JIS T 3243:2017

This Standard specifies tubes and catheters designed for the biliary tract, and their components. They are inserted into biliary tract [biliary duct (intrahepatic biliary duct, extrahepatic biliary duct), cholecyst, cystic duct, and papilla] or pancreatic duct, in the transduodenal, percutaneous transhepatic, or open abdominal surgery, for the purposes of performing the treatment, such as pus discharge, drainage, perfusion, expansion of stricture or papilla, prevention of stricture parts, fragmentation, grasp and collection, extraction and purge of calculus.