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US 12,758,432 B2Granted
Negative-pressure therapy dressing with fluid transport features
AssigneeKCI Manufacturing Unlimited Company
InventorTyler H. Simmons
Life of this patent
Estimating the term…
Abstract
Disclosed embodiments may relate to dressings configured to provide negative-pressure therapy to a tissue site, such as an incision. In some embodiments, the dressing may comprise a manifold and a cover configured to be disposed over the manifold on a tissue site. Some embodiments of the cover may comprise a plurality of fluid transport features, such as channels, on the interior surface of the cover. In some embodiments, the fluid transport features may be configured for capillary action.
Claims28
A negative-pressure dressing for use on a tissue site, comprising:
- a manifold having a first surface and a second surface;
- and
- a cover configured to be disposed over the manifold, wherein the cover comprises:
- an interior surface configured so that at least a portion of the interior surface faces towards the second surface of the manifold,
- an exterior surface,
- a port configured for introduction of negative pressure through the cover, and
- a plurality of fluid transport features on at least a portion of the interior surface configured for capillary action, wherein the plurality of fluid transport features comprise a plurality of channels including a plurality of ridges and a plurality of grooves, wherein the grooves have a hydrophilic coating, and wherein a free end of the ridges do not have the hydrophilic coating.
4 more elements
A negative-pressure dressing for use on a tissue site, comprising:
- an attachment device having a treatment aperture;
- a manifold having a first surface and a second surface and configured for the first surface to be at least partially exposed to the tissue site through the treatment aperture;
- and
- a cover configured to be disposed over the manifold and coupled to the attachment device around the manifold, wherein the cover comprises:
- an interior surface configured with a top cap portion facing towards the second surface of the manifold,
- an exterior surface,
- a port configured for introduction of negative pressure through the cover, and
- a plurality of exudate transport features on at least a portion of the interior surface configured for capillary action, wherein the plurality of exudate transport features comprise a plurality of channels including a plurality of ridges and a plurality of grooves, wherein the grooves have a hydrophilic coating, and wherein a free end of the ridges do not have the hydrophilic coating.
5 more elements
A negative-pressure dressing for use on a tissue site, comprising:
- a fluid-control layer comprising a substantially fluid-impermeable polymer film with a plurality of fluid passages extending through the polymer film;
- a manifold having a first surface, a second surface, and a thickness therebetween, wherein the first surface is disposed adjacent to the fluid-control layer;
- and
- a substantially fluid-impermeable cover configured to be disposed over the manifold, wherein the cover comprises:
- an interior surface configured with at least a portion of the interior surface facing towards the second surface of the manifold,
- an exterior surface,
- a port configured for introduction of negative pressure through the cover, and
- a plurality of liquid channeling features on at least a portion of the interior surface which are configured for capillary action, wherein the plurality of liquid channeling features comprise a plurality of channels including a plurality of ridges and a plurality of grooves, wherein the grooves have a hydrophilic coating, and wherein a free end of the ridges do not have the hydrophilic coating.
5 more elements
An elongate negative-pressure dressing for use on a tissue site, comprising:
- a manifold having a first surface configured to face the tissue site and an opposite second surface;
- and
- a cover configured to be disposed over the manifold, wherein the cover comprises:
- an interior surface configured so that at least a top cap portion of the interior surface faces towards the second surface of the manifold, and
- a plurality of micro-molded features on at least a portion of the interior surface configured for longitudinal fluid transport along an elongate length of the dressing, wherein the plurality of micro-molded features comprise a plurality of ridges and a plurality of grooves, wherein the grooves have a hydrophilic coating, and wherein a free end of the ridges do not have the hydrophilic coating.
2 more elements
Dependencies are inferred from the claim text.