Negative pressure wound treatment apparatuses and methods with integrated electronics

A wound dressing apparatus comprising:

• a wound contact layer configured to be positioned in contact with a wound;
• a first area over the wound contact layer comprising:
• a spacer layer;
• and
• an absorbent layer over the spacer layer;
• a second area over the wound contact layer comprising a cassette, the cassette comprising:
• a negative pressure source surrounded by a casing, wherein the negative pressure source comprises a negative pressure source outlet and a negative pressure source inlet comprising an opening configured to communicate negative pressure to the first area;
• an inlet protection mechanism is formed to fit around and surround the opening of the negative pressure source inlet and configured to prevent wound exudate from the wound dressing from passing through the opening of the negative pressure source inlet and to prevent wound exudate from entering the inlet of the negative pressure source;
• wherein the casing is configured to allow fluid communication between the first area and second area;
• wherein the casing comprises:
• a first wound facing surface and an opposite second surface;
• wherein the second surface comprises a vent aperture configured to align with the negative pressure source outlet and a user communication interface comprising a power button and a visual indicator for indicating a condition of the negative pressure source and/or a level of pressure within the wound dressing;
• wherein the first surface comprises an opening for the inlet protection mechanism in fluid communication with the absorbent layer;
• and
• wherein the first area is positioned adjacent to the second area;
• and
• a cover layer configured to cover and form a seal over the wound contact layer, the first area, and the second area.