IP Library Granted Patent US 10,667,955
Granted Patent B2
US 10,667,955 · App. 14/418,908 · Granted Jun 2, 2020

Wound dressing and method of treatment

Inventors: Julie Allen (Hull, GB); Ben Alan Askem (Brough, GB); Sarah Jenny Collinson (Hull, GB); Steven Carl Mehta (Lincoln, GB); Philip Gowans (York, GB); Derek Nicolini (Hull, GB); Mark Russell (Roos, GB); Carol Zagrabski (Cheektowaga, NY)
Assignee: Smith & Nephew PLC
A61F13/00042A61F13/00012A61F13/00017A61F13/00068A61F13/022A61F13/0206A61F13/0209A61F13/0216A61F13/0223A61F13/0266A61M1/0088A61F13/00059A61F2013/00153A61F2013/00182A61F2013/00289
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Quick Facts
Patent No.
US 10,667,955
App. No.
14/418,908
Granted
Jun 2, 2020
Kind
B2
Abstract

Embodiments disclosed herein are directed to negative pressure treatment systems and wound dressing systems, apparatuses, and methods that may be used for the treatment of wounds. In particular, some embodiments are directed to improved wound dressings comprising an obscuring layer that may hide fluid contained therein. Some embodiments may further comprise one or more viewing windows disposed therethrough so as to enable monitoring or examination of fluids contained therein.

Claims (13)

1. A wound dressing comprising:

an acquisition distribution layer;

an absorbent layer over the acquisition distribution layer;

a material layer positioned over the absorbent layer to at least partially visually mask fluid absorbed by the absorbent layer;

a backing layer above the material layer;

a fluidic connector coupled to the backing layer, the fluidic connector configured to connect the backing layer to a source of negative pressure; and

a visual indicator positioned beneath the fluidic connector and contiguous with the fluidic connector when the wound dressing is under negative pressure, wherein the visual indicator enables visibility of fluid absorbed beneath the fluidic connector from above the fluidic connector;

wherein the acquisition distribution layer is configured to horizontally wick the fluid as the fluid is absorbed upward through the wound dressing.

2. The wound dressing of claim 1 , wherein the acquisition distribution layer comprises a plurality of fibers, and a majority of the fibers span a distance perpendicular to a thickness of the acquisition distribution layer that is greater than the thickness of the acquisition distribution layer.

3. The wound dressing of claim 1 , further comprising a wound contact layer positioned below the acquisition distribution layer, wherein the wound contact layer is configured to adhere to healthy skin surrounding a wound when covered by the wound dressing, and wherein the wound contact layer is configured to pass fluid to the acquisition distribution layer through at least one aperture.

4. The wound dressing of claim 1 , wherein the visual indicator comprises a viewing window.

5. The wound dressing of claim 4 , wherein the viewing window is located in an obscuring layer.

6. The wound dressing of claim 1 , wherein the fluidic connector comprises a transparent film layer.

Assignments (6)
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE ADDRESS PREVIOUSLY RECORDED AT REEL: 049420 FRAME: 0895. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Jun 18, 2019
From: SMITH & NEPHEW PLC
To: SMITH & NEPHEW PLC
Reel/Frame 049510/0609 →
ADDRESS CHANGE Recorded Jun 10, 2019
From: SMITH & NEPHEW PLC
To: SMITH & NEPHEW PLC
Reel/Frame 049420/0895 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 27, 2017
From: T.J. SMITH & NEPHEW LIMITED
To: SMITH & NEPHEW PLC
Reel/Frame 043117/0422 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 23, 2016
From: SMITH & NEPHEW MEDICAL LIMITED
To: T.J. SMITH & NEPHEW LIMITED
Reel/Frame 038688/0263 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 23, 2016
From: ZAGRABSKI, CAROL; HARMAC MEDICAL PRODUCTS
To: SMITH & NEPHEW MEDICAL LIMITED
Reel/Frame 038688/0429 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 23, 2016
From: ALLEN, JULIE; ASKEM, BEN ALAN; COLLINSON, SARAH JENNY; MEHTA, STEVEN CARL; GOWANS, PHILIP; NICOLINI, DEREK; RUSSELL, MARK
To: T.J. SMITH & NEPHEW LIMITED
Reel/Frame 038688/0646 →