In this medical procedure, a balloon pushes plaque against the walls of arteries to help clear them
[DOC] [TLE] Coronary Angioplasty and Stenting | University of Michigan, Ann Arbor [PAR] Coronary angioplasty is a medical procedure in which a balloon is used to open 
... the balloon in the blockage and push the plaque outward against the artery 
wall.