A flexible, multi-purpose, tubular device designed to be inserted into the duodenum via the oral cavity (cannulation) using a flexible endoscope to: 1) infuse contrast media; 2) deliver electrosurgical current in a monopolar configuration to cut the major duodenal papilla (papillotomy); and 3) balloon dilate the opening to the biliary tract, during endoscopic retrograde cholangiopancreatography (ERCP). It includes proximal controls, a distal monopolar electrosurgical cutting wire, an inflatable balloon and an inner lumen(s). It is intended to be used alongside separate devices designed for the removal of biliary stones. This is a single-use device.