Cardiovascular Systems, Inc., is a medical device company. The Company is engaged in developing and commercializing innovative solutions for treating peripheral and coronary vascular disease. The Company’s primary focus is helping physicians conquer even the most difficult disease states, including calcium, given the complications it presents for the millions who suffer from peripheral arterial disease (PAD) and coronary artery disease (CAD). The Company’s PAD products include Stealth 360� Peripheral Orbital Atherectomy System (OAS) (Stealth 360), Diamondback 360 Peripheral OAS (Diamondback 360 Peripheral) and Diamondback Predator 360� (the Predator 360). The Company’s CAD product includes Diamondback 360 Coronary OAS (CAD System).