Abstract
Endoscopic papillotomy is a useful and safe method for patients with common bile duct stones. There are several types of papillotome, but they are not always satisfactory to use, for example, poorness of durability and difficulty of insertion into papilla of Vater, etc. These ploblems are inherent in the common structure: the bare and exposed wire on the tip of canula. Therefore we have made a new type papillotome, in which the wire can be completely withdrawn into the canula, without leaving wire exposed. In Sakura National Hospital, endoscopic papillotomy was carried out on 14 patients with common bile duct stones since July 1978, and in the 11 cases of them the stones were successfully removed. In the latest eight cases in which the new type papillotome was used, all of stones were removed without severe complications. The new type papillotome had strong durability, and it was especially suited for fine incision, i, e, in the cases with duodenal diverticulum or in the cases of reincision.
