PROBLEM TO BE SOLVED: To provide a nostril cannula capable of making it hard to visually confirm the mounting state of a nostril cannula by another person, capable of making it hard to bent the nostril cannula by the action of external force and capable of making it hard to intercept the flow of air by kink even at the time of bending of the nostril cannula.SOLUTION: A nostril cannula includes: a tubular body part formed of an elastically deformable material having light permeability and having an internal space and a pair of nostril insertion parts protruded from the central part in the axial direction of the body part in a diametric direction and communicated with the internal space of the body part to be formed in a tubular shape. In the body part, each of the regions between the end part in the axial direction of the body part and the nostril insertion parts is constituted of a base part of which the surface on the side directed to the face is flat and an opposed part forming the internal space of the body part between the opposed part and the base part. A protruded part protruded to the internal space of the body part is provided to the inner wall surface of the opposed part.COPYRIGHT: (C)2014,JPO&INPIT【課題】鼻孔カニューラを装着していることを、他者がより視認し難くすることができ、また外力が作用して屈曲しにくく、屈曲したとしてもキンクによる空気の流れを遮断しにくくすることができる鼻孔カニューラを提供する。【解決手段】本発明に係る鼻孔カニューラは、透光性を有する弾性変形可能な材料で形成され、内部空間を有する管状の本体部と、前記本体部の軸方向の中央部から径方向に突出し、当該本体部の内部空間と連通し管状に形成された一対の鼻孔挿入部と、を備え、前記本体部において、当該本体部の軸方向端部と前記鼻孔挿入部との間の各領域は、顔面に向く側の面が平坦状の基部と、前記基部との間に前記本体部の内部空間を形成する対向部と、で構成され、前記対向部の内壁面には、前記本体部の内部空間に突出する突出部が設けられている。【選択図】図5
