Surgery – Cardiac augmentation – Aortic balloon pumping
Patent
1988-03-22
1990-02-20
Cohen, Lee S.
Surgery
Cardiac augmentation
Aortic balloon pumping
604101, 623 3, A61B 1900
Patent
active
049022733
ABSTRACT:
Improved heart assist devices are disclosed. An improved heart assist device includes a catheter having a first lumen and a second lumen. An inflatable intraventricular balloon is located at the distal end of the catheter. The interior of the intraventricular balloon communicates with the first lumen of the catheter. An inflatable intraaortic balloon is located between the proximal and distal ends of the catheter. The interior of the intraaortic balloon communicates with the second lumen of the catheter. The heart assist device also includes a pumping mechanism that inflates and deflates both the intraventricular balloon and the intraaortic balloon. The improved heart assist device is inserted into the heart so that the intraventricular balloon is positioned in the left ventricle and so that the intraaortic balloon is positioned in the aorta. The intraventricular balloon is inflated during left ventricular systole, and the intraaortic balloon is deflated during left ventricular systole. The intraventricular balloon is deflated at the end of left ventricular systole or at the onset of left ventricular diastole, and the intraaortic balloon is inflated during left ventricular diastole. The inflation and deflation steps are repeated.
REFERENCES:
patent: 2489067 (1949-11-01), Wild
patent: 3266487 (1966-08-01), Watkins et al.
patent: 3592183 (1971-01-01), Watkins et al.
patent: 3720199 (1973-03-01), Rishton et al.
patent: 4154227 (1979-05-01), Krause et al.
patent: 4256622 (1981-01-01), Hutchins, IV
patent: 4261339 (1981-04-01), Hanson et al.
patent: 4439186 (1984-03-01), Kuhl
patent: 4448190 (1984-05-01), Freeman
patent: 4453537 (1984-06-01), Spitzer
patent: 4531936 (1985-07-01), Gordon
Bregman et al., "Left Ventricular and Unidirectional Intraaortic Balloon Pumping," Journal of Thoracic and Cardiovascular Surgery, vol. 68, No. 5, 11-1974.
Dodge et al., "Usefulness and Limitations of Radiographic Methods for Determining Left Ventricular Volume," American Journal of Card., vol. 18, 7-1966.
Ross et al., "The Architecture of the Heart in Systole and Diastole," Circulation Research, vol. XXI, Oct. 1967.
Arvidsson, "Angiocardiographic Determination of Left Ventricular Volume," Acta Radiologica, vol. 56, Nov. 1961.
Donald et al., "Circulatory Support by a Left Ventricular Balloon Pump," Supplement I to Circulation, vols. XLIII and XLIV, May 1971.
Case Robert B.
Choy Daniel S. J.
Cohen Lee S.
Razzano Pasquale A.
Schaetzle Kennedy J.
LandOfFree
Heart assist device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Heart assist device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heart assist device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1613597