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Disposable transdermal drug applicators

  • US 4,865,582 A
  • Filed: 03/17/1988
  • Issued: 09/12/1989
  • Est. Priority Date: 06/05/1987
  • Status: Expired due to Term
First Claim
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1. A transdermal applicator for application to the skin or membrane of a patient and which is electrically powered, comprising:

  • a flexible, non-conductive substrate having a plurality of electrically conductive coated areas, said electrically conductive coated areas including drug reservoir electrodes, said flexible substrate and said electrically conductive coated areas forming a single, substantially flat, flexible member,a plurality of separate drug reservoirs, each having one side in electrical contact with one of said drug reservoir electrodes,said flexible substrate having opposed first and second flat surfaces, and said electrically conductive coated areas being first and second electrically conductive coated areas on said first and second flat surfaces, respectively, and having electrical conductor connecting means for providing electrical connection between said first and second electrically conductive coated areas for each of said plurality of drug reservoirs,at least one power source connected in series with said drug reservoir electrodes,electrical current conditioning means in series with said at least one power source and said drug reservoir electrodes, anda conformal covering in juxtaposition with and enveloping and enclosing at least said substrate and said reservoirs of said drug applicator and leaving uncovered the side of said drug reservoirs opposite said one side.

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