Abstract: A fluid chip suitable for a fluid device is disclosed in which an upper surface of a flow passage has another member bonded thereto. The disclosed fluid chip, in which a flow passage is formed, comprises a base material having a top surface forming at least a portion of a bottom surface of a flow passage, and a bonding member which is formed from an elastomer resin and an upper end surface of which is provided in a position higher than the top surface of the base material. The base material has a support post portion which projects from the top surface and defines the height of a side surface of the flow passage, and the support post portion of the base material is embedded in the bonding member.

Abstract: The present application provides: an emulsion production member for dividing a sample into fine droplets and dispersing the fine droplets in a dispersion medium to produce an emulsion; and a sample collection tube and a blood collection tube, each of which is equipped with the emulsion production member. The emulsion production member is provided with: a plug body, a sample injection hole, a sample storage unit, a dispersion medium injection hole, and a dispersion medium storage unit. The emulsion production member is further provided with: a discharge port; a sample flow passage; and a dispersion medium flow passage for connecting the dispersion medium storage unit and the sample flow passage to each other to cause the dispersion medium to flow in order to divide the sample circulating in the sample flow path into fine droplets by means of the dispersion medium.

Abstract: This fluid handling device has a substrate, a film, and a sliding member. The substrate has first flow paths, second flow paths, and partition walls formed between one end of the first flow paths and one end of the second flow paths. The film includes a diaphragm, and is arranged above the substrate such that the diaphragm and the partition walls oppose one another. The sliding member has protrusions formed on the back surface thereof, and is arranged above the film with the back surface facing the film. By sliding on the film the sliding member is able switch alternately between a first state in which the protrusions are arranged so as not to oppose the partition walls, and the diaphragm is sandwiched therebetween, and a second state in which the protrusions are arranged opposing the partition walls, and the diaphragm is sandwiched therebetween.

Abstract: In the present invention, a fluid handling device has: a first substrate made of resin whereon a channel is formed in a first surface; a first film made of resin and joined to the first surface of the first substrate; a second film made of resin a first surface of which is joined to a second surface of the first substrate; and a second substrate made of resin and joined to a second surface of the second film. A recessed part overlapping the channel in a plane view is formed on the surface of the second substrate joined to the second film. The glass transition temperature Tg1s of the first substrate, the glass transition temperature Tg1f of the first film, the glass transition temperature Tg2s of the second substrate, and the glass transition temperature Tg2f of the second film satisfy Tg1s, Tg2s>Tg1f, Tg2f.