Cardiovascular Systems, Inc. is a medical technology company. The Company is engaged in treating patients suffering from peripheral and coronary arterial diseases. It has developed an orbital atherectomy technology for peripheral and coronary commercial applications. Its peripheral arterial disease systems are catheter-based platforms that treat plaque types in leg arteries both above and below the knee. Its products include Stealth 360 degree Peripheral Orbital Atherectomy System (OAS); the Diamondback 360 Peripheral OAS (Diamondback 360 Peripheral), and Diamondback 360 Peripheral, Diamondback 360 60cm Peripheral OAS and Diamondback 360 4 French 1.25 Peripheral (collectively called as peripheral arterial disease systems (PAD systems)). Its coronary product, the Diamondback 360 Coronary OAS (CAD System), is a catheter-based platform designed to facilitate stent delivery in patients with coronary arterial disease (CAD). The CAD System design is customized for the coronary application.