Wound cleansing apparatus in-situ
First Claim
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1. A multi-component wound dressing for treating a wound using a reduced pressure, comprising:
- a wound covering element adapted to be applied to a surface of the skin to cover the wound, thereby forming a wound space, said wound covering element having at least one connector configured to connect to a pressure reducing device and through which reduced pressure can be applied to the wound;
a sorption unit configured to absorb wound exudate material in the wound space;
a porous member positioned above the sorption unit in a fluid pathway between the sorption unit and the pressure reducing the porous member configured to prevent passage of wound exudate material from the sorption unit into the at least one connector;
wherein the wound dressing is configured such that absorbed wound exudate material, when sequestered by the sorption unit, remains in the wound space until the sorption unit is removed; and
a wound contact layer positioned below the sorption unit.
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Abstract
An apparatus for cleansing wounds, in which wound exudate is removed from a wound bed and selectively cleansed and returned to the wound. The cleansing means 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 associated wound dressing and cleansing means are conformable to the wound, and may have irrigant fluid circulated from a reservoir by a device for moving fluid through a flow path which passes through the dressing and a means for fluid cleansing and back to the dressing.
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Citations
29 Claims
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1. A multi-component wound dressing for treating a wound using a reduced pressure, comprising:
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a wound covering element adapted to be applied to a surface of the skin to cover the wound, thereby forming a wound space, said wound covering element having at least one connector configured to connect to a pressure reducing device and through which reduced pressure can be applied to the wound; a sorption unit configured to absorb wound exudate material in the wound space; a porous member positioned above the sorption unit in a fluid pathway between the sorption unit and the pressure reducing the porous member configured to prevent passage of wound exudate material from the sorption unit into the at least one connector; wherein the wound dressing is configured such that absorbed wound exudate material, when sequestered by the sorption unit, remains in the wound space until the sorption unit is removed; and a wound contact layer positioned below the sorption unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A wound dressing for treating a wound using a reduced pressure, said dressing comprising:
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a wound covering element adapted to be applied to a surface of the skin to cover the wound, thereby forming a sealed wound space, said wound covering element having at least one connector configured to connect to a pressure reducing device and through which reduced pressure can be applied to the wound to provide a sub-atmospheric pressure environment in the wound space, a pressure reducing device configured to connect to the at least one connector; a sorption unit which absorbs wound exudate material in the wound space;
whereinthe absorbed wound exudate material, sequestered by the sorption unit, remains in the wound space until the sorption unit is removed; and the sorption unit, together with the sub-atmospheric pressure environment of the wound space, promotes movement of the wound exudate material to the sorption unit; a porous member positioned above the sorption unit in a fluid pathway between the sorption unit and the pressure reducing device, the porous member configured to prevent the passage of wound exudate from the sorption unit into the at least one connector; and a wound contact layer positioned below the sorption unit.
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Specification