Methods and devices for occluding a patient's ascending aorta

• US 6,056,723 A
• Filed: 05/22/1998
• Issued: 05/02/2000
• Est. Priority Date: 04/01/1997
• Status: Expired due to Term

• Current Assignee: Edwards Lifesciences LLC (Edwards Lifesciences Corporation)
• Original Assignee: Heartport, Inc. (Johnson & Johnson)
• Inventors: Donlon, Brian S.
• Primary Examiner(s): Coggins, Wynn Wood
• Assistant Examiner(s): Blyveis, Deborah
• Application Number:
  US09/083,765
• Time in Patent Office: 711 Days
• Field of Search: 604/96-102, 606/192, 606/194, 600/18
• US Class Current: 604/102.01
• CPC Class Codes: A61B 17/12022 Occluding by internal devices, e.g. balloons or releasable wires plugging an opening in the wall of an organ A61B17/0057; occluders for the cervical canal A61F6/146; vas deferens occluders A61F6/20
• CPC Class Codes: A61B 17/12109 in a blood vessel
• CPC Class Codes: A61B 17/12136 Balloons
• CPC Class Codes: A61M 2025/0002 with a pressure sensor at the distal end
• CPC Class Codes: A61M 2025/0031 characterized by lumina for withdrawing or delivering, i.e. used for extracorporeal circuit treatment
• CPC Class Codes: A61M 2025/0034 characterized by elements which are assembled, connected or fused, e.g. splittable tubes, outer sheaths creating lumina or separate cores making of catheters A61M25/0009
• CPC Class Codes: A61M 2025/1052 for temporarily occluding a vessel for isolating a sector
• CPC Class Codes: A61M 2210/127 Aorta
• CPC Class Codes: A61M 25/0009 Making of catheters or other medical or surgical tubes
• CPC Class Codes: A61M 25/0023 by the form of the lumen, e.g. cross-section, variable diameter
• 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 25/0043 characterised by structural features
• CPC Class Codes: A61M 25/005 with embedded materials for reinforcement, e.g. wires, coils, braids
• CPC Class Codes: A61M 25/1002 characterised by balloon shape A61M25/1006, A61M25/1009 take precedence

Abstract

An aortic occlusion catheter has a blood return lumen for returning oxygenated blood to a patient and an occluding member for occluding the patient'"'"'s ascending aorta. The blood return lumen has openings on both sides of the occluding member for infusing oxygenated blood on both sides of the occluding member.

Claims

1. A catheter system for occluding a patient'"'"'s ascending aorta and returning oxygenated blood to the patient from a bypass system, comprising:

a shaft having a blood flow lumen, the blood flow lumen being sized to provide full bypass support for a patient;

an occluding member mounted to the shaft, the occluding member having a collapsed shape and an expanded shape, the expanded shape being sized and configured to occlude a patient'"'"'s ascending aorta;

a venous cannula having a blood withdrawal lumen; and

a bypass system coupled to the blood withdrawal lumen for receiving blood from the patient, the bypass system also being coupled to the blood flow lumen for returning blood to the patient;

the shaft also having first and second openings in fluid communication with the blood flow lumen, the first opening being positioned proximal to the occluding member and the second opening being positioned distal to the occluding member.

2. The catheter system of claim 1, wherein:

the occluding member is attached to the shaft at a proximal portion and a distal portion, the occluding member also being attached to the shaft along a portion extending between the proximal and distal portions.

3. The catheter system of claim 1, wherein:

the shaft includes a reinforcing wire.

4. A catheter system for occluding a patient'"'"'s ascending aorta and returning oxygenated blood to the patient from a bypass system, comprising:

a shaft having a blood flow lumen, the blood flow lumen being sized to provide full bypass support for a patient; and

an occluding member mounted to the shaft, the occluding member having a collapsed shape and an expanded shape, the expanded shape being sized and configured to occlude a patient'"'"'s ascending aorta;

means for sensing a pressure on a side of the occluding member;

the shaft also having first and second openings in fluid communication with the blood flow lumen, the first opening being positioned proximal to the occluding member and the second opening being positioned distal to the occluding member.

5. The catheter system of claim 4, further comprising:

means for sensing a pressure on another side of the occluding member.