The manual “tapping” of surgeons, intent on breaking through life-threatening occlusions, could soon be replaced by vibrating tip guidewires, says of VasoStar Inc. The company, a subsidiary of Frantz Medical Group in Mentor, is collaborating with Cleveland Clinic and Interplex Medical LLC of Milford, on the plaque-busting technology. The vibrating guidewires let cardiologists open up totally blocked arteries much faster than the current manual method.