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Switch for iontophoresing cation and anion

  • US 4,792,702 A
  • Filed: 10/07/1987
  • Issued: 12/20/1988
  • Est. Priority Date: 10/11/1986
  • Status: Expired due to Fees
First Claim
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1. A switch directed to use in a low-frequency oscillator to iontophorese 6-[2-[(5-bromo-2-pyridyl) amino] vinyl]-1-ethyl-2-picolinium iodide into the scalp, comprising:

  • an on/off switch to control a power circuit of an iontophoretic low-frequency oscillator;

    a selector switch to reverse an output current from said iontophoretic low-frequency oscillator in such manner that a positive potential and a negative potential energize an electrode containing 6-[2-[(5-bromo-2-pyridyl) amino] vinyl]-1-ethyl-2-picolinium iodine at a duration ratio of 1;

    2 or 1;

    3 during one selection cycle; and

    a rotary member actuating said on/off- and selector-switches when turned.

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