A binder layer for a laminated wound dressing is brought into contact with a sheet coated with a pattern-coated adhesive sheet. As the binder layer is in contact with the pattern-coated adhesive sheet, a series of closed-loop cuts are made in the binder layer. The closed-loop cuts are made in such a way that the material enclosed by each closed loop is substantially physically separated from the remainder of the binder layer. Then the binder layer is moved away from the pattern-coated adhesive sheet, so that the binder layer and the pattern-coated adhesive sheet are no longer in contact. When the binder layer and the pattern-coated adhesive sheet are moved apart, the material enclosed in the closed-loop cuts—i.e., the cut waste fragments—are retained on the pattern-coated adhesive sheet, ensuring that the binder layer includes a series of cleared perforations.

The illustrative embodiments described herein are directed to an apparatus, system, and method for storing liquid from a tissue site. The apparatus may include a drape having an aperture, and a fluid pouch coupled to the drape such that the fluid pouch is in fluid communication with the aperture. In one embodiment, the fluid pouch is operable to transfer reduced pressure to the aperture such that the liquid from the tissue site is drawn into the fluid pouch. The fluid pouch may have a cavity that stores the liquid that is drawn from the tissue site. In another embodiment, the fluid pouch may include at least one baffle. The fluid pouch may also include a fluid channel at least partially defined by the at least one baffle. The fluid channel may be operable to store liquid from the tissue site when reduced pressure is applied through the fluid channel.

The invention provides a wound dressing made by an ex vivo formed combination of fibrinogen and/or fibrin containing-liquid formulation and an oxidized cellulose (OC) backing; and use thereof.

The present invention provides a method and device for visualizing and treating an injury, wound or skin using a visual tourniquet and skin patch system made of transparent materials. The inventive bandage system is capable of applying pressure while absorbing bodily fluids away from the wound or skin and providing support for the application of one or more medicaments or a combination of treatment gas and/or medicine. The inventive bandage system enables the practitioner to visually inspect and measure the size of the wound over time without removing or touching the bandage or tourniquet thereby reducing pain and contamination of the wound bed. One embodiment of the inventive bandage system continuously controls the wound bed temperature thereby reducing pain and inhibiting bacterial growth. Other embodiments of the inventive bandage system are used as a visual tourniquet to apply a combination of pressures to a wound or skin.

A protective device configured in accordance with a particular embodiment includes a cover including a first region that extends over a vulnerable site on a patient and a second region that extends over an area on the patient peripheral to the vulnerable site. The first region of the cover is at least generally impermeable to liquid water. The device further includes an adhesive film and a liquid-absorbing element. The adhesive film is configured to form an adhesive bond between the second region of the cover and the patient. The bond has an inner edge portion positioned toward the vulnerable site and an outer edge portion positioned away from the vulnerable site. The liquid-absorbing element is configured to absorb liquid contamination at the outer edge portion of the bond and/or liquid contamination approaching the outer edge portion of the bond when the cover is operably positioned on the patient.

A wound dressing comprising an adhesive layer having a skin-facing surface and a non-skin-facing surface, the non-skin-facing surface being provided with a backing layer, the dressing comprises a central portion comprising an absorbent adhesive, and an border portion surrounding the central portion, wherein the skin facing surface of edge portion of the adhesive layer is continuous and the skin facing surface of central portion is interrupted by interconnected cavities. The cavities provide a storage room and distribution center for wound exudates enabling the dressing to be applied to fast exuding wounds.

Systems, assemblies, and methods for providing negative-pressure therapy to a tissue site are described. The system can include an absorbent and a sealing layer configured to cover the absorbent. The system can also include a blister fluidly coupled to the absorbent. The blister may have a collapsed position and an expanded position. A first check valve may be fluidly coupled to the absorbent and the blister and configured to prevent fluid flow from the blister into the absorbent if the blister is moved from the expanded position to the collapsed position. A second check valve may be fluidly coupled to the blister and the ambient environment and configured to prevent fluid flow from the ambient environment into the blister if the blister is moved from the collapsed position to the expanded position.

Provided are buffered adhesive compositions comprising a high molecular weight non-neutralized polymeric acid and a high molecular weight partially neutralized polymeric acid and products such as wound dressings and ostomy skin barriers incorporating the compositions.

A wound dressing comprising: a backing sheet; a layer of pressure-sensitive adhesive on the backing sheet; an island of absorbent material having smaller area than the backing sheet and applied onto a central region of the backing sheet so as to leave a margin of adhesive- coated backing sheet around the absorbent material, and an apertured wound facing layer applied over the absorbent material and adhered to the backing sheet around said island by said pressure-sensitive adhesive, wherein the apertured wound facing layer comprises an apertured substrate having a coating of a silicone gel on the wound facing surface thereof, the open area of the apertured wound facing layer is from about 5% to about 75%, and the apertured wound facing layer comprises apertures having an open area of from about 2 mm2 to about 100 mm.sup.2.

Disclosed is a medical dressing having a pad and a border portion. The pad can have a rim and the border portion extends along said rim. The medical dressing can be arranged in a first substantially planar configuration and be folded along a first line, and a second portion of said medical dressing is formed and a second substantially cup-shaped configuration. The first portion can be facing and contacting said second portion. Said first substantially planar configuration the first and second portions can be connected by means of a fixed connection along a second line, which defines a second line segment having a first and a second end-point. The first and second line segments are connected at their respective first end-points such that an angle between 90 and 175 degrees is formed between the first and second line segments when the medical dressing is in the first substantially planar configuration.