A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
128/132
A61B 19/00 (2006.01)
Patent
CA 1257172
ABSTRACT The invention provides an intra-arterial cardiac support system which can fully support the left heart by pump- ing the entire stroke volume of the heart while maintaining a low systolic intraventricular pressure. The system can also support the right heart and support circulation even when the heart is atonic or fibrillating. According to the invention, a small balloon pump, provided with a valve on its downstream side is provided in a major artery immediately adjacent to the heart, such as in the ascending aorta between the aortic valve and the ostium of the innominate artery, or in the pulmonary trunk. This small balloon pump is cyclically inflated and deflated at a frequency much higher than that of the beating of the heart, whereby the ejected stroke volume of the ventricle is pumped away by several rapid cycles of balloon pumping.
517742
Abiomed Cardiovascular Inc.
Smart & Biggar
LandOfFree
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