Stents are devices which are implanted during an angioplasty to treat coronary artery disease. These small tubes are used to prop open clogged arteries. Over the past 30 years or so, advancements to these devices have made them an even better tool in the treatment of heart disease.

Each year, about one million people in the U.S. are treated for blocked arteries in the heart that prevent blood from flowing the way it should, but there’s one device that can treat this condition…it’s called a stent.