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US 8,785,713 B2Granted
Compositions with reactive ingredients, and wound dressings, apparatuses, and methods
AssigneeKCI Licensing, Inc.
InventorsKz Hong, Shannon C. Ingram, Dmitry Zimnitsky, Justin Alexander Long, Richard M. Kazala, Jr., Hugo Ramirez
Life of this patent
Estimating the term…
Abstract
Wound dressings and wound inserts comprising substantially dry reactive agents, methods of forming wound inserts comprising dry reactive agents, and wound-treatment methods.
Claims22
A wound insert, comprising:
- an open-celled foam configured to be disposed between a wound of a patient and a drape configured to be coupled to skin adjacent the wound;
- and
- a reactive agent disposed within the foam, and configured to be inert in the absence of an activating fluid and to exhibit antimicrobial properties in the presence of an activating fluid;
- wherein the reactive agent is configured to react with water to release hypochlorite ion and/or form hypochlorous acid.
1 more element
A wound dressing comprising:
- a wound insert comprising:
- an open-celled foam configured to be disposed between a wound of a patient and a drape configured to be coupled to skin adjacent the wound;
- a reactive agent disposed within the foam, and configured to be inert in the absence of an activating fluid and to exhibit antimicrobial properties in the presence of an activating fluid;
- wherein the reactive agent is configured to react with water to release hypochlorite ion and/or form hypochlorous acid;
- and
- a biocompatible suspension agent that couples the reactive agent to the foam and optionally at least partially encapsulates the reactive agent;
- and
- a drape configured to be coupled to skin adjacent a wound of a patient.
5 more elements
A wound-treatment apparatus comprising:
- a wound insert comprising
- an open-celled foam configured to be disposed between a wound of a patient and a drape configured to be coupled to skin adjacent the wound;
- a reactive agent disposed within the foam, and configured to be inert in the absence of an activating fluid and to exhibit antimicrobial properties in the presence of an activating fluid;
- wherein the reactive agent is configured to react with water to release hypochlorite ion and/or form hypochlorous acid;
- and
- a biocompatible suspension agent that couples the reactive agent to the foam and optionally at least partially encapsulates the reactive agent;
- a drape configured to be coupled to skin adjacent a wound of a patient;
- and
- a fluid source configured to be coupled to the wound dressing such that the fluid source is actuatable to deliver a fluid to the wound dressing.
6 more elements
A method comprising:
- adding hypochlorite salt particles to a solution such that the solution and hypochlorite salt form a slurry, the solution comprising a polymer and a liquid that is a solvent of the polymer but not a solvent of the hypochlorite salt;
- substantially removing the liquid from the slurry such that at least a portion of the hypochlorite salt particles are at least partially encapsulated by the polymer.
Dependencies are inferred from the claim text.