Patent ID: 6726920
Filing Date: 2004-04-27
Classification: A61K

Abstract:
An implantable drug delivery patch for delivery of drug to an internal organ of a subject, comprising:a) a first layer, wherein the first layer is substantially impermeable to a drug; b) a second layer attached to the first layer so as to form a reservoir between the first and second layers, the second layer comprising a portion which is permeable to a drug, wherein, upon placement of the patch on the outer surface of the internal organ, the second layer is disposed between the first layer and the organ surface, and wherein the second layer comprises a membrane which provides for controlled rate of release of drug from the reservoir; wherein at least one layer selected from the group consisting of the first layer and the second layer comprises an adhesive portion that acts as an attachment element adapted for affixing the drug delivery patch to the outer surface of the organ.