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Device for transdermal electrotransport delivery of fentanyl and sufentanil

  • US 6,216,033 B1
  • Filed: 03/17/1998
  • Issued: 04/10/2001
  • Est. Priority Date: 05/22/1996
  • Status: Expired due to Term
First Claim
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1. A patient-worn device for transdermally delivering fentanyl by electrotransport and which allows a patient who is suffering from pain and who is wearing the device to obtain self-administered analgesia, the device comprising:

  • a donor reservoir hydrogel formulation comprised of fentanyl in a form to be delivered solely by electrotransport;

    a counter reservoir;

    a source of electrical power electrically connected to the reservoirs; and

    a control circuit for controlling electrotransport current, the control circuit including a patient-controlled switch which activates the device and wherein the reservoir, the power source and the control circuit deliver solely by electrotransport a dose of about 20 μ

    g to about 60 μ

    g of fentanyl over a predetermined delivery period of up to about 20 minutes and terminate said delivery at the end of said delivery period, and wherein the control circuit allows the patient to self-administer from about 10 to about 100 additional of said doses over a period of 24 hours.

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