Patent ID: 8906304

Claim:
A sample processing device including a plurality of reaction containers where a series of processing steps are performed by causing reaction of a biological sample with a reagent, each of the reaction containers being provided with a plurality of processing wells arranged in accordance with the series of processing steps performed, the sample processing device comprising: a reaction container set part having the plurality of the reaction containers arranged in parallel thereon; a reaction container movement mechanism configured to move each of the reaction containers set on the reaction container set part independently in an arrangement direction of the processing wells; a stem mechanism having a plurality of stems arranged in a row in a direction crossing a moving direction of the reaction containers above the reaction container set part, and arranged at a first pitch in accordance with a second pitch between the processing wells of the reaction containers arranged in parallel on the reaction container set part, the plurality of stems are used to perform the series of processing steps in cooperation with the movement of respective reaction containers by the reaction container movement mechanism; a stem vertical movement mechanism configured to vertically move the stem mechanism; and a controller configured to interlock the reaction container movement mechanism and the stem vertical movement mechanism for the series of processing steps, and configured to control entry and exit of the corresponding stem or a tool fitted thereto into and out of the processing well when the corresponding processing well of each reaction container is immediately below the stem mechanism in accordance with a processing step of the series of processing steps.