An apparatus for the removal of stones of the bile duct, to facilitate

摘要

Arrangement for treating stones in bile ducts intended to be inserted via a dilation catheter through body tissue into a bile duct for the localisation and later removal of stones, as well as intended to constitute a channel for the subsequent insertion of instruments that protect the walls of the ducts, including a flexible tube section (1) that has an internal axial main channel extending from a front end to a rear end, an inflatable balloon device (3) that can be regulated in a radial direction arranged directly adjacent to the front end of the tube section, whereby the balloon device in its initial starting position has essentially the same external cross-sectional shape as the immediately adjacent tube section (1).