurality of umbrella-like wire members comprise nitinol.

11. A hemodialysis catheter with thrombus blocker as claim 9, wherein said plurality of umbrella-like wire members comprise nitinol.

12. A hemodialysis catheter with thrombus blocker as claim 10, wherein said plurality of umbrella-like wire members are bonded on the distal end of said elongate member.

13. A hemodialysis catheter with thrombus blocker as claim 11, wherein said plurality of umbrella-like wire members are bonded on the distal end of said elongate member.

14. A hemodialysis catheter with thrombus blocker as claim 12, wherein said plurality of umbrella-like wire members are welded on the distal end of said elongate member.

15. A hemodialysis catheter with thrombus blocker as claim 13, wherein said plurality of umbrella-like wire members are welded on the distal end of said elongate member.

16. A hemodialysis catheter with thrombus blocker as claim 14, wherein a film is mounted on said plurality of umbrella-like wire members.

17. A hemodialysis catheter with thrombus blocker as claim 15, wherein a film is mounted on said plurality of umbrella-like wire members.

18. A hemodialysis catheter with thrombus blocker as claim 16, wherein said film is made over molding.

19. A hemodialysis catheter with thrombus blocker as claim 17, wherein said film is made over molding.

20. A hemodialysis catheter with thrombus blocker as claim 18, wherein said film is attached by means of suture.

21. A hemodialysis catheter with thrombus blocker as claim 19, wherein said film is attached by means of suture.

22. A hemodialysis catheter with thrombus blocker as claim 20, wherein said film is elastic.

23. A hemodialysis catheter with thrombus blocker as claim 21, wherein said film is elastic.

24. A hemodialysis catheter with thrombus blocker as claim 22, wherein said film is inelastic.

25. A hemodialysis catheter with thrombus blocker as claim 23, wherein said film is inelastic.