Wound cleansing apparatus in-situ
First Claim
Patent Images
1. An apparatus for cleansing wounds, comprising:
- a wound cover configured to be positioned over at least a portion of a wound;
a cleanser positioned between the wound and the wound cover, wherein the cleanser selectively removes materials that are deleterious to wound healing from fluid containing wound exudate;
an inlet for introducing fluid into the wound cover;
an outlet for removing fluid from within the wound cover;
a recirculation path comprising one or more conduits fluidly connecting the outlet to the inlet; and
a moving device for moving fluid containing wound exudate from the wound and to the cleanser and for moving cleansed fluid from the cleanser back to the wound through the recirculation path.
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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
33 Claims
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1. An apparatus for cleansing wounds, comprising:
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a wound cover configured to be positioned over at least a portion of a wound; a cleanser positioned between the wound and the wound cover, wherein the cleanser selectively removes materials that are deleterious to wound healing from fluid containing wound exudate; an inlet for introducing fluid into the wound cover; an outlet for removing fluid from within the wound cover; a recirculation path comprising one or more conduits fluidly connecting the outlet to the inlet; and a moving device for moving fluid containing wound exudate from the wound and to the cleanser and for moving cleansed fluid from the cleanser back to the wound through the recirculation path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus for cleansing wounds, comprising:
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a conformable wound dressing comprising a backing layer capable of forming a seal over at least a portion of the wound; a film configured to define a space beneath the backing layer and an upper surface of the film; a filter configured to be positioned between the wound and the backing layer, the filter configured to retain wound exudate in the space between the film and the backing layer; and an outlet tube for communicating with a vacuum source and applying vacuum to the wound to draw wound exudate into the space between the film and the backing layer. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method of treating a wound, comprising:
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positioning a wound dressing over a wound, the wound dressing comprising a backing layer, so that the backing layer forms a seal around at least a portion of a wound; removing fluid containing wound exudate from the wound; cleansing the wound exudate beneath the wound dressing; and returning the cleansed fluid to the wound. - View Dependent Claims (25, 26, 27)
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28. A method for cleansing wounds, comprising:
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positioning a wound dressing over a wound, the wound dressing comprising a backing layer that forms a seal around at least a portion of the wound and a film beneath the backing layer defining a space between the backing layer and an upper surface of the film capable of containing wound exudate from the wound; removing fluid from the wound using negative pressure; and filtering at least a portion of said fluid to retain wound exudate in the space defined by the film beneath the backing layer. - View Dependent Claims (29, 30, 31, 32, 33)
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Specification