Negative pressure wound therapy dressing with a slitted foam layer
AssigneeKCI Manufacturing Unlimited Company
InventorsChristoph SCHUELL, Audrey SHERMAN, Guido HITSCHMANN, Hironobu ISHIWATARI, Daniel W. DEKRUIF, James A. LUCKEMEYER
Life of this patent
Estimating the term…
Abstract
Apparatuses, dressings, systems, and methods for treating a tissue site with negative pressure. The dressing includes a cover and a tissue interface including a manifold and a film layer. The manifold includes a plurality of slits. The plurality of slits include a first side wall and a second side wall that are deformable between a closed state and an open state. The film layer includes a plurality of fenestrations through a first surface and a second surface of the film layer that are aligned with the plurality of slits of the foam.
Claims27
A dressing for treating a tissue site with negative pressure, the dressing comprising:
- a cover comprising a first surface and a second surface;
- a foam comprising a first surface, a second surface, and a plurality of slits, the first surface of the foam adjacent to the second surface of the cover, the plurality of slits comprising a first side wall and a second side wall extending between the first surface and the second surface of the foam that are deformable between a closed state and an open state, the first side wall in contact with the second side wall in the closed state, and the first side wall separated from the second side wall in the open state;
- and
- a film layer comprising a first surface, a second surface, and a plurality of fenestrations through the first surface and the second surface that are aligned with the plurality of slits of the foam, the first surface of the film layer adjacent to the second surface of the foam.
(canceled)
(canceled)
(canceled)
(canceled)
(canceled)
-26. (canceled)
A tissue interface for treating a tissue site with negative pressure, comprising:
- a manifold layer comprising a plurality of slits, each of the plurality of slits comprising a first side wall and a second side wall;
- and
- a film layer coupled to a surface of the manifold layer and comprising a plurality of fenestrations, each of the plurality of fenestrations including opposing edges positioned flush with the first side wall and the second side wall of the plurality of slits.
A method of treating a tissue site, the method comprising:
- applying a dressing to the tissue site, the dressing comprising:
- a foam comprising a plurality of slits;
- and
- a film layer positioned between the foam and the tissue site, the film layer comprising a plurality of fenestrations configured to align with the plurality of slits of the foam;
- fluidly coupling a negative-pressure source to the dressing;
- and
- actuating the negative-pressure source to apply negative pressure to the dressing, wherein the plurality of slits of the foam are deformed in concert with the plurality of fenestrations of the film layer when the negative pressure is applied to the dressing.
(canceled)
Dependencies are inferred from the claim text.