In this medical procedure, a balloon pushes plaque against the walls of arteries to help clear them
[DOC] [TLE] Where Balloons Fail In Clearing Arteries, New Devices May Help ... [PAR] Mar 20, 1990 ... Where Balloons Fail In Clearing Arteries, New Devices May Help ... dozen new 
devices that are designed to clear heart arteries by cutting, drilling, ... that has 
been pushed back by the balloon or of flaps of tissue from the artery.