Microwave application to cholangioscopic treatment of diseases in the bile duct

Abstract

We have tried to make use of a microwave generator (Microtaze^® for hepatectomy, Heiwa Electrics Co., Ltd. Osaka Japan) to experimentally and clinically break calcium bilirubinate stones, and coagulate tumors in the bile duct. Treatments such as to break stones and coagulate tumors in the bile duct are called as Microwave lithotomy and Percutaneous Transhepatic Cholangioscopic Microwave Tissue Coagulation (PTCS-MTC), respectively.
Concerning Microwave lithotomy, our task is to make a cable with a lower capacity to maximize the efficiency of microwave lithotomy.
And, as for neoplasms, PTCS-MTC may be useful for palliation of inoperable patients with bile duct cancer, and for cure of the patients in the early stage of progression.