Abstract
Endoscopic papillotomy is one of the great advances in recent years in the fields of the endoscopy. We have been attempted the examination of the biliary duct by inserting the fiberscope through the incized papilla into the common bile duct after endoscopic papillotomy. Recently we have succeeded in making the peroral fibercholedochoscope by courtesy of Machida Co. Ltd…In this method, we use the choledochoscope with the sliding tube, which is so-called direct method. The sliding tube has no optical system and its bending angle of the tip are 150°in up, 120°in down, and 90°in right and left directions. The length of the soft tube is 1100 mm with an inside diameter of 7 mm and an outside diameter of 13 mm. Choledochoscope is a front-view fiderscope, its bending angle of the tip is 150°in only one direction (up). The length of the soft tube is 1400 mm with a diameter of 6 mm. It is equipped with inflation, water feeding, suction devices and a large channel of 2.4 mm. This procedure has been performed in 21 patients. We investigated the rate of insertion to the duodenal second portion and front view of the duodenal papilla. As the result, we considered that this scope had still some points for improvement. This work was supported in part by a Grant-in-Aid for Cancer Reseach (52-24) from the Ministry of Health and Welfare.
