Abstract: A component measurement device includes: a chip insertion space into which a component measurement chip is insertable; a light emitting unit configured to emit irradiation light to the component measurement chip in a state in which the component measurement chip is located in the chip insertion space; a light receiving unit configured to receive light that has passed through or has been reflected by the component measurement chip; and a control unit configured to detect abnormality of the component measurement chip on a basis of a ratio of (i) a received light intensity in the light receiving unit when irradiation light having a first wavelength is emitted from the light emitting unit to (ii) a received light intensity in the light receiving unit when irradiation light having a second wavelength is emitted from the light emitting unit.

Abstract: A component measurement device for measuring a component of interest in blood on a basis of optical characteristics of a mixture containing a color component produced by a color reaction between the component of interest in the blood and a reagent includes: a first light source configured to emit first irradiation light of a first predetermined wavelength to the mixture; and a second light source configured to emit second irradiation light of a second predetermined wavelength to the mixture, the second irradiation light to be used for estimation of a noise amount contained in a measured value of absorbance of the mixture measured by using the first irradiation light of the first light source, the noise amount being derived other than from the color component.

Abstract: A component measurement apparatus includes: a chip insertion space for inserting a component measurement chip provided with a reagent that reacts with a component to be measured in a sample; a light emitting unit configured to emit radiation light to the component measurement chip in a state in which the component measurement chip is inserted into the chip insertion space; a light receiving unit configured to receive light transmitted through or reflected from the component measurement chip; and a control unit configured to determine whether there is a possibility that an incorrect processing mode has been selected for execution.

Abstract: A component measurement apparatus has a chip insertion space configured to receive a component measurement chip provided with a reagent that reacts with a component to be measured in a sample, and includes: a light emitting unit configured to emit radiation light; a light receiving unit configured to receive the radiation light or light acquired by the radiation light transmitting through or being reflected from the component measurement chip; and a control unit configured to measure the component to be measured in the sample using an actual measurement value of an intensity of received light in the light receiving unit. The control unit is configured such that, when the component measurement chip is inserted into the chip insertion space, the control unit adjusts an amount of the radiation light emitted from the light emitting unit to a predetermined amount of light used in the measurement of the component.

Abstract: A component measurement device for measuring a component of interest in blood based on an optical property of a mixture containing a pigmentary component colored by a color reaction between the component of interest in the blood and a reagent, the component measurement device including: an absorbance obtaining unit configured to obtain a measured value of absorbance of the mixture at a measuring wavelength; and an absorbance correction unit configured to correct the measured value of absorbance of the mixture at the measuring wavelength based on information on scattered light and a ratio between reduced hemoglobin and oxygenated hemoglobin in erythrocytes.

Abstract: A component measurement system (10) includes a test strip (12) that includes a main body portion (20) for holding a sample, and a component measurement device (14) to which the test strip (12) is attached and that optically measures a component contained in the sample. The component measurement device (14) emits measurement light traveling in a thickness direction of the main body portion (20). The main body portion (20) includes a light shielding portion (32) that shields the measurement light, and the light shielding portion (32) includes a measurement opening (34) through which a measurement position (44) of the measurement light is formed on a reaction product of the sample that reacts with a reagent.

Abstract: A component measurement system includes: a measurement tip configured to collect a liquid; and a measurement device configured to measure a component of the liquid by emitting measurement light to the measurement tip. The measurement tip includes: a tip body internally having a detection target region configured to be irradiated with the measurement light, and a printed layer disposed on a surface of the tip body and indicating information relating to a spatial clearance, which is an interval of the detection space along a traveling direction of the measurement light in the detection target region. The measurement device includes: a reading unit configured to read the information relating to the spatial clearance from the printed layer, and a control unit configured to calculate the component of the liquid by using the spatial clearance read by the reading unit.

Abstract: A component measurement device for measuring a component of interest in blood on a basis of optical characteristics of a mixture containing a color component produced by a color reaction between the component of interest in the blood and a reagent includes: a first light source configured to emit first irradiation light of a first predetermined wavelength to the mixture; and a second light source configured to emit second irradiation light of a second predetermined wavelength to the mixture, the second irradiation light to be used for estimation of a noise amount contained in a measured value of absorbance of the mixture measured by using the first irradiation light of the first light source, the noise amount being derived other than from the color component.

Abstract: A component measurement device for measuring a component of interest in blood based on an optical property of a mixture containing a pigmentary component colored by a color reaction between the component of interest in the blood and a reagent, the component measurement device including: an absorbance obtaining unit configured to obtain a measured value of absorbance of the mixture at a measuring wavelength; and an absorbance correction unit configured to correct the measured value of absorbance of the mixture at the measuring wavelength based on information on scattered light and a ratio between reduced hemoglobin and oxygenated hemoglobin in erythrocytes.