Burn matrix, method of its preparation and delivery device comprising said matrix
申请人:Key Pharmaceuticals, Inc.
公开号:EP0040862A1
公开(公告)日:1981-12-02
This invention provides a burn matrix comprising glycerol, polyvinylalcohol, a water-soluble polymer having hydration sites which in combination with the remaining ingredients yields a matrix capable of sustained release of a drug dispersed therein, and water. The matrix may further include a drug for topical or transdermal application to a patient. The invention also provides a method of making the matrix and a delivery device incorporating the matrix. The matrix may be used in the form of a package, which comprises the matrix (14) embedded in a backing member (10) provided with a detachable cover layer (12). Before use, the cover layer is removed, and the backing member applied to the patient by means of a pressure-sensitive adhesive layer (26), so that the matrix (14) is held against the skin of the patient.
本发明提供了一种烧伤基质,包括甘油、聚乙烯醇、一种具有水合位点的水溶性聚合物,该聚合物与其余成分结合可产生一种能够持续释放分散在其中的药物的基质,以及水。基质可进一步包括一种药物,供患者局部或透皮使用。本发明还提供了基质的制造方法和含有基质的给药装置。基质可以包装的形式使用,包装包括嵌入基质(14)的背衬件(10),背衬件上有可拆卸的覆盖层(12)。使用前,取下覆盖层,通过压敏胶层(26)将背衬件贴在患者身上,使基质(14)紧贴患者皮肤。