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    • 12. 发明申请
    • MICROCHIP RESERVOIR DEVICES AND FACILITATED CORROSION OF ELECTRODES
    • 微电极储存器件和电极的腐蚀性腐蚀
    • WO0230401A3
    • 2003-01-16
    • PCT/US0142698
    • 2001-10-11
    • MICROCHIPS INC
    • SHEPPARD NORMAN F JRFEAKES CHRISTINA MSANTINI JOHN T JR
    • A61K9/00A61K9/22
    • A61K9/0024A61K9/0009A61K9/0097A61M5/14276A61M2205/0244
    • Methods and devices are provided for enhancing corrosion of an electrode in a biocompatible fluid. The method comprises (1) placing a primary electrode and a counter electrode in an electroconductive biocompatible fluid to form an electrochemical cell; and (2) applying a time-varying potential, through the electrochemical cell, to the primary electrode. In a preferred embodiment, the primary electrode is metal and comprises a reservoir cap of a microchip device for the release of molecules or exposure of device reservoir contents. The potential preferably is characterized by a waveform having a maximum potential effectively anodic to meet or exceed the corrosion potential of the primary electrode. Also, the minimum potential preferably is effectively cathodic to be below the value where redeposition of metal ions on the metal electrode can substantially occur, thereby corroding the metal electrode.
    • 提供了用于增强生物相容性流体中的电极腐蚀的方法和装置。 该方法包括(1)将主电极和对电极放置在导电生物相容性流体中以形成电化学电池; 和(2)通过电化学电池将时变电位施加到初级电极。 在优选实施例中,主电极是金属并且包括用于释放分子的微芯片装置的储存器盖或装置储存器内容物的暴露。 该电位优选的特征在于具有有效地阳极以满足或超过初级电极的腐蚀电位的最大电位的波形。 此外,最小电位优选有效地为阴极,低于金属电极上的金属离子可以基本上发生再沉积,从而腐蚀金属电极的值。