A transfusion apparatus according to an embodiment includes a finger-type pump mechanism, the finger-type pump mechanism including a plurality of fingers, the plurality of fingers and a holding member sandwiching a passage composed of a flexible material, the holding member being arranged to face the plurality of fingers in an opposed manner, the finger-type pump mechanism depressing and elastically deforming a side face of the passage by a peristaltic motion reciprocating the plurality of fingers to send a liquid with which the passage is filled, the transfusion apparatus comprising: a pressure sensor provided to at least one of the plurality of fingers or the holding member； and a determination unit that determines presence or absence of bubbles in the passage based on pressure detected by the pressure sensor when a finger is depressing the passage.
