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heart-lung machine |
Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson | 0.06 sec. |
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heart-lung machine, device that maintains the circulation of the blood and the oxygen content of the body when connected with the arteriovenous system; it is also called the pump oxygenator. The machine is used in open-heart surgery when it is necessary to effect a bypass of the circulatory system of the heart and lungs. The oxygenator repeatedly draws off the blood from the veins, reoxygenates it, and pumps it into the arterial system. The contractions of the heart are halted by running a potassium citrate solution through the coronary vessels. The surgeon is thus enabled to open the heart and make the necessary repairs while the heart is still and his view is not obstructed by blood. |
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| The study will include postcardiotomy patients who have been weaned from heart-lung machines and whose hearts require added support to maintain good blood flow. ABIOMED's devices encourage recovery and are easier to implant, utilizing cannulae inserted through a small incision, rather than more traumatic bridge-to-transplant devices that core the ventricles and require heart-lung machines for implantation. These include diverse instruments ranging from cancer treatment systems to heart-lung machines, nerve growth stimulators, and ventricular assist devices. |
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Heart-lung machines
