Medical dressings, systems, and methods with thermally-enhanced vapor transmissions
AssigneeKCI Licensing, Inc.
InventorsBenjamin A. Pratt, Christopher Brian Locke, Richard Daniel John Coulthard, Timothy Mark Robinson
Life of this patent
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Abstract
Wounds dressings, systems, and methods are presented that involve using a patient's body heat to enhance liquid removal from the wound dressing through a high-moisture-vapor-transmission-rate drape. Additional heat sources or devices, such as nano-antennas or electrical heating elements, may be added or used separately to enhance the removal liquid from the wound dressing. Other dressings, systems, and methods are presented herein.
Claims41
A wound dressing comprising:
- a high-moisture-vapor-transmission-rate drape having a first side and a second, patient-facing side;
- a thermally-conductive, vapor-permeable member comprising:
- a drape-interface member having a first side and a second, patient-facing side, wherein the first side of the drape-interface member is proximate the second, patient-facing side of the high-moisture-vapor-transmission-rate drape,
- a patient-interface member having a first side and a second, patient-facing side, wherein the second, patient-facing side of the patient-interface member is proximate to the patient, and
- a coupling member that thermally couples the drape-interface member and the patient-interface member;
- a liquid-processing member disposed between the drape-interface member and the patient-interface member, wherein the liquid-processing member is operable to at least temporarily retain liquids from the wound;
- and
- wherein the thermally-conductive, vapor-permeable member is operable to conduct body heat from the patient to the high-moisture-vapor-transmission-rate drape to enhance transmission of vapor through the high-moisture-vapor-transmission-rate drape.
A method for treating a wound on a patient, the method comprising:
- covering the wound with a wound dressing comprising:
- a high-moisture-vapor-transmission-rate drape having a first side and a second, patient-facing side,
- a thermally-conductive, vapor-permeable member, and
- a liquid-processing member;
- and
- conducting heat from the patient's body to the high-moisture-vapor-transmission-rate drape through the thermally-conductive, vapor-permeable member to enhance vapor transmission.
-39. (canceled)
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A method of manufacturing a wound dressing, the method comprising:
- providing a thermally-conductive, vapor-permeable member comprising:
- a drape-interface member having a first side and a second, patient-facing side,
- a patient-interface member having a first side and a second, patient-facing side, wherein the second, patient-facing side of the patient-interface member is for placing proximate to a patient, and
- a coupling member thermally coupling the drape-interface member and the patient-interface member;
- disposing a liquid-processing member between the drape-interface member and the patient-interface member, wherein the liquid-processing member is operable to at least temporarily retain liquids from a wound;
- and
- disposing a high-moisture-vapor-transmission-rate drape having a first side and a second, patient-facing side over the thermally-conductive, vapor-permeable member, wherein the first side of the drape-interface member is proximate the second, patient-facing side of the high-moisture-vapor-transmission-rate drape.
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Dependencies are inferred from the claim text.