PROBLEM TO BE SOLVED: To provide a trachea tube, a balloon cuff, and a sealing member capable of completely cutting off a space in the trachea on a larynx side of the trachea and a space in the trachea on a main bronchial side by being applied to the cuff of the trachea tube, and capable of preventing inapparent aspiration, and, by extension, aspiration pneumonia.SOLUTION: A trachea tube 1 for an artificial respirator includes a tube 3 having a predetermined length, an inflatable cuff 5 attached to the external surface of the tube 3, and a sealing member 9 closely attached to the external surface of the inflatable cuff 5. The sealing member 9 airtightly seals a space between the external surface of the inflatable cuff 5 and the inner surface of the trachea when the inflatable cuff 5 is inflated, and deforms while being in close contact with the external surface of the inflatable 5 when the inflatable cuff is contracted.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2018,JPO&INPIT【課題】気管チューブのカフに適用することによって、気管の喉頭側の気管内の空間と、主気管支側の気管内の空間との間を完全に遮断することができ、不顕性誤嚥、ひいては誤嚥性肺炎を予防することができる気管チューブ、バルーンカフ、及び封止部材を提供する。【解決手段】人工呼吸器用の気管チューブ１は、所定の長さを有するチューブ３と、このチューブ３の外面に取り付けられた膨張性カフ５と、この膨張性カフ５の外面に密着して取り付けられた封止部材９を備え、封止部材９は、膨張性カフ５の膨張時に、膨張性カフ５の外面と、気管の内面との間を気密に封止し、かつ膨張性カフの収縮時に、膨張性カフ５の外面に密着したまま変形することを特徴とする。【選択図】図２
