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Publication Number
US-12127913-B2
Publication Date
2024-10-29
Expiration Date
Abstract
An absorbent wound dressing (1) comprising a superabsorbent material (13) that is in fluid communication with the surface of a wound to which the dressing is applied when in use. The superabsorbent material (13) is enclosed in an envelope (14,15) having a wound-facing surface that is knitted or woven from a yarn comprising gelling fibres.
Core Innovation
The invention relates to an absorbent wound dressing in which superabsorbent material is adapted to be in fluid communication with the surface of a wound upon which the dressing is applied. The superabsorbent material is enclosed in an envelope having a non-wound-facing surface and a wound-facing surface.
The wound-facing surface is knitted from a yarn comprising a blend of gelling fibres and non-gelling fibres. In use, the gelling fibres gel to create a non-adherent wound-contact surface, while the envelope structure enables wound fluid to reach and be absorbed by the superabsorbent material.
The enclosed superabsorbent material is a sodium polyacrylate polymer. The document further describes fibre options for the gelling fibres and structural embodiments for skin contact layer and envelope formation, including configurations involving silicone gel layers with an opening or perforations and alternative reverse-sheet formats for the envelope.
Claims Coverage
The independent claims coverage centers on an absorbent wound dressing having a superabsorbent material enclosed in an envelope, with a knitted wound-facing surface formed from a blend of gelling and non-gelling fibres, and the superabsorbent being a sodium polyacrylate polymer. From the provided partial content, one independent claim is explicitly identified.
Fluid communication wound dressing with encapsulated sodium polyacrylate
An absorbent wound dressing comprising a superabsorbent material adapted to be in fluid communication with the surface of a wound, wherein the superabsorbent material is enclosed in an envelope having a non-wound-facing surface and a wound-facing surface, and wherein the superabsorbent material is sodium polyacrylate polymer.
Knitted wound-facing envelope from gelling and non-gelling fibre yarn
The dressing wherein the wound-facing surface is knitted from a yarn comprising a blend of gelling fibres and non-gelling fibres.
Overall, the independent claim(s) require encapsulating a sodium polyacrylate polymer superabsorbent in an envelope whose wound-facing surface is knitted from a yarn blend of gelling fibres and non-gelling fibres to form a wound-contact surface associated with gelling behaviour.
Stated Advantages
Provides a non-adherent wound-contact surface via gelling fibres in use.
Is easier to remove at the wound contact interface.
Reduces superabsorbent particle risk at the wound-contact surface.
Documented Applications
Absorbent wound dressing applied to a wound, where the dressing provides fluid communication between wound surface exudate and enclosed superabsorbent material.
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