Frauenfeld, Switzerland – February 2nd, 2023. SIS Medical AG (Swiss Interventional Systems), a globally leading developer, manufacturer and distributor of high-quality and high-performance products in the field of interventional cardiology, announces the launch of its lead product OPN NC® PTCA Dilatation Catheter with TWIN-Wall technology in the US. The product extends treatment options by high performance and safety as well as providing successrates where other balloons fail. It is distributed by Worldwide Innovations & Technologies, Inc. (manufacturer and distributor of RADPAD® Radiation Protection Products), which is headquartered in Lenexa, Kansas.