Inserted into the trachea comprising a lumen having a distal end disposed on the lung side in the trachea, a proximal end provided on the opposite side of the distal end, and an airway securing lumen penetrating from the proximal end to the distal end In a possible tracheal tube, a fine structure region is disposed on at least a part of an inner surface forming an airway securing lumen of a luminal body, and the fine structure region has a surface on which irregularities of several tens of μm are formed. Provided is a tracheal tube that can be inserted into the trachea so that wrinkles do not easily adhere.気管内の肺側に配置される先端部、先端部と反対側に設けられる基端部、および、基端部から先端部にかけて貫通する気道確保用ルーメンを有する管腔体を備える、気管に挿入可能な気管用チューブにおいて、管腔体の気道確保用ルーメンを形成する内面の少なくとも一部に微細構造領域が配置され、微細構造領域は、数十μｍサイズの凹凸が形成された表面を有し、痰が付着しにくい、気管に挿入可能な気管用チューブが提供される。
