title: A new instrument for inserting a U tube.
abstract: A new instrument for the placement of U tubes through malignant and benign biliary strictures consists of a 3 mm Bakes dilator modified by a circumferential groove and a small hole through its tip.
mesh_terms: D001650:Bile Duct Neoplasms / Q000601:surgery*; D003251:Constriction, Pathologic / Q000601:surgery; D004106:Dilatation; D006500:Hepatic Duct, Common / Q000601:surgery*; D006801:Humans; D013525:Surgical Instruments