Abstract: A measurement instrument for adequately correcting data in consideration of the deterioration of a reagent used for measurement over time. A deterioration correction data table where the variation of the sensitivity of each reagent from the date of manufacture of the reagent to the expiration date is recorded for each lot is stored in a deterioration correction data storage unit (3b). A bar code including information designating the lot and the date of manufacture is attached to the reagent. A CPU (1) designates the deterioration correction data table corresponding to the lot of the reagent used for measurement according to the reagent information read by the bar code reader of a nozzle derive unit (10), calculates the reagent sensitivity by interpolation on the measurement data with reference to the designated deterioration data table, and corrects the measurement data with respect to the deterioration of the reagent according to the calculated reagent sensitivity.

Abstract: A method of measuring an analyte, comprising a step of measuring a detectable substance by using a reaction system including a formation reaction of the detectable substance based on a chemical reaction of the analyte contained in a sample, wherein a layered inorganic compound is caused to exist in the reaction system including the formation reaction of the detectable substance, whereby high-sensitivity measurement is made possible, the detectable substance can be stabilized to improve accuracy of the measurement, a rate of a chemical reaction is increased to enable quick measurement, and high-sensitivity measurement is made possible even in a reaction system which forms an insoluble substance.

Abstract: A measuring device (1) has, e.g., a voice input portion (27) for a measurer to input an arbitrary comment at a time of measurement, and it allows a voice recognition portion (28) to recognize the measurer's comment inputted by the voice input portion (27) and also allows a recognition result to be stored in a comment storing portion (43) in correlation with information on date and time, thereby storing conditions or the like of the measurer at the time of measurement, together with the measurement data.

Abstract: A measurement instrument for adequately correcting data in consideration of the deterioration with time of a reagent used for measurement. A deterioration correction data table where the variation of the sensitivity of each reagent from the date of manufacture of the reagent to the expiration date is recorded for each lot is stored in a deterioration correction data storage unit (3b). A bar code including information designating the lot and the data of manufacture is attached to the reagent. A CPU (1) designates the deterioration correction data table corresponding to the lot of the reagent used for measurement according to the reagent information read by the bar code reader of a nozzle drive unit (10), calculates the reagent sensitivity by interpolation on the measurement date with reference to the designated deterioration data table, and corrects the measurement data with respect to the deterioration of the reagent according to the calculated reagent sensitivity.

Abstract: A centrifugal separator (4), comprising a drive motor (M1), a rotor (41) rotated by the motor (M1) about a specified axis, and a cubette (42) swingably suspended by the rotor (41), wherein the cubette (42) holds a specimen to be tested, the cubette (42) is rotated according to the rotation of the rotor (41) and takes an inclined attitude to a vertical direction and, in this state, the specimen to be tested is centrifugally separated.

Abstract: A measuring system according to the present invention includes a biosensor 29, a measuring device 54 for assaying a specified component in a biological sample applied to the sensor 29, optional indicating equipment 56 which can be removed from the measuring device 54 and announces a measurement result by the measuring device 54 or the like by voice, and a guide 50 for guiding a target to be measured to the sensor 29. According to this measuring system, it is possible to remove the difficulty of performing locating operations when a blind person or a person having weak eyesight attaches/detached the sensor 29 to/from a connector 13 of the measuring device 54 or applies body fluid such as blood to the end of the sensor 29.

Abstract: A blood testing tool is provided, which can recover blood plasma or blood serum with a high yield without causing hemolysis of blood cells. A recovery porous membrane 1 to be impregnated with blood serum or blood plasma contained in blood and retain it and a separation porous membrane 2 for separating blood cells from the blood are provided. The separation porous membrane 2 is laminated on the recovery porous membrane 1 while satisfying the condition that pores on an upper surface side of the recovery porous membrane have an average pore size that is in a range from 10 to 1000 ?m and is larger than that of pores on a lower surface side of the separation porous membrane, thus providing a blood testing tool according to the present invention.

Abstract: A lancing device according to the present invention includes: a housing; a moving body movable relatively to the housing for forward movement of a needle; a driving mechanism for forward movement of the moving body; a hollow pressing portion at a front end of the housing for contact with a part where a puncture is to be made; and a pump mechanism capable of causing a vacuum to act inside the pressing portion. The pump mechanism is capable of adjusting the vacuum. The pump mechanism includes for example: a moving portion capable of reciprocating in a first direction and a second direction away from the first direction. Preferably, the adjustment of the vacuum is made by changing the number of reciprocations of the moving part in the first and the second directions.

Abstract: A measurement support system includes a measurement device and a management device connected to the measurement device via a communications network. When the measurement device uses consumable materials such as reagents, the management device manages the stock of consumable materials, supplies the consumable materials, and corrects measured data in accordance with the state of the consumable materials. Thus, the measurement support system can reduce the burden on users of the measurement device. The reagents that are used in measurement by a personal measuring instrument (3) located at each of patients' homes (B, C, . . . ) are assigned a reagent ID number beforehand. This reagent ID number and measured data are transmitted to a host computer (1) of a medical institution (A). The host computer (1) determines the stock of reagents based on the consumable material identifier received from the personal measuring instrument (3) and ships the reagents to the patient's home when the stock is running low.

Abstract: A glucose sensor system comprising the steps of using as a sample discriminating parameter a ratio (I/?I) of a measured current value I to the time-differential value of the current value ?I, defining a discrimination function that discriminates whether a sample is blood or control fluid and uses the discriminating parameter as an independent variable, quantitating as a discriminating index a numeric value obtained by substituting a discriminating parameter value into this discrimination function, and automatically discriminating, based on this index, whether the sample is blood or a control fluid, whereby a kind of the sample can be automatically quantitated by measuring electric current when a sensor system is used for quantitating the concentration of an analysis object in the sample.

