A wound sealing powder, method of making a wound sealing powder, and method of using a wound sealing powder to reduce blood flow from a wound are provided. Specifically, the wound sealing powder utilizes a particulate powder material of an effective amount of an insoluble cation exchange material wherein the majority of the particles in the powder have particle sizes of less than approximately 48 microns.

A housing of a pump unit is fixed to a drape of a wound dressing by a joint portion. A suction chamber that is brought into a negative pressure by driving of a piezoelectric pump directly communicates with a closed space through an opening and an inlet. Hence, a therapy device does not need to include a pipe that allows the closed space and the pump unit to communicate with each other. Therefore, since the therapy device does not need to include the pipe that allows the pump unit to communicate with the closed space, detachment of the pump unit from the wound dressing owing to coming-off of the pipe is avoided. Since the housing is fixed to the drape by the joint portion, the pump unit can be prevented from detaching from the wound dressing.

A dressing for treating a tissue site with negative pressure, methods of manufacturing the dressing, and methods of using the dressing are described. The dressing includes a debriding manifold having a plurality of first regions with a first density, and a plurality of second regions with a second density less than the first density. The dressing can include a cover configured to be disposed over the debriding manifold. The cover includes a perimeter extending beyond the debriding manifold.

A system for treating a tissue site of a patient includes a dressing filler adapted to be positioned at the tissue site. The dressing filler includes a porous substrate having at least one compressed region and at least one expanded region. The compressed region of the porous substrate is held in a compressed state by a first coating capable of dissolving in the presence of a fluid, and the expanded region of the porous substrate is held in an expanded state by a second coating.

A dressing consists substantially of a hydrophilic membrane layer, a superabsorbent material positioned on the hydrophilic membrane layer, and a film layer coupled to the hydrophilic membrane layer and configured to confine the superabsorbent material between the film layer and the hydrophilic membrane layer. The film layer has a high moisture vapor transfer rate.

The present invention relates to a composition that can be used as or as part of a wound dressing and to wound dressings comprising the same. More specifically, the present invention relates to a composition that disrupts and kills bacteria within a biofilm and also prevents biofilm formation. The composition comprises a first component selected from the group consisting of chitosan, chitin, derivatives of chitosan, derivatives of chitin, and combinations thereof; at least one triprotic acid and at least one solubilising acid.

The invention provides a wound dressing, which includes a 1 to 12 mm thick layer of absorbent non-woven fibre material between 150 and 1200 grams per square meter, which layer includes a mixture of viscose fibres and polyester fibres which more viscose than polyester, and of which the fines of the viscose is between 1.5 and 3 dtex and the fines of the polyester is between 2 and 3 dtex.

Suture delivered patches adapted for interposition, augmentation or repair devices for use in tendon and ligament repair, including rotator cuff repair, have been developed as well as methods for their delivery using suture guided arthroscopic methods. The repair patches may be provided from suitable biocompatible materials. The patches may be delivered using anchored sutures already in use during a surgical repair including, open, minimally invasive, endoscopic, and arthroscopic repair procedures. Additionally, fixation of the suture delivered repair patch is secured along with the normal suture securing workflow of the one or more sutures used to deliver the patch.

Described herein are dressings for incision management comprising a dressing layer that comprises: an elastic layer such as a hydrocolloid or foam layer; and an absorbent layer coupled, for example by lamination, to the elastic layer and which comprises: (i) from about 45% to about 90% carboxymethyl cellulose fibers; and (ii) from about 10% to about 55% elastic reinforcing fibers. Though the elastic layer may be substantially elastically deformable under tissue treatment conditions and the absorbent layer may be not elastically deformable under tissue treatment conditions, the coupling together of the elastic layer and the absorbent layer may result in a dressing layer, and advantageously a dressing, that is substantially elastically deformable under tissue treatment conditions. Methods for manufacturing such dressings and of eliminating, minimizing, or reducing edema using such dressings are also described herein.

Disclosed herein are improved methods and apparatuses for providing hemostasis within a cavity defined by an internal surface of a bleeding tissue space. A catheter comprising a proximal end and a distal end may be advanced into the cavity through a proximal opening of the tissue space into the cavity. A distal balloon coupled to the catheter may be expanded, and the catheter tensioned to apply pressure to the internal surface of the tissue space to inhibit bleeding of the tissue space.