CELL CAPTURING APPARATUS, CELL CAPTURING DEVICE PROVIDED WITH PRE-PROCESSING PART, AND PRE-PROCESSING PART

By providing a pre-processing unit 20A on a processing liquid channel included in a cell capturing apparatus 100, air bubbles accumulate in an introduction region 24 inside of the pre-processing unit 20A and thus the air bubbles are removed while a processing liquid moves through the introduction region 24 and a discharge region 26, even when the air bubbles are contained in the processing liquid. By providing a foreign matter removal filter 23, at least a part of foreign matters (foreign matters that cannot pass through through-holes 21) contained in the processing liquid can be captured and thus the processing liquid from which the foreign matters are removed can be supplied to a cell capturing device 1 at the subsequent stage. Consequently, the supply of the processing liquid with air bubbles mixed toward the vicinity of a filter 57 of the cell capturing device 1 disposed at the stage subsequent to the pre-processing unit 20A is reduced. This allows the process of cell capturing to be carried out with good repeatability.