Method of implanting a blood pump system

• US 8,679,177 B2
• Filed: 03/07/2012
• Issued: 03/25/2014
• Est. Priority Date: 12/30/2009
• Status: Active Grant

• Current Assignee: TC1 LLC (Abbott Laboratories)
• Original Assignee: Thoratec LLC
• Inventors: Bourque, Kevin
• Primary Examiner(s): Sweet, Thomas J
• Assistant Examiner(s): SCHALL, MATTHEW WAYNE
• Application Number:
  US13/414,041
• Publication Number:
  US 20120165931A1
• Time in Patent Office: 748 Days
• Field of Search: 623/3.1
• US Class Current: 623/3.1
• CPC Class Codes: A61M 2205/3538 using electrical conduction through the body of the patient
• CPC Class Codes: A61M 2209/088 on the body
• CPC Class Codes: A61M 60/148 in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart assist devices
• CPC Class Codes: A61M 60/178 drawing blood from a ventricle and returning the blood to the arterial system via a cannula external to the ventricle, e.g. left or right ventricular assist devices
• CPC Class Codes: A61M 60/232 Centrifugal pumps
• CPC Class Codes: A61M 60/405 the force acting on the blood contacting member being hydraulic or pneumatic
• CPC Class Codes: A61M 60/422 the force acting on the blood contacting member being electromagnetic, e.g. using canned motor pumps
• CPC Class Codes: A61M 60/863 Apex rings
• CPC Class Codes: A61M 60/88 Percutaneous cables

Abstract

A method of implanting a blood pump system in a patient requiring treatment includes creating an opening in an epicardium of a heart to access an interior chamber of the heart and implanting a blood pump such that an inlet port of a pump housing is in fluid communication with the interior chamber of the heart through the opening. The pump housing has a first external surface adjacent to the inlet port such that it is substantially adjacent to the epicardium of the heart when implanted. In some embodiments, a first external surface contacts the epicardium when implanted. The blood pump is then secured to the exterior wall of the heart. In some embodiments, the blood pump is secured using a mounting cuff.

Claims

1. A method of implanting a blood pump system in a patient requiring treatment, comprising:

creating an opening in an epicardium of a heart to access an interior chamber of the heart;

implanting a blood pump such that an inlet port of a pump housing is in fluid communication with the interior chamber of the heart through the opening and a first external surface adjacent to the inlet port is substantially adjacent to the epicardium of the heart, the blood pump being adapted to transfer blood from the inlet port to an outlet port;

fluidly connecting the outlet port to the circulatory system; and

securing a mounting cuff to the exterior wall of the heart, the mounting cuff is adapted to couple to a second external surface of the pump housing, the second external surface is located adjacent to the first external surface and at least partially defining an outside perimeter of the pump housing.

2. The method of claim 1, further comprising:

implanting an inlet cannula, the inlet cannula adapted to traverse the wall of the heart, and the inlet cannula including an interior channel that fluidly connects the interior chamber of the heart with the inlet port of the pump housing; and

coupling the pump housing to the inlet cannula.

3. The method of claim 1, wherein the mounting cuff is secured to the exterior wall of the heart while the first surface of the pump housing is positioned substantially adjacent to the epicardium of the heart.

4. The method of claim 1, wherein implanting the pump housing comprises advancing the inlet port through the opening until the pump housing contacts the epicardium of the heart.

5. The method of claim 1, further comprising securing the mounting cuff to the second external surface of the pump housing.

6. The method of claim 5, wherein the step of securing the mounting cuff to the second external surface of the pump housing is preformed prior to the step of securing the mounting cuff to the epicardium of the heart.

7. The method of claim 5, wherein the step of securing the mounting cuff to the epicardium of the heart is preformed prior to the step of securing the mounting cuff to the second external surface of the pump housing.

8. The method of claim 5, wherein securing the mounting cuff to the second external surface of the pump housing comprises securing the mounting cuff to the second external surface of the pump housing with sutures or staples.

9. The method of claim 1, wherein the second external surface of the pump housing is substantially cylindrical and is substantially perpendicular to the first external surface, the first external surface being substantially toroidal.

10. The method of claim 1, further comprising, prior to the implanting, removably attaching an inlet cannula defining the inlet port to the pump housing.

11. The method of claim 10, wherein the inlet port is blocked by a removable plug fit within the inlet port when the blood pump is implanted.

12. The method of claim 11, further comprising removing the removable plug from the inlet port.

13. The method of claim 1, wherein securing the mounting cuff to the exterior wall of the heart comprises securing the mounting cuff to the exterior wall of the heart with sutures.

14. The method of claim 1, wherein securing the mounting cuff to the exterior wall of the heart comprises securing the mounting cuff to the exterior wall of the heart with staples.

15. The method of claim 1, wherein the implanting comprises manipulating the mounting cuff to conform to the exterior wall of the heart.

16. A method of implanting a blood pump system in a patient requiring treatment, comprising:

creating an opening in an epicardium of a heart to access an interior chamber of the heart;

implanting a blood pump that includes a pump housing having a first external surface and an inlet port that extends from the first external surface prior to implantation of the blood pump such that the inlet port of the pump housing is inserted in the opening and the first external surface of the pump housing contacts the epicardium of the heart surrounding the opening; and

securing the blood pump to the heart with a mounting cuff while the first external surface of the pump housing is in contact with the epicardium of the heart surrounding the opening.

17. The method of claim 16, wherein the mounting cuff is secured to a second external surface of the pump housing, the second external surface being located adjacent to the first external surface and at least partially defining an outside perimeter of the pump housing.

18. The method of claim 17, wherein the second external surface of the pump housing is substantially cylindrical and is substantially perpendicular to the first external surface, the first external surface being substantially toroidal.

19. The method of claim 17, wherein the inlet port is blocked by a removable plug fit within the inlet port when the blood pump is implanted.

20. The method of claim 19, further comprising removing the removable plug from the inlet port.

21. The method of claim 17, wherein securing the blood pump to the heart with a mounting cuff comprises securing the mounting cuff to the epicardium with sutures or staples.

22. The method of claim 17, wherein securing the blood pump to the heart with a mounting cuff comprises securing the mounting cuff to the blood pump with sutures or staples.

23. The method of claim 17, further comprising manipulating the mounting cuff to conform to the exterior wall of the heart.

24. A method of implanting a blood pump system in a patient requiring treatment, comprising:

creating an opening in an epicardium of a heart to access an interior chamber of the heart;

implanting a blood pump such that an inlet port of a pump housing is inserted in the opening and a first external surface adjacent to the inlet port contacts the epicardium of the heart surrounding the opening; and

securing the blood pump to the heart with a mounting cuff while the first external surface of the pump housing is in contact with the epicardium of the heart surrounding the opening,

wherein the mounting cuff is secured to a second external surface of the pump housing, the second external surface being located adjacent to the first external surface and at least partially defining an outside perimeter of the pump housing.