Dressings, systems, and methods for treating a wound on a patient's limb employing liquid control
AssigneeKCI Licensing, Inc.
InventorsBenjamin A. Pratt, Christopher Brian Locke
Life of this patent
Estimating the term…
Abstract
Wound dressings, systems, and methods are presented for treating a wound on a patient's limb, such as a venous leg ulcer. The dressings, systems, and methods involve creating airflow within the dressing to vaporize and remove liquid. The airflow may begin when the dressing becomes saturated. The dressings may be used to provide compression and reduced pressure to the wound. Other systems, methods, and dressings are presented herein.
Claims15
A wound dressing for treating a wound on a patient's limb, the wound dressing comprising:
- a tubular sleeve member for receiving the patient's limb;
- wherein the tubular sleeve member comprises:
- an elastic compression member formed as a sleeve having a first side and a second, patient-facing side,
- a fluid-directing member having a first side and a second, patient-facing side, wherein the first side of the fluid-directing member is disposed proximate to the second, patient-facing side of the elastic compression member, and wherein the fluid-directing member is operable to inhibit fluids from flowing through the fluid-directing member, and
- a pathway member having a first side and a second, patient-facing side, wherein the first side of the pathway member is proximate to the second, patient-facing side of the fluid-directing member, wherein the pathway member is operable to transport a fluid under a pressure gradient;
- a pressure source fluidly coupled to the pathway member and configured to force a gas into the pathway member;
- at least one exhaust port fluidly coupled to the pathway member for allowing fluids to exit the wound dressing;
- and
- at least one filter fluidly coupled to the at least one exhaust port for removing odors.
A method of manufacturing a wound dressing for treating a wound on a limb of a patient, the method comprising:
- forming an elastic compression member as a sleeve having a first side and a second, patient-facing side;
- forming a fluid-directing member having a first side and a second, patient-facing side;
- disposing the first side of the fluid-directing member proximate to the second, patient-facing side of the elastic compression member, wherein the fluid-directing member is operable to inhibit fluids from flowing through the fluid-directing member;
- forming a pathway member having a first side and a second, patient-facing side;
- disposing the first side of the pathway member proximate to the second, patient-facing side of the fluid-directing member, wherein the pathway member is operable to transport a fluid under a pressure gradient;
- fluidly coupling a pressure source to the pathway member, the pressure source configured to force a gas into the pathway member;
- fluidly coupling at least one exhaust port to the pathway member for allowing fluids to exit the wound dressing;
- and
- fluidly coupling at least one filter to the at least one exhaust port for removing odors.
Dependencies are inferred from the claim text.