Multi-function dressing structure for negative-pressure therapy

A system for providing negative-pressure therapy to a tissue site, the system comprising:

• a manifold configured to be positioned adjacent to the tissue site;
• a cover configured to be placed over the manifold and sealed to tissue surrounding the tissue site to form a sealed space;
• a negative-pressure source configure to be fluidly coupled to the sealed space;
• and
• a multi-function core configured to be positioned between the manifold and the cover, the multi-function core comprising:
• a wound interface layer configured to be positioned over the manifold;
• a fluid dispersion layer positioned over the wound interface layer;
• an ion removal layer positioned over the fluid dispersion layer;
• a liquid retention layer positioned over the ion removal layer;
• a liquid obstruction layer positioned over the liquid retention layer, and
• an odor removal layer positioned over the liquid obstruction layer.

A method for providing negative-pressure therapy to a tissue site, the method comprising:

• positioning a tissue interface adjacent to the tissue site;
• placing a sealing member over the tissue interface and sealing the sealing member to tissue surrounding the tissue site to form a sealed space;
• fluidly coupling a negative-pressure source to the sealed space;
• positioning a fluid management apparatus between the tissue interface and the sealing member, the fluid management apparatus comprising:
• a contact layer configured to be positioned adjacent to the tissue interface;
• a fluid dispersion layer coupled to the contact layer,
• an ion exchange layer coupled to the fluid dispersion layer;
• a liquid retention layer coupled to the ion exchange layer;
• a liquid blocking layer coupled to the liquid retention layer;
• an odor removal layer coupled to the liquid blocking layer;
• and
• operating the negative-pressure source to draw fluid from the sealed space through the fluid management apparatus and generate a negative pressure in the sealed space.

A method of manufacturing a multi-function core for a negative-pressure dressing, the method comprising:

• forming one or more plurality of fibers in respective workstations of a plurality of workstations;
• disposing the plurality of fibers into a fibrous web in the respective workstations of the plurality of workstations;
• coupling the layers to each other to form a multi-function sheet;
• and
• subdividing the multi-function sheet having the layers into multi-function cores.