Implantation procedure for blood pumps

Patent metadata

Field	Value
Publication number	US-9144669-B2
Application number	US-28003005-A
Country	US
Kind code	B2
Filing date	Nov 16, 2005
Priority date	Nov 16, 2005
Publication date	Sep 29, 2015
Grant date	Sep 29, 2015

Abstract

A surgical procedure including making an incision in the patient's body, inserting at least two sutures close to the junction of the pericardium on the upper right pulmonary vein and making an incision in the pericardium substantially parallel to the ascending portion of the aorta. An incision is made between the sutures on the upper right pulmonary vein, an inflow cannula is inserted into the vein and through the mitral-valve into the left ventricular chamber and the inflow cannula is secured to the upper right pulmonary vein. The procedure includes inserting a blood pump having an outflow graft into the patient's body and cutting the outflow graft to a desired length, attaching a clamp to the aorta and then attaching the outflow graft to the aorta. The clamp is removed and air is flushed or removed from the outflow graft and the blood pump. The blood pump is then connected to the inflow cannula.

First claim

The invention is claimed as follows:

1. A minimally invasive surgical method for long term implantation of a blood pump comprising:
(a) making an initial incision in a chest of a patient's body, wherein the patient's body further comprises a pericardium, an upper right pulmonary vein, a junction of the pericardium and the upper right pulmonary vein, an aorta, a mitral-valve, a left ventricular chamber of the patient's heart, and a left lung;
(b) inserting a plurality of sutures on the upper right pulmonary vein adjacent to the junction of the pericardium and the upper right pulmonary vein;
(c) making an incision in the pericardium substantially parallel to an ascending portion of the aorta;
(d) making an incision between said sutures on the upper right pulmonary vein;
(e) inserting an inflow cannula into the upper right pulmonary vein through the mitral-valve and into the left ventricular chamber;
(f) securing the inflow cannula to the upper right pulmonary vein;
(g) inserting a blood pump having an outflow graft in the patient's body;
(h) attaching the outflow graft to the aorta;
(i) connecting the blood pump to the inflow cannula, wherein the blood pump remains in the patient after the initial incision is closed and the blood pump assists in pumping blood through the patient's heart.

2. The surgical method of claim 1 , further comprising attaching a lung ventilator to the patient's left lung.

3. The surgical method of claim 1 , wherein the initial incision is made in the fourth intercostal space on the right side of the patient's body.

4. The surgical method of claim 3 , wherein making the initial incision in the patient's body in the fourth intercostal space includes performing a thoracotomy.

5. The surgical method of claim 1 , further comprising cutting the outflow graft to a desired length.

6. The surgical method of claim 1 , further comprising attaching a tangential clamp to the aorta prior to attaching the outflow graft to the aorta.

7. The surgical method of claim 6 , further comprising removing the tangential clamp after the outflow graft is attached to the aorta.

8. The surgical method of claim 1 , further comprising removing air from at least the outflow graft and the blood pump after the outflow graft is attached to the aorta.

9. The surgical method of claim 1 , wherein the length of at least the initial incision is less than or equal to three inches.

10. The surgical method of claim 1 , wherein making the incision between said sutures on the upper right pulmonary vein includes making a cross-wise incision.

11. The surgical method of claim 1 , wherein inserting the inflow cannula into the upper right pulmonary vein includes inserting a substantially rigid tube having a distal end and a proximal end, at least one bend and a curvature adjacent to the proximal end.

12. The surgical method of claim 1 , wherein a diameter of the inflow cannula is between 6 and 9 mm.

13. The surgical method of claim 1 , wherein the inflow cannula is made of at least one of the materials selected from the group consisting of: titanium and silicone.

14. The surgical method of claim 1 , wherein at least one end of the inflow cannula includes a removable balloon-tipped catheter.

15. The surgical method of claim 1 , further comprising directing at least one X-ray at the patient's body and viewing at least one picture on a display device based on said X-ray.

16. The surgical method of claim 1 , wherein securing the inflow cannula to the upper right pulmonary vein includes tightening said sutures.

