Cardiovascular Systems, Inc. (CSI) is a medical technology firm dedicated to the creation and commercialization of advanced therapeutic solutions for individuals suffering from peripheral and coronary artery diseases, serving markets both within the United States and internationally. For peripheral artery disease (PAD), CSI offers a range of catheter-based systems designed to treat various types of arterial plaque, including severely calcified deposits, in arteries located both above and below the knee. These systems aim to provide improved outcomes compared to conventional surgical, interventional, and pharmacological treatments.