Craft projects to make using Balloon Pumps

The Intra-aortic balloon pump is a mechanical device that increases myocardial oxygen perfusion while at the same time increasing cardiac output. Increasing cardiac output increases coronary blood flow and therefore myocardial oxygen delivery. It consists of a cylindrical polyethylene balloon that sits in the aorta, approximately 2 centimeters from the left subclavian artery and counterpulsates... From Wikipedia