A Common Duct Set is a collection of surgical instruments specifically designed for procedures involving the common bile duct, which is part of the biliary system responsible for carrying bile from the liver and gallbladder to the small intestine. The set typically includes instruments for incision, exploration, dissection, and manipulation of the common bile duct and surrounding structures. Common instruments found in such a set may include scalpels, forceps, scissors, retractors, dilators, catheters, probes, and specialized instruments for ductal exploration and stone removal. These sets are essential for surgeons performing procedures such as choledochotomy (surgical incision of the common bile duct) or interventions to address conditions like bile duct stones or strictures.