A cuff pressure control device including a pump, an internal pipe connected to the pump, a pressure sensor for measuring the internal pressure of the internal pipe, and a control unit for controlling the cuff pressure. The cuff can be separated from the cuff pressure control device, and in the separated state, the first space communicating with the cuff is kept airtight and the cuff pressure is maintained. Further, in the connected state in which the cuff in the separated state is connected to the cuff pressure control device and the cuff and the internal pipe are communicated with each other, the control unit controls the pressure in the cuff pressure control device such that the cuff is connected to the cuff pressure control device To the pressure in the first space before being connected to the first space.ポンプと、ポンプに接続された内部配管と、内部配管の内圧を測定する圧力センサと、カフ圧を制御する制御部とを備えるカフ圧制御装置。カフはカフ圧制御装置と分離可能であり、分離状態において、カフと連通する第１空間が気密に維持され、カフ圧が維持される。制御部は、さらに、分離状態にあったカフがカフ圧制御装置に接続され、カフと内部配管とが連通している接続状態において、カフ圧制御装置内の圧力を、カフがカフ圧制御装置に接続される前の第１空間の圧力に調整する。
