Capable of accommodating the cleaning tank, drain port is an opening provided in said cleaning tank, and a discharge port opening To-eki endoscopic treatment apparatus of the present invention, connected to the outlet To-eki endoscope Multipurpose conduit is a first liquid inlet portion for introducing a first fluid into the multi-purpose pipe path, a second liquid inlet portion for introducing a second liquid to the multi-purpose pipe in the multi-purpose pipe within a gas-liquid mixing unit for feeding to the discharge opening and mixed with gas and liquid, a liquid feed unit for feeding the gas-liquid mixing unit of liquid of the multi-purpose pipe in the gas-liquid mixture and the multi-purpose pipe It includes a switching unit for opening and closing the connection to the unit, and a compressor for delivering the gas to the gas-liquid mixing section.本発明の内視鏡処理装置は、内視鏡を収容可能な洗浄槽と、前記洗浄槽に設けられた開口部である排液口、採液口及び吐出口と、前記採液口に連結された多目的管路と、前記多目的管路内に第1液を導入する第1液導入部と、前記多目的管路内に第2液を導入する第2液導入部と、前記多目的管路内の液体を気体と混合して前記吐出口に送出する気液混合部と、前記多目的管路内の液体を前記気液混合部に送出する送液部と、前記多目的管路及び前記気液混合部との接続を開閉する開閉部と、前記気液混合部に前記気体を送出するコンプレッサと、を具備する。
