Abstract: [Problem] To ensure that a fluid is prevented from overflowing from a well and exposing the user to a biohazard. [Solution] A cartridge for use in measuring a component to be measured contained in a fluid includes a recessed well, formed for storing the fluid, the well including: a lower barrel portion that defines a lower space having a closed bottom; and an upper barrel portion that is formed above the lower barrel portion and defines an upper space having an opening on the top end, wherein a step portion is formed between the lower barrel portion and the upper barrel portion, the step portion being formed on an inner wall surface of the well and defining a step that continuously connects the inner wall surface of the lower barrel portion and the inner wall surface of the upper barrel portion.

Abstract: A test kit of the present invention includes an analysis chip and a pipette tip. The pipette tip includes: a first portion coming in contact with an insertion hole hermetic seal when the pipette tip is inserted into a pipette tip insertion portion so as to allow a liquid dispensation port to be positioned at or in the vicinity of a bottom surface of the pipette tip insertion portion; and a second portion positioned closer to the liquid dispensation port side than the first portion. The outer diameter of the second portion is formed to be equal to or greater than the outer diameter of the first portion and any portion between the first portion and the second portion.

Abstract: Supplying a liquid to a detection chip including a housing having an opening portion and internally housing the liquid and including an elastic sheet covering the opening portion and having a penetrating portion providing communicating between the inside and the outside of the housing, specifically by inserting a liquid delivery nozzle to the housing via the penetrating portion and supplying the liquid into the housing in a state where the nozzle is in contact with the elastic sheet so as to close the penetrating portion. The penetrating portion is one of a hole and a notch. One of the maximum length of the opening of the hole and the maximum length of the notch is smaller than the outer diameter of the nozzle at a portion coming in contact with the elastic sheet when the nozzle is inserted to close the penetrating portion when a liquid is supplied into the housing.

Abstract: This pipette tip includes: a first part having an outer diameter which increases gradually from a distal end side toward a proximal end side; a second part in which a taper angle of an outer surface of the second part is smaller than a taper angle of an outer surface of the first part; a third part in which a taper angle of an outer surface of the third part is larger than the taper angle of the outer surface of the first part; and a fourth in which a taper angle of an outer surface of the fourth part is smaller than the taper angle of the outer surface of the third part.

Abstract: To provide an inspection system capable of performing a target biological reaction under temperature conditions suitable for the reaction even with reciprocal liquid feeding. An inspection system including at least: a sensor chip with a flow path having a reaction site for performing biological reactions; a liquid feeder that causes reaction liquid to flow into and out of the flow path; and a first temperature adjuster that adjusts temperature of reaction liquid flowed in the flow path, where the system performs reciprocal liquid feeding by the liquid feeder where some of the reaction liquid flowed in the flow path is caused to flow out of the flow path and to flow in again. The inspection system includes a second temperature adjuster that, during reciprocal liquid feeding, adjusts temperature of the reaction liquid flowed outside the flow path through temperature adjustment of a liquid holding section of the liquid feeder.

Abstract: To provide an inspection cartridge capable of preventing a user from using a blood sample of a wrong vacuum blood collection tube when the user dispenses the blood sample from the vacuum blood collection tube to the inspection cartridge, and a blood inspection device which performs a blood inspection using the same. An inspection cartridge used for performing a blood inspection with a blood inspection device provided with an identifier for identifying an anticoagulant usable in the inspection cartridge.

Abstract: The purpose of the present invention is to provide a detection method which can safely recover a remaining sample from a detection device without causing a biological disaster. In order to achieve at least one of these goals, this detection method involves: a sample collection step for collecting a sample from the sample holding well, and transferring the same to a detection chip; a detection step for detecting the detected substance captured in the detection chip by means of a detection unit; and, after the sample collection step, a remaining sample recovery step for collecting the sample remaining in the sample holding well and transferring this to a sample recovery well. At that time, after the remaining sample recovery step, the surface area of the opening in the sample recovery well is smaller than the surface area of the opening in the sample holding well.

