Pump and cannula systems inserted through the right side and/or left side of the heart provide protection against collapse of the heart chambers and veins and arteries and provide supplemental blood flow through same to enable beating heart bypass surgery on all vessels of the heart, including lateral...http://www.google.se/patents/US6532964?utm_source=gb-gplus-sharePatent US6532964 - Pulmonary and circulatory blood flow support devices and methods for heart surgery procedures
