[Original techniques for biliary surgery (author's transl)].

1. Aspiration of intrahepatic stones. This uses a catheter designed for selective aortography with a special probe, short and provided with a soft cap. The instrument is inserted in the hepatic canal to the contact of the stone, under TV guidance. Strong suction allows extraction. 2. Hepato-gastric prosthesis as palliative. Treatment for cancer of the biliary tract. A. Pezzer sound is placed in a dilated hepatic canal at one end, the other being fixed in the stomach. This is an ultimate solution for far advanced cases, that can only suppress the itching.