Drainage system designed for intervention near the gantry used for treatment of patients who are obese, designs aids in the drainage of fluids that are gathered near the surface. System provides the following benefits. Smooth catheter surface, short drainage catheter, high concentrate of barium sulphate provides quality x-ray contrast. The drainage catheter is made using soft and un-bendable polyurethane; large oval eyes provide superior drainage. Unit parts attachment tape, three-way valve, 1.5l secretion bag, Obturator for catheter stretching, Pigtail drainage catheter with oval side eyes and A mandarin with sharp puncture cutting edge.