Catheter system and method for providing cardiopulmonary bypass pump support during heart surgery

• US 6,293,920 B1
• Filed: 10/07/1998
• Issued: 09/25/2001
• Est. Priority Date: 05/27/1994
• Status: Expired due to Term

• Current Assignee: Edwards Lifesciences LLC (Edwards Lifesciences Corporation)
• Original Assignee: Heartport, Inc. (Johnson & Johnson)
• Inventors: Coleman, Ronald L., Sweezer, William Penn, Jimison, James
• Primary Examiner(s): RUHL, DENNIS WILLIAM
• Application Number:
  US09/167,877
• Time in Patent Office: 1,084 Days
• Field of Search: 604/4.01, 604/5.01, 604/6.14, 604/506-510, 604/95, 604/96, 604/101, 604/102, 604/280, 600/16-18
• US Class Current: 604/6.14
• CPC Class Codes: A61M 1/3659 Cannulae pertaining to extracorporeal circulation
• CPC Class Codes: A61M 2025/0031 characterized by lumina for withdrawing or delivering, i.e. used for extracorporeal circuit treatment
• CPC Class Codes: A61M 2025/0036 with more than four lumina
• CPC Class Codes: A61M 2025/0037 characterized by lumina being arranged side-by-side
• CPC Class Codes: A61M 2025/0039 characterized by lumina being arranged coaxially
• CPC Class Codes: A61M 2025/004 characterized by lumina being arranged circumferentially
• CPC Class Codes: A61M 2025/1015 having two or more independently movable balloons where the distance between the balloons can be adjusted, e.g. two balloon catheters concentric to each other forming an adjustable multiple balloon catheter system
• CPC Class Codes: A61M 2025/1052 for temporarily occluding a vessel for isolating a sector
• CPC Class Codes: A61M 2210/125 Heart
• CPC Class Codes: A61M 25/0068 Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
• CPC Class Codes: A61M 25/007 Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
• CPC Class Codes: A61M 25/0082 Catheter tip comprising a tool
• CPC Class Codes: A61M 25/1011 Multiple balloon catheters
• CPC Class Codes: A61M 60/113 in other functional devices, e.g. dialysers or heart-lung machines
• CPC Class Codes: A61M 60/117 for assisting the heart, e.g. transcutaneous or external ventricular assist devices
• CPC Class Codes: A61M 60/279 Peristaltic pumps, e.g. roller pumps
• CPC Class Codes: A61M 60/295 Balloon pumps for circulatory assistance
• CPC Class Codes: A61M 60/497 for balloon pumps for circulatory assistance
• CPC Class Codes: A61M 60/833 Occluders for preventing backflow
• CPC Class Codes: A61M 60/857 Implantable blood tubes

Abstract

A catheter system and method for achieving total cardiopulmonary bypass during heart surgery. A venous perfusion catheter is inserted peripherally into a preselected vein where it is advanced and positioned at the atrio-caval junction. The venous perfusion catheter has first and second balloons which when inflated respectively occlude the inferior and superior vena cava thereby precluding blood flow into the right atrium. An arterial perfusion catheter is inserted peripherally into a preselected arterial vessel and advanced within the vessel and positioned in the ascending aorta cephalid of the junction of the coronary arteries with the aortic root. A second flexible arterial cannula is mounted in sliding relationship with the first flexible cannula and carries an inflatable balloon acjacent its distal end to provide for occlusion of the ascending aorta. A first flexible cannula has a first lumen and an arterial venting orifice communicating with the first lumen defining a single flow path for the passage of cardioplegia solution to arrest the heart or for the evacuation of blood from the aortic root. A third lumen extends axially through the first flexible arterial cannula and communicates with a multiplicity of openings in the distal tip of the cannula defining a flow path for suctioning blood from the left ventricle. The second flexible cannula of the arterial perfusion catheter has a first cavity extending axially therethrough that communicates with an opening at its distal tip to permit the passage of blood delivered by the cardiopulmonary bypass pump into arterial circulation.

Claims

1. A method of delivering oxygenated blood to a patient and occluding the patient'"'"'s ascending aorta, comprising the steps of:

providing a first arterial cannula and a second arterial cannula, the first arterial cannula having an expandable member movable between a collapsed position and an expanded position, the second arterial cannula having a first cavity and a second cavity, the second cavity being sized to receive the first arterial cannula;

introducing the second arterial cannula into a patient'"'"'s vascular system;

coupling the first cavity of the second arterial cannula to a bypass system to deliver oxygen rich blood to the patient;

infusing the oxygen rich blood into the patient through the first cavity;

advancing the first arterial cannula through the second cavity so that the expandable member is positioned in the patient'"'"'s ascending aorta; and

expanding the expandable member on the first arterial cannula to occlude the patient'"'"'s ascending aorta.

2. The method of claim 1, wherein:

the providing step is carried out with the first arterial cannula having a first lumen.

3. The method of claim 2, further comprising the steps of:

coupling the first lumen of the first arterial cannula to a source of cardioplegic solution; and

infusing cardioplegic solution into the patient'"'"'s ascending aorta.

4. The method of claim 1, wherein:

the introducing step is carried out with the second arterial cannula being introduced into a vessel selected from the group consisting of the femoral artery, ascending aorta, descending aorta and subclavian artery.

5. The method of claim 1, wherein:

the providing step is carried out with the first arterial cannula having a plurality of openings coupled to the first cavity;

the infusing step being carried out with the plurality of openings being in the descending aorta.