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US 10,413,448 B2Granted
Medical dressings, systems, and methods with thermally-enhanced vapor transmission
AssigneeKCI Licensing, Inc.
InventorsBenjamin Andrew Pratt, Christopher Brian Locke, Richard Daniel John Coulthard, Timothy Mark Robinson
Life of this patent
Estimating the term…
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.
Claims35
A dressing comprising:
- a first interface comprising a first thermally-conductive, vapor-permeable material, the first interface configured to be disposed adjacent a tissue site;
- a second interface coupled to the first interface and comprising a second thermally-conductive, vapor-permeable material;
- a processor disposed between the first interface and the second interface, the processor configured to temporarily store liquid and release vapor to the second interface;
- and
- a drape configured to be disposed over the first interface and the second interface, a surface of the drape further configured to contact and be fluidly coupled to a surface of the second interface opposite the processor;
- whereby the first interface is configured to harvest thermal energy from the tissue site, the second interface is configured to receive the thermal energy from the tissue site, and the harvested thermal energy is configured to increase evaporation of liquid from the processor through the drape.
3 more elements
A dressing comprising:
- a first interface configured to be disposed adjacent a tissue site, the first interface being fluid permeable and further configured to harvest thermal energy from the tissue site;
- a processor disposed adjacent to the first interface, the processor configured to receive and store liquid;
- a second interface disposed adjacent to the processor and coupled to the first interface to receive the thermal energy harvested from the tissue site, the second interface being fluid permeable;
- and
- a drape configured to be disposed over the second interface so that a surface of the second interface opposite the processor contacts a surface of the drape, wherein the drape includes a first side facing the second interface and further comprising nano-antennae coupled to a second side of the drape, the nano-antennae configured to receive external energy.
2 more elements
A dressing comprising:
- a first interface configured to be disposed adjacent a tissue site, the first interface being fluid permeable and further configured to harvest thermal energy from the tissue site;
- a processor disposed adjacent to the first interface, the processor comprising a calcium oxide configured to exothermically react with wound exudate to generate heat and wherein the processor is configured to receive and store liquid;
- a second interface disposed adjacent to the processor and coupled to the first interface to receive the thermal energy harvested from the tissue site, the second interface being fluid permeable;
- and
- a drape configured to be disposed over the second interface so that a surface of the second interface opposite the processor contacts a surface of the drape.
2 more elements
A dressing comprising:
- a first interface configured to be disposed adjacent a tissue site, the first interface being fluid permeable and further configured to harvest thermal energy from the tissue site;
- a processor disposed adjacent to the first interface, the processor configured to receive and store liquid;
- a second interface disposed adjacent to the processor and coupled to the first interface to receive the thermal energy harvested from the tissue site, the second interface being fluid permeable;
- a drape configured to be disposed over the second interface so that a surface of the second interface opposite the processor contacts a surface of the drape;
- and
- a piezoelectric member that is operable to provide thermal energy when moved, wherein the piezoelectric member is thermally coupled to the drape.
3 more elements
A dressing comprising:
- a first interface configured to be disposed adjacent a tissue site, the first interface being fluid permeable and further configured to harvest thermal energy from the tissue site;
- a processor disposed adjacent to the first interface, the processor configured to receive and store liquid;
- a second interface disposed adjacent to the processor and coupled to the first interface to receive the thermal energy harvested from the tissue site, the second interface being fluid permeable;
- a drape configured to be disposed over the second interface so that a surface of the second interface opposite the processor contacts a surface of the drape;
- and
- a motion-activated heating element coupled to the drape.
3 more elements
A dressing comprising:
- a first interface configured to be disposed adjacent a tissue site, the first interface being fluid permeable and further configured to harvest thermal energy from the tissue site;
- a processor disposed adjacent to the first interface, the processor configured to receive and store liquid;
- a second interface disposed adjacent to the processor and coupled to the first interface to receive the thermal energy harvested from the tissue site, the second interface being fluid permeable;
- a drape configured to be disposed over the second interface so that a surface of the second interface opposite the processor contacts a surface of the drape;
- one or more baffles on a first side of the drape;
- and
- an air mover configured to deliver air flow across the baffles.
4 more elements
A dressing comprising:
- a first interface configured to be disposed adjacent a tissue site, the first interface being fluid permeable and further configured to harvest thermal energy from the tissue site, the first interface having a first end and a second end;
- a processor disposed adjacent to the first interface, the processor configured to receive and temporarily store liquid;
- a second interface disposed adjacent to the processor and coupled to the first interface to receive the thermal energy harvested from the tissue site, the second interface being fluid permeable and having a first end and a second end;
- a third interface coupling the first end of the first interface to the first end of the second interface, wherein the third interface comprises a first end, a second end, and an elbow extending between the first end of the third interface and the second end of the third interface, the elbow providing a 180 degree turn between the first end of the third interface and the second end of the third interface;
- and
- a drape configured to be disposed over the second interface so that a surface of the second interface opposite the processor contacts a surface of the drape;
- wherein the harvested thermal energy is configured to increase evaporation of liquid from the processor through the drape.
4 more elements
Dependencies are inferred from the claim text.