As of October 19, 2015, Sorin SpA was acquired by Cyberonics Inc. Sorin SpA, together with its subsidiaries, researches, develops, and delivers various therapeutic solutions to treat cardiovascular pathologies. It operates through Cardiac Surgery and Cardiac Rhythm Management (CRM) business units. The company provides disposable biomedical devices and systems, including heart-lung machines, oxygenators, autotransfusion systems and devices, mechanical heart valves, tissue heart valves, structureless valves, and annuloplasty rings for extracorporeal circulation during surgery. It also provides defibrillators and pacemakers, and systems for cardiac resynchronisation treatment, patient management, and cardiac arrhythmia assessment. In addition, the company offers single-use systems for urology, urodynamics, cardiac surgery, and haemodialysis. It serves hospitals, healthcare institutions, distributors, organised purchase groups, and government and private entities in Italy, rest of Europe, North America, and internationally. The company was incorporated in 2004 and is headquartered in Milan, Italy.