A wound dressing including an absorbent core defining opposed proximal and distal surfaces and at least one receptacle formed therein. The at least one receptacle opening at the distal surface of the absorbent core and extending a distance into the thickness of the absorbent core. The at least one receptacle...http://www.google.de/patents/US7223899?utm_source=gb-gplus-sharePatent US7223899 - Wound dressing