A mobile air bag is for use with an invasive inspection device (eg, an endoscope), the movable air bag comprising: a valve guide, the valve guide including a first end extending into the patient's esophagus during use, and a second end of the body of the patient； an air bag connected to the first end of the valve conduit, the central portion of the air bag is formed with a wearing space for the inner mirror to be worn a set of positions, coupled with the endoscope； a gas valve connected to the second end of the valve conduit, the airbag can be inflated by the air valve after being brought into the esophagus of the patient by the endoscope In order to temporarily close the esophagus of the patient by using the inflated balloon.一種活動式氣囊係供配合一侵入式檢查儀器(例如：內視鏡)使用，該活動式氣囊包括：一氣閥導管，該氣閥導管係包含有一使用時延伸進入患者食道之第一端，以及一保持在患者體外之第二端；一連設於該氣閥導管第一端之氣囊，該氣囊之中央部位係形成有一穿置空間，該穿置空間係供套設於一內視鏡之穿套位置上，而與該內視鏡互相結合；一連設於該氣閥導管第二端之氣閥，當該氣囊藉由內視鏡帶入患者的食道後，可利用該氣閥對氣囊充氣，藉以利用該充氣膨脹後之氣囊暫時封閉患者的食道。
