PROBLEM TO BE SOLVED: To provide a tracheal tube with which the likelihood of inflammation occurring in a tracheal inner wall is reduced.SOLUTION: The tracheal tube according to the present invention comprises: a tube body and a cuff which is mounted to the tube body, and of which barrel is contractible and expandable. The tracheal tube includes a sealed part 31a at which a covering region 30 for covering a tracheal inner wall of a trachea when the barrel is expanded inside the trachea continuously contacts the tracheal inner wall along a circumferential direction of the barrel. The sealed part includes: a proximal side sealed region 34a which is in continuous contact with the tracheal inner wall along the circumferential direction of the barrel in a proximal side peripheral edge part 33a located in a proximal side of the tube body and a distal side sealed region 34b which is in continuous contact with the tracheal inner wall along the circumferential direction of the barrel in a distal side peripheral edge part 33b located in a distal side of the tube body.SELECTED DRAWING: Figure 6COPYRIGHT: (C)2017,JPO&INPIT【課題】気管内壁に炎症を起こしにくくすることが可能な気管チューブを提供する。【解決手段】本発明の気管チューブは、チューブ本体と、前記チューブ本体に装着され、胴部が収縮及び拡張可能なカフと、を備え、前記胴部が気管内で拡張した状態において前記気管の気管内壁を被覆する被覆領域30が、前記胴部の周方向に亘って切れ目なく前記気管内壁と接触する密閉部31aを有し、前記密閉部が、前記チューブ本体の基端側に位置する基端側周縁部33aにおいて前記胴部の周方向に亘って切れ目なく前記気管内壁と接触する基端側密閉領域34aと、前記チューブ本体の先端側に位置する先端側周縁部33bにおいて前記胴部の周方向に亘って切れ目なく前記気管内壁と接触する先端側密閉領域34bと、を含むことを特徴とするものである。【選択図】図6