Patent ID: 8241660
Filing Date: 2012-08-14
Classification: A61K,A61P

Abstract:
1. A patch, comprising: an outer layer having a top side, an underside and one or more openings between the top side and the underside, the top side facing away from the skin of a user when in use and the underside comprising an adhesive or an adhesive layer on at least a part of the underside in contact with the skin of the user when in use; a first permeable membrane that allows liquid to penetrate into a subjacent swell layer; a swell layer that swells and increases its depth with the addition of water or another liquid; a membrane that separates the swell layer from a subjacent matrix layer; a matrix layer comprising an osmotically active poison-expelling agent; a second permeable membrane that allows the insect poison to penetrate into the matrix layer and which, together with the membrane, fully or partly encases the matrix layer; and a removable protective layer, wherein the outer layer is larger than and covers the first permeable membrane, the swell layer, the membrane, the matrix layer, the second permeable membrane and the removable protective layer and wherein a liquid can be added to one or more subjacent layers through the one or more openings of the outer layer.