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US 8,241,261 B2Granted
Super-absorbent, reduced-pressure wound dressings and systems
AssigneeKCI Licensing, Inc.
InventorsLarry Tab Randolph, Justin Alexander Long
Life of this patent
Estimating the term…
Abstract
A super-absorbent dressing assembly for use with a reduced-pressure wound treatment system includes a breathable, fluid restricted dry layer for placement against a wound, a super-absorbent layer, and a non-breathable layer, and a drape extending over the non-breathable layer. A reduced-pressure interface is available to fluidly couple the super-absorbent layer to a reduced-pressure subsystem. The super-absorbent dressing assembly preferably supplies a compressive force when placed under reduced pressure. A reduced-pressure treatment system uses a super-absorbent bolster to treat wounds, e.g., linear wounds.
Claims14
A reduced-pressure treatment system for treating a wound, the system comprising:
- a super-absorbent bolster for placing on the patient's epidermis and substantially sized to overlay the wound, the super-absorbent bolster operable to manifold reduced pressure;
- wherein the super-absorbent bolster comprises:
- a breathable, fluid-restricted dry layer having a first surface and a second, inward-facing surface,
- a super-absorbent layer having a first surface and second surface, the second, inward-facing surface of the super-absorbent layer disposed adjacent to the first surface of the breathable dry layer, the super-absorbent layer being configured to become more rigid with the addition of fluid, and
- a non-breathable layer having a first surface and a second surface, the second, inward-facing surface of the non-breathable layer disposed adjacent to the first surface of the super-absorbent layer;
- a sealing subsystem for providing a fluid seal between the super-absorbent dressing bolster and the patient;
- a reduced-pressure subsystem for delivering reduced pressure to the sealing subsystem;
- wherein the sealing subsystem and reduced-pressure subsystem are operable to deliver reduced pressure to the wound;
- and
- wherein the super-absorbent dressing bolster, sealing subsystem, and reduced-pressure subsystem are operable to develop a compressive force.
7 more elements
A system for assisting the healing of a wound on a patient, the system comprising:
- a liquid-controlled super-absorbent bolster assembly for placing on the wound of the patient;
- a sealing subsystem for providing a fluid seal over the super-absorbent bolster assembly and the patient;
- a reduced-pressure subsystem for delivering a reduced pressure to the sealing subsystem;
- and
- wherein the super-absorbent bolster assembly, sealing subsystem, and reduce-pressure subsystem are operable to deliver reduced pressure to the wound, apply a compressive force to the wound, and remove exudate from the wound;
- wherein the super-absorbent bolster assembly is operable to hold more than 250 milliliters of fluid while presenting a dry, inward-facing surface;
- and
- wherein the super-absorbent bolster assembly comprises:
- a breathable, fluid restricted dry layer having a first surface and a second, inward-facing surface and
- a super-absorbent layer having a first surface and second, inward-facing surface, the second, inward-facing surface of the super-absorbent layer disposed adjacent to the first surface of the breathable dry layer,
- wherein the super-absorbent layer is configured to become more rigid with the addition of fluid.
8 more elements
A reduced-pressure treatment system for treating a wound, the system comprising:
- a super-absorbent, liquid-controlled bolster for placing on the patient's epidermis and sized to overlay the wound, the super-absorbent liquid-controlled bolster operable to manifold reduced pressure, wherein the super-absorbent liquid-controlled bolster comprises:
- a breathable, fluid-restricted dry layer having a first surface and a second, inward-facing surface,
- a super-absorbent layer having a first surface and a second, inward-facing surface, the second, inward-facing surface of the super-absorbent layer disposed adjacent to the first surface of the breathable, fluid-restricted dry layer, and
- a non-breathable layer having a first surface and a second, inward-facing surface, the second, inward-facing surface of the non-breathable layer disposed adjacent to the first surface of the super-absorbent layer;
- a sealing subsystem for providing a fluid seal between the super-absorbent liquid-controlled bolster and the patient;
- a reduced-pressure subsystem for delivering reduced pressure to the sealing subsystem;
- a fluid delivery interface for delivering a fluid to the super-absorbent layer, wherein the super-absorbent layer is operable to become more rigid with the addition of the fluid;
- wherein the sealing subsystem and reduced-pressure subsystem are operable to deliver reduced pressure to the wound;
- and
- wherein the super-absorbent liquid-controlled bolster, sealing subsystem, and reduced-pressure subsystem are operable to develop a compressive force.
7 more elements
Dependencies are inferred from the claim text.