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Disposable and/or replenishable transdermal drug applicators and methods of manufacturing same

  • US 4,883,457 A
  • Filed: 06/05/1987
  • Issued: 11/28/1989
  • Est. Priority Date: 08/18/1983
  • Status: Expired due to Term
First Claim
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1. A transdermal drug applicator for application to the skin of a patient which is electrically powered, comprising:

  • a flexible, non-conductive substrate having conductive coated areas which together form a single flexible member said flexible substrate defining first and second surfaces, and said conductive coated areas being on said first surface and forming drug reservoir electrodes, said flexible member being folded at about 180 degrees at each of two opposite ends to form top side and bottom side portions with the conductive coated areas providing electrical conductors between said top side and said bottom side portions, a plurality of separated drug reservoirs in electrical contact with said drug reservoir electrodes at said bottom side portions, a power source, including an electrical circuit, connected to said conductors at said top side portions for providing current to said plurality of drug reservoirs via said conductors and drug reservoir electrodes, electrical current conditioning means in said circuit with said power source and said drug reservoir electrodes, and a covering for said drug applicator enveloping and enclosing said flexible member, said power source and current conditioning means, and said plurality of drug reservoirs leaving a side of said drug reservoirs free for application.

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