Disclosed is a drainage system including a drainage tube, on one end of which formed a hook, and a drainage mechanism formed on the other end. The hook allows for hanging on the renal pelvis side, and the drainage is set on the bladder side. A bending section is formed according to a preset angle within a range of 25DEG~55DEG to provide comfort for patients.一種引流裝置,包含一本體導管,該本體導管於一端形成一勾部以及於另一端形成有一引流部,該勾部以供勾掛於腎盂的一側,該引流部以供放置於膀胱之一側,在該勾部與該引流部之間以一預定彎曲角度而彎折形成一彎弧部,且該彎弧部的該預定彎曲角度之範圍為25°~55°之間,以提升其實施於人體內的舒適度。100‧‧‧引流裝置1‧‧‧本體導管11‧‧‧勾部12‧‧‧引流部13‧‧‧彎弧部14‧‧‧通孔
