IP Library Granted Patent US 8,591,394
Granted Patent B2
US 8,591,394 · App. 13/217,753 · Granted Nov 26, 2013

Heart assist devices, systems and methods

Inventors: William Suttle Peters (Auckland, NZ); Peter Crispin Lawrence Marsh (Birchgrove, AU); Geoffrey Hamilton White (East Balmain, AU); Rolf Gunnar Unger (Kingsgrove, AU); Frederick Paget Milsom (Auckland, NZ); Hans Hansforth Henrichsen (Shalvey, AU); Colin Edward Sullivan (Birchgrove, AU)
Assignee: Sunshine Heart Company Pty Ltd.
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Quick Facts
Patent No.
US 8,591,394
App. No.
13/217,753
Granted
Nov 26, 2013
Kind
B2
Abstract

An apparatus and method for use in assisting a human heart are disclosed. The apparatus comprises an aortic compression means which may be fully implanatable, a fluid reservoir and a pump means adapted to pump a fluid from the reservoir to the aortic compression means so as to actuate the aortic compression means at least partly in counterpulsation with the patient's heart. In addition, the device is adapted to be wholly positioned within the right chest cavity of the patient. The aortic compression means of the device may be curved along its length so as to substantially replicate the curve of the ascending aorta.

Claims (34)

1. A heart assist system comprising:

(a) an aortic compression device configured to be positioned adjacent to the ascending aorta of a patient, wherein the aortic compression device is curved along its length so as to substantially replicate the curve of the ascending aorta adjacent to the aortic compression device;

(b) a pump in fluid communication with the aortic compression device, wherein the pump is configured to pump a fluid to the aortic compression device so as to actuate the aortic compression device; and

(c) a power source operably coupled with the pump, the power source comprising a battery or a transcutaneous electronic transfer device.

2. The heart assist system of claim 1 , wherein the aortic compression device further comprises:

a) a flexible inflatable cuff; and

b) a flexible, substantially inelastic sheath configured to extend around the cuff and at least assist in retaining the cuff adjacent to the aorta.

3. The heart assist system of claim 2 , wherein the cuff is substantially C-shaped and further comprises two free ends extending from the cuff, wherein the two free ends are configured to overlap when the cuff is positioned adjacent to the aorta.

4. The heart assist system of claim 1 , further comprising a fluid reservoir in fluid communication with the pump, wherein the pump is configured to pump the fluid from the fluid reservoir to the aortic compression device.

5. The heart assist system of claim 4 , further comprising a fluid conduit in fluid communication with the fluid reservoir, the pump, and the aortic compression device.

6. The heart assist system of claim 1 , further comprising a fluid pressure adjustment component in fluid communication with the aortic compression device.

7. The heart assist system of claim 6 , wherein the fluid pressure adjustment component comprises a reservoir configured for the receiving or removal of fluid therein, thereby allowing for adjustment of fluid pressure in the system.

8. The heart assist system of claim 6 , further comprising a pressure sensor operably coupled to the fluid pressure adjustment component, wherein the pressure sensor is configured to measure fluid pressure in the fluid pressure adjustment component.

9. The heart assist system of claim 8 , wherein the pressure sensor is further configured to automatically adjust the fluid pressure in the fluid pressure adjustment component based on the fluid pressure in the component.

10. The heart assist system of claim 1 , further comprising a pressure compliance component.

11. A heart assist system comprising:

(a) an aortic compression device configured to compress the aorta of a patient, the device comprising an inflatable cuff comprising two free ends extending from the cuff, wherein the two free ends are configured to overlap when the cuff is positioned adjacent to the aorta;

(b) a pump in fluid communication with the aortic compression device, wherein the pump is configured to pump a fluid to the inflatable cuff so as to actuate the inflatable cuff; and

(c) a power source operably coupled with the pump, the power source comprising a battery or a transcutaneous electronic transfer device.

12. The heart assist system of claim 11 , wherein the aorta is the ascending aorta, and wherein the aortic compression device is curved along its length so as to substantially replicate the curve of the ascending aorta adjacent to the aortic compression device.

13. The heart assist system of claim 11 , further comprising a sheath configured to extend around the cuff and at least assist in retaining the cuff adjacent to the aorta.

14. The heart assist system of claim 11 , further comprising a fluid reservoir in fluid communication with the pump, wherein the pump is configured to pump the fluid from the fluid reservoir to the aortic compression device.

15. The heart assist system of claim 11 , further comprising a fluid pressure adjustment component in fluid communication with the aortic compression device.

16. A heart assist system comprising:

(a) an aortic compression device configured to be positioned adjacent to the ascending aorta of a patient, wherein the aortic compression device is curved along its length so as to substantially replicate the curve of the ascending aorta adjacent to the aortic compression device, the aortic compression device comprising:

(i) a flexible inflatable cuff; and

(ii) a flexible, substantially inelastic sheath configured to extend around the cuff and at least assist in retaining the cuff adjacent to the aorta;

(b) a fluid reservoir;

(c) a pump in fluid communication with the aortic compression device and the fluid reservoir, wherein the pump is configured to pump a fluid from the fluid reservoir to the aortic compression device so as to actuate the aortic compression device; and

(d) a power source operably coupled with the pump, the power source comprising a battery or a transcutaneous electronic transfer device.

17. The heart assist system of claim 16 , further comprising a fluid pressure adjustment component in fluid communication with the aortic compression device and the fluid reservoir, wherein the fluid pressure adjustment component comprises a reservoir configured for the receiving or removal of fluid therein, thereby allowing for adjustment of fluid pressure in the system.

18. The heart assist system of claim 17 , further comprising a pressure sensor operably coupled to the fluid pressure adjustment component, wherein the pressure sensor is configured to measure fluid pressure in the fluid pressure adjustment component.

19. The heart assist system of claim 18 , wherein the pressure sensor is further configured to automatically adjust the fluid pressure in the fluid pressure adjustment component based on the fluid pressure in the component.

20. The heart assist system of claim 16 , further comprising a pressure compliance component.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 30, 2021
From: SUNSHINE HEART COMPANY PTY. LTD.
To: CHF SOLUTIONS, INC.
Reel/Frame 057041/0212 →
CHANGE OF NAME Recorded Jul 30, 2021
From: CHF SOLUTIONS, INC.
To: NUWELLIS, INC.
Reel/Frame 057047/0100 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 6, 2012
From: PETERS, WILLIAM; MARSH, PETER; WHITE, GEOFFREY; UNGER, ROLF; MILSOM, FREDERICK; HENRICHSEN, HANS; SULLIVAN, COLIN
To: SUNSHINE HEART COMPANY PTY LTD
Reel/Frame 028728/0435 →
Priority Claims (1)
AU PQ0904 · Jun 10, 1999 · national
Continuity (4)
Continuation 12035247 · Feb 21, 2008
Continuation 10786699 · Feb 24, 2004
Continuation 09869923 · Oct 15, 2001
Related Publication 20120220816A1 · Aug 30, 2012