An assembly of devices intended to mechanically disrupt/remove atheroma plaque from the walls of both coronary and peripheral arteries. It typically includes a mains electricity (AC-powered) energy-producing generator with monitoring functions, a remote control or foot-switch, a handpiece (to which the catheter connects) and a dedicated disposable catheter with a cutting or abrasive head that transmits the mechanical energy to the atheroma. The system may include an integrated irrigation/suction system includes/requires accessory devices for its function (e.g., saline/lubricant, pump, guidewire).