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Device for iontophoretic administration of drugs

  • US 6,442,423 B1
  • Filed: 09/25/2000
  • Issued: 08/27/2002
  • Est. Priority Date: 02/13/1998
  • Status: Expired due to Term
First Claim
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1. A device for iontophoretic administration of charged drugs to the eye comprising:

  • an applicator formed with a receiving portion adapted for holding a replaceable hydrogel carrier loaded with said drug and allowing contact of the carrier with a surface of the eye;

    an electric current generating element, for generating currents not higher than about 1000 μ

    Amp, being electrically coupled to the said receiving portion such that the current once generated passes through the hydrogel carrier in a direction essentially normal to said surface;

    a timing element for activating the electrical current generating element for pre-set periods of time not exceeding 120 seconds; and

    a switch for activating said timing device.

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