Abstract: A component measuring device includes a calibration member that is slidably disposed in an insertion hole of a chip attachment unit and a biasing member that biases the calibration member toward an insertion port. The calibration member is held by the biasing member at a position where the calibration member blocks the introduction port and a lead-out port and where light from a light emitter is applied to the calibration member when a measuring chip is not inserted in the insertion hole, and slides to a side opposite to the insertion port along with insertion of the measuring chip into the insertion hole so that light from the light emitter is applied to the measuring chip.

Abstract: A blood glucose meter (component measurement apparatus) includes a measurement chip, and an apparatus main body including an insertion hole. The measurement chip includes a pair of plate pieces, a spacer arranged between the pair of plate pieces, and a cavity that can retain blood. A pair of wall portions of the insertion hole, facing each other at a measurement unit and in the vicinity of the measurement unit, is separated from each other with a width smaller than a thickness of the measurement chip in a lamination direction. The spacer elastically deforms by a state in which the pair of plate pieces is pressed by the pair of wall portions and defines a width of the cavity.

Abstract: Provided is a component measuring apparatus configured to determine a functional form that describes wavelength characteristics of a variation attributable to scattering (S (?)). The apparatus then determines unknown one or more coefficients (p, q) based on a first relational expression that involves a variation attributable to absorption (H (?1)) and a group of second relational expressions that do not involve variations attributable to absorption (H (?2a), H (?2b), H (?2c)). The apparatus then corrects an absorbance measured at an arbitrary wavelength (?) using a function where the one or more coefficients (p, q) are applied to the functional form so as to reduce or eliminate at least the effects of scattering of light.

Abstract: Provided is a component measuring apparatus configured to determine a functional form that describes wavelength characteristics of a variation attributable to scattering (S (?)). The apparatus then determines unknown one or more coefficients (p, q) based on a first relational expression that involves a variation attributable to absorption (H (?1)) and a group of second relational expressions that do not involve variations attributable to absorption (H (?2a), H (?2b), H (?2c)). The apparatus then corrects an absorbance measured at an arbitrary wavelength (?) using a function where the one or more coefficients (p, q) are applied to the functional form so as to reduce or eliminate at least the effects of scattering of light.

Abstract: A blood glucose meter (component measurement apparatus) includes a measurement chip, and an apparatus main body including an insertion hole. The measurement chip includes a pair of plate pieces, a spacer arranged between the pair of plate pieces, and a cavity that can retain blood. A pair of wall portions of the insertion hole, facing each other at a measurement unit and in the vicinity of the measurement unit, is separated from each other with a width smaller than a thickness of the measurement chip in a lamination direction. The spacer elastically deforms by a state in which the pair of plate pieces is pressed by the pair of wall portions and defines a width of the cavity.

Abstract: A component measuring device includes a calibration member that is slidably disposed in an insertion hole of a chip attachment unit and a biasing member that biases the calibration member toward an insertion port. The calibration member is held by the biasing member at a position where the calibration member blocks the introduction port and a lead-out port and where light from a light emitter is applied to the calibration member when a measuring chip is not inserted in the insertion hole, and slides to a side opposite to the insertion port along with insertion of the measuring chip into the insertion hole so that light from the light emitter is applied to the measuring chip.

Abstract: Provided is a component measuring apparatus configured to determine a functional form that describes wavelength characteristics of a variation attributable to scattering (S (?)). The apparatus then determines unknown one or more coefficients (p, q) based on a first relational expression that involves a variation attributable to absorption (H (?1)) and a group of second relational expressions that do not involve variations attributable to absorption (H (?2a), H (?2b), H (?2c)). The apparatus then corrects an absorbance measured at an arbitrary wavelength (?) using a function where the one or more coefficients (p, q) are applied to the functional form so as to reduce or eliminate at least the effects of scattering of light.

Abstract: A blood component measuring device includes an irradiation light source configured to emit light at least in a near-infrared region, a light receiver having such sensitivity as to receive light emitted by the irradiation light source, a holding mechanism that holds and fixes a living body part, and an arithmetic device that calculates the concentration of a blood component in the living body part. The calculating means calculates the concentration of the blood component about, of the living body part, a place where the ratio of transmitted light intensity at a first wavelength relatively easily absorbed by hemoglobin and transmitted light intensity at a second wavelength relatively poorly absorbed by hemoglobin is the minimum.

Abstract: A centesis instrument, wherein a patient applies a contact part to a palm, a finger, or an arm in the state of gripping an outer tube by hand and presses the outer tube against its measured portion. A third coiled spring is compressed to increase spring power. When the outer tube reaches a prescribed position, the tip face of the vertical portion of a centesis button reaches a hole part, and a projected part is allowed to be pressed. When the patient presses a button body from a direction perpendicular to the axis of the button body by using a finger at that position, a locking piece is separated from a locking part and the centesis needle of a centesis needle unit is instantaneously projected from the opening part of the contact part to the measured portion by the spring power of the third coiled spring for centesis. Thus, a prescribed amount of blood can be taken out from the measured portion.

Abstract: A body fluid collecting device is used by mounting a tip with a puncture needle and a front end opening at the front end portion thereof for allowing the puncture needle to pass therethrough. The device additionally includes a device body, having a contact part for fitting skin thereto, a tip mounting part having a storage space formed therein capable of storing the tip, a pump for depressurizing the inside of the storage space, and a movable means. The movable means is capable of moving the front end portion of the tip mounting part along a longitudinal direction of the puncture needle, and within a specified range, when the storage space is depressurized by the pump under a condition in which the tip is stored in the storage space, the skin is fitted to the contact part, and the front end opening is sealed.

