An object of the present invention is to provide an intrathoracic pressure measurement adjustment system that easily measures intrathoracic pressure and adjusts the intrathoracic pressure. An intrathoracic pressure measurement and adjustment system that mutually performs measurement of intrathoracic pressure and adjustment of the intrathoracic pressure, the indwelling needle unit that punctures the chest cavity toward the thorax, the pressure gauge unit that measures the intrathoracic pressure, and the intrathoracic chamber A first path that connects the indwelling needle part and the pressure gauge part, and a container part that collects excess air, and a discharge port part that opens the repaired excess air to the outside air, and the indwelling needle A second path connecting the container part and the container part, a third path connecting the container part and the discharge port part, and a fourth path connecting the pressure gauge part and the discharge port part, Furthermore, it has a direction switching stopcock that can switch the first route, the second route, the third route, and the fourth route, respectively.簡便に胸腔内圧を測定し、且つ、該胸腔内圧を調整する胸腔内圧測定調整システムを提供することを目的とする。胸腔内圧の測定と該胸腔内圧の調整を相互に行う胸腔内圧測定調整システムであって、胸郭内に向けて胸腔穿刺する留置針部と、前記胸腔内圧を測定する圧力計部と、前記胸腔内の過剰空気を捕集する容器部と、前記補修された過剰空気を外気に開放する排出口部と、を含み、前記留置針部と前記圧力計部を繋ぐ第１の経路と、前記留置針部と前記容器部を繋ぐ第２の経路と、前記容器部と前記排出口部を繋ぐ第３の経路と、前記圧力計部と前記排出口部を繋ぐ第４の経路と、を有し、さらに、前記第１の経路、前記第２の経路、前記第３の経路、前記第４の経路をそれぞれ切り替えることができる方向切り替え活栓を有する。