Abstract: A reaction method includes a reaction step of reacting two or more substances with each other by using a pipette tip, attached to a pipette nozzle, for sucking or discharging a liquid to supply a liquid to a reaction field and remove the liquid from the reaction field a plurality of times. The reaction method further includes: a first process of, prior to the reaction step, detecting an end height of the pipette tip and setting a reference height of the pipette nozzle on the basis of the end height of the pipette tip; and a second process of correcting, in a course of the reaction step, the height of the pipette nozzle from the reference height so as to cancel out variation in the end height of the pipette tip due to a change in the temperature of the pipette tip.

Abstract: First, an analytical chip having a prism, a metal film that includes a trapping region having immobilized on the surface thereof a trapping element for trapping a substance to be analyzed, and a mark in which the scatter of emitted plasmon scattered light differs from the scatter of plasmon scattered light emitted from the surrounding region, is disposed in a chip holder. Next, the rear surface of the metal film is irradiated with excitation light, plasmon scattered light emitted from the proximity of the mark is detected, and, on the basis of the detected plasmon scattered light, location information for the trap region is obtained. Next, the portion of the rear surface of the metal film that corresponds to the trap region arranged at the detected location is irradiated with excitation light, and fluorescence emitted by a fluorescent substance is detected.

Abstract: This pipette tip includes: a first part having an outer diameter which increases gradually from a distal end side toward a proximal end side; a second part in which a taper angle of an outer surface of the second part is smaller than a taper angle of an outer surface of the first part; a third part in which a taper angle of an outer surface of the third part is larger than the taper angle of the outer surface of the first part; and a fourth in which a taper angle of an outer surface of the fourth part is smaller than the taper angle of the outer surface of the third part.

Abstract: A sensor chip includes: a transparent support; a metal thin film formed on one surface of the transparent support; and a reaction section in which a ligand is immobilized on an other surface of the metal thin film that is not in contact with the transparent support, wherein the sensor chip also includes a closed space-forming member which forms a closed space such that at least the reaction section is housed in the closed space, and water content in the closed space is adjusted to satisfy: X/Y<10 (?g/mm2) (wherein, X represents the water content in the closed space; and Y represents the surface area of the metal thin film in the closed space).

Abstract: A reaction method includes a reaction step of reacting two or more substances with each other by using a pipette tip, attached to a pipette nozzle, for sucking or discharging a liquid to supply a liquid to a reaction field and remove the liquid from the reaction field a plurality of times. The reaction method further includes: a first process of, prior to the reaction step, detecting an end height of the pipette tip and setting a reference height of the pipette nozzle on the basis of the end height of the pipette tip; and a second process of correcting, in a course of the reaction step, the height of the pipette nozzle from the reference height so as to cancel out variation in the end height of the pipette tip due to a change in the temperature of the pipette tip.

Abstract: The purpose of the present invention is to provide a detection method which can safely recover a remaining sample from a detection device without causing a biological disaster. In order to achieve at least one of these goals, this detection method involves: a sample collection step for collecting a sample from the sample holding well, and transferring the same to a detection chip; a detection step for detecting the detected substance captured in the detection chip by means of a detection unit; and, after the sample collection step, a remaining sample recovery step for collecting the sample remaining in the sample holding well and transferring this to a sample recovery well. At that time, after the remaining sample recovery step, the surface area of the opening in the sample recovery well is smaller than the surface area of the opening in the sample holding well.

Abstract: A test kit of the present invention includes an analysis chip and a pipette tip. The pipette tip includes: a first portion coming in contact with an insertion hole hermetic seal when the pipette tip is inserted into a pipette tip insertion portion so as to allow a liquid dispensation port to be positioned at or in the vicinity of a bottom surface of the pipette tip insertion portion; and a second portion positioned closer to the liquid dispensation port side than the first portion. The outer diameter of the second portion is formed to be equal to or greater than the outer diameter of the first portion and any portion between the first portion and the second portion.

