Device for applying a substance to the skin
Patent 4994049 Issued on February 19, 1991. Estimated Expiration Date: 
November 15, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 15, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 1862122 2344021 3026874 3598122 3674027 3777754 3837340 Transdermal delivery of drugs Therapeutic system for administering drugs to the skin Bandage containing attachment post InventorsApplicationNo. 436709 filed on 11/15/1989US Classes:604/307, Adhesively attachable to body424/448, Pressure sensitive adhesive means424/449Transdermal or percutaneousExaminersPrimary: Pellegrino, Stephen C.Assistant: Lewis, Ralph A. Attorney, Agent or FirmForeign Patent References
International ClassA61F 013/02Foreign Application Priority Data1986-08-23 DEAbstractA 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.Field of SearchBandage, pad, or shield placed on body for sustained treatment thereofTreating material supplied to bandage, pad, or shield through conduit connected to remote supply Treating material reservoir broken, cut, pierced, or torn to apply treating material to body Adhesively attachable to body Bandage, pad, shield, or attaching means extendable around body portion CONTROLLED RELEASE THERAPEUTIC DEVICE OR SYSTEM Osmotic or diffusion pumped device or system Pressure sensitive adhesive means Transdermal or percutaneous Bandages with incorporated medicaments | |
