TWI803779B

[Problem] A purpose of the present invention is to provide a fluid pressure-feeding device that can pump out and pressure-feed a pumping fluid from a bag in which said fluid is housed, leaving a sufficiently small amount remaining, even when said bag has a fluid-housing section and a non-fluid-housing section. [Solution] A fluid pressure-feeding device 10 has: a container 20 that houses a bag 100; a plate 50 that is mounted in the interior of the container 20, above the bag 100; and a pump 70 that suctions a fluid housed in the bag 100. It is possible to use the pump 70 to suction and pressure-feed the fluid via an opening 106 formed in the bag 100, while applying a pressing force to the bag 100 via the plate 50. There is a seat section 30 that is positioned on the bottom side of the container 20 and can form a storage space section 35. By having a bag that has a fluid-housing section 102 and a non-fluid-housing section 104 be housed in the container 20 as the bag 100, the non-fluid-housing section 104 can be