PROBLEM TO BE SOLVED: To provide a tracheal tube capable of easily removing a foreign matter such as a sputum adhered to the inside of a tube body even when the tube has a curved shape having a curved part between a distal end part and a base end part.SOLUTION: A tracheal tube inserted into a trachea of a human body comprises: a tube body having a substantially circular cross section, in which a distal end part and a base end part are connected through a curved part and an inner cylindrical body formed in a cylindrical shape and covering at least a part of an inner face of the tube body. The inner cylindrical body has a weakened part for cutting, which extends from one end toward the other end. By cutting off the weakened part for cutting, the inner cylindrical body can be peeled from the inner face of the tube body and removed to the outside of the tube body.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2016,JPO&INPIT【課題】先端部と基端部との間に湾曲部を有する曲がった形状であってもチューブ本体の内部に付着した痰等の異物を容易に除去することができる気管チューブを提供する。【解決手段】人体の気管に挿入される気管チューブであって、湾曲部を介して先端部と基端部とが繋がっている断面略円形のチューブ本体と、円筒状に形成されて前記チューブ本体の内面の少なくとも一部を覆う内筒体とを有し、前記内筒体は一端から他端に向けて延びる切断用弱化部を有し、該切断用弱化部が切断されることにより前記チューブ本体の内面から剥離して該チューブ本体の外部へ除去可能であることを特徴とする。【選択図】図3