Abstract: A path defines an opening smaller than a cell in a cell capturing apparatus. A negative pressure generating device is connected to the path so as to generate negative pressure within the path. A negative pressure controlling device is connected to the path so as to adjust the negative pressure within the path. A cell is caught at the opening of the path based on the negative pressure. The negative pressure controlling device serves to maintain the negative pressure constant within the path. Even if the negative pressure changes within the path based on drop or rise in the temperature within the path, for example, the negative pressure can be adjusted at a level suitable for the caught cell with the assistance of the negative pressure controlling device. The cell can reliably be kept immobilized at the opening of the path.

Abstract: A feed controlling apparatus that controls feeding of plural minute objects that flow along a channel of a fluid, and receive a predetermined process at a predetermined position, includes a detector that detects whether there is the object at the predetermined position, and a controller that controls feeding of the object to be supplied to the predetermined position based on a detection result by the detector.

Abstract: A device for injecting a substance into a cell includes a flow path through which a cell is transported, a transported-cell detecting unit that detects the cell transported through the flow path, a cell capturing unit that captures the cell detected by the transported-cell detecting unit, a captured-cell detecting unit that detects the cell captured by the cell capturing unit and determines a position of the cell captured, and a substance injecting unit that injects a substance into the cell captured by the cell capturing unit based on the position determined.

Abstract: An apparatus for injecting a substance into a particle includes a chip. The chip includes a base. A charging unit in which the particle is charged, an extracting unit from where the particle with the substance injected therein is extracted, a flow path that connects the charging unit to the extracting unit, and a transporting unit that makes the particle to flow in the flow path from the charging unit to the extracting unit are formed in the base. The substance is inserted in the particle with a needle while the particle is in the flow path.

Abstract: An apparatus for injecting a substance into a cell includes a cell input part to input the cell, a cell output part to output the cell, a flow path that connects the cell input part and the cell output part, wherein the cell flows in the flow path from the cell input part toward the cell output part, a trapping part that is arranged in the flow path and traps the cell that flows in the flow path, and an inserting part that allows to pass a needle that injects the substance into the cell that is trapped at the trapping part. The cell injected with the substance flows in the flow path toward the cell output part and the cell can be retrieved from the cell output part.