Patent ID: 8058499

Claim:
A wound dressing comprising: a liquid-permeable top sheet having a wound facing surface and a back surface, said top sheet having greater permeability to the flow of liquid away from the wound facing surface than to the flow of liquid towards the wound facing surface, thereby blocking or restricting passage of liquid from the back surface to the wound facing surface; a hydrogel layer adjacent to and bonded to the back surface of the top sheet; and an absorbent layer adjacent to the hydrogel layer, on the opposite side of the hydrogel from the back surface of the top sheet; wherein the top sheet is formed from a liquid-impermeable sheet material provided with tapered capillaries, each capillary having a base substantially in the wound facing surface of the top sheet and an apical opening remote from the wound facing surface of the top sheet; wherein the capillaries are substantially in the form of truncated cones; and wherein the hydrogel layer is apertured in register with apertures in the top sheet, wherein said wound dressing maintains a suitably moist wound environment.