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Ocular iontophoresis device

  • US 9,238,131 B2
  • Filed: 05/21/2013
  • Issued: 01/19/2016
  • Est. Priority Date: 11/29/2005
  • Status: Expired due to Fees
First Claim
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1. An ocular iontophoresis device for delivering active substances to an eyeball, the ocular iontophoresis device comprising:

  • an active electrode;

    a reservoir having an inlet comprising a rigid material for maintaining a shape of the active electrode and an outlet comprising a flexible material suitable for making contact with the eyeball, the inlet and the outlet each having a respective shape, wherein the area of the inlet shape is greater than the area of the outlet; and

    wherein the outlet defines an application surface adapted to receive a predetermined part of an eyeball surface, wherein an area of the active electrode (“

    Se”

    ) is greater than an area of the application surface (“

    Sa”

    ) to provide an increased electric field intensity by a value proportionate to the ratio “

    Se/Sa”

    , the application surface configured in the shape of at least one of an entire ring, a disk, a portion of a ring, an ellipse, or eye-shaped.

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