A dressing for treating tissue with negative pressure is provided herein comprising a composite of dressing layers, including a release film, a perforated coated polymer film, a manifold, and an adhesive cover. Additionally, a method of manufacturing the dressing may comprise applying a cross-linkable polymer to a polymer film, curing the cross-linkable polymer to a gel layer to form a coated polymer film, and perforating the coated polymer film to form fluid restrictions, such as slits and/or slots, though the coated polymer film.

A vacuum sponge system, comprising: a sponge having an outer surface, a proximal end and a distal end, spaced from the proximal end in an axial direction of the sponge; a drainage tube disposed partially in the sponge, and is in fluid communication with the sponge; the drainage tube is connectable with a vacuum pump such that a pressure is applicable to the outer surface of the sponge; and a delivery member having an outer surface and extending in an axial direction of the sponge and adapted to establish a fluid communication between a region from the distal end of the sponge and region from the proximal end of the sponge. The pressure provided by the pump via the drainage tube is applied to a vicinity of the outer surface of the delivery member and the outer surface of the sponge. The delivery member is disposed partially radially outside of the sponge.

A negative pressure wound closure system and methods for using such a system are described. Preferred embodiments of the invention facilitate closure of the wound by utilizing a stabilizing structure that preferentially contracts to provide for movement of the tissue. Some embodiments may utilize a protective layer, such as a mesh or net layer, attached to a top surface of the stabilizing structure. The protective layer prevents a drape positioned over the stabilizing structure from being drawn into cells of the stabilizing structure, and permits visualization of the collapse of the cells.

A porous conduit may be suitable for use in treating a tissue site, and may include a central lumen and a porous wall positioned substantially concentric about the central lumen. The porous wall may have an open porous structure that may define a plurality of interconnected pores in fluid communication with one another. As part of a system, the porous conduit may be used with a manifold adapted to be positioned at a tissue site, a sealing drape adapted to cover the manifold to provide a sealed space relative to the tissue site, and a therapy device including a reduced-pressure source. The porous conduit may be disposed in the sealed space and in fluid communication between the sealed space and the reduced-pressure source.

A closing dressing bolster and assembly for use with a system for treating a linear wound on a patient includes a bolster body formed from a flexible closing bolster material having closing members that are operable to develop an inward closing force when the closing dressing bolster is placed under reduced pressure. In one aspect, when the closing dressing bolster is under reduced pressure, the system, dressing, or assembly develops an inward force realized at the linear wound and a compression force. A wicking-material holder and wicking material may be used as well. The member components may all be see-through to allow visual inspection of the wound without requiring removal of the dressing.

A negative pressure wound closure system and methods for using such a system are described. Preferred embodiments of the invention facilitate closure of the wound by preferentially contracting to provide for movement of the tissue. Some embodiments may include wound closure devices built from smaller units that are modular, assemble-able and/or customizable.

The present invention relates to a negative pressure wound closure system and methods for using such a system. Preferred embodiments of the invention facilitate closure of the wound by preferentially contracting to provide for movement of the tissue. Preferred embodiments can utilize tissue grasping elements to apply a wound closing force to the tissue.

A wound dressing for use in the application of negative pressure to a wound, comprising a support member and a cover member positionable over the wound in use. The support member can have a first support element having a first portion aligned with a first axis and a body portion coupled with and extending away from the first portion, and a second support element having a first portion aligned with the first axis and a body portion coupled with and extending away from the first portion of the second support element. At least the body portion of each of the first support element and the second support element can be independently rotatable about the first axis. The support member can support at least a middle portion of the cover member above a surface of the wound so as to define a space between the wound cover and the wound.

A catheter for transcutaneous and transluminal vacuum closure of perianal or entero-cutaneous fistulas and abscesses containing a body ending in a dome having a low-friction surface and equipped with a series of openings on the surface that connect inside the catheter body into a catheter chamber, which is then connected to a tube connected to a vacuum generating system characterized in that the catheter body on the outside has edges arranged in the shape of many helicoid coils, and in the grooves between these coils the series of openings are made into the chamber inside the catheter.

Provided are drainage systems that may include a drainage manifold and may be suitable for draining fluid from a tissue site. The drainage manifold may include a plurality of elongate members having a moveable end that may be adapted to configure the drainage manifold to treat a uniquely shaped tissue site. The drainage manifold may be coupled to a drainage tube with a transitional connector to provide a drainage system capable of distributing reduced pressure to the tissue site to enhance the drainage of fluids.