heart-lung machine

noun

1. a device through which blood is shunted temporarily for oxygenation during surgery, while the heart or a lung is being repaired.

noun

1. a machine used to maintain the circulation and oxygenation of the blood during heart surgery

n.

1. An apparatus through which the blood is temporarily diverted, especially during heart surgery, to oxygenate it and pump it throughout the body.

1. An apparatus through which blood is temporarily diverted, especially during heart surgery, in order to oxygenate and pump it, thus maintaining circulation.