Abstract: A puncture device includes a puncture needle including an outer needle and an inner tube located in the outer needle; a housing unit accommodating the puncture needle; and a puncture mechanism within the housing unit. The puncture mechanism includes a push-in unit configured to be pushed in with respect to the housing unit, an outer needle slide unit attached to the outer needle, a stopper, an elastic member, a first end of which is fixed to the housing unit and a second end of which is fixed to the outer needle slide unit, and a fixation release unit configured to release the fixation between the push-in unit and the outer needle slide unit and the fixation between the outer needle slide unit and the inner tube.

Abstract: A device for receiving a transmitting unit that is detachably attachable to a sensor unit configured to be placed on a subject to acquire a biosignal of the subject and that acquires bio-information from the biosignal acquired in the sensor unit to transmit the biosignal to an external device. This device has first and second ports on which transmitting units can be placed, and communication sections each provided in a respective one of the ports to carry out communication with the transmitting units mounted on the respective ports. When the transmitting unit is newly mounted on one port, the device acquires transmission data including communication identification information for the transmission from the newly mounted transmitting unit by the communication section of this port and transmits the acquired transmission data to another transmitting unit already mounted on the other port by using the communication section provided in the other port.

Abstract: A puncture device comprising a hollow needle, a fixing portion fixed to the hollow needle, a sheath portion covering a part/entirety of the hollow needle and including a plastically deformable elongating member, a holding portion holding the hollow needle and the sheath portion in an integrated manner, with the holding portion positioned between the tip portion of the hollow needle and the plastically deformable elongating member, a holding release mechanism that releases the holding of the holding portion between the hollow needle and the sheath portion after the hollow needle and the sheath portion puncture the living body. The sheath portion elongates and is held in an elongated condition when the holding portion moves by the holding release mechanism, or when the holding of the hollow needle using the holding portion in an integrated manner is released, and the elastic portion contracts.

Abstract: A puncture device includes a puncture needle having a double structure including an outer needle and an inner tube located in the outer needle; a housing unit accommodating the puncture needle; and a puncture mechanism provided within the housing unit. The puncture mechanism includes a push-in unit configured to be pushed in with respect to the housing unit, an outer needle slide unit attached to the outer needle and configured to slide within the housing unit, a stopper providing releasable fixation between the push-in unit and the outer needle slide unit and releasable fixation between the inner tube inserted into the outer needle and the outer needle slide unit, an elastic member, a first end of which is fixed to the housing unit and a second end of which is fixed to the outer needle slide unit, and a fixation release unit configured to release the fixation between the push-in unit and the outer needle slide unit and the fixation between the outer needle slide unit and the inner tube.

Abstract: To improve user-friendliness, a remaining liquid-medicine amount of a liquid-medicine bag obtained by subtracting a liquid medicine dose administered to a user by driving a dispensing portion from a liquid medicine amount filled in a liquid-medicine bag using the liquid-medicine filling device is displayed on a display portion. Therefore, it is possible to allow a user to recognize the remaining liquid-medicine amount of the liquid-medicine bag and improve user-friendliness.

Abstract: A device for receiving a transmitting unit that is detachably attachable to a sensor unit configured to be placed on a subject to acquire a biosignal of the subject and that acquires bio-information from the biosignal acquired in the sensor unit to transmit the biosignal to an external device. This device has first and second ports on which transmitting units can be placed, and communication sections each provided in a respective one of the ports to carry out communication with the transmitting units mounted on the respective ports. When the transmitting unit is newly mounted on one port, the device acquires transmission data including communication identification information for the transmission from the newly mounted transmitting unit by the communication section of this port and transmits the acquired transmission data to another transmitting unit already mounted on the other port by using the communication section provided in the other port.