Abstract: The invention provides a vented analyzing tool including a flow path provided on a substrate so as to move a specimen in a specific direction. The flow path has a predetermined dimension in a widthwise direction orthogonal to the specific direction when viewed thicknesswise of the substrate. The analyzing tool further includes a discharge port through which gas inside the flow path is vented. An edge of the discharge port on an upstream side in the moving direction of the specimen includes a rectilinear portion extending in the widthwise or generally widthwise direction. The flow path is constituted so as to cause a central portion of the specimen in the widthwise direction to move faster than the remaining portion thereof.

Abstract: The present invention relates to a lancing device (1A) that includes a moving member (4) for moving a needle (20b) in an advancing direction (N1) from a standby position to a puncturing position, and also includes a contact portion (36) for contacting with a puncturing target (S). The lancing device (1A) applies a suctioning force to the moving member (4) to move the moving member (4) in a retreating direction so that the moving member (4) is brought to the standby position. The lancing device (1A) is provided with a decompression space (35) which is decompressed for applying the suctioning force to the moving member (4). Preferably, the pressure in the decompression space (35) is reduced to be smaller than the atmospheric pressure by a predetermined value, thereby moving the moving member (4) in the retreating direction.

Abstract: Above a measuring object (2), an LEDs (4) for use in light irradiation and a CMOS area sensor (8) with an image-forming lens (6) interpolated in between are installed. In order to detect the quantity of light from the LEDs (4), a photodetector (10) is further placed. A personal computer (28) carries out a linearizing process which, upon variation of the quantity of light, corrects the output of the area sensor (8) so as to make the output from the area sensor (8) proportional to the output of the photodetector (10), and a light-irregularity correction process which, when a flat plate having even in-plane density is measured as the measuring object (2), corrects the resulting output of each pixel in the area sensor (8) that has been corrected by the linearizing process to have in-plane evenness. It becomes possible to achieve a convenient two-dimensional reflection factor measuring method which does not need any mechanical driving system.

Abstract: The invention provides a lancing apparatus for moving a lancet holder (32) retaining a lancet in a lancing direction (N1) from a standby position to a lancing position together with the lancet so as to cause the lancet to stick into an object. In the lancing apparatus the lancet is inserted into the lancet holder (32) in a retreating direction (N2), thus to be retained by the lancet holder. The lancet holder (32) includes a first member and a second member (33, 34) relatively movable with respect to each other, so that the first and the second members (33), (34) are relatively moved so as to fix the lancet. Preferably, the lancet holder (32) is constructed such that at least either of the first and the second members (33, 34) applies a pressing force to the lancet, so as to fix the lancet.

Abstract: The present invention provides a lancing apparatus (X1) for moving a lancing element (11) in a lancing direction (N1) from a wait position to a lancing position to lance an intended portion with the lancing element (11). The lancing apparatus (X1) includes a first member (31) which is reciprocally movable in the lancing direction (N1) and in a retreating direction (N2) which is opposite from the lancing direction (N1), and a second member (32) which moves along with the lancing element (11) and performs reciprocal movement in the lancing direction (N1) and the retreating direction (N2) in accordance with the movement of the first member (31).

Abstract: A method of measuring an analyte, comprising a step of measuring a detectable substance by using a reaction system including a formation reaction of the detectable substance based on a chemical reaction of the analyte contained in a sample, wherein a layered inorganic compound is caused to exist in the reaction system including the formation reaction of the detectable substance, whereby high-sensitivity measurement is made possible, the detectable substance can be stabilized to improve accuracy of the measurement, a rate of a chemical reaction is increased to enable quick measurement, and high-sensitivity measurement is made possible even in a reaction system which forms an insoluble substance.

Abstract: The present invention provides a blood cell separation membrane for separating blood into serum or plasma and blood cells while preventing hemolysis of the blood cells. Such a blood cell separation membrane can be obtained by impregnating a porous membrane for separating blood cells from blood supplied thereto with a solution containing a hydrophobic aminocarboxylic acid, a protein derived from silk, Tris, TES, ?-aminohexanoic acid, tranexamic acid, or heparin and then drying the membrane.

Abstract: The present invention provides a method for analyzing protein using a Biuret reaction, which can prevent coagulation of protein and an increase of a viscosity of a reaction liquid caused thereby, even when using a sample including protein with a high concentration. A sample including protein is adjusted to be alkaline by adding a sodium hydroxide solution or the like, to which a divalent copper salt and a salt containing a chaotropic ion are added so as to cause a Biuret reaction, and a degree of coloring thereof is measured, thereby analyzing the protein. The chaotropic ion may be, for example, a SCN ion, an I ion, a NO3 ion, a ClO4 ion, a Br ion or a Cl ion.

Abstract: The present invention provides a fructosylamine oxidase which is obtainable by culturing Fusarium proliferatum, and purifying two types of fructosylamine oxidase (FAO) with different substrate specificities from the culture, and which is useful in the measurement of amadori compounds.

Abstract: An analyzer (A) includes a measurer (42) for measuring an electro-physical quantity of a sample, and an acceleration measurer (43) for computing the acceleration of change of the electro-physical quantity such as a current measured by the measurer (42). The fail determination as to whether or not a predetermined condition necessary for performing analysis of the sample is satisfied is made based on the acceleration computed by the acceleration measurer (43). As a result, the fail determination in the analysis process of the sample can be performed accurately.