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Transdermal drug delivery device with multiple reservoirs

  • US 5,053,001 A
  • Filed: 09/06/1989
  • Issued: 10/01/1991
  • Est. Priority Date: 04/14/1988
  • Status: Expired due to Fees
First Claim
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1. An iontophoretic device comprising in combination:

  • an insulating member having an inner surface positionable adjacent skin of a recipient,a plurality of reservoirs formed in the insulating member, each reservoir including an opening in the inner surface and adapted to contain an ionic drug and terminating in a rim formed at the opening in the inner surface,an outer electrode positioned on the insulating member to be in contact with the drug when the drug is in said reservoirs,a single continuous inner electrode on the inner surface and surrounding each said reservoir and spaced from the rim of each said reservoir to define a gap between the rim and the inner electrode, andmeans for the electrodes being connectable to a field generating means for energizing the electrodes to draw the drug into the skin of the recipient.

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