17. The surgical method of claim 1 , wherein securing the inflow cannula to the upper right pulmonary vein includes attaching a clamp to the end of the inflow cannula positioned adjacent to the upper right pulmonary vein and securing the clamp to the upper right pulmonary vein.

18. The surgical method of claim 1 , wherein the outflow graft includes a cardiovascular graft.

19. The surgical method of claim 1 , wherein attaching the outflow graft to the aorta includes sewing the outflow graft to the aorta.

20. The surgical method of claim 1 , wherein attaching the outflow graft to the ascending aorta includes performing an end-to-side anastomosis.

21. A minimally invasive surgical method for implanting a blood pump comprising:
(a) accessing at least a patient's pericardium, upper right pulmonary vein, a junction of the pericardium and the upper right pulmonary vein, an aorta, a mitral-valve, a left ventricular chamber of the patient's heart, and a left lung through an initial incision in a patient's chest;
(b) inserting a plurality of sutures on the upper right pulmonary vein adjacent to the junction of the pericardium and the upper right pulmonary vein;
(c) making an incision in the pericardium substantially parallel to the ascending portion of the aorta;
(d) making an incision between said sutures on the upper right pulmonary vein;
(e) connecting a blood pump to a rigid inflow cannula, wherein said blood pump includes at least one end cap and assists blood flow through the heart;
(f) implanting the blood pump and inflow cannula into the patient's body and further inserting the rigid inflow cannula into the upper right pulmonary vein;
(g) securing the rigid inflow cannula to the upper right pulmonary vein, wherein the rigid inflow cannula and blood pump remains in the patient after the surgical method is completed;
(h) inserting and attaching an outflow graft to the aorta; and
(i) closing the initial incision, wherein at least the rigid inflow cannula and blood pump remains in the patient after the initial incision is closed.

22. The surgical method of claim 21 , further comprising attaching a lung ventilator to the patient's left lung.

23. The surgical method of claim 21 , wherein the initial incision is made on the right side of the patient's body.

24. The surgical method of claim 21 , wherein making the initial incision includes performing a thoracotomy.

25. The surgical method of claim 21 , wherein the inflow cannula is inserted into the upper right pulmonary vein, through the mitral-valve and into the left ventricular chamber.

26. The surgical method of claim 25 , wherein inserting the inflow cannula into the upper right pulmonary vein, through the mitral-valve and into the left ventricular chamber includes inserting a substantially rigid tube having a distal end and a proximal end, at least one bend and a curvature adjacent to the proximal end.

27. The surgical method of claim 21 , further comprising cutting the outflow graft to a desired length.

28. The surgical method of claim 21 , further comprising attaching a tangential clamp to the ascending aorta prior to attaching the outflow graft to the aorta.

29. The surgical method of claim 28 , further comprising removing the clamp after the outflow graft is attached to the aorta.

30. The surgical method of claim 21 , further comprising removing air from at least the outflow graft and the blood pump after the outflow graft is attached to the aorta.

31. The surgical method of claim 21 , wherein the length of at least the initial incision is less than or equal to three inches.

32. The surgical method of claim 21 , wherein at least one end of the inflow cannula includes a removable balloon-tipped catheter.

33. The sur

Assignees

• Wieselthaler Georg
• Heartware Inc

Inventors

• Wieselthaler Georg

Classifications

• A61M31/002 Primary

  Devices for releasing a drug at a continuous and controlled rate for a prolonged period of time (artificial gland structures or devices A61F2/022; intra-uterine contraceptive devices A61F6/14; tampons for introducing into the vagina A61F13/20, A61L15/00; suppositories or bougies for intra-vaginal or intra-uterine application A61K9/02; physical forms of medicinal preparations for sustained or differential drug release A61K9/20, A61K9/50) · CPC title

• A61M1/122

  Human Necessities · mapped topic

• A61B2017/00252

  for by-pass connections, i.e. connections from heart chamber to blood vessel or from blood vessel to blood vessel · CPC title

• A61M1/10

  Human Necessities · mapped topic

• A61M1/1008

  Human Necessities · mapped topic