Devices and methods for encapsulating a portion of a wound dressing with biocompatible coating are disclosed. In some embodiments, a method includes coating a first side of a flexible wound contact layer of the wound dressing with a hydrophobic coating. The first side of the wound contact layer can support a plurality of electronic components. The method can further include coating a second side of the wound contact layer opposite the first side with the hydrophobic coating. The wound contact layer can be formed at least partially from hydrophilic material.

Described herein are dressings for incision management comprising a dressing layer that comprises: an elastic layer such as a hydrocolloid or foam layer; and an absorbent layer coupled, for example by lamination, to the elastic layer and which comprises: (i) from about 45% to about 90% carboxymethyl cellulose fibers; and (ii) from about 10% to about 55% elastic reinforcing fibers. Though the elastic layer may be substantially elastically deformable under tissue treatment conditions and the absorbent layer may be not elastically deformable under tissue treatment conditions, the coupling together of the elastic layer and the absorbent layer may result in a dressing layer, and advantageously a dressing, that is substantially elastically deformable under tissue treatment conditions. Methods for manufacturing such dressings and of eliminating, minimizing, or reducing edema using such dressings are also described herein.

A method of making a wound dressing comprising the steps of: providing an apertured substrate layer; coating the substrate layer with a fluid silicone prepolymer composition; thermally partially curing said silicone prepolymer composition to form a partially cured silicone coating on the substrate; laminating the coated substrate layer to a base layer to form a laminate having said partially cured silicone coating in contact with a surface of the base layer; followed by exposing the laminate to ionizing radiation, to further cure the partially cured silicone coating and to bond the silicone coating to said surface of the base layer. The radiation cure results in strong bonding between the siliconized substrate and incompatible base layers such as polyurethane foams. Also provided are wound dressings obtainable by the process of the invention.

Disclosed is a porous structure including water-soluble chitosan; and a carboxymethyl cellulose-based compound, wherein a weight ratio of the water-soluble chitosan and the carboxymethyl cellulose-based compound is from 65:35 to 25:75, and a process for preparing the same.

A composite material is described, which is of particular use in wound treatment, and to a method for producing said composite material is also described. The composite material has a first foam layer having a first hydrophilic polyurethane foam material, and, in immediate contact therewith, a second foam layer having a second hydrophilic polyurethane foam material, which second hydrophilic foam material is different from the first hydrophilic foam material.

A therapeutic device includes a generally rigid but elastically deformable sheet body including a bridge portion, first and second support portions extending outwardly from the bridge portion in opposite directions along a longitudinal dimension, and adhesive or an adhesion member on a first surface along the bridge portion that is adapted for adhesion to skin of a user above a target site. The therapeutic device also includes first and second projections on the first surface proximate to lateral edges of the sheet body. The sheet body is configured to assume a neutral configuration in which the first and second projections space the bridge portion and the adhesive or the adhesion member apart from the target site by an air gap, a depressed position during affixation of the first surface to the target site, and an adhesion configuration after affixation of the first surface to the target site.

A wound dressing includes a perforated film layer, a hydrophilic foam layer, a drape layer, and superabsorbent projections. The perforated film layer is configured to engage a wound bed and has a first side and a second side, the second side configured to face the wound bed. The hydrophilic foam layer also has a first side and a second side, the second side configured to face the first side of the perforated film layer. The drape layer also has a first side and a second side, the second side configured to face the first side of the hydrophilic foam layer. The hydrophilic foam layer also has a plurality of superabsorbent projections fixed to and extending from the first side of the hydrophilic foam layer towards the second side of the drape layer. The drape layer further has a first drape and a second drape, the first drape comprising an adhesive-coated ring configured to peripherally surround and overlap the second drape.

Wound dressings and wound inserts comprising a porous film layer and at least a channel, wound inserts of forming wound inserts comprising a porous film layer and at least a channel, and wound-treatment wound inserts.

A method may include forming a mesh comprising a plurality of strands meshed together. Each of the plurality of strands may include a polymeric film. The method may include perforating the mesh to form a perforated mesh having one or more perforations. The method may further include texturing the perforated mesh to form at textured and perforated mesh having at least one of a dimple or a channel. A system may include a cover configured to form a seal over the tissue site. The system may also include a reduced-pressure source configured to provide reduced pressure through the cover at the tissue site. The system may further include a tissue interface configured to be disposed underneath the cover at the tissue site. The tissue interface may include a textured mat having a plurality of strands of polymeric film matted together and at least one of a dimple or a channel.

A waterproof composite material that comprises three layers, a top layer, a middle layer, and a bottom layer. The middle layer is made of foam while the top layer and bottom layer can be made from a variety of films. The top layer and the bottom layer are formed in a quilted pattern. The top layer and the bottom layer are bunched up (meaning there is extra material there allowing more stretch). A method of manufacturing the waterproof composite material includes placing the three layers on (or in), stretching the middle layer, and then applying a quilt (or other) pattern (using heat and/or pressure) which causes the quilted pattern on the top layer and the bottom layer. The natural contraction of the middle layer (which was stretched when the composite was formed) causes bunching of the top layer and the bottom layer.