A wound care device comprises a cover layer having formed from a stretchable material which has an elastic memory such that upon stretching the first layer will tend to retract to an at-rest position; a layer of adherent on the bottom surface of the cover layer; and a removable release liner removably adhered to the adherent. In use, the wound care device is applied over or adjacent the wound in a stretched/elongated condition extending to be adhered to skin beyond the margins of the wound. The wound care device retracts under its elastic member along lines of tension towards a focal point of lines of tension, thereby drawing the margins of the wound together to stabilize and compress the skin about the wound. The wound care device reduces and absorbs sheer forces directed to the wound that would otherwise disrupt connective tissue of the wound, the device comprising:

A negative pressure wound therapy system can include a wound dressing configured to be placed over a wound and configured to absorb fluid. The system can include a source of negative pressure configured to generate negative pressure to aspirate fluid from the wound. The system can include a memory. The system can include a controller configured to periodically store a plurality of data sets in the memory, in response to storing a data set of the plurality of data sets at a memory address in the memory, update the memory address for storing a subsequent data set, and in response to determining that the memory address corresponds to a memory address indicative of a duration of time following an initial activation of the system reaching a total permitted operational time of the system, provide an indication that the total permitted operational time of the system has been reached.

A negative pressure wound therapy bandage for applying negative pressure to a wound, the bandage comprising: a membrane configured for disposition over a wound so as to form a wound chamber between the membrane and the wound, the membrane comprising a wound-side surface, an atmosphere-side surface, and an opening extending through the membrane from the wound-side surface to the atmosphere-side surface; and a pump assembly carried by the membrane, the pump assembly comprising: a pump body comprising a wall structure disposed about a pump chamber, wherein at least a portion of the wall structure is resilient, and further wherein the pump chamber communicates with the wound chamber through the opening formed in the membrane; and an atmosphere-side passageway extending through the wall structure so as to fluidically connect the pump chamber to the atmosphere.

This disclosure includes negative pressure wound therapy dressings with local oxygen generation for topical wound therapy. The dressings (18) for facilitating delivery of oxygen and application of negative pressure to target tissue include a manifold (46) that defines a plurality of gas passageways (50) and is configured to allow communication of oxygen to the target tissue; an oxygen-generating material (146) that is configured to release oxygen when exposed to water; a gas-occlusive layer (74) configured to be disposed over the manifold and the oxygen-generating material and coupled to tissue surrounding the target tissue such that an interior volume containing the manifold and the oxygen-generating material is defined between the gas-occlusive layer and the target tissue; and a port (94) coupled to the gas-occlusive layer and configured to be coupled to a negative pressure source.

Embodiments of the present disclosure encompass systems and methods for in-situ/in vivo, bottom-up tissue generation for wound repair, repair of tissue defects, and the like. Embodiments of the systems of the present disclosure include modular scaffolds seeded with cells (modular tissue forming units (MTFUs)) for packing a tissue defect, such that these MTFUs are able to fill the wound bed with cells of one or more needed tissue types supported by the modular scaffolding particles.

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 dressing for treating tissue may be a composite of dressing layers, including a contact layer, a manifold layer, and an adhesive drape. The manifold layer may include one or more layers of felted open-cell foam in some examples. The manifold layer may be relatively thin to reduce the dressing profile and increase flexibility, which can enable it to conform to difficult geometry and other tissue sites under negative pressure. The dressing may have a length and a width less than the length. The manifold layer may include a population of holes extending at least partially therethrough, wherein the holes may be configured to promote anisotropic contraction of the dressing parallel to its width. The population of holes may have a circular, ovoid, triangular, square, hexagonal, irregular, or morphous shape. The dressing may be a bolster that may anisotropically contract to provide a closing force to a linear wound.

An adhesive convertible tissue stabilizer is provided which can be applied preoperatively to a patient to retract tissue to facilitate a medical/surgical procedure. As a perioperative device, the convertible device accepts most, if not all, surgical preparations, enabling the creation of a sterile field. At the completion of the procedure, the convertible device is converted from a perioperative device to a post-operative device by removal of a layer of the convertible device.

A method for accurately, rapidly and consistently cutting an opening in drape material for negative pressure wound therapy (NPWT) uses a cutting device that includes a plurality of cutting members that can extend from a bottom surface of the cutting device. A cover may fit over the bottom to protect the cutting members. The cutting members may be positioned to define a cut-out shape having dimensions designed for use with a NPWT system. An adhesive material may be formed on the bottom surface of the cutting device, inside of the cut-out shape defined by the cutting members. In use, the user presses the cutting tool onto the drape to cause the cutting members to cut into the drape and the adhesive to stick to the drape. When the user lifts the device, the drape, cut to the correct size and shape, is removed from the foam dressing covering the wound.

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.