Apparatus for aspirating, irrigating and cleansing wounds
First Claim
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1. An apparatus for treating a wound, comprising:
- a wound dressing comprising;
a backing layer having a proximal, wound-facing side and a distal side;
a boss mounted to the backing layer at an opening in the backing layer and protruding distally therefrom;
a porous material having a proximal, wound-facing side and a distal side, the porous material provided on the proximal side of the backing layer;
an adhesive on a periphery of the backing layer, wherein the adhesive is configured to attach the backing layer to skin around the wound; and
a membrane provided on the proximal, wound-facing side of the porous material, the membrane comprising a plurality of apertures configured to contact the wound, wherein the porous material is configured to be in fluid communication with the membrane; and
a first manifold provided on the proximal, wound-facing side of the porous material, wherein the first manifold is configured to be in communication with a distal side of the membrane;
a fluid offtake tube configured to be mounted to the boss and provide fluid communication between a negative pressure source and the wound dressing.
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Abstract
An apparatus for cleansing wounds in which irrigant fluid 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 and a means for fluid cleansing and back to the dressing. The cleansing means (which may be a single-phase, e.g. microfiltration, 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.
1241 Citations
18 Claims
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1. An apparatus for treating a wound, comprising:
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a wound dressing comprising; a backing layer having a proximal, wound-facing side and a distal side; a boss mounted to the backing layer at an opening in the backing layer and protruding distally therefrom; a porous material having a proximal, wound-facing side and a distal side, the porous material provided on the proximal side of the backing layer; an adhesive on a periphery of the backing layer, wherein the adhesive is configured to attach the backing layer to skin around the wound; and a membrane provided on the proximal, wound-facing side of the porous material, the membrane comprising a plurality of apertures configured to contact the wound, wherein the porous material is configured to be in fluid communication with the membrane; and a first manifold provided on the proximal, wound-facing side of the porous material, wherein the first manifold is configured to be in communication with a distal side of the membrane; a fluid offtake tube configured to be mounted to the boss and provide fluid communication between a negative pressure source and the wound dressing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus for treating a wound, comprising:
a wound dressing comprising; a backing layer having a proximal, wound-facing side and a distal side; a reinforcement mounted to the backing layer at an opening in the backing layer and protruding distally therefrom; a porous material having a proximal, wound-facing side and a distal side, the porous material provided on the proximal side of the backing layer; an adhesive on a periphery of the backing layer, wherein the adhesive is configured to attach the backing layer to skin around the wound; a first membrane provided on the proximal, wound-facing side of the porous material, the first membrane comprising a plurality of apertures configured to contact the wound, wherein the porous material is configured to be in fluid communication with the first membrane; and a second membrane provided on the distal side of the porous material and on the proximal, wound-facing side of the backing layer, the second membrane comprising a plurality of apertures, wherein the porous material is configured to be in fluid communication with the second membrane; and a fluid offtake tube configured to extend through the reinforcement and provide fluid communication between the wound dressing and a negative pressure source. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
Specification