any of various techniques for repairing or replacing damaged blood vessels using surgery, lasers, or tiny inflatable balloons at the end of a catheter that is inserted into the vessel
See angioplasty in American Heritage Dictionary 4
(ănˈjē-ə-plăsˌtē)
nounpl.an·gi·o·plas·ties
The surgical repair of a blood vessel, either by inserting a balloon-tipped catheter to unblock it, or by reconstructing or replacing part of the vessel.