Abstract: A correction method of a fluorescence sensor includes a first detection signal acquiring step for acquiring, at a first temperature, a first detection signal using a fluorescence sensor having a temperature detecting function and a temperature adjusting function, a second detection signal acquiring step for acquiring, at a second temperature, a second detection signal when an analyte amount is the same as an analyte amount in the first detection signal acquiring step, a correction coefficient calculating step for calculating, on the basis of the first detection signal and the second detection signal, a correction coefficient for correcting the fluorescent light detection signal, and a correcting step for correcting subsequent detection signals using the correction coefficient and a temperature detection signal.

Abstract: In a bodily fluid component measurement system, the convenience for a subject is improved by achieving reductions in size and weight of a device which is always attached at the position where a sensor is indwelled. A bodily fluid component measurement system includes a sensor unit which is indwelled in the skin of a subject to measure a predetermined bodily fluid component, and a transmission unit which is detachably attached to the subject, and transmits, to a display unit, a measurement signal obtained by the sensor unit. The sensor unit is activated upon receiving power supplied by an electromagnetic wave generated by the transmission unit to measure the bodily fluid component and transmit the measurement signal to the transmission unit.

Abstract: The waterproof property of a bodily fluid component measurement system is improved. A bodily fluid component measurement system according to this invention includes a sensor unit which is indwelled in the skin of a subject and connected to a bodily fluid in the subject to measure a predetermined bodily fluid component, and a transmission unit which is detachably attached to the sensor unit and transmits, to a display unit, a measurement signal obtained by the sensor unit or a calculation result calculated as a concentration of the bodily fluid component in a bodily fluid of the same type as or different type from the bodily fluid based on the measurement signal. The sensor unit measures the bodily fluid component and transmits the measurement signal to the transmission unit by being activated by electromagnetic induction caused by an electromagnetic field generated by the transmission unit.

Abstract: Light components are radiated into a blood vessel from light-emitting diodes (17, 18) for emitting light components having different wavelengths through an optical fiber. Bight components reflected by the blood upon radiation into the blood vessel are received by a photo transistor (19) to detect their reflected light intensities. For example, a minimum value of the reflected light intensity of the light component from the light-emitting diode (18) is obtained from the reflected light intensities detected within a predetermined period of time. A measurement value is calculated using this minimum value and a minimum value of the reflected light intensity of the light component from the corresponding light-emitting diode (17).

Abstract: A flow-velocity sensor probe includes a thermistor for generating heat which is placed in a fluid, and a waterproof resin and a metal piece for easily radiating the heat generated by the thermistor. The flow velocity of the fluid is measured continuously from a change of temperature in the thermistor, and the thermistor is provided in close proximity to the metal piece for transmitting the heat to the fluid.

Abstract: A light beam having a first wavelength (.lambda..sub.1) is applied to the blood from a first light radiation section, while a light beam having a second wavelength (.lambda..sub.2) is applied from second and third light radiation sections different in positions from the first radiation section and from each other to the blood and the respective reflected-light intensity (I.sub.1, I.sub.2, I.sub.3) is detected. A first correction value (X) for correcting the reflected-light intensity ratio (I.sub.2 /I.sub.3) is calculated by a first correction value operation section (40) and a second correction value (C.sub.1) is calculated by a second correction value operation section (42) by use of this first correction value and the reflected-light intensity (I.sub.3). The reflected-light intensity ratio (I.sub.1 /I.sub.2) is corrected by use of this second correction value and an oxygen saturation in the blood is operated based on correlation function by use of the corrected reflected-light intensity ratio (R.sub.s).

Abstract: An optical sensor probe for emitting light into blood and detecting light reflected by the blood, having one end of a first light transmitting member brought into contact with blood flowing through a conduit, and capable of emitting light into the blood in the conduit by introducing the light into the first light transmitting member from the other end thereof. Part of the light emitted into the blood by the first light transmitting member and reflected by the blood is introduced into the second light transmitting member from one end of the same in contact with the blood and is transmitted to a light detecting device. The end of the second light transmitting member is disposed in a side wall of the conduit at a predetermined distance from the end of the first light transmitting member in contact with the blood.