Wound dressing and method of use
A system, method, and apparatus are disclosed for dressing a wound. The apparatus comprises a liquid and gas permeable transmission layer, an absorbent layer for absorbing wound exudate, the absorbent layer overlying the transmission layer, a gas impermeable cover layer overlying the absorbent layer and comprising a first orifice, wherein the cover layer is moisture vapor permeable.
1. A wound treatment apparatus comprising a wound dressing, the wound dressing comprising:
a gas impermeable cover layer comprising a fluid passage;
a transmission layer comprising an upper portion and a lower portion, wherein the upper portion comprises a first plurality of openings and the lower portion comprises a second plurality of openings, and wherein the first plurality of openings has larger open area than the second plurality of openings; and
an absorbent layer for absorbing wound exudate, the absorbent layer comprising a through hole positioned beneath the fluid passage of the cover layer.
2. The apparatus of claim 1 , wherein the upper portion of the transmission layer comprises a first filament count and the lower portion of the transmission layer comprises a second filament count, wherein the first filament count is greater than the second filament count.
3. The apparatus of claim 1 , wherein the transmission layer comprises fiber elements extending between the upper portion and the lower portion of the transmission layer.
4. The apparatus of claim 1 , wherein the absorbent layer is positioned above the transmission layer.
5. The apparatus of claim 1 , wherein the transmission layer comprises a knitted layer of at least partially elastomeric material.
6. The apparatus of claim 1 , wherein the transmission layer comprises a 3D fabric material.
7. The apparatus of claim 1 , wherein the wound dressing further comprises a suction port connectable to a source of negative pressure, the suction port positioned above the fluid passage.
8. The apparatus of claim 7 , wherein the suction port further comprises:
a connector portion configured to connect the suction port to a source of negative pressure; and
a sealing surface for sealing the suction port to the cover layer of the wound dressing.
9. The apparatus of claim 1 , further comprising a wound contact layer.
10. The apparatus of claim 1 , wherein the cover layer comprises moisture vapour permeable material.
11. The apparatus of claim 1 , wherein the absorbent layer comprises superabsorbent material.
12. The apparatus of claim 1 , wherein the absorbent layer is in contact with the cover layer.
13. The apparatus of claim 1 , further comprising a source of negative pressure.
14. The apparatus of claim 13 , wherein the source of negative pressure comprises a vacuum pump.
15. A wound treatment apparatus comprising:
a vacuum pump; and
a wound dressing, the wound dressing comprising:
a gas impermeable cover layer comprising a fluid passage;
an absorbent layer for absorbing wound exudate positioned beneath the cover layer and comprising superabsorbent material, wherein the absorbent layer is in contact with the cover layer and comprises a through hole positioned beneath the fluid passage in the cover layer;
a transmission layer positioned beneath the absorbent layer comprising an upper portion and a lower portion, wherein the upper portion comprises a first plurality of openings and the lower portion comprises a second plurality of openings, and wherein the first plurality of openings has larger open area than the second plurality of openings;
a wound contact layer comprising a plurality of apertures positioned beneath the transmission layer; and
a suction port connectable to the vacuum pump, the suction port positioned above the fluid passage, wherein the suction port comprises:
a connector portion configured to fluidly connect the suction port to the vacuum pump; and
a sealing surface for sealing the suction port to the cover layer of the wound dressing.
16. The apparatus of claim 15 , wherein the upper portion of the transmission layer comprises a first filament count and the lower portion of the transmission layer comprises a second filament count, wherein the first filament count is greater than the second filament count.
17. The apparatus of claim 15 , wherein the transmission layer comprises fiber elements extending laterally between the upper portion and the lower portion of the transmission layer.
18. The apparatus of claim 15 , wherein the transmission layer comprises a knitted layer of at least partially elastomeric material.
19. The apparatus of claim 15 , wherein the transmission layer comprises a 3D fabric material.
20. The apparatus of claim 15 , wherein the cover layer comprises moisture vapour permeable material.