(US) Cardiovascular Systems, Inc. is a medical device company, which engages in the development and commercialization of solutions for treating vascular and coronary disease. It offers orbital atherectomy systems for both peripheral and coronary commercial applications. The firm's products are catheter-based platforms capable of treating a range of vessel sizes and plaque types. The company was founded in 1989 and is headquartered in St. Paul, MN.