The present invention relates to an immunoassay device and an immunoassay method. According to an aspect of the present invention, an immunoassay device includes a measurement unit provided with a detection unit disposed at one side of a stage accommodating cartridges having a plurality of wells to move in a direction, in which the plurality of cartridges are arranged, and capable of measuring a state within the well disposed at the outermost side, and including a shielding plate that moves to cover an opened upper portion of the well disposed at the outermost side to block introduction of light into the well.

An inspection device including a measurement part, a liquid supply area where a liquid supply step is performed, a relay area where a plate for which a reaction step has been completed is located, and a mounting part on which a plurality of plates is mounted at different positions, includes a first conveyance part configured to move the mounting part to locate a plate selected from among the plurality of plates mounted on the mounting part in the liquid supply area and the relay area at different times, a second conveyance part configured to convey the selected plate located on the relay area to the measurement part, wherein the liquid supply step, which is performed on the selected plate, includes at least a period in which the liquid supply step is performed in parallel with the reaction step, which is performed on at least one of the plates other than the selected plate from among the plurality of plates.

A cell picking device for sucking cells from a liquid sample in a sample container includes a sucking member to which a pipette tip is attachable, a driver that moves the sucking member and performs suction through the sucking member and the pipette tip, a work mode switcher that switches a work mode of the driver between a first mode and a second mode, and a controller that controls the driver.