Dressing for enhanced radial collapse
AssigneeKCI Manufacturing Unlimited Company
InventorsChristopher Brian LOCKE, Timothy Mark ROBINSON
Life of this patent
Estimating the term…
Abstract
A dressing for treating a tissue site with negative pressure may include a fluid management layer and a manifold layer coupled to the fluid management layer. The manifold layer may have a first surface facing the fluid management layer, a second surface opposite the first surface, and a thickness extending between the first surface and the second surface. The manifold layer may also include collapsible apertures extending at least partially through the thickness of the manifold layer from the first surface. The collapsible apertures may deform in response to a negative pressure applied to the manifold layer.
Claims44
A dressing for treating a tissue site with negative pressure, the dressing comprising:
- a fluid management layer comprising a polymer film having a plurality of fluid restrictions extending through the polymer film and configured to deform;
- and
- a manifold layer coupled to the fluid management layer, the manifold layer having a first surface facing the fluid management layer, a second surface opposite the first surface, and a thickness extending between the first surface and the second surface, the manifold layer comprising a plurality of collapsible apertures extending at least partially through the thickness of the manifold layer from the first surface, the collapsible apertures configured to deform in response to a negative pressure applied to the manifold layer so that an area of the first surface, the second surface, or both, when subjected to negative pressure, is decreased relative to the area of the first surface or the second surface when the manifold layer is not subjected to negative pressure.
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A dressing for treating a tissue site with negative pressure, the dressing comprising:
- a tissue interface layer comprising a polymer film having a plurality of fluid restrictions extending through the polymer film and configured to deform;
- and
- a manifold layer coupled to the fluid management layer, the manifold layer having a first surface facing the fluid management layer, a second surface opposite the first surface, and a thickness extending between the first surface and the second surface, the manifold comprising an expanded foam and configured to exhibit a radial collapse such that the an area of the first surface, the second surface, or both, when the manifold layer is subjected to negative pressure, is decreased relative to the area of the first surface or the second surface when the manifold layer is not subjected to negative pressure.
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Dependencies are inferred from the claim text.