Intrahepatic Bile Duct Carcinoma

The goal of this clinical trial is to learn if additional chemotherapy by means of a chemo pump can prevent return of disease in adult patients with bile duct cancer in the liver that can be treated with surgery. The main questions it aims to answer are: * Does addition of chemotherapy by means of a chemo pump lead to less return of disease within the liver two years after surgery? * Does addition of chemotherapy by means of a chemo pump lead to longer survival of patients? * Does addition of chemotherapy by means of a chemo pump lead to an increase in quality of life? Participants will receive an implanted chemo pump, through which additional chemotherapy will be given to the liver in addition to surgery.