An air-tube like conduit comprises an outer tube has an outer insertion portion capable of being inserted into the body of a patient and a combining portion installed at an upper end of the outer insertion portion an inner tube having an inner insertion portion capable of being inserted into the outer tube and a retaining portion fixed to the combining portion a neck plate combined to the combining portion of the outer tube. The neck plate is detachable and is made of soft material. Besides, a portion of the combining portion combined to the neck plate has a limiting portion and a lock groove for preventing the movement between the neck plate and the outer tube.一種氣管用管狀導管,其包括:一外側管,具有插入患者器官內部的外側插入部及設置在該外側插入部上端的結合部;一內側管,具有插入該外側管內部的內側插入部及設置在該內側插入部上端且固定在該結合部的固定部件;及一頸板(Neck Plate),結合在該外側管的結合部,並可拆合,使用柔軟材質形成。另外在該外側管的結合部和該頸板相互接觸的部位上還分別具有可防止該頸板在該外側管上移動的限位部和鎖槽。110‧‧‧外側管111‧‧‧外側插入部111a‧‧‧孔113‧‧‧結合部113a‧‧‧凸緣部113b‧‧‧凸緣部113c‧‧‧限位部113d‧‧‧切口槽130‧‧‧頸板131‧‧‧結合孔132‧‧‧連接孔133‧‧‧鎖槽
