Dressing and method for applying reduced pressure to and collecting and storing fluid from a tissue site

A reduced pressure dressing for applying reduced pressure treatment to a tissue site, the reduced pressure dressing comprising:

• an interface layer adapted to be positioned at the tissue site;
• an absorbent layer in fluid communication with the interface layer to absorb liquid from at least one of the interface layer and the tissue site;
• a non-motor-driven pump in fluid communication with the absorbent layer to deliver a reduced pressure to the tissue site;
• a diverter layer between the absorbent layer and the non-motor-driven pump, the diverter layer including a plurality of apertures to transmit the reduced pressure from the non-motor-driven pump to the absorbent layer;
• a cover positioned over the non-motor-driven pump, the diverter layer, the absorbent layer, and the interface layer to maintain the reduced pressure at the tissue site;
• and
• a liquid-air separator positioned between the diverter layer and the non-motor-driven pump to inhibit liquid from entering the non-motor-driven pump.

A reduced pressure dressing for applying reduced pressure treatment to a tissue site the reduced pressure dressing comprising:

• an interface layer adapted to be positioned at the tissue site;
• an absorbent layer in fluid communication with the interface layer to absorb liquid from at least one of the interface layer and the tissue site;
• a diverter layer adjacent the absorbent layer, the diverter layer formed from a substantially gas-impermeable material, the diverter layer including a plurality of apertures in fluid communication with the absorbent layer to increase an amount of time that the absorbent layer is able to distribute reduced pressure;
• a non-motor-driven pump in fluid communication with the plurality of apertures of the diverter layer to deliver a reduced pressure to the tissue site;
• a cover positioned over the non-motor-driven pump, the diverter layer, the absorbent layer, and the interface layer to maintain the reduced pressure at the tissue site;
• and
• a liquid-air separator positioned between the diverter layer and the non-motor-driven pump to inhibit liquid from entering the non-motor-driven pump.

A reduced pressure dressing for applying reduced pressure treatment to a tissue site, the reduced pressure dressing comprising:

• an interface layer adapted to be positioned at the tissue site;
• a first manifold layer in fluid communication with the interface layer;
• an absorbent layer in fluid communication with the first manifold layer to absorb liquid from at least one of the first manifold layer, the interface layer, and the tissue site;
• a diverter layer formed from a substantially gas-impermeable material, the diverter layer including a plurality of spaced apertures in fluid communication with the absorbent layer;
• a second manifold layer in fluid communication with the diverter layer;
• a non-motor-driven pump in fluid communication with the second manifold layer to deliver a reduced pressure to the tissue site;
• a cover positioned over the non-motor-driven pump, the second manifold layer, the diverter layer, the absorbent layer, the first manifold layer, and the interface layer to maintain the reduced pressure at the tissue site;
• and
• a liquid-air separator positioned between the second manifold and the non-motor-driven pump to inhibit liquid from entering the non-motor-driven pump.