List some of the cardiovascular devices and procedures that Michael DeBakey invented and/or prevented?

DeBakey's surgical innovations included coronary bypass operations, carotid endarterectomy, artificial hearts and ventricular assist devices.

Explanation:

I put this on the online content part of edg and got a 100.

The roller pump, and the method of correcting aortic aneurysms.

Explanation:

In 1932 DeBakey devised the "roller pump," an essential component of the heart-lung machine that permitted open-heart surgery. He also developed an efficient method of correcting aortic aneurysms by grafting frozen blood vessels to replace diseased vessels.