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Apparatus and method for ensuring compatibility of a reusable iontophoretic controller with an iontophoretic patch

  • US 5,645,526 A
  • Filed: 09/30/1994
  • Issued: 07/08/1997
  • Est. Priority Date: 09/30/1994
  • Status: Expired due to Fees
First Claim
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1. An iontophoretic drug delivery device comprising:

  • a reusable controller having a power source;

    a patch for attaching to the skin of a patient, the patch including electrodes in the form of an anode and a cathode, one of the said anode and said cathode including a reservoir containing an ionizable substance for transcutaneous delivery to the patient, said patch being removably, electrically connectable to said controller for delivering current from the controller to the patch electrodes; and

    means for determining whether the controller is compatible with the patch, the determining means including means for preventing current from the controller from being delivered to said patch electrodes when th epatch is connected to the controller if said controller and patch are deemed incompatible.

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