PROBLEM TO BE SOLVED: To provide a tracheal tube having a suction lumen which can easily suck and remove foreign matters such as phlegm even for a patient who is lying down.SOLUTION: A tracheal tube comprises a tube body where a tip end part and a base end part are connected to each other through a curved part, and a cuff attached on the outer peripheral surface of the tube body. A suction lumen extending along a center axis on the inner peripheral surface of the tube body communicates with the outward of the tube body through a suction port which penetrates from an inner wall opening formed on the inner wall of the suction lumen to an outer wall opening formed on the outer peripheral surface at a position on the side closer to the base end part than the cuff. If a plane including the center axis is a first virtual plane, the inner wall opening, on a cross section orthogonal to the center axis and including the inner wall opening, is formed on the side of a lower surface part with respect to a second virtual plane passing through the center axis on the cross section and orthogonal to the first virtual plane, and at a position which does not intersect the first virtual plane and the second virtual plane.SELECTED DRAWING: Figure 10COPYRIGHT: (C)2016,JPO&INPIT【課題】寝ている状態の患者に対しても痰等の異物の吸引除去が容易な吸引用ルーメンを有する気管チューブを提供すること。【解決手段】湾曲部を介して先端部と基端部とが繋がっているチューブ本体と、前記チューブ本体の外周面上に取り付けられたカフと、を備え、前記チューブ本体の内周面の中心軸線に沿って延在する吸引用ルーメンは、前記カフよりも前記基端部側の位置で、前記吸引用ルーメンの内壁に形成された内壁開口から前記外周面に形成された外壁開口まで貫通する吸引口を通じて外方と連通しており、前記中心軸線を含む平面を第1仮想平面とした場合に、前記内壁開口は、前記中心軸線と直交し前記内壁開口を含む断面において、当該断面上の前記中心軸線を通り前記第1仮想平面と直交する第2仮想平面よりも下面部側であって、前記第1仮想平面及び前記第2仮想平面と交わらない位置に形成されている。【選択図】図10
