drug eluting stent (DES)

stents are small, expandable tubes that are inserted during angioplasty into a narrowed or blocked section of the coronary artery to open the artery and improve blood flow

drug-eluting stents prevent a coronary artery from narrowing again after angioplasty or angiogram. They are coated with medication that prevents your artery from clogging up again

 

(also see bare metal stent)