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    • 6. 发明申请
    • MEDICAL DEVICE ELECTRICAL LEAD DESIGN FOR PREVENTING TRANSMITTANCE OF UNSAFE CURRENTS TO A PATIENT
    • 医疗设备电气导线设计,用于防止不安全电流向病人发送
    • WO2008111986A1
    • 2008-09-18
    • PCT/US2007/067309
    • 2007-04-24
    • MEDTRONIC, INC.STONE, Richard, T.
    • STONE, Richard, T.
    • A61N1/37H02H5/04A61B19/00
    • A61N1/05A61B2090/0481A61N1/0534A61N1/0551A61N1/056A61N1/086
    • An electrical lead including a conductor assembly, an electrode, and a thermally sensitive material. The conductor assembly has one or more conductors. The electrode is in electrical communication with one of the conductors and has an outer contact adapted for contacting adjacent body tissue of a patient. The thermally sensitive material is electrically connected between the one conductor and the electrode outer contact, and is configured to exhibit high impedance in the presence of currents considered unsafe to the patient, thereby preventing the unsafe currents from flowing through the thermally sensitive material and through the electrode outer contact potentially causing the adjacent body tissue to increase in temperature to an unsafe level. The unsafe currents cause the thermally sensitive material to increase in temperature, thereby causing the material to transition to a high impedance state.
    • 包括导体组件,电极和热敏材料的电引线。 导体组件具有一个或多个导体。 电极与导体中的一个电连通,并且具有适于接触患者的相邻身体组织的外部接触。 感热材料电连接在一个导体和电极外触点之间,并且被配置为在存在被认为对患者不安全的电流的情况下呈现高阻抗,由此防止不安全电流流过热敏材料并通过 电极外部接触可能导致相邻的身体组织将温度升高到不安全的水平。 不安全的电流导致热敏材料的温度升高,从而导致材料转变到高阻抗状态。