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US 2020/0390609 A1Published application
Foam wound inserts with regions of higher and lower densities, wound dressings, and methods
AssigneeKCI Licensing, Inc.
InventorsTimothy Mark ROBINSON, Paul S. SLACK, Christopher Brian LOCKE, Ben STOKES
Life of this patent
Estimating the term…
Abstract
Foam wound inserts with high-density and low-density regions, methods for making wound inserts, wound-treatment methods, and wound-treatment systems.
Claims21
-6. (canceled)
A wound-treatment method comprising:
- positioning a wound insert on a wound of a patient, the wound insert comprising a foam having high-density regions and low-density regions having a density that is less than the density of the high-density regions;
- and
- coupling a drape to skin adjacent the wound such that the drape covers the wound insert and the wound, and forms a space between the drape and the wound.
A method of making a wound insert, comprising:
- providing a single piece of foam having a first portion and second portion, the first portion having a thickness that is thicker than a thickness of the second portion;
- compressing at least a portion of the foam such that the compressed foam has a substantially constant thickness, and such that the first portion has a density greater than a density of the second portion;
- and
- treating the compressed foam such that the foam remains substantially compressed in the absence of an external compressive force;
- wherein a final compressed thickness of the first portion is substantially equal to an uncompressed thickness of the second portion.
2 more elements
A method of making a wound insert, comprising:
- compressing at least a portion of a foam having thick regions and thin regions such that the foam has a substantially constant thickness, and such that the thick regions have a density greater than a density of the thin regions, the thick regions and the thin regions having substantially the same densities prior to the foam being compressed;
- heating the foam to an elevated temperature sufficient to reduce resiliency of the foam;
- and
- cooling the foam such that the compressed portion remains substantially compressed.
1 more element
A negative-pressure wound therapy system, comprising:
- a foam insert having a high-density region configured to contact a wound, the high-density region compressed to a density between 1.2 and 4 times a pre-compression density of the high-density region;
- and
- a drape configured to be placed over the foam insert and form a sealed space between the drape and the wound.
Dependencies are inferred from the claim text.