Wound dressing and method of treatment

Abstract

Embodiments disclosed herein are directed to negative pressure treatment systems and wound dressing systems, apparatuses, and methods that may be used for the treatment of wounds. In particular, some embodiments are directed to improved wound dressings comprising an obscuring layer that may hide fluid contained therein. Some embodiments may further comprise one or more viewing windows disposed therethrough so as to enable monitoring or examination of fluids contained therein.

1 .- 50 . (canceled) 
     
     
         51 . A wound dressing comprising:
 an acquisition distribution layer configured to horizontally wick fluid as the fluid is absorbed upward through the wound dressing;   an absorbent layer over the acquisition distribution layer;   a backing layer above the absorbent layer; and   a fluid connector configured to connect the backing layer to a source of negative pressure.   
     
     
         52 . The wound dressing of  claim 51 , wherein the fluidic connector is positioned over an opening in the backing layer. 
     
     
         53 . The wound dressing of  claim 51 , wherein the acquisition distribution layer comprises a mix of cellulosic fibers and composite fibers, the composite fibers comprising a PET core and a PE outer layer. 
     
     
         54 . The wound dressing of  claim 51 , wherein the acquisition distribution layer comprises viscose, polyester, polypropylene, cellulose, polyethylene or a combination of some or all of these materials. 
     
     
         55 . The wound dressing of  claim 51 , wherein the acquisition distribution layer comprises a plurality of fibers, and a majority of the fiber volume extends horizontally. 
     
     
         56 . The wound dressing of  claim 55 , wherein the acquisition distribution layer comprises a plurality of fibers, and 80% to 90% of the fiber volume extends horizontally. 
     
     
         57 . The wound dressing of  claim 51 , wherein the acquisition distribution layer comprises a plurality of fibers, and a majority of the fibers span a distance perpendicular to the thickness of the acquisition distribution layer that is greater than the thickness of the acquisition distribution layer. 
     
     
         58 . The wound dressing of  claim 51 , wherein the absorbent layer comprises a fibrous network and superabsorbing particles within the fibrous network. 
     
     
         59 . The wound dressing of  claim 51 , further comprising a transmission layer between a wound contact layer and the acquisition distribution layer. 
     
     
         60 . The wound dressing of  claim 60 , wherein the transmission layer is configured to vertically wick fluid. 
     
     
         61 . The wound dressing of  claim 60 , wherein the transmission layer comprises a top fabric layer, a bottom fabric layer, and a plurality of filaments extending perpendicularly between said top fabric layer and said bottom fabric layer. 
     
     
         62 . The wound dressing of  claim 62 , wherein a majority of the filaments, by volume, extend vertically. 
     
     
         63 . The wound dressing of  claim 62 , wherein 80% to 90% of the filaments, by volume, extend vertically. 
     
     
         64 . The wound dressing of  claim 62 , wherein a majority of filaments extend upward from the bottom fabric layer and/or downward from the top fabric layer and extend over a length more than half the distance between the top and bottom fabric layers. 
     
     
         65 . The wound dressing of  claim 62 , wherein a majority of the filaments span a distance that is greater in a direction perpendicular to the top and bottom fabric layers than in a direction parallel to the top and bottom fabric layers. 
     
     
         66 . A wound dressing comprising:
 an acquisition distribution layer comprising a plurality of fibers, wherein a majority of the fibers, by volume, extend horizontally;   a wound contact layer below the acquisition distribution layer;   a transmission layer between the wound contact layer and the acquisition distribution layer, wherein transmission layer comprises a plurality of filaments, wherein the majority of the filaments, by volume, extend vertically;   an absorbent layer over the acquisition distribution layer; and   a backing layer above the absorbent layer.   
     
     
         67 . The wound dressing of  claim 66 , wherein 80% to 90% of the plurality of fibers of the acquisition distribution layer, by volume, extend horizontally. 
     
     
         68 . The wound dressing of  claim 66 , wherein 80% to 90% of the plurality of filaments of the transmission layer, by volume, extend vertically. 
     
     
         69 . The wound dressing of  claim 66 , wherein a majority of the fibers of the acquisition distribution layer span a distance perpendicular to the thickness of the acquisition distribution layer that is greater than the thickness of the acquisition distribution layer. 
     
     
         70 . The wound dressing of  claim 66 , wherein a majority of the filaments of the transmission layer span a distance that is greater in a direction perpendicular to the top and bottom fabric layers than in a direction parallel to the top and bottom fabric layers.