Wound dressing and method of use
First Claim
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1. A wound treatment apparatus comprising:
- a wound dressing having a length extending between a first side and an opposing second side and a width extending between a third side and an opposing fourth side, the wound dressing comprising;
an absorbent layer;
at least one lower layer positioned beneath the absorbent layer, the at least one lower layer comprising an array of channels or vias each extending further along the length of the wound dressing than along the width of the wound dressing, each of the channels or vias defining an elongate shape, each elongate shape extending through an entire depth of the at least one lower layer; and
a cover layer overlying the absorbent layer and comprising an orifice configured to communicate negative pressure from a source of negative pressure to a wound site through at least the absorbent layer and the at least one lower layer.
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Abstract
A system, method, and apparatus are disclosed for dressing a wound. The apparatus comprises a liquid and gas permeable transmission layer, an absorbent layer for absorbing wound exudate, the absorbent layer overlying the transmission layer, a gas impermeable cover layer overlying the absorbent layer and comprising a first orifice, wherein the cover layer is moisture vapor permeable.
698 Citations
30 Claims
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1. A wound treatment apparatus comprising:
a wound dressing having a length extending between a first side and an opposing second side and a width extending between a third side and an opposing fourth side, the wound dressing comprising; an absorbent layer; at least one lower layer positioned beneath the absorbent layer, the at least one lower layer comprising an array of channels or vias each extending further along the length of the wound dressing than along the width of the wound dressing, each of the channels or vias defining an elongate shape, each elongate shape extending through an entire depth of the at least one lower layer; and a cover layer overlying the absorbent layer and comprising an orifice configured to communicate negative pressure from a source of negative pressure to a wound site through at least the absorbent layer and the at least one lower layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 29)
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13. A wound treatment apparatus comprising:
a wound dressing having a length extending between a first side and an opposing second side and a width extending between a third side and an opposing fourth side, the wound dressing comprising; a cover layer comprising an orifice; a foam layer positioned beneath the cover layer; and at least one lower layer positioned beneath the foam layer, the at least one lower layer comprising an array of channels or vias each extending further along the length of the wound dressing than along the width of the wound dressing, each of the channels or vias defining an elongate shape, each elongate shape extending through an entire depth of the at least one lower layer; wherein the orifice in the cover layer is configured to communicate negative pressure from a source of negative pressure to a wound site through at least the foam layer and the at least one lower layer. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 30)
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21. A wound treatment apparatus comprising:
a wound dressing comprising; a flexible, perforated wound contact layer; a transmission layer positioned above the wound contact layer; an absorbent layer positioned above the transmission layer; and a cover layer comprising an orifice, the cover layer overlying the wound contact layer, the transmission layer and the absorbent layer; wherein the orifice in the cover layer is configured to communicate negative pressure from a source of negative pressure to a wound site through at least the absorbent layer, the transmission layer and the wound contact layer; and wherein the absorbent layer comprises a through hole situated underneath the orifice. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
Specification