Methods and devices for maintaining cardiopulmonary bypass and arresting a patient's heart

• US 6,974,434 B2
• Filed: 07/11/2002
• Issued: 12/13/2005
• Est. Priority Date: 01/24/1997
• Status: Expired due to Fees

• Current Assignee: Edwards Lifesciences LLC (Edwards Lifesciences Corporation)
• Original Assignee: Heartport, Inc. (Johnson & Johnson)
• Inventors: Roberts, Craig P., Toomasian, John M., Fan, Sylvia W.
• Primary Examiner(s): Bianco, Patricia
• Application Number:
  US10/193,627
• Publication Number:
  US 20020176797A1
• Time in Patent Office: 1,251 Days
• Field of Search: 604/4.01, 604/5.01, 604/6.06, 604/6.09, 604/6.1, 604/6.11, 604/6.12, 604/6.14, 604/6.16, 604/6.07, 604/500, 604506-509, 604/523, 604/532, 604/533, 604537- 38, 604/264, 604/27, 604/28, 604 30- 34, 604/35, 604 65- 67, 604/73, 604/96.01, 604/99.04, 604/131, 604/140, 604/149, 604/151, 128/DIG.3, 606191- 92, 606/194, 606/198, 435/283.1, 435/284.1, 4352865-2866, 422 44- 45
• US Class Current: 604/6.14
• CPC Class Codes: A61M 1/3613 Reperfusion, e.g. of the coronary vessels, e.g. retroperfusion
• CPC Class Codes: A61M 1/3667 with assisted venous return
• CPC Class Codes: A61M 2025/0004 having two or more concentrically arranged tubes for forming a concentric catheter system
• CPC Class Codes: A61M 2025/0031 characterized by lumina for withdrawing or delivering, i.e. used for extracorporeal circuit treatment
• CPC Class Codes: A61M 2202/047 cardioplegic
• CPC Class Codes: A61M 2205/12 with interchangeable cassettes forming partially or totally the fluid circuit
• CPC Class Codes: A61M 2210/125 Heart
• CPC Class Codes: A61M 25/0021 characterised by the form of the tubing A61M25/0054 takes precedence
• CPC Class Codes: A61M 25/0032 characterized by at least one unconventionally shaped lumen, e.g. polygons, ellipsoids, wedges or shapes comprising concave and convex parts
• CPC Class Codes: A61M 25/007 Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
• CPC Class Codes: Y10S 128/03 Heart-lung

Abstract

An endovascular system for arresting a patient'"'"'s heart and maintaining the patient on cardiopulmonary bypass. A venous cannula, venting catheter and an aortic occlusion device are all coupled together so that the blood drawn into each of these catheters may be fed to a pump. A manifold has valves which control flows through the venous cannula, venting catheter and aortic occlusion device. A blood storage element is also provided so that the amount of blood in the perfusion circuit may be varied if necessary. The blood storage element is preferably positioned in parallel with the pump so that the pump may be used to add and remove blood to and from the blood storage element.

Claims

1. An endovascular bypass system, comprising:

an aortic occlusion device having a lumen and an occluding member, the occluding member being sized and configured to occlude a patient'"'"'s ascending aorta;

a venous cannula having a lumen for withdrawing blood from the patient;

a manifold having first and second valves and first and second valve controls for controlling the first and second valves;

a vent line extending between the lumen of the aortic occlusion device to the manifold;

a venous line extending between the lumen of the venous cannula to the manifold; and

the first and second valves being positioned to regulate flows through the vent line and the venous line.

2. The endovascular bypass system of claim 1, further comprising:

an arterial cannula having a lumen for returning oxygenated blood to the patient;

an arterial line extending from the pump outlet to the lumen of the arterial cannula; and

a blood storage device having an inlet line and an outlet line, the inlet line being coupled to the arterial line.

3. The endovascular bypass system of claim 2, wherein:

the outlet line of the blood storage element is coupled to the manifold; and

the manifold having a third valve and a third valve controller for controlling the third valve, the third valve being positioned to regulate blood flow through the outlet line of the blood storage element.

4. The endovascular bypass system of claim 1, further comprising:

a pump having am inlet and an outlet, and

an exit line which receives blood passing through the first and second valves, the exit line being fluidly coupled to the pump inlet.

5. The endovascular bypass system of claim 1, further comprising:

a bridge line extending between the arterial line and the venous line.