PROBLEM TO BE SOLVED: To provide a mask with a reservoir bag, which prevents clogging at a connection part of a connector tube with the reservoir bag when wearing the mask.SOLUTION: The mask 1 with the reservoir bag includes: a mask body 2 for covering a mouth and a nose the expansible reservoir bag 3 communicating with the oxygen introduction port 2c of the mask body 2 and the connector tube 4 which is the tube for connecting the oxygen introduction port 2c of the mask body 2 to the reservoir bag 3 and where a connection hole to which an oxygen tube 20 is connected is opened in the middle part. The reservoir bag 3 is formed to have a shape to be stored in a space, which is formed by the jaw lower part, neck part, and clavicle hollows of a dorsally lying person, whose head is not bent backward but kept at a natural position, in a state where the reservoir bag 3 is expanded. Consequently, the reservoir bag 3 is prevented from being bent, and also it is prevented that the communication of oxygen or air with high-concentrated oxygen is blocked between the reservoir bag 3 and the mask body by clogging the connection part with the connector tube 4.COPYRIGHT: (C)2010,JPO&INPIT【課題】マスク装着時にコネクタチューブのリザーバーバッグとの接続部位が閉塞されることを防止できるリザーバーバッグ付マスクを提供する。【解決手段】口及び鼻を覆うマスク体2と、マスク体2の酸素導入口2cに連通し膨縮可能なリザーバーバッグ3と、マスク体2の酸素導入口2cとリザーバーバッグ3との間を連結する管で中間部分に酸素チューブ20が連結する連結孔が開口形成されたコネクタチューブ4とを備えたリザーバーバッグ付マスク1において、リザーバーバッグ3を、膨張させた状態において、頭部を後屈せず自然位の頭部の位置を保った状態の仰臥位のヒトの顎下部、頸部、及び鎖骨上窩の間の空間に収まる形状に形成した。これにより、リザーバーバッグ3の折れ曲がりが防止でき、コネクタチューブ4との接続部位が塞がれてリザーバーバッグ3とマスク体との間で酸素もしくは高濃度酸素空気の往来が遮断されることが防止できる。【選択図】図1
