An evaporative bridge dressing that may be used with negative-pressure treatment of tissue. The evaporative bridge dressing may have one or more fluid transfer layers comprised of high-density wicking material enclosed between layers of film having high moisture-vapor transfer rates to reduce liquid storage and minimize pressure drop.

A dynamic gas-flow wound dressing assembly and method for enhancing the effect of generated gas flow across a wound creates spacing between a medical dressing cover and the wound to enhance ventilation. The assembly provides a medical dressing cover that covers a wound. The medical dressing couples to a gas flow framing structure having a gas inlet and enclosed gas outlets. A high rate gas flow is introduced through gas flow framing structure. The gas discharges to cross the wound. A scaffolding partition member serves as a resilient spacer between the gas flow framing structure and wound, enhancing ventilation by forces on the skin and directing gas flow. The scaffolding includes intake ports and outlet ports in fluid communication with inlets and outlets of gas flow framing structure. The scaffolding carries generated gas flow from the gas flow framing structure to wound, covering a larger gas flow volume across wound.

This invention provides wound healing systems, which delivers oxygen to the wound bed and applies negative pressure thereto, where the source of oxygen and negative pressure are simultaneously applied to distal sites of the dressing. Methods of treating wounds and methods of treating or preventing anaerobic infection of wounds using such systems are described.

Methods, dressings, and systems for promoting epithelialization of a wound or other tissue are presented. The methods, dressings, and systems help form simulated rete pegs. In one instance, an epithelialization dressing is disclosed that may include a dressing body having a plurality of projections. A plurality of apertures is formed on a portion of the dressing body. The dressing helps manage fluids on the wound and the projections form cavities into which epithelial tissue migrates to from epithelial columns that function like rete pegs. Other dressings, methods, and systems are disclosed.

A device and associated method for treating a skin graft donor site includes a sheet having dimensions to cover the skin graft donor site and an area of skin surrounding the skin graft donor site. An adhesive is provided that has properties of adhering to the skin and the sheet in a manner that forms a liquid impermeable boundary surrounding the skin graft donor site. A port is integrated with the sheet that enables a suction force to be applied therethrough to produce a negative pressure between the sheet and skin graft donor site to manage fluid produced by the skin graft donor site.

A reduced-pressure abdominal treatment device is presented that has a plurality of liquid-impermeable layers with a foam spacer between two of the liquid-impermeable layers. The plurality of liquid-impermeable layers have a coextensive area A.sub.1. The foam spacer has a plan-view area A.sub.2. A.sub.2 is less than 80% of A.sub.1 (i.e., A.sub.2<0.8 A.sub.1). The foam spacer is configured such that, under reduced pressure, a target fluid removal zone experiences reduced-pressure vectors over an angle theta () that is typically 360 degrees for a majority of locations in the target fluid removal zone. Applying 360 degrees of reduced pressure helps avoid blockage. The plurality of liquid-impermeable layers may be bonded for various effects. Other devices, systems, and methods are disclosed.

A wound therapy device is disclosed. The wound therapy device may include a housing for covering at least a portion of a wound and for sealing to a body surface of a patient. The housing may also include a liquid collector for retaining liquid therein and a vacuum connection for coupling to a vacuum source. The vacuum connection may be in gaseous communication with the liquid collector. The vacuum connection may be separated from the liquid collector by a liquid barrier.

Embodiments of a negative pressure wound therapy systems and methods for operating the systems are disclosed. In some embodiments, a system includes a pump assembly, canister, and a wound dressing configured to be positioned over a wound. The pump assembly, canister, and the wound dressing can be fluidically connected to facilitate delivery of negative pressure to a wound. The pump assembly can present graphical user interface screens for controlling and monitoring delivery of negative pressure. The system can be configured to efficiently deliver negative pressure and to detect and indicate presence of certain conditions, such as low pressure, high pressure, leak, canister full, and the like. Monitoring and detection of operating condition can be performed by measuring one or more operational parameters, such as pressure, flow rate, and the like.

A drainage device (1) particularly for aspiration in case of therapies with aspiration, fistulas, dehiscences of surgical wounds, bedsores, traumas and similar lesions, comprising an aspiration pouch (2) which is supported by a sheet-like element (5) which can be associated with the lesion (10) and is connected to aspiration means (3) by way of a connecting element (4).

A drainage device (1) particularly for aspiration in case of therapies with aspiration, fistulas, dehiscences of surgical wounds, bedsores, traumas and similar lesions, comprising an aspiration pouch (2) which is supported by a sheet-like element (5) which can be associated with the lesion (10) and is connected to aspiration means (3) by way of a connecting element (4).