This disclosure includes wound dressings and systems with high-flow therapeutic gas sources for topical wound therapy and related methods. Some dressings, which are configured to be coupled to tissue to facilitate delivery of therapeutic gas to the tissue, comprise a manifold that defines a plurality of gas passageways, the manifold configured to allow communication of therapeutic gas to the tissue; and a gas-occlusive layer configured to be disposed over the manifold and coupled to the tissue such that an interior volume containing the manifold is defined between the gas-occlusive layer and the tissue and the gas-occlusive layer limits escape of therapeutic gas from the interior volume; wherein the gas-occlusive layer includes: a first opening configured to allow communication of therapeutic gas into the interior volume; and one or more second openings configured to allow communication of therapeutic gas out of the interior volume.

Embodiments disclosed herein are directed to the treatment of wounds using negative pressure. Some embodiments disclosed herein provide for a foam pad, which may be suitable for use in abdominal wound sites, and which may be sized in a dimensionally-independent manner. Additional embodiments provide for a wound contact layer, as well as a system for the treatment of abdominal wounds.

A multi-action wound dressing for accelerated wound healing by means of multi-therapeutic action is disclosed. The dressing comprises a porous sheet (101); two flexible sheets (102) having a first sheet (103) and a second sheet (104) attached to each other; multichannel conduits (105) or a plurality of single channel conduits; multichannel tubes (106), side adhesive tapes (107) and an optional wound contact layer (108). The porous sheet (101) includes a top planar surface (201), thickness (202) and a bottom uneven surface (203). The bottom uneven surface (203) lies on the surface of the wound and may have surface patterns (204). The pattern (204) may be wavy patterns and/or any other regular and/or irregular surface protrusion that allow intermediate gaps between wound surface and the bottom surface (203) of the porous sheet through which fluid can flow over the wound surface.

Embodiments disclosed herein are directed to the treatment of wounds using negative pressure. Some embodiments disclosed herein provide for a foam pad, which may be suitable for use in abdominal wound sites, and which may be sized in a dimensionally-independent manner. Additional embodiments provide for a wound contact layer, as well as a system for the treatment of abdominal wounds.

The present disclosure relates generally to wound dressing compositions that detect nitric oxide production in a wound upon application. The wound dressing composition comprises a first layer comprising an absorbent layer, a second layer comprising a reaction pad, a third layer comprising a transparent backing film, and optionally a fourth layer comprising a wicking layer. In the wound dressing composition, the second layer comprises a reaction pad of a dried reaction mixture to detect the presence of nitric oxide in a wound. The wound dressing composition can be a visual indicator of the presence of nitric oxide in a wound; a visual indicator of the wounds healing status.

Provided is a perforated plastic film comprising a plastic film having a large number of through holes, and the perforated plastic film has a moisture permeability of 300 to 3500 g/m.sup.2.Math.24 h and has a low skin irritation potential.

Provided is a dressing, including: a skin-friendly layer, a fluid transport structure, and an upper cover. The skin-friendly layer has first extraction guide holes and first injection guide holes. The fluid transport structure, formed on the skin-friendly layer, has an extraction guide groove, second extraction guide holes, an injection guide groove and second injection guide holes, wherein the extraction guide groove separates from the injection guide groove, the second extraction guide holes are formed in the extraction guide groove and communicate with the first extraction guide holes, and the second injection guide holes are formed in the injection guide groove and communicate with the first injection guide holes. The upper cover, formed on the fluid transport structure, has an extraction hole communicating with the extraction guide groove and the second extraction guide holes, and an injection hole communicating with the injection guide groove and the second injection guide holes.

Dressings, systems and methods of treating a tissue site are described. A method of manufacturing the dressing can include providing a dressing material. The dressing material can have a surface configured to contact the tissue site. The dressing material can also have a plurality of pores. The method can further include applying a compressive force to the dressing material at an angle to the surface, the compressive force causing permanent deformation of the plurality of pores. Causing permanent deformation of the plurality of pores can comprise forming a plurality of compressed pores. Forming a plurality of compressed pores can include compressing the plurality of pores from a generally circular shape to a generally ovular shape.

An example device for facilitating healing of a Cesarian section incision on a patient can include: a base configured to attach to skin of the patient, at least partially surrounding the Cesarian section incision; and a dome coupled with the base and extending over the Cesarian section incision, wherein the dome is configured to resist collapse when the device is worn under clothing.

A porous wound dressing for use in negative-pressure therapy is proposed. The wound dressing has an outer edge which defines a substantially oval or rectangular outer shape of the wound dressing with a major axis and a minor axis. The wound dressing has one or more incisions or perforations which together form one or more arc-shaped lines and serve for cutting the wound dressing to size in order to adapt the wound dressing to the shape and/or size of a wound. The one or more arc-shaped lines each extend asymmetrically with respect to the major axis and/or to the minor axis and each enclose, together with a portion of the outer edge, a segment of the wound dressing that is designed for separation from the wound dressing.