Fluid control device

A fluid control device comprising:

• a container having a first connection hole, a storage chamber, a second connection hole and a third connection hole, wherein the first connection hole communicates with an inside of a subject, the storage chamber stores a liquid among fluids flowed into the storage chamber through the first connection hole, the second connection hole communicates with the storage chamber, and the third connection hole communicates with a suction hole provided in a vacuum source and a gas among the fluids flows out through the third connection hole;
• a pressure resistance portion provided between the storage chamber and the suction hole and generating a difference between an air pressure in the storage chamber and an air pressure in the suction hole;
• and
• a passive valve having a valve housing and a diaphragm, wherein a first ventilation hole, a second ventilation hole and a third ventilation hole are provided in the valve housing, and the diaphragm divides an inside of the valve housing into a first region communicating with the first ventilation hole and a second region communicating with the second ventilation hole,
• wherein the first ventilation hole communicates with the second connection hole, the second ventilation hole communicates with the suction hole, and the third ventilation hole communicates with an outside of the valve housing.