Patent classifications
A61F2013/00323
Pressure-Distributing Wound Prevention and Treatment Device
A dressing or device to distribute pressure for the purpose of prevention and treatment of wounds and intact skin is provided. The pressure distributing properties are achieved by a closed cell foam material that is in direct contact with the intact skin or wound and that can also have the ability to manage and absorb moisture. These unique characteristics creates a flexible, and easy to use dressing that can be cut to size and applied to any desired location on a patient.
Hybrid Dressings of Hydrophilic Material and Polymer Foam
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.
DRESSING WITH SEALING AND RETENTION INTERFACE
A dressing for treating a tissue site may include a base layer, a sealing member, a first and a second wicking layer, and an absorbent layer. The base layer may have a periphery surrounding a central portion and a plurality of apertures disposed through the periphery and the central portion. At least one of the apertures in the periphery may be positioned at an edge of the periphery, and may have an interior exposed at the edge. The sealing member and the base layer may define an enclosure. The first and the second wicking layer may each be disposed in the enclosure with the absorbent layer positioned between the first and the second wicking layer. Other dressings, systems, and methods are disclosed.
Dressing with sealing and retention interface
A dressing for treating a tissue site may include a base layer, a sealing member, a first and a second wicking layer, and an absorbent layer. The base layer may have a periphery surrounding a central portion and a plurality of apertures disposed through the periphery and the central portion. At least one of the apertures in the periphery may be positioned at an edge of the periphery, and may have an interior exposed at the edge. The sealing member and the base layer may define an enclosure. The first and the second wicking layer may each be disposed in the enclosure with the absorbent layer positioned between the first and the second wicking layer. Other dressings, systems, and methods are disclosed.
Monomer-grafted fibers and uses thereof
Wound dressing articles comprising a nonwoven web comprising a plurality of fibers having grafted pendant hydrophilic groups, methods that use high energy irradiation for making a plurality of fibers having grafted pendant hydrophilic groups, useful for making wound dressing articles.
Wound dressing garments, kits, systems, and methods
Wound therapy compression garments and layered dressing kits are described. In an aspect, a kit includes a compression garment and one or more fenestrated dressing layers. The compression garment includes a plurality of hydrophobic longitudinal wales arranged to form a fabric with a plurality of hydrophilic transverse elastomeric threads under variable tension connecting adjacent ones of the hydrophobic longitudinal wales in such way as to deliver elastic compression at a wound site. The hydrophobic longitudinal wales and the hydrophilic transverse elastomeric threads cooperate to generate hydrostatic pressure for transporting fluid away from the wound site. The fenestrated dressing layer(s) is configured to form a textured interface with the compression garment and increase movement of fluid away from the wound site.
Dressing with sealing and retention interface
A dressing for treating a tissue site may include a base layer, a sealing member, a first and a second wicking layer, and an absorbent layer. The base layer may have a periphery surrounding a central portion and a plurality of apertures disposed through the periphery and the central portion. At least one of the apertures in the periphery may be positioned at an edge of the periphery, and may have an interior exposed at the edge. The sealing member and the base layer may define an enclosure. The first and the second wicking layer may each be disposed in the enclosure with the absorbent layer positioned between the first and the second wicking layer. Other dressings, systems, and methods are disclosed.
Wound care device having fluid transfer and adhesive properties
This disclosure relates to a wound care device which contains capillary force one-way pumps that are capable of transporting fluid, such as wound exudate, away from a wound site to the opposite side of the wound care device, which functions as a segregated fluid reservoir. This fluid transport mechanism generally aids in reducing wound maceration by removing excess wound fluid and the protease enzymes and infectious bacteria contained within the wound fluid. The wound care device performs this function, often times for multiple days, without the loss of the physical integrity of the wound care device. In addition to providing a uni-directional fluid transport mechanism, the wound care device contains a perforated adhesive layer.
Wound care device having fluid transfer and adhesive properties
This disclosure relates to a wound care device which contains capillary force one-way pumps that are capable of transporting fluid, such as wound exudate, away from a wound site to the opposite side of the wound care device, which functions as a segregated fluid reservoir. This fluid transport mechanism generally aids in reducing wound maceration by removing excess wound fluid and the protease enzymes and infectious bacteria contained within the wound fluid. The wound care device performs this function, often times for multiple days, without the loss of the physical integrity of the wound care device. In addition to providing a uni-directional fluid transport mechanism, the wound care device contains a perforated adhesive layer.
Wound care device having fluid transfer and adhesive properties
This disclosure relates to a wound care device which contains capillary force one-way pumps that are capable of transporting fluid, such as wound exudate, away from a wound site to the opposite side of the wound care device, which functions as a segregated fluid reservoir. This fluid transport mechanism generally aids in reducing wound maceration by removing excess wound fluid and the protease enzymes and infectious bacteria contained within the wound fluid. The wound care device performs this function, often times for multiple days, without the loss of the physical integrity of the wound care device. In addition to providing a uni-directional fluid transport mechanism, the wound care device contains a perforated adhesive layer.