DEVELOPMENT OF A NEW PERORAL CHOLANGIOSCOPE (FDS-CP)
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概要
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The development and improvement of a peroral cholangioscope have been performed with a great effort in our department since the technical establishment of endoscopic papillotomy. After several processes of trial and error, we have succeeded now in producing a new fibercholangioscope (FDS-CP), which is easily introduced into the common bile duct via sphincterotomized papilla of Vater under the rope-way guidance of a balloon-catheter. With the present scope, it is not necessary any more to use a combination set of supplementary devices of inner and outer guiding tubes which were indispensable in the previous developmental stages. FDS-CP is 1, 400mm in its effective length with 50mm apical part of fairly small diameter (6.0mm ∅). The proximal part other than the apical part is slightly bigger with 8.5 mm∅ diameter. There are two angle mechanisms, the first angle being located at from 6.5 to 44.5mm from the tip, flexing 90°up and down respectively, and the second angle being located at from 57 to 105mm from the tip, flexing 4 directionally, 180° up and 90° down, and 90°bilaterally. We succeeded in introducing the scope into the common bile duct in all 12 cases tried. The time required for introduction is, on the average, 5 minutes for a balloon-catheter fixed in the common bile duct through the ordinary f iberduodenoscope (FDS), and 8 minutes for the main scope (FDS-CP) introduced up there under the guidance of a ballooncatheter. Among 12 cases examined by FDS-CP, we experienced one case of the left intrahepatic bile duct cancer, which was successfully diagnosed by mean of biopsy with the present scope, one case of stones in the common bile duct and one case of intrahepatic biliary stones, both of which were successfully treated by removing or crushing down the stone with a basket forceps through the scope. With the present scope FDS-CP, it has now become possible to perform minute observation and accurate biopsy of the common bile and the partially main intrahepatic bile ducts, and also to try to remove stones located in the biliary tracts.
- 社団法人 日本消化器内視鏡学会の論文
社団法人 日本消化器内視鏡学会 | 論文
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