A connecting device for a wound protection dressing, and a wound protection dressing. The connecting device comprises a first tube connector (1) and a second tube connector (3); the first tube connector (1) and the second tube connector (3) are respectively provided with a first through hole (1a) and a second through hole (3a) that run through the respective ends of the first tube connector (1) and the second tube connector (3); a hollow ball head (2) is integrally formed on one end of the first tube connector (1); the inner cavity of the ball head (2) are in communication with the first through hole (1a); at least one via hole (2a) is provided on the ball head (2); a ball shell (4) adapted to the ball head (2) is integrally formed on one end of the second tube connector (3); the inner cavity of the ball shell (4) is in communication with the second through hole (3a); a snap-fit hole (4a) is provided on the ball shell (4); the snap-fit hole (4a) has at least one circular fastening hole (4a1); the ball head (2) is snap-fit in the ball shell (4); the end of the first tube connector (1) close to the ball head (2) is fastened in one of the fastening hole (4a1) of the snap-fit hole (4a). Thus, the connecting device for a wound protection dressing and the wound protection dressing which avoid pressing the skin and wound surface, allow the liquid to smoothly flow out, and facilitate flexible connection of the tube line are provided.

A negative pressure sealing drainage system for surgical treatment of deep cavity wound includes: a columnar porous foam drainage piece, a wave-form sealing cover which is extendable and retractable, a medical film, a drainage tube, a fluid storage container, and a negative pressure source. The columnar porous foam drainage piece is a hydrophilic foam, and is enclosed within the wave-form sealing cover. One end of the drainage tube is inserted into an upper portion of the columnar porous foam drainage piece. A flap provided along a circumference of the bottom-most end of the wave-form sealing cover adheres to skin surrounding a deep cavity wound. An upper end of the wave-form sealing cover is provided with a tube-shaped connection opening sealingly connected to the drainage tube communicating with a connection tube via a straight-tube fitting and inserted into the fluid storage container. The fluid storage container communicates with the negative pressure source via a connection tube.

A dressing for treating a tissue site, particularly a peritoneal or abdominal site, is disclosed. The dressing may comprise: first and second layers, each being made from a liquid-impermeable material and being at least partially fenestrated, the layers being coupled together to define a chamber therebetween; and disposed within the chamber a third layer comprising a manifold having a central region, and a perimeter region containing perforations arranged in a pattern defining a plurality of sub-regions. The first and second layers can be coupled using a plurality of welds or bonds through the perimeter region perforations. Optionally, the manifold does not comprise, and the chamber does not contain, any manifolding elements extending outward from an outer edge of the perimeter region.

A moisture trap for removing liquid from a fluid drawn from a tissue site treated with reduced pressure and systems and methods for using the same are described. The moisture trap may include a barrier adapted to be fluidly coupled to and define an indirect fluid path between a fluid reservoir and a reduced-pressure source. The barrier may have a hydrophilic surface. The moisture trap also may include a sump adapted to receive condensation from the barrier.

Disclosed herein are dressings capable of filtering, capturing, and/or releasing select biological molecules from wound exudate. In one embodiment, the dressing may include a permeable, non-adherent envelope. The permeable, non-adherent envelope may enclose a composition comprising milled hydrophobic foam.

Embodiments disclosed herein are directed to sealing compositions for negative pressure treatment systems and wound dressing systems, devices containing the same, apparatuses, uses and methods for creating a main wound dressing portion for use in wound care, more particularly for sealing a trimmable dressing, having a main dressing portion or cell in fluid (e.g., gas) communication with additional dressing portions or cells, for use in woundcare, more particularly that may be used for the treatment of wounds. In particular, some embodiments are directed to compositions for improving the versatility of wound dressings for wounds of different shapes or sizes.

Embodiments disclosed herein are directed to negative pressure treatment systems and wound dressing systems, apparatuses, and methods that may be used for the treatment of wounds. In particular, some embodiments are directed to improved wound dressings comprising an obscuring layer that may hide fluid contained therein. Some embodiments may further comprise one or more viewing windows disposed therethrough so as to enable monitoring or examination of fluids contained therein.

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.

Embodiments of negative pressure wound therapy systems and methods for operating the systems are disclosed. In one embodiment, a negative pressure source can provide negative pressure via a fluid flow path to a wound dressing comprising a stabilizing structure. The stabilizing structure can be inserted into a wound and collapse upon application of negative pressure to the wound when the stabilizing structure is positioned in the wound. A controller can in turn determine a measure of collapse of the stabilizing structure from a pressure in the fluid flow path while the negative pressure source maintains a magnitude of the pressure in the fluid flow path within a negative pressure range. The controller can output an indication responsive to the measure of collapse.

Described herein are dressings comprising a composite island comprising a polyurethane or foam layer coupled to an absorbent layer comprising non-woven gelling fibers. Also described herein are dressings comprising an absorbent layer comprising carboxymethyl cellulose fibers and a backing layer coupled to the absorbent layer. In the respective dressings, the absorbent layer is not elastically deformable under tissue treatment conditions, whereas the polyurethane or foam layer and the backing layer are substantially elastically deformable under tissue treatment conditions. The coupling of the absorbent layer to the polyurethane/foam layer or backing layer renders the coupled structure or the entire dressing substantially elastically deformable under tissue treatment conditions. Methods of eliminating, minimizing, or reducing edema are also described herein.