Breathing apparatus, neckpiece body of the endotracheal tube or tracheostomy cannula (100) relates to (10), wrapped (4) breathing tube, The present invention is directed to the breathing tube with a sealed system neckpiece body (10) in particular I will be closely linked. Consists outer foil (1) and (2) an inner foil, the outer foil and inner foil is separated from the other one another neckpiece body (10), the outer foil is made of a material that easily stretched elastic. Outside foil is larger than the diameter of the objective which the trachea diameter were given the breathing apparatus by the internal pressure of the maximum 50hPa, it becomes at least 1.5 times the diameter of the outer circumference of the tube, for example. Elastic stretchability is made of material less than the material of the outer foil is in the form of larger inner foil, with a neckpiece body the diameter when subjected to internal pressure of up 20hPa without constraint from the environment becomes larger than the desired diameter of the trachea. [Selection] Figure Figure 1【課題】 本発明は、呼吸装置、特に気管開口カニューレ(100)または気管内チューブの襟巻体(10)に関し、襟巻体(10)は呼吸チューブ(4)を包み、密封方式にて呼吸チューブに緊密に連結する。襟巻体(10)は内箔(1)と外箔(2)から構成され、内箔と外箔は相互に他から分離しており、外箔は弾性で容易に延伸する素材で作られる。外箔は最大50hPaの内部圧によりその直径が呼吸装置を付した目的気管の直径よりも大きく、具体的にはチューブの外周直径の少なくとも1.5倍になる。内箔は、弾性延伸性が外箔の素材より低い素材で作られており、大き目の形態をしており、外界から拘束せずに最大20hPaの内部圧を架けるとその直径は襟巻体を付した目的気管の直径よりも大きくなる。【選択図】 図1
