The FDA approved the use of cypher -- a drug-coated stent.
Stents are tiny metal tubes inserted into arteries to keep them open once a clog has been removed.
But patients with traditional stents can suffer from re-clogging as scar tissue grows around the device.
The new stent is coated with a drug that prevents re-clogging. It's expected to cut the chance of a heart attack or need for additional treatment by 60 percent.