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    • 63. 发明授权
    • Implantable biomedical sensor device, suitable in particular for
measuring the concentration of glucose
    • 植入式生物医学传感器装置,特别适用于测量葡萄糖浓度
    • US5372133A
    • 1994-12-13
    • US12860
    • 1993-02-03
    • Johannes H. L. Hogen Esch
    • Johannes H. L. Hogen Esch
    • A61B5/07A61B5/00A61B5/145A61B5/1486C12Q1/00G01N27/28G01N27/327
    • A61B5/0031A61B5/14528A61B5/14532A61B5/686C12Q1/001A61B2560/0219Y10S128/903
    • Implantable biomedical sensor device for measuring in vivo the presence and/or concentration of physiological substances, such as the concentration of glucose, in a human or animal body. A miniaturized electronic responder (1) arranged in a closed housing (2) of biocompatible material in an electromagnetic interrogation field is capable of contactlessly exchanging binary coded information with a transmitter/receiver, and includes electrical connections (4, 5, 6) passed through the wall of the housing, at least a work electrode (10), a counter-electrode (8) and preferably also a reference electrode (9) outside the housing. The work electrode includes a membrane (13) with hollow fibers extending transversely to the surface of the membrane and having internal walls coated with a conductive polymer (15) and in which a redox enzyme (16) is disposed. One end of the hollow fibers is in electrical contact with a processing device (20) which converts the signals supplied by the work electrode in operation to binary signals.
    • 可植入的生物医学传感器装置,用于在体内测量人或动物体内生理物质的存在和/或浓度,例如葡萄糖的浓度。 在电磁询问场中布置在生物相容材料的封闭壳体(2)中的小型电子应答器(1)能够与发射器/接收器非接触地交换二进制编码信息,并且包括通过的电连接(4,5,6) 壳体的壁,至少一个工作电极(10),对电极(8),并且优选地还包括在外壳外部的参考电极(9)。 工作电极包括具有横向于膜的表面延伸的中空纤维的膜(13),并且具有涂覆有导电聚合物(15)的内壁,并且其中设置有氧化还原酶(16)。 中空纤维的一端与处理装置(20)电接触,处理装置(20)将工作电极提供的信号转换为二进制信号。
    • 64. 发明授权
    • Deactivating device
    • 停用设备
    • US5254974A
    • 1993-10-19
    • US766922
    • 1991-09-30
    • Paulus RebersTallienco W. H. Fockens
    • Paulus RebersTallienco W. H. Fockens
    • G08B13/24G08B13/14
    • G08B13/242
    • This invention relates to a deactivating device for deactivating shoplifting detection labels of an electronic shoplifting detection system. These labels comprise a resonant circuit with a coil and a capacitor and the deactivating device comprises an antenna circuit comprising an antenna coil tuned with at least one capacitor to the resonant frequency of the resonant circuit. By means of this arrangement, sufficient energy can be induced in a resonant circuit of a label to effect electrical breakdown in the capacitor thereof. According to the invention, the antenna coil of the deactivating device is coupled, on the one hand, to a supply source and, on the other, to earth via a switch. Circuitry is provided for supplying at intervals control pulses to the switch in order to bring the switch into the conductive state. The duration of each control pulse is chosen such that at the end of a control pulse, when the switch returns to the blocking state, the energy necessary for deactivation is stored as magnetic energy in the antenna coil. This energy is subsequently converted into an electromagnetic oscillation when the switch is in the blocking state.