Frauenfeld, Switzerland, 22. April 2020. SIS Medical AG (Swiss Interventional Systems), a leading developer, manufacturer and distributor of high-quality and high-performance products in the field of interventional cardiology, appoints Sergej Kammerzell as CEO per May 2020. Kammerzell will lead SIS Medical AG’s next growth phase and transformation into a globally operating company and drive its expansion into new, international markets such as the US market. Willi Zwahlen, outgoing CEO and co-founder of SIS Medical AG, will remain with the company during a transition period as Senior Vice President of Sales and will continue his role as a Member of the Board of Directors.