Device for applying a substance to the skin
OwnerArno W. Latzke, Ralf Latzke +1inventors
InventorsArno W. Latzke, Ralf Latzke, Gert Latzke
Life of this patent
Estimating the term…
Abstract
A device and method for applying substances to skin using an absorptive carrier in a laminate support. The support includes a first foam layer having a thickness of about 1 to 6 mm, a second foam layer having a thickness of about 1 to 6 mm bonded to the first foam layer and having a portion removed to house the carrier, and a metal foil between the first foam layer and the carrier housed in the second foam layer. The surface of the second foam layer which faces the skin may be surface texturized or have a fabric laminated thereon. A substance, such as a transdermally absorbable medicinal oil, is applied to the carrier and the carrier is replaceably inserted in the support. The support is then applied to the skin.
Claims14
A device for application of a substrate to skin, comprising at least one absorptive carrier for applying a substrate to skin, and a laminate support housing the carrier comprising:
- a first closed-cell polyethylene foam layer having a thickness of about 1 to 6 mm, said first foam layer including a foil-facing area and a laminate-contacting area defined on a first surface, and an opposite surface;
- a second closed-cell polyethylene foam layer having a thickness of about 1 to 6 mm, said second foam layer including a laminate-contacting surface bonded to said laminate-contacting area of the first foam layer and an opposite, skin-contacting surface, wherein at least one portion of said second foam layer has been removed to define side walls surrounding an area housing the carrier, the housing area being at least as large as the surface area of the carrier;
- and
- a flexible heat-conductive metal foil, said metal foil including a first surface facing said foil-contacting surface of the first foam layer and an opposite surface facing said carrier.
A method of applying a substance to skin, comprising:
- placing the carrier in a laminate support comprising (i) a first closed-cell polyethylene foam layer having a thickness of about 1 to 6 mm, said first foam layer including a foil-facing area and a laminate-contacting area defined on a first surface, and an opposite surface, (ii) a second closed-cell polyethylene foam layer having a thickness of about 1 to 6 mm, said second foam layer including a laminate-contacting surface bonded to said laminate-contacting area of the first foam layer and an opposite, skin-contacting surface, wherein at least one portion of said second foam layer has been removed to define side walls surrounding an area housing the carrier, the housing area being at least as large as the surface area of the carrier, and (iii) a flexible heat-conductive metal foil, said metal foil including a first surface facing said foil-contacting surface of the first foam layer and an opposite surface facing said carrier;
- and
- applying the laminate support housing the carrier to the skin with the skin-contacting surface of the second foam layer facing the skin.
Dependencies are inferred from the claim text.