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Physiologically compatible cardiac assist device and method

  • US 20030176760A1
  • Filed: 02/10/2003
  • Published: 09/18/2003
  • Est. Priority Date: 02/11/2002
  • Status: Abandoned Application
First Claim
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1. A physiologically compatible cardiac assist device for cardiac assistance and use during coronary artery bypass surgery on a patient with or without cardiopulmonary bypass, said device comprising:

  • a first catheter for insertion into the left or the right atrium directly or via the great veins, or into the left ventricle of the patient;

    a second catheter for insertion into the aorta via the femoral or brachial artery of the patient, said catheter also capable of carrying an intra-aortic balloon for diastolic counter-pulsation;

    a pump for drawing blood through said first catheter and for delivering blood through said second catheter to the aorta, said pump capable of inflating a pneumatically driven intra-aortic balloon;

    a control system for monitoring the performance of the patient'"'"'s heart and for controlling operation of said pump to deliver blood and drive the intra-aortic balloon through said second catheter during only the diastolic phase of the cardiac cycle.

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