method for balloon dilatation

摘要

A method for balloon dilatation provides the catheter introduction with a balloon in a big nipple duodenum. In the upper part of large ampullar duodenal papilla (longitudinal folds) longitudinal section are performed, sufficient to introduce to the mouth of the choledochus catheter (2-), and then radiological monitoring of the catheter installation is performed, then using a guide the catheter is replaced by balloon dilator and dilatation of the sphincter of Oddi is performed.