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Method of and means for intraaortic assist

  • US 4,527,549 A
  • Filed: 09/30/1982
  • Issued: 07/09/1985
  • Est. Priority Date: 08/05/1982
  • Status: Expired due to Fees
First Claim
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1. A method of intraaortic assist which comprises introducing an inflatable member up through the descending aorta, thence about the aortic arch, and downwardly through the ascending aorta to a point immediately adjacent the aortic valve, said point being determined by monitoring the blood pressure within the aortic system, moving said inflatable member against the aortic valve until the latter is pressed open to cause a substantial drop in the ventricular pressure curve at the time of systole, and then withdrawing said inflatable member away from the valve and into the ascending aorta, thereby permitting closure of the aortic valve as indicated by return to a normal pressure curve, and rythmically inflating and deflating said inflatable member, after it is positioned adjacent the aortic valve, in synchronism with the normal beat of the heart.

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