This invention provides a clot suction catheter which functions well in the flexibility and the suction ability even though its tip tube is a triple lumen tube, and it is a structure wherein an imaging marker is provided on its tip.In a clot suction catheter which comprises a proximal tube 2 of double lumen having a suction lumen 11 and a core wire lumen 12, and a distal tube of triple lumen tube 3 which has a guide wire lumen 13 in addition to a suction lumen 11 and a core wire lumen 12, a clot suction catheter 1 is obtained which is configured that the tip of said distal-tube is cut aslant, and onto the cut face 31 is connected a terminal suction tube 4 of softt double lumen which has a tip opening 41 slanting in the substantially same direction as the eut face.本發明提供一種血塊吸引導管,其無論是前端側管為三腔管(triple lumen tube),亦或是前端部設置有造影標識器之構成,仍然可發揮柔軟性及吸引力。本發明之血塊吸引導管1具備:含有吸引腔11及心線腔(core wire lumen)12二個腔的基端側管2,及除了吸引腔11及心線腔12之外還具有導線腔13之三個腔的前端側管3,其中,建構成將該前端側管的前端斜切,而於該切割面31連接柔軟雙腔之末端吸引管4,其具有傾斜於和該切割面大致相同方向之尖端開口部41。1‧‧‧血塊吸引導管2‧‧‧基端側管3‧‧‧前端側管4‧‧‧末端吸引管5‧‧‧造影標識構件6‧‧‧尖端薄片7‧‧‧導線11‧‧‧吸引腔12‧‧‧心線腔13‧‧‧導線腔31‧‧‧切割面41‧‧‧吸引開口部