Abstract: A reduction in the inspection accuracy of an inspection system, caused by stray light, is prevented. Provided is an inspection chip for use in an inspection system that detects a subject captured by immunoreaction, the inspection chip including an optical measurement chip having, on a top surface, a reaction field formation surface on which a reaction field for allowing the immunoreaction to occur is formed, and including a prism having a reflected light emission surface that emits reflected light reflected by the reaction field formation surface; and a cartridge in which at least one well that stores a liquid including the subject is formed; wherein the cartridge is not located in a region where a first space and a second space are overlapped under the predetermined assumption.

Abstract: To provide an inspection system capable of performing a target biological reaction under temperature conditions suitable for the reaction even with reciprocal liquid feeding. An inspection system including at least: a sensor chip with a flow path having a reaction site for performing biological reactions; a liquid feeder that causes reaction liquid to flow into and out of the flow path; and a first temperature adjuster that adjusts temperature of reaction liquid flowed in the flow path, where the system performs reciprocal liquid feeding by the liquid feeder where some of the reaction liquid flowed in the flow path is caused to flow out of the flow path and to flow in again. The inspection system includes a second temperature adjuster that, during reciprocal liquid feeding, adjusts temperature of the reaction liquid flowed outside the flow path through temperature adjustment of a liquid holding section of the liquid feeder.

Abstract: Supplying a liquid to a detection chip including a housing having an opening portion and internally housing the liquid and including an elastic sheet covering the opening portion and having a penetrating portion providing communicating between the inside and the outside of the housing, specifically by inserting a liquid delivery nozzle to the housing via the penetrating portion and supplying the liquid into the housing in a state where the nozzle is in contact with the elastic sheet so as to close the penetrating portion. The penetrating portion is one of a hole and a notch. One of the maximum length of the opening of the hole and the maximum length of the notch is smaller than the outer diameter of the nozzle at a portion coming in contact with the elastic sheet when the nozzle is inserted to close the penetrating portion when a liquid is supplied into the housing.

Abstract: [Problem] To ensure that a fluid is prevented from overflowing from a well and exposing the user to a biohazard. [Solution] A cartridge for use in measuring a component to be measured contained in a fluid includes a recessed well, formed for storing the fluid, the well including: a lower barrel portion that defines a lower space having a closed bottom; and an upper barrel portion that is formed above the lower barrel portion and defines an upper space having an opening on the top end, wherein a step portion is formed between the lower barrel portion and the upper barrel portion, the step portion being formed on an inner wall surface of the well and defining a step that continuously connects the inner wall surface of the lower barrel portion and the inner wall surface of the upper barrel portion.

Abstract: [Problem] To provide a sensor chip for SPFS measurement, by which, irrespective of environmental conditions, fluctuations are low in characteristics such as signal, noise, or detection sensitivity, quantitative property can be ensured, and a highly precise and accurate SPFS measurement can be carried out. [Solution] A sensor chip for SPFS measurement which has a dielectric member having been produced by carrying out injection molding of a resin, when viewing from the metal thin film-formed surface side of the dielectric member and taking as b the distance of the side end surface position of the resin inlet to the position on the metal thin film-formed surface that is farthest from the side end surface position of the resin inlet, the center of a ligand immobilization part is located in the area between the 3b/8 position and the 6b/8 position from the side end surface position of the resin inlet.

Abstract: In a detection method, a first pressure within a pipette tip is measured when air is sucked into or expelled from the leading end of the pipette tip in a state where the leading end of the pipette tip and a reference part of a solid are separated. A second pressure within the pipette tip is measured when air is sucked into or expelled from the leading end of the pipette tip in a state where the leading end of the pipette tip and the reference part of the solid are closer than in the first step. After the first step and second step, the position of the leading end of the pipette tip in relation to the reference part is detected on the basis of the difference between the first pressure measured in the first step and the second pressure measured in the second step.