A61F2013/00604

METHOD AND APPARATUS FOR SPLICING THREE-LAYER TAPES

A method and apparatus for automatically splicing two continuous three-layer tapes, wherein a longitudinally movable continuous wound tape is transversely cut so as to form individual wound pads which are applied in longitudinally spaced positions on adhesive surfaces of continuous carrier foils, and wherein a splicing element is cut from the continuous wound tape and is applied on tail and head portions of two continuous carrier foils.

Methods of making bioactive collagen wound care dressings
11622892 · 2023-04-11 · ·

A method of preparing a crosslinked, collagen-based wound care dressing is provided, comprising: (a) immersing a sample of fibrous and/or non-fibrous collagen in a buffered acidic, aqueous solution comprising an alcohol; (b) contacting the collagen in solution with a catalytic component comprising 1-ethyl-3-[3-dimethylaminopropyl]carbodiimide hydrochloride for a time at least sufficient to effect reaction between amino and carboxyl groups present on the collagen and to yield crosslinked collagen that is resistant to pronase degradation; and (c) drying the crosslinked collagen to yield a porous, crosslinked collagen article wherein the porous, crosslinked collagen article demonstrates a pore size of 10-500 microns. Also provided are bioactive collagen medical scaffolds for hernia repair prosthetics and surgical incision closure members, prepared using the method above.

WOUND DRESSING

Disclosed embodiments relate to a wound dressing which can generate nitric oxide. The wound dressing comprises a cover layer, an acid providing layer and a nitrite providing layer. The acid providing layer comprises acidic groups and may be hydrogel or Xerogel. The nitrite providing layer comprises a nitrite salt. The wound dressing may also include other layers, one or more acquisition distribution layers or masking layers. The masking layers can at least partially prevent visualization of the layer below the masking layer. Nitrite ions of the nitrite providing layer may react with the acidic groups of the acid providing layer to generate nitric oxide. The acid providing layer further includes one or more material layers to reduce the adhesiveness of the acid providing layer. The acid providing layer can also include perforations.

SKIN-FRIENDLY ABSORBENT STRUCTURE FOR PROVIDING OXYGEN
20170368223 · 2017-12-28 ·

A skin-friendly absorbent structure providing oxygen, comprising a absorbing layer and skin-friendly and oxygen-providing units, the skin-friendly and oxygen-providing unit being evenly dispersed in partial or entire scope of the absorbing layer wherein the skin-friendly and oxygen-providing unit comprises oxygen providing units and pH regulating units; and the pH of the skin-friendly absorbent structure is between 4 and 7 after absorbing liquids.

Wound dressing garment
09795516 · 2017-10-24 · ·

A wound dressing garment is provided. The wound dressing garment includes a wearable garment including a portion having a hole configured to receive a wound dressing therein in combination with the wound dressing. The wound dressing includes a border connecting the wound dressing to the wearable garment where the border extends around the perimeter of the hole to locate the wound dressing therein. The wound dressing may include one or more additional layers including a hydrogel layer. A method for treating wound or preventing bed sores using the wound dressing garment is also provided.

Multi-layered wound dressing containing an hydrocolloid and activated carbon

The invention relates to a wound dressing which is particularly suitable for therapeutically dressing wounds. Said wound dressing consists of a multi-layered structure comprising at least one layer containing at least one hydrocolloid, preferably collagen, (“hydrocolloid layer” or “collagen layer”) and at least one layer containing an activated carbon (“activated carbon layer”).

Perforated binder for laminated wound dressing
11241339 · 2022-02-08 · ·

A binder layer for a laminated wound dressing is brought into contact with a sheet coated with a pattern-coated adhesive sheet. As the binder layer is in contact with the pattern-coated adhesive sheet, a series of closed-loop cuts are made in the binder layer. The closed-loop cuts are made in such a way that the material enclosed by each closed loop is substantially physically separated from the remainder of the binder layer. Then the binder layer is moved away from the pattern-coated adhesive sheet, so that the binder layer and the pattern-coated adhesive sheet are no longer in contact. When the binder layer and the pattern-coated adhesive sheet are moved apart, the material enclosed in the closed-loop cuts—i.e., the cut waste fragments—are retained on the pattern-coated adhesive sheet, ensuring that the binder layer includes a series of cleared perforations.

Medical dressing for a convex body part

Disclosed is a medical dressing having a pad and a border portion. The pad can have a rim and the border portion extends along said rim. The medical dressing can be arranged in a first substantially planar configuration and be folded along a first line, and a second portion of said medical dressing is formed and a second substantially cup-shaped configuration. The first portion can be facing and contacting said second portion. Said first substantially planar configuration the first and second portions can be connected by means of a fixed connection along a second line, which defines a second line segment having a first and a second end-point. The first and second line segments are connected at their respective first end-points such that an angle between 90 and 175 degrees is formed between the first and second line segments when the medical dressing is in the first substantially planar configuration.

MOISTURE ASSESSMENT SYSTEM AND METHOD FOR WOUND CARE

A wound dressing for wireless communication with a transceiver includes a radio-frequency antenna circuit disposed on a flexible substrate, and an electrochemical moisture sensor circuit disposed on a surface of the flexible substrate. An adhesive is provided to attach the wound dressing skin of a user. The electrochemical moisture sensor is arranged between the adhesive and the flexible substrate.

Heat-shrinkable medical dressing structure for suture-free and scar-free wound closure
20220175586 · 2022-06-09 ·

A heat-shrinkable medical dressing structure for suture-free and scar-free wound closure, including a heat-shrinkable sheet portion and a non-heat-shrinkable sheet edge portion. The non-heat-shrinkable sheet edge portion is arranged along the bottom peripheral surface of the heat-shrinkable sheet portion and the two portions are fixed as one. The bottom surface of the non-heat-shrinkable sheet edge portion is provided with an adhesive layer. Shrinking force, produced when the heat-shrinkable sheet portion is heated, interworks with the adhesive edges so that wound closure is easily achieved without any sutures or secondary wounds. The heat-shrinkable medical dressing structure helps lessen pain and there will not be any scarring from sutures. It is easy to use and saves time and effort.