Wound cleansing apparatus with heat
First Claim
1. An apparatus for treatment of a wound, comprising:
- a relatively liquid impermeable backing layer capable of forming a relatively fluid-tight seal or closure over a wound;
a member comprising a flexible upper layer, a flexible lower layer, and a plurality of flow pathway arms, each flow pathway arm defining a flow path that is separate along its length from the flow paths defined by the other flow pathway arms, the member being positionable beneath the backing layer, wherein;
the flow pathway arms are interconnected only at a center portion of the member; and
the flow pathway arms each extend in a radial direction from the center portion of the member;
a conduit in fluid communication with the flow pathway arms having an end portion configured to be mounted above the center portion of the member and configured to extend away from the backing layer; and
a plurality of apertures formed in the lower layer the apertures being in communication with said flow pathway arms to provide a flow path between the wound and the member;
wherein;
the upper layer comprises an impervious membrane;
the lower layer is sealed to the upper layer along at least a portion of a length of each of the flow pathway arms so as to provide a relatively fluid tight seal between a portion of the lower layer and a portion of the upper layer.
3 Assignments
0 Petitions
Accused Products
Abstract
An apparatus for cleansing and promoting tissue growth in wounds, in which irrigant fluid optionally containing cell nutrients and/or other physiologically active material from a reservoir connected to a conformable wound dressing and wound exudate from the dressing are recirculated by a device for moving fluid through a flow path which passes through the dressing, a biodegradable scaffold in contact with the wound bed and a means for fluid cleansing and back to the dressing. The apparatus has means for supplying thermal energy to the fluid in the wound. The cleansing means (which may be a single-phase, e.g. micro-filtration, system or a two-phase, e.g. dialytic system) removes materials deleterious to wound healing, and the cleansed fluid, still containing materials that are beneficial in promoting wound healing, is returned to the wound bed. The dressing and a method of treatment using the apparatus.
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Citations
40 Claims
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1. An apparatus for treatment of a wound, comprising:
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a relatively liquid impermeable backing layer capable of forming a relatively fluid-tight seal or closure over a wound; a member comprising a flexible upper layer, a flexible lower layer, and a plurality of flow pathway arms, each flow pathway arm defining a flow path that is separate along its length from the flow paths defined by the other flow pathway arms, the member being positionable beneath the backing layer, wherein; the flow pathway arms are interconnected only at a center portion of the member; and the flow pathway arms each extend in a radial direction from the center portion of the member; a conduit in fluid communication with the flow pathway arms having an end portion configured to be mounted above the center portion of the member and configured to extend away from the backing layer; and a plurality of apertures formed in the lower layer the apertures being in communication with said flow pathway arms to provide a flow path between the wound and the member; wherein; the upper layer comprises an impervious membrane; the lower layer is sealed to the upper layer along at least a portion of a length of each of the flow pathway arms so as to provide a relatively fluid tight seal between a portion of the lower layer and a portion of the upper layer. - View Dependent Claims (2, 34, 37)
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3. An apparatus for treatment of a wound, comprising:
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a relatively liquid impermeable backing layer capable of forming a relatively fluid-tight seal or closure over a wound; a member comprising a flexible upper layer, a flexible lower layer, and a plurality of flow pathway arms, each flow pathway arm defining a flow path that is separate along its length from the flow paths defined by the other flow pathway arms, the member being positionable beneath the backing layer, wherein; the flow pathway arms are interconnected only at a center portion of the member; and the flow pathway arms each extend in a radial direction from the center portion of the member; and a conduit in fluid communication with the flow pathway arms having an end portion configured to be mounted above the center portion of the member and configured to extend away from the backing layer. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 38)
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15. An apparatus for treatment of a wound, comprising:
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a relatively liquid impermeable backing layer capable of forming a relatively fluid-tight seal or closure over a wound, thereby forming a volume of space between the backing layer and the wound; a plurality of elongated fluid flow channels configured to be positioned beneath the backing layer, each elongated fluid flow channel defining a flow path that is separate along its length from the flow paths defined by the other elongated fluid flow channels, the fluid flow channels being formed between a flexible upper layer and a flexible lower layer; and a boss positionable on the upper layer within said volume of space; wherein; each of the plurality of elongated fluid flow channels extends in a radial direction away from the center portion of the plurality of elongated fluid flow channels; and the plurality of elongated fluid flow channels are interconnected only at a center portion of the plurality of elongated fluid flow channels. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 39)
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24. A method of treating a wound, comprising:
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positioning a member comprising a plurality of flow channels over or within a wound, each flow channel defining a flow path that is separate along its length from the flow paths defined by the other flow channels, wherein the channels are interconnected only at a center portion of the member; and
the channels each extend in a radial direction from the center portion of the member;positioning a relatively liquid impermeable backing layer over the member and the wound; forming a relatively fluid-tight seal or closure between the backing layer and healthy skin surrounding the wound; and forming a fluid flow path between the flow channels and a conduit having an end portion mounted above the center portion of the member; and drawing wound exudate away from the wound. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 35, 36, 40)
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Specification