A method of manufacturing a laminated dressing that includes providing a lower layer having a fiber material that directly contacts a patient's skin and a wound area, providing an upper layer that has a foam or foam-like material that absorbs exudate and moisture, and binding the fiber-based lower layer and the foam-based upper layer with a binder layer comprising a binder material, the binder layer including a series of perforations. The perforations in the binder layer are formed by removing material from the binder layer with a pattern coated adhesive sheet prior to binding the fiber-based lower layer and the foam-based upper layer.

An adhesive wound dressing is disclosed herein. The adhesive wound dressing comprises a first layer that is an outer layer. A second layer is a resilient layer and affixed to an inner surface of the first layer. A third layer is an inner gauze dressing and affixed to an inner surface of the second layer, wherein the first layer, the second layer, and the third layer define a generally tubular configuration having an open end and a closed end. An adhesive layer may be applied adjacent to the open end for configured securing the adhesive wound dressing to a wounded body part subsequent to the wounded body part being inserted within the open end.

A citric acid containing dressing for treating a tissue site with negative pressure may comprise a cover, a manifold, and a perforated polymer film and/or a sealing layer. The sealing layer can be a perforated silicone gel having a treatment aperture. The dressing can further contain an adhesive. The cover, the manifold, and the perforated polymer film and/or the sealing layer may be assembled in a stacked relationship with the cover and the sealing layer enclosing the manifold. Citric acid may be present on or incorporated in, for example, the perforated polymer film and/or the sealing layer.

A medical dressing composed of a continuous frame enclosing a first surface area and having a bottom surface coated with an adhesive material and an upper surface, a polyurethane layer having a second surface area which covers the first surface area and is larger than the first surface area, and a layer opaque to UV rays having a third surface area, which covers the second surface area and is equal or larger than the second surface area.

A dressing for treating a tissue site with negative pressure including a foam member, a sealing layer, and a cover. The foam member may include a felted portion extending a depth into a surface of the foam member and a non-felted portion. The sealing layer may include a treatment aperture and a first plurality of perforations around the treatment aperture. The felted portion may be configured to contact the tissue site through the treatment aperture. A second plurality of perforations may be formed through the felted portion. At least one of the second plurality of perforations may be exposed to the tissue site through the treatment aperture. The cover may include a film disposed over the foam member and coupled to the sealing layer around the foam member and an adhesive disposed adjacent to the second plurality of perforations.

A wound dressing for wireless communication with a transceiver includes a radio-frequency antenna circuit disposed on a flexible substrate, and an electrochemical moisture sensor circuit disposed on a surface of the flexible substrate. An adhesive is provided to attach the wound dressing skin of a user. The electrochemical moisture sensor is arranged between the adhesive and the flexible substrate.

One embodiment of a waterproof bandage for reliably protecting sensitive sites from water intrusion, despite potential flaws in the seal to skin, comprises three major components: the inner bandage, comprising an absorbent layer (1) and a waterproof layer (2); the outer bandage, comprising an absorbent layer (3) and a waterproof layer (4); and an adhesive layer (5) binding the waterproof layer of the inner bandage (2) and the absorbent layer of the outer bandage (3) together. When properly sized, registered and bonded, the outer absorbent layer (3) functions to wick away and to prevent any water that may penetrate the outer waterproof layer (4) from breaching or damaging the inner bandage. The waterproof bandage can be configured in various sizes as a bandage (FIG. 1), or as a sleeve-like cover for a protected site on hands, arms, feet, legs, and other parts of the body (FIGS. 3 and 4).

A breathable medical gauze patch includes at least one bandage body coupled with at least one ply of gauze or similar to, which not only helps wounds heal fast, but also prevent infections and potential complications. The at least one bandage body includes an adhesive on the underside that permits mounting about the wound site of a user/recipient. The at least one ply is disposed about a bandage aperture of the at least one bandage body. The at least one ply permits aeration therethrough to the wound site and facilitates absorption of any seepage of the wound while protecting the wound from the exterior environment. Further, the at least one ply may include multiple layers of sterilized medical grade gauze, a gel and an adhesive that allow the present invention to be efficiently and effectively applied to various deep or shallow wounds for facilitating speedy healing of the wounds.

A wound dressing for wireless communication with a transceiver includes a radio-frequency antenna circuit disposed on a flexible substrate, and an electrochemical moisture sensor circuit disposed on a surface of the flexible substrate. An adhesive is provided to attach the wound dressing skin of a user. The electrochemical moisture sensor is arranged between the adhesive and the flexible substrate.

Disclosed embodiments may relate to dressings configured to provide negative-pressure therapy to a tissue site, such as an incision, while simultaneously allowing viewing of the tissue site during negative-pressure therapy. For example, the dressing may comprise a viewing window extending through the manifold. In some embodiments, the viewing window may be configured to provide lateral strain and/or apposition forces on the tissue site during therapy. In some embodiments, the manifold may comprise two horizontally-spaced strips of foam with a gap therebetween, and a transparent separator film may span the gap. In some embodiments, the separator film may comprise a plurality of perforations and/or textured features. In some embodiments, a transparent cover may be disposed over the manifolding strips. Additionally disclosed are other apparatus, dressings, systems, and methods.