Appliance for cannulation of a blood vessel

• US 8,419,671 B2
• Filed: 04/01/2009
• Issued: 04/16/2013
• Est. Priority Date: 12/23/2002
• Status: Expired due to Term

• Current Assignee: Novalung GmbH (Fresenius SE & Co. KGaA)
• Original Assignee: Novalung GmbH (Fresenius SE & Co. KGaA)
• Inventors: Matheis, Georg, Frerichs, Heiko, Sandmann, Axel, Klietsch, Dietmar
• Primary Examiner(s): DEAK, LESLIE R
• Application Number:
  US12/416,847
• Publication Number:
  US 20090187133A1
• Time in Patent Office: 1,476 Days
• Field of Search: 604/4.01, 604/6.1, 604/6.14, 604/96.01, 604/103.07
• US Class Current: 604/4.01
• CPC Class Codes: A61M 1/3653 Interfaces between patient blood circulation and extra-corporal blood circuit
• CPC Class Codes: A61M 1/3659 Cannulae pertaining to extracorporeal circulation
• CPC Class Codes: A61M 1/3666 Cardiac or cardiopulmonary bypass, e.g. heart-lung machines
• CPC Class Codes: A61M 2025/1095 with perfusion means for enabling blood circulation while the balloon is in an inflated state or in a deflated state, e.g. permanent by-pass within catheter shaft

Abstract

The present invention relates to an appliance for cannulation of a blood vessel with a cannula which, after introduction into the vessel, is in fluidic communication with the vessel. At least one means is also provided to permit a controlled division of the blood into a first subsidiary stream which leaves the vessel through the cannula, and a second subsidiary stream which continues to flow through the vessel.

Claims

1. A method for establishing an extracorporeal circuit, comprising the steps of:

a) canulating a blood vessel, with an apparatus comprising a cannula having a blood-guiding lumen, which after introduction into said vessel, said lumen is in fluid communication with said vessel, and at least one balloon surrounding said cannula;

b) dividing in a controlled manner the blood flowing within said vessel into a first subsidiary stream which leaves said vessel through said lumen of said cannula, and a second subsidiary stream which is guided via said at least one balloon past said cannula through said vessel, wherein said balloon has a surface with at least one groove-like depression facing toward said lumen and a second surface with optionally at least one groove-like depression facing toward said vessel, and;

c) guiding said first subsidiary blood stream through a lung assist device and then back into another blood vessel.

2. The method of claim 1, wherein the balloon is dilatable.

3. The method of claim 1, wherein the balloon is not dilatable.

4. The method of claim 1, further comprising means for measuring at least one of said subsidiary streams.

5. The method of claim 4, further comprising means for regulating said subsidiary streams.

6. The method of claim 1, further comprising means for regulating said subsidiary streams.

7. The method of claim 1, wherein said cannula has an external diameter of ca. 5 to 30 French.

8. The method of claim 1, wherein the cannula is coated with a biocompatible material.

9. The method of claim 1, wherein said blood vessel is the femoral artery.

10. A method for establishing an extracorporeal circuit, comprising the steps of:

a) cannulating a blood vessel, with an apparatus having a cannula consisting of a single blood-guiding lumen, which after introduction into said vessel, said lumen is in fluid communication with said vessel, and at least one balloon surrounding said cannula;

b) dividing in a controlled manner blood flowing within said vessel into a first subsidiary stream which leaves said vessel through said lumen of said cannula, and a second subsidiary stream which is guided via said at least one balloon past said cannula through said vessel, and;

c) guiding said first subsidiary blood stream through a lung assist device and then back into another blood vessel.

11. The method of claim 10, wherein said balloon has a surface with at least one groove-like depression.

12. The method of claim 11, wherein said surface with said at least one groove-like depression faces towards said vessel and/or said cannula.

13. The method of claim 12, wherein said balloon is dilatable.

14. The method of claim 12, wherein said balloon is not dilatable.

15. The method of claim 10, wherein said balloon surrounds said cannula in sections in such a way that at least two ends of said balloon pointing in a circumferential direction are located at a circumferential distance from one another.

16. The method of claim 15, wherein two balloons surround said cannula in sections.

17. The method of claim 11, wherein said balloon is dilatable.

18. The method of claim 11, wherein said balloon is not dilatable.

19. The method of claim 10, wherein said blood vessel is the femoral artery.

20. A method for establishing an extracorporeal circuit, comprising the steps of:

a) cannulating a blood vessel, with an apparatus having a cannula consisting of a single blood-guiding lumen, which after introduction into said vessel, said lumen is in fluid communication with said vessel, and at least one balloon surrounding said cannula;

b) dividing in a controlled manner blood flowing within said vessel into a first subsidiary stream which leaves said vessel through said lumen of said cannula, and a second subsidiary stream which is guided via said at least one balloon past said cannula through said vessel, and;

c) guiding said first subsidiary blood stream through a lung assist device and then back into another blood vessel,

wherein said apparatus further consists of a means for measuring at least one of said subsidiary streams, a means for regulating at least one of said subsidiary streams, or combinations thereof.

21. The method of claim 20, wherein said apparatus further consists of a means for measuring at least one of said subsidiary streams and a means for regulating at least one of said subsidiary streams.

22. The method of claim 20, wherein said blood vessel is the femoral artery.

23. A method for establishing an extracorporeal circuit, comprising the steps of:

a) cannulating a blood vessel, with an apparatus comprising a cannula consisting of a single blood-guiding lumen, which after introduction into said vessel, said lumen is in fluid communication with said vessel, and at least two balloons surrounding said cannula;

b) dividing in a controlled manner blood flowing within said vessel into a first subsidiary stream which leaves said vessel through said lumen of said cannula, and a second subsidiary stream which is guided via said balloons past said cannula through said vessel, wherein said balloons surround said cannula in sections in such a way that at least two ends of said balloons pointing in a circumferential direction are located at a circumferential distance from one another and;

c) guiding said first subsidiary blood stream through a lung assist device and then back into another blood vessel.

24. The method of claim 23, wherein said balloon is dilatable.

25. The method of claim 23, wherein said balloon is not dilatable.

26. The method of claim 23, further comprising means for measuring at least one of said subsidiary streams.

27. The method of claim 26, further comprising means for regulating said subsidiary streams.

28. The method of claim 23, further comprising means for regulating said subsidiary stream.

29. The method of claim 23, wherein said cannula has an external diameter of ca. 5 to 30 French.

30. The method of claim 23, wherein said cannula is coated with a biocompatible material.

31. The method of claim 23, wherein said blood vessel is the femoral artery.