PROBLEM TO BE SOLVED: To provide a tracheal tube with which safety can be increased.SOLUTION: The tracheal tube 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 contact part at which a covering region for covering a tracheal inner wall of a trachea when the barrel is expanded inside the trachea, contacts the tracheal inner wall and a wrinkle part which does not contact the tracheal inner wall. The wrinkle part includes: a connection where three or more wrinkle lines cross with each other and a branching wrinkle which does not extend from a distal rim to a proximal rim of the covering region.SELECTED DRAWING: Figure 5COPYRIGHT: (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が、前記気管内壁と接触する接触部と、前記気管内壁と接触しないしわ部と、を有し、前記しわ部は、3つ以上のしわ線が交わる接続箇所を有し、前記被覆領域の先端側周縁から基端側周縁まで連通していない分岐しわを備える。【選択図】図5
