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    • 49. 发明申请
    • RESONATOR WITH ADJUSTABLE CAPACITOR FOR MEDICAL DEVICE
    • 具有用于医疗装置的可调节电容器的共振器
    • WO2007024616A2
    • 2007-03-01
    • PCT/US2006/032108
    • 2006-08-17
    • BOSTON SCIENTIFIC SCIMED, INC.WEBER, Jan
    • WEBER, Jan
    • A61F2/82
    • G01R33/286A61B5/055A61F2/82G01R33/3628Y10T29/49117
    • An apparatus, system and method of a resonator device with an adjustable capacitor for allowing the resonance frequency (F) of the resonator device to continue to be matched to the Larmor frequency of the MRI system. The resonator device includes an inductor coil, a conductive member, a sleeve having first and second sockets that receive at least portions of the inductor coil and the conductive member as electrodes to provide a capacitor structure. Dielectric material can be positioned between at least the first and second sockets, where changes in the cross sectional area defined by the induction coil cause changes in the capacitance value (C) as one or more of the electrodes move within the socket. Changes in the inductance and the capacitance values allow for the resonance frequency (F) of the resonator device to continue to be matched to the Larmor frequency of the MRI system.
    • 具有可调电容器的谐振器装置的装置,系统和方法,用于允许谐振器装置的谐振频率(F)继续与MRI系统的拉莫尔频率匹配。 谐振器装置包括电感线圈,导电构件,具有第一和第二插座的套筒,该套管至少容纳电感器线圈和导电构件的至少一部分作为电极以提供电容器结构。 介电材料可以位于至少第一和第二插座之间,其中由感应线圈限定的横截面积的变化引起电容值(C)的变化,因为一个或多个电极在插座内移动。 电感和电容值的变化允许谐振器装置的谐振频率(F)继续与MRI系统的拉莫尔频率匹配。