PROBLEM TO BE SOLVED: To provide a tracheal tube capable of improving safety.SOLUTION: A tracheal tube 1 includes a tube body 2, and a cuff 3 that is mounted to the tube body 2 and has a deflatable/inflatable trunk portion. A covering region 30 that covers a tracheal inner wall of the trachea in a state where the trunk portion is inflated in the trachea, has a sealed part 31 that comes into contact with the tracheal inner wall seamlessly across a circumferential direction of the trunk portion. The width of at least a part of the sealed part 31 is less than 1 mm.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2017,JPO&INPIT【課題】安全性を向上可能な気管チューブを提供する。【解決手段】チューブ本体2と、チューブ本体2に装着され、胴部が収縮及び拡張可能なカフ3と、を備え、胴部が気管内で拡張した状態において気管の気管内壁を被覆する被覆領域30が、胴部の周方向に亘って切れ目なく気管内壁と接触する密閉部31を有し、密閉部31の幅は少なくとも一部が1mm未満である、気管チューブ1。【選択図】図4
