Wound dressing

An apparatus for the treatment of a wound by applying negative pressure to the wound, the apparatus comprising:

• a wound contact layer comprising a plurality of fluid passages through the wound contact layer that allow for fluid to pass there through, wherein the wound contact layer is configured to be in contact with the wound and adhere to skin around the wound;
• a porous layer above the wound contact layer;
• a first flexible layer above the porous layer comprising a flexible film, wherein the first flexible layer comprises an orifice;
• a pump comprising a pump inlet and a pump outlet, wherein the pump inlet is configured to be in a facing relationship with the orifice in the first flexible layer to provide a fluid flow path through the orifice directly into the pump inlet to apply negative pressure to the wound through the porous layer and the wound contact layer and configured to draw fluid from the wound into the porous layer;
• and
• a second flexible layer comprising a flexible film, wherein the second flexible layer is sealed to the first flexible layer to form a chamber enclosing the pump.