Wound Dressing System
OwnerMichael Simms Shuler, Brett A. Freedmaninventors
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Abstract
A negative pressure wound therapy (“NPWT”) dressing is formed from a transparent polymer and includes large-diameter passageways through the dressing for providing suction and irrigation to a wound. The NPWT dressing is formed so as to be non-compressible and non-collapsible to provide low resistance and maintain positive surface pressure at low vacuum settings. The NPWT dressing includes a docking port and suction dome for coupling the dressing to a suction source and an irrigation source. The NPWT dressing may be customizable, disposable, and/or expandable to treat a variety of wounds.
Claims20
A disposable dressing system comprising:
- a wound dressing comprising:
- an adhesive layer, the adhesive layer comprising a transparent material coated on a first side with an adhesive material at least at a peripheral edge, wherein the adhesive material is covered by a removable backing paper;
- a wound contact layer, the wound contact layer comprising a transparent polymeric material having a plurality of passageways therethrough;
- and
- a port formed through the adhesive layer to the wound contact layer, an inlet of the port in fluid communication with the plurality of passageways of the wound contact layer,
- wherein the wound contact layer is coupled to the adhesive layer at the port and is otherwise separable from the adhesive layer.
A negative pressure wound therapy system comprising:
- a vacuum source configured to generate sub-atmospheric pressure of −5 mmHg to −90 mmHg;
- a wound interface dressing comprising a non-compressible, low-durometer material that resists collapse under the sub-atmospheric pressure;
- and
- an internal flow distribution structure that maintains tissue-facing surface pressure of +5 mmHg to +100 mmHg,
- wherein the system operates in continuous or intermittent vacuum cycles to preserve tissue perfusion.
Dependencies are inferred from the claim text.