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Endoscopic Examinations of the Biliary and Pancreatic Ducts Fourth Report: Development and Evaluation of the Fiberoptic Choledochoscope with the Balloon-tip Akira Nishimura 1 1Second Surgical Department, School of Medicine, Chiba University pp.1271-1278
Published Date 1970/9/25
DOI https://doi.org/10.11477/mf.1403111318
  • Abstract
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 As one of series of endoscopic methods of diagnosis in diseases of the biliary and pancreatic ducts, the authors have long exploited choledochoscope along with duodenofiberscope. In this paper is introduced a fiberoptic choledochoscope manufactured for trial with a balloon equipped at its tip (CHF NO. 4-type). Its performance, the setup and direction for use is described. Endoscopic pictures of intraluminal biliary tract is also displayed as visualized by this method. The results show that this method, when combined with cho ledochography, is very effective in the diagnosis of diseases of the biliary tract.

 The advantages of this method are: its simple maneuver saves time and personnel necessary for examination; removal of the bile can be done at the same time with holding a distance necessary for clear vision; and because no irrigation fluid is necessary any intra-abdominal pollution does not take place and no accumulation of fluid is seen in the lumen of the duodenum. On the other hand, it has several demerits; the reflected light of the balloon surface is superimposed on the observation field; only plane observation is possible because this method is a contact vision; it is impossible to advance the scope into the hepatic ducts with the balloon inflated as it is. Furthermore, the scope rubs against the lumen of the bile duct in removing the balloon; the balloon at the tip stands in the way of free passage of the forceps. The irrigation method hitherto employed is free from those drawbacks seen in the balloon method. When irrigation fluid is adequately dealt with, the irrigation method is also a very profitable one. The authors are now deliberating on a circulating irrigation mechanism in which is possible to recover irrigation fluid outside the body.

 A reference has also been made to the present situation of choledochoscopy with considerations on its literature as well as to characteristics of choledochoscopy.


Copyright © 1970, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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