PROBLEM TO BE SOLVED: To provide a tracheal tube capable of removing a foreign matter such as a sputum adhered to an inner face 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 formed in a substantially circular cross section, in which a distal end part and a base end part are connected through a curved part and a diameter-reduced part provided between an outer face and an inner face of the tube body, in which at least a part of the inner face of the tube body is reduced in diameter.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内面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に形成されたチューブ本体と、前記チューブ本体の外面と内面との間に設けられ、前記チューブ本体の内面の少なくとも一部を縮径させる縮径部とを有することを特徴とする。【選択図】図3
