Nuwellis, Inc. operates as a medical device company. It engages in the provision of products for the treatment of fluid overload. The firm's products include Aquadex FlexFlow System, which provides an ultrafiltration for the removal of salt and water in patients with hypervolemia, or fluid overload. It operates through Cardiac and Coronary Disease Products segment. The company was founded by Crispin Marsh and William S. Peters in November 1999 and is headquartered in Eden Prairie, MN.