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Method for intraluminally inducing cardioplegic arrest and catheter for use therein

  • US 5,759,170 A
  • Filed: 03/13/1996
  • Issued: 06/02/1998
  • Est. Priority Date: 11/30/1993
  • Status: Expired due to Term
First Claim
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1. A catheter system for inducing cardioplegic arrest while circulation is supported by cardiopulmonary bypass, the system comprising:

  • an aortic catheter having a proximal end and a distal end, a first lumen, a second lumen, and a blood flow lumen each extending distally from the proximal end, a first occluding member coupled to the aortic catheter near the distal end and movable between a collapsed shape and an expanded shape, the first occluding member being configured to occlude a patient'"'"'s ascending aorta when in the expanded shape, a first outlet distal to the first occluding member coupled to the first lumen, a second outlet distal to the first occluding member coupled to the second lumen, and a blood outlet proximal to the first occluding member and coupled to the blood flow lumen, the aortic catheter having a length selected so that the occluding member is positionable in the ascending aorta with the proximal end extending to a peripheral artery;

    a source of cardioplegic agent coupled to the first lumen; and

    a bypass system having an inlet and an outlet, the outlet being coupled to the blood flow lumen for returning oxygenated blood to the patient.

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