The CORDIS 4F JR 3.5 100cm 538-419 is a diagnostic catheter that is used in a variety of procedures, including angioplasty, stenting, and valve replacement. It is made of a biocompatible material and has a atraumatic tip to help reduce the risk of patient injury. The catheter is also kink-resistant and has a atraumatic tip to help reduce the risk of patient injury.