Apparatus for injecting and/or aspirating fluids in /out of a hollow organ, especially a biliary duct

摘要

The cannula (13) has a tension device, with which the tissue of the bile duct is enclosable at least between the inlet aperture and an outlet aperture of the cannula so that a fluid passage between the tissue and the cannula is excluded. A free end (14) of the cannula is angled and the tissue in the area of an angled introduction part is sealed against the cannula. The tension device is a pair of pliers (19), the jaws (20,21) of which are relatively movable so that the cannula or the tissue is firmly enclosed by the mouth (22) of the pliers (19) in the tension position or is freed in the outlet position.