A61F13/01017

SYSTEM AND METHODS FOR THE TREATMENT OF WOUNDS WITH NEGATIVE PRESSURE AND INSTILLATION OF PEROXIDE PYRUVIC ACID
20200306428 · 2020-10-01 ·

In one example embodiment, a system for treating a tissue site is disclosed comprising a dressing adapted to contact the tissue site and provide a fluid seal between a therapeutic environment and a local external environment, and a solution source fluidly coupled to the dressing and adapted to deliver an antimicrobial solution comprising a peroxy -keto carboxylic acid, such as peroxy pyruvic acid, to the tissue interface. The system may further comprise a negative-pressure source fluidly coupled to the dressing and adapted to provide negative pressure to the therapeutic environment after delivery of the antimicrobial fluid to the therapeutic environment. In another example embodiment, a method for treating a tissue site is disclosed comprising positioning a tissue interface to contact the tissue site, covering the tissue interface and the tissue site with a drape to provide a fluid seal between the therapeutic environment and the local external environment, and delivering an antimicrobial solution comprising peroxy -keto carboxylic acid to the therapeutic environment before providing negative pressure to the therapeutic environment.

Dynamic negative-pressure therapy with instillation

Apparatuses, systems, and methods for instilling a solution to a tissue site are disclosed. In some embodiments, an instillation regulator may be fluidly coupled to a solution source and to a dressing, and the instillation regulator may draw a solution from the solution source during a negative-pressure interval may instill the solution to the dressing during a venting interval.

FIBROUS SHEET
20200297542 · 2020-09-24 · ·

Provided are a fibrous sheet having a stress relaxation rate defined by the following formula of less than or equal to 85%:


stress relaxation rate [%]=(stress S.sub.5 at extension after five minutes/stress S.sub.0 at initial extension)100

when a stress at extension immediately after extension in an in-plane first direction at 50% elongation is defined as a stress S.sub.0 (N/50 mm) at initial extension, and a stress at extension at a time of extending in the first direction at 50% elongation for five minutes is defined as a stress S.sub.5 (N/50 mm) at extension after five minutes, and a bandage including the fibrous sheet.

Systems and methods for using negative pressure wound therapy to manage open abdominal wounds

Embodiments disclosed herein are directed to the treatment of wounds using negative pressure. Some embodiments disclosed herein provide for a foam pad, which may be suitable for use in abdominal wound sites, and which may be sized in a dimensionally-independent manner. Additional embodiments provide for a wound contact layer, as well as a system for the treatment of abdominal wounds.

SUPER-ABSORBENT, REDUCED-PRESSURE WOUND DRESSING AND SYSTEMS
20200276055 · 2020-09-03 ·

A super-absorbent dressing assembly for use with a reduced-pressure wound treatment system includes a breathable, fluid restricted dry layer for placement against a wound, a super-absorbent layer, and a non-breathable layer, and a drape extending over the non-breathable layer. A reduced-pressure interface is available to fluidly couple the super-absorbent layer to a reduced-pressure subsystem. The super-absorbent dressing assembly preferably supplies a compressive force when placed under reduced pressure. A reduced-pressure treatment system uses a super-absorbent bolster to treat wounds, e.g., linear wounds.

Hydrogel wound dressings exhibiting reduced fiber losses in use

A wound dressing comprising: a water-absorbent fabric comprising at least about 10 wt. % of hydrogel-forming absorbent fibers based on the dry weight of the fabric; and an adhesion-resistant, water-permeable wound contacting surface textile layer that is substantially continuously bonded to at least one surface of said fabric. The surface textile layer may be formed by surface treatment of the fabric, or by bonding a suitable textile web to the surface of the fabric.

Medical dressing systems
10758422 · 2020-09-01 · ·

A bandaging system relating to assisting improved wound compression, wound stability, and wound-management of wound sites and other wound care.

Hydrophilic polyurethane nanofiber and method for manufacturing same

The present disclosure is to provide a method for producing polyurethane (PU) nanofibers with significantly improved hydrophilicity by producing water-soluble polymer/PU blend nanofiber by coaxial-electrospinning water-soluble polymer and hydrophobic PU, and, subsequently, dissolving and removing the water-soluble polymer from the blend nanofiber in water.

Reduced-pressure dressing assemblies for use in applying a closing force

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.

Foamed silicone in wound care

A silicone foam is described that is produced in-situ at a wound site, e.g. in a wound cavity, through a multi-component system, based on a physical foaming process, wherein the gas required to form the foam structure is provided through a blowing agent independently of the curing reaction of polyorganosiloxane components of the multi-component system. Therefore, the blowing agent is provided as a distinct entity of the multi-component system that is, in particular, not the result of any chemical reaction taking place in the multi-component system. A device for producing the foam and the corresponding negative pressure wound therapy kit are also described.