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

  • US 5,957,879 A
  • Filed: 01/24/1997
  • Issued: 09/28/1999
  • Est. Priority Date: 01/24/1997
  • Status: Expired due to Term
First Claim
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1. A method of arresting a patient'"'"'s heart and withdrawing blood from the patient for pumping to a cardiopulmonary bypass system, comprising the steps of:

  • providing an aortic occlusion device, a venous cannula, and a pump, the aortic occlusion device having an occluding member, a first branch and a second branch;

    coupling the first branch to a source of cardioplegic fluid;

    coupling the second branch to the pump so that blood flowing through the second branch passes through the pump;

    coupling the venous cannula to the pump so that blood flowing through the venous cannula passes through the pump;

    positioning the occluding member in the ascending aorta of a patient;

    delivering cardioplegic fluid from the source of cardioplegic fluid and through the first branch thereby arresting the patient'"'"'s heart;

    expanding the occluding member to occlude the patient'"'"'s ascending aorta;

    inserting the venous cannula into a vein of the patient; and

    withdrawing blood from the patient through the venous cannula using the pump.

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