FIELD: medicine.
SUBSTANCE: invention relates to medicine and surgery. Through instrumental channel duodenoscope into lumen of choledoch ultra-fine oral choledochoscope is introduced. Through instrumental channel of choledochoscope conductor is introduced. Under visual control conductor is brought behind choledoch stricture with controlled distal end of choledochoscope. After removal of choledochoscope bougienage of stricture is made via installed conductor.
EFFECT: method enables endoscopic bougienage of cicatrical choledoch strictures, when conductor is failed to brought behind stricture area under X-ray control.
1 cl, 8 dwg, 1 ex
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