Abstract: It is an object of the present invention to provide a component measuring instrument with which a predetermined component in blood can be measured securely and in a short time. The component measuring instrument, which is used by mounting therein a chip having a puncture needle, includes: a specimen sampling portion application portion to which a specimen sampling portion to be punctured is applied; a puncturer for moving the puncture needle; pressure reducer for putting the punctured portion of the specimen sampling portion punctured by the puncture needle, together with a containing space for the puncture needle, into a reduced-pressure condition; measurer for measuring the amount of a predetermined component in the blood sampled from the punctured portion; and a chip retracting mechanism for moving the chip in a direction away from the specimen sampling portion while maintaining the reduced-pressure condition generated by the pressure reducer.

Abstract: A centesis instrument, wherein a patient applies a contact part to a palm, a finger, or an arm in the state of gripping an outer tube by hand and presses the outer tube against its measured portion. A third coiled spring is compressed to increase spring power. When the outer tube reaches a prescribed position, the tip face of the vertical portion of a centesis button reaches a hole part, and a projected part is allowed to be pressed. When the patient presses a button body from a direction perpendicular to the axis of the button body by using a finger at that position, a locking piece is separated from a locking part and the centesis needle of a centesis needle unit is instantaneously projected from the opening part of the contact part to the measured portion by the spring power of the third coiled spring for centesis. Thus, a prescribed amount of blood can be taken out from the measured portion.

Abstract: A body fluid collecting device includes a tip with a puncture needle and a front end opening at the front end portion thereof for allowing the puncture needle to pass therethrough. The device additionally includes a device body, having a contact part for fitting skin thereto, a tip mounting part having a storage space formed therein capable of storing the tip, a pump for depressurizing the inside of the storage space, and a movable means. The movable means is capable of moving the front end portion of the tip mounting part along a longitudinal direction of the puncture needle, and within a specified range, when the storage space is depressurized by the pump under a condition in which the tip is stored in the storage space, the skin is fitted to the contact part, and the front end opening is sealed.

Abstract: A body fluid component measuring apparatus capable of accurately measuring a specific component in a body fluid for a short time includes, in a main body, a measuring device for detecting the sampling of a body fluid and measuring a component of the sampled body fluid, and a pump and an electromagnetic valve which constitute an evacuating mechanism. When the sampling of blood is detected, the pump is stopped to release the evacuation state. Another apparatus according to a second aspect includes a pressure detecting means and a notifying device. A puncturing device is operated only when it is decided on the basis of a result of detection by a sensor, that the housing is in an evacuation state, and after the sampling is detected, the evacuation is released and information is notified. A further apparatus according to a third aspect includes a pressure adjusting means for fluctuating the pressure.

Abstract: A component measuring apparatus (body fluid sampling implement in this invention) used by installing a piercing needle therein and allowing blood (body fluid) to be discharged by piercing a blood sampled portion (body fluid sampled portion) with the piercing needle, comprising a body storing the piercing needle and having an opening allowing the piercing needle to pass therethrough and a contact part fixedly installed on the body so as to surround the outer periphery of the opening and pressed by the blood sampled portion when the blood sampled portion is pierced by the piercing needle. The contact part has a function to specify a shape near the blood sampled portion when the blood sampled portion is pressed against the contact portion. In addition, the contact surface (inner surface) of the contact part (3) is tilted so as to near the center axis of the opening toward the opening of the body and formed in the shape of a truncated cone in side view.

Abstract: It is an object of the present invention to provide a component measuring instrument with which a predetermined component in blood can be measured securely and in a short time.

Abstract: A body fluid component measuring apparatus capable of accurately measuring a specific component in a body fluid for a short time is provided.

Abstract: An assembly to be detachably mounted on a body fluid monitoring system is provided. The assembly has a lancet and a device for collecting and detecting a body fluid. The lancet has a puncture needle. In this assembly, the puncture needle is maintained in sterilized conditions until its use, and the sterilization can be conducted with no adverse effects on the detection device. A readily sterilizable lancet unit and a body fluid-collecting and detecting unit adapted for use in such an assembly as well as a body fluid-monitoring system including such an assembly are also provided. The assembly comprises a first housing having a sleeve which movably accommodates the lancet in its interior, and a second housing having the body fluid detection device. The first housing and the second housing share an opening. The lancet is sterilized before the assembly. The body fluid-collecting and detecting section has a body fluid guide on the periphery of the inlet.

Abstract: A body-fluid inspection device, which sticks a skin so as to obtain a fine amount of body fluids and measures ingredients of the body fluids, includes a casing having an opening, a sticking device having a sticking needle that is allowed to protrude from the opening of the casing, and a suction device which places at least portion of a space inside the casing in a reduced-pressure state. Also included are a reduced-pressure releasing device for releasing the space inside the casing from the reduced-pressure state, a chip which is detachably attached to the opening of the casing and is provided with test paper for absorbing the body fluids that have been sucked by the body-fluid suction device, a measuring device for measuring ingredients of the body fluids that have been absorbed by the test paper, and a display device for displaying results of measurements made by the measuring device. The display device is placed on one portion of a surface of the casing.

Abstract: A contraction-extension mechanism type actuator is provided which operates with a small and simple mechanism, offers no hindrance to other work units, adopts a construction capable of fine adjustment, and enables only the leading end of a module to be freely moved while producing virtually no motion of the module itself. These objects are accomplished by a contraction-extension mechanism type actuator which is a joint array formed of a shape-memorizing alloy and provided with a contraction-extension mechanism having shape-controlling heaters integrally attached to the component joints of the array and having the joint array itself serving as its own a drive source.