Under quieting the face mask for the patient who receives endoscope hand skill (10) is. This face mask (10), windpipe positive pressure supply means to the point (16 and 17) with, the occlusion obstruction vessel (18) being, in that the aperture (20) the occlusion obstruction vessel which it possesses (18) with, the unidirectional valve (22) with it includes. The unidirectional valve (22), the endoscope device the unidirectional valve (22) passing by in, the hole (20) in order for it to be possible to pass inside, open position and the hole adaptation (20) it has with the closed position which seals substantially.鎮静下内視鏡手技を受ける患者用のフェイスマスク(10)である。このフェイスマスク(10)は、鼻への気道陽圧供給手段(16、17)と、咬合阻止器(18)であって、その中に開口(20)を有する咬合阻止器(18)と、一方向弁(22)とを含む。一方向弁(22)は、内視鏡装置が一方向弁(22)の中を通って孔(20)内を通過することができるように適合された開位置と、孔(20)を実質的に封止する閉位置とを持つ。
