Laminar wound dressing for controlled release of active substance e.g. platelet derived growth factor, includes layer containing polymer and hydrogel as fluid absorber

摘要

A wound dressing for the controlled release of active substances to wounds while absorbing fluids, especially wound exudate, and swelling has a laminar structure and includes at least one polymer-containing layer with a content of fluid absorber comprising a hydrocolloid-containing swellable hydrogel. The aseptic production of a wound dressing by application of an active substance to a prepared and sterilized carrier is also new. The dressing contains: (a) one or more polymer-containing layers with a content of fluid absorber comprising a hydrocolloid-containing swellable hydrogel; (b) one or more fabric-like or fleece-like layers; and (c) active substance(s). An Independent claim is also included for the production of a wound dressing by: (i) preparing a carrier for an active substance; (ii) sterilizing the prepared carrier; and (iii) applying active substance(s) to the sterilized carrier under aseptic conditions.