TRIPLE BALLOON SYSTEM FOR HIGH-PRECISION RADIATION TREATMENT OF PROSTATE CANCER

摘要

A triple balloon system comprises first to third balloon units, a center passage and a cover part, wherein the first to third balloon units include first to third passages connected to the first to third balloons, respectively, the center passage is positioned between the first to third balloon units to discharge gas inside a body, and the cover part covers the first to third passages and the center passage and fixes and supports the positions of the first to third balloon units.