A61F13/01029

Wound dressing

The invention relates to a wound dressing for absorbing exudate from a wound on which the wound dressing is placed. The wound dressing includes a porous, highly absorptive fiber dressing and a negative surface charge on a surface of the dressing.

Shear resistant wound dressing for use in vacuum wound therapy

A cover layer for a vacuum wound therapy dressing includes a backing layer formed from a flexible polymeric membrane and an adhesive layer for affixing the backing layer over a wound bed to provide a substantially fluid-tight seal around a perimeter of the wound bed. The cover layer is reinforced with a reinforcement layer extending to a peripheral region of the backing layer to distribute forces associated with evacuating a reservoir, as defined by or within the cover, to stimulate healing of the wound bed.

Hybrid dressings of hydrophilic material and polymer foam
10182945 · 2019-01-22 · ·

Disclosed are hybrid wound dressings that include at least one front layer of a hydrophilic absorbent material and at least one layer behind the front layer that is made of an open-celled polymeric foam made from high internal phase emulsions (HIPEs). The hydrophilic absorbent material may be a natural polymeric material; a synthetic, non-foam polymer; or a material like glass microfiber. Each layer has a rate of fluid absorption and a capillary suction pressure (CSP) for a working fluid like blood plasma. The CSP increases from the front layer toward the layers behind the front layer, such that fluid is drawn away from a wound.

NEGATIVE PRESSURE WOUND THERAPY APPARATUS
20190015258 · 2019-01-17 ·

Disclosed embodiments relate to apparatuses and methods for wound treatment. In certain embodiments, a negative pressure wound therapy apparatus can include a spacer layer with an upper portion and a lower portion. The spacer layer can be configured to be wrapped around at least one edge of the absorbent layer with the upper portion of the spacer layer being above the absorbent layer and the lower portion of the spacer layer being below the absorbent layer. In some embodiments, a negative pressure wound therapy apparatus can include a first and second spacer layer and an absorbent layer. The first spacer layer can be positioned below the absorbent layer and the first spacer layer can have a perimeter larger than a perimeter of the absorbent layer. The second spacer layer can be positioned above the absorbent layer. The second spacer layer can have a perimeter larger than the perimeter of the absorbent layer.

DEVICES AND METHODS FOR SKIN TIGHTENING

The methods, procedures, kits, and devices described herein assist with the healing process of tissue that was previously or simultaneously treated for a therapeutic or cosmetic effect. The methods, procedures, kits, and devices described herein can also provide temporary simulated results of a cosmetic procedure to allow for visual assessment to select the type of procedure or for treatment planning in advance of the surgical procedure.

COMPRESSION DRESSING
20190008686 · 2019-01-10 ·

The invention relates to a compression dressing comprising a first cushion layer (1) and second support layer (2), wherein the two layers (1,2) are connected to each other in the unstretched state by means of stitch-bonding processes via an elastic sewing thread, the stitch length being 1.5 to 3 mm/U at a sewing thread tension of at most 4 cN.

METHODS AND PRODUCTS FOR REDUCING TISSUE TRAUMA USING WATER-ABSORBING STRESS-DISTRIBUTING MATERIALS

Methods and products for protecting tissue of a patient during a surgical procedure that involve making an incision in the tissue and retracting the tissue to make a larger opening, wherein the methods and products use a water-absorbing stress-distributing layer.

Absorbent article for application to human or animal skin surfaces
10166147 · 2019-01-01 · ·

An absorbent article that includes an outer covering made of two liquid-permeable cover layers that are joined together to form a pocket, and an inner layer that is initially freely movable within the pocket. The inner layer includes a mixture of particles of a superabsorbent polymer and substances that are osmotically comparatively weaker than the particles. When the absorbent article is applied to a human or animal skin surface to cover a wound, the absorbent article exerts an osmotic pressure via which endogenous wound exudate is removed from the wound. Thus, the absorbent article assists, both in a surface region and in a tissue depth, a normal interstitial hydration of the tissue by directing the wound fluids in a direction of flow to the skin surface and into the absorbent article, and by keeping the wound fluids that flow to the skin surface in the absorbent article.

Multilayer dressing device and method for preventing and treating pressure ulcers and chronic wounds
20180369009 · 2018-12-27 ·

The present invention provides a device and method for preventing or curing pressure ulcers or chronic wounds. A multilayer dressing comprises a soft silicone jell layer of a suitable thickness which is placed in the multilayer dressing, above an absorbent layer. The matrix of the silicone jell layer is populated with a plurality of silicone beads of suitable size. The beads are connected to each other, and to the silicone jell layer. Breathing of wound and substantial supply of oxygen to the wound is duly insured for all layers of the multiple layer dressing. The beads play a pivotal role in promoting the effectiveness and performance of the multilayer dressing by acting as the plurality of effective cushions, as they absorb and uniformly redistribute a patient's body weight across the entire applied dressing area. The low adhering adhesive coating of about 5 mm in width is applied to the peripheral edges of all the layers. Unlike the multilayer dressing already available in the market, skipping the application of low adhering adhesive coatings on the entire top and bottom surfaces of the layers helps in promoting overall breathability and consequently, the efficiency of the multilayer dressing of the present invention.

METHODS OF HANDLING ADHESIVE LAMINATE PATCHES
20180369023 · 2018-12-27 · ·

Methods of handling adhesive laminate patches. A first article, passed over a first supporting structure, includes disconnected adhesive laminate patches adhered to a first web, each patch being aligned over and adhered to a tab. A second web can be passed over a second supporting structure that is separated from the first supporting structure by a gap. The first article can be passed over the first supporting structure to lift a leading portion of a first tab and a first patch off of the first web together, such that the first tab facilitates transfer of the first patch across the gap. The first patch can then be adhered to the second web; and the second web can be advanced to transfer the first patch, and first tab, onto the second web to form a second article comprising patches aligned over tabs on the second web.