Dressings, Systems, And Methods For Treating A Wound On A Patient's Limb Employing Liquid Control
OwnerBenjamin Andrew PRATT, Christopher Brian LOCKEinventors
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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.
Claims24
-33. (canceled)
A system for treating a wound on a patient's limb, the system comprising:
- a wound dressing comprising a tubular sleeve member, the tubular sleeve member comprising a plurality of pressure compartments, wherein each pressure compartment of the plurality of pressure compartments is operable to form a pressure gradient on a portion of the patient's limb;
- a pressure source fluidly coupled separately to each pressure compartment of the plurality of pressure compartments;
- a controller coupled to the pressure source to control pressure delivery to the plurality of pressure compartments;
- and
- wherein the controller and pressure source are operable to cause a first pressure compartment of the plurality of pressure compartments to compress around the patient's limb, then subsequently a second pressure compartment of the plurality of pressure compartments to compress in order to encourage fluid movement in the patient's limb from proximate the first pressure compartment towards the second pressure compartment.
A method for treating a wound on a patient's limb, the method comprising:
- forming a plurality of pressure compartments on the patient's limb proximate the wound;
- sequentially compressing each pressure compartment in a cephaladic direction;
- and
- flowing air over a majority of the pressure compartments to vaporize and remove liquid.
(canceled)
A system for treating a wound on a patient's limb comprising:
- a tubular sleeve having a plurality of pressure compartments, each pressure compartment of the plurality of pressure compartments being operable to form a pressure gradient on a portion of the patient's limb when the tubular sleeve is disposed on the patient's limb;
- a pressure source fluidly coupled to each pressure compartment of the plurality of pressure compartments;
- and
- a controller coupled to the pressure source and operable to control pressure delivery to successively compress each pressure compartment of the plurality of pressure compartments to encourage fluid movement in the patient's limb.
A wound dressing for treating a wound on a patient's limb, the wound dressing comprising:
- an elastic compression member having a first side and a second side forming a sleeve;
- a fluid-directing member having a first side, a second side, and being operable to inhibit fluids from flowing through the fluid-directing member, wherein the first side is positioned adjacent the second side of the elastic compression member;
- a pathway member having a first side, a second side, and being operable to permit flow of a fluid when the wound dressing is under a pressure gradient, wherein the first side is positioned adjacent the second side of the fluid-directing member;
- an absorbent member having a first side, a second side, and being operable to at least temporarily retain liquids, wherein the first side is positioned adjacent the second side of the pathway member;
- and
- at least one exhaust port fluidly coupled to the pathway member and operable to allow fluids to exit the wound dressing.
Dependencies are inferred from the claim text.