Wound interface systems with integral contact surfaces

A dressing for treating a tissue site with negative pressure, comprising:

• a cover having an adhesive;
• a felted foam member having a felted surface, the felted foam member having a first plurality of perforations formed through the felted foam member;
• a perforated gel layer having a treatment aperture;
• wherein the cover, the felted foam member, and the perforated gel layer are assembled in a stacked relationship with the cover and the perforated gel layer enclosing the felted foam member, wherein the felted surface is at least partially exposed through the treatment aperture, and at least some of the adhesive is exposed through the perforated gel layer around the treatment aperture.

A system for treating a tissue site with negative pressure, comprising:

• a dressing configured to be placed adjacent to the tissue site, the dressing comprising:
• a sealing layer comprising a central aperture and a first plurality of perforations around the central aperture,
• a felted foam member having a second plurality of perforations extending through the felted foam member, at least a portion of the felted foam member exposed through the central aperture, and
• a film disposed over the felted foam member and the sealing layer, the film coupled to the sealing layer around the felted foam member;
• and
• a negative-pressure source configured to provide negative pressure to the tissue site through the felted foam member.

A method for manufacturing a dressing, comprising:

• placing a pre-polymer mixture and water into a mold to generate a reaction that produces a foam and an integral film on at least one surface of the foam;
• forming a first plurality of perforations in the integral film of the foam;
• providing a gel layer having a treatment aperture and a second plurality of perforations disposed around the treatment aperture;
• providing a cover with an adhesive disposed on a side of the cover;
• and
• assembling the cover, the foam, and the gel layer in a stacked relationship, wherein the cover and the gel layer encloses the foam, wherein the foam is at least partially exposed through the treatment aperture, and wherein at least some of the adhesive is exposed through some of the second plurality of perforations.