EP2704674A1 - Article pour le soin des plaies - Google Patents

Article pour le soin des plaies

Info

Publication number
EP2704674A1
EP2704674A1 EP12720839.5A EP12720839A EP2704674A1 EP 2704674 A1 EP2704674 A1 EP 2704674A1 EP 12720839 A EP12720839 A EP 12720839A EP 2704674 A1 EP2704674 A1 EP 2704674A1
Authority
EP
European Patent Office
Prior art keywords
wound care
care article
wound
wings
article according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP12720839.5A
Other languages
German (de)
English (en)
Inventor
Birgit Riesinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSN Medical GmbH
Original Assignee
BSN Medical GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE102011050047A external-priority patent/DE102011050047A1/de
Application filed by BSN Medical GmbH filed Critical BSN Medical GmbH
Publication of EP2704674A1 publication Critical patent/EP2704674A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/56—Supporting or fastening means
    • A61F13/58—Adhesive tab fastener elements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/06—Bandages or dressings; Absorbent pads specially adapted for feet or legs; Corn-pads; Corn-rings
    • A61F13/061—Bandages or dressings; Absorbent pads specially adapted for feet or legs; Corn-pads; Corn-rings for knees
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/06—Bandages or dressings; Absorbent pads specially adapted for feet or legs; Corn-pads; Corn-rings
    • A61F13/064—Bandages or dressings; Absorbent pads specially adapted for feet or legs; Corn-pads; Corn-rings for feet
    • A61F13/066—Bandages or dressings; Absorbent pads specially adapted for feet or legs; Corn-pads; Corn-rings for feet for the ankle
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/02—Adhesive bandages or dressings
    • A61F13/0203—Adhesive bandages or dressings with fluid retention members
    • A61F13/0206—Adhesive bandages or dressings with fluid retention members with absorbent fibrous layers, e.g. woven or non-woven absorbent pads or island dressings
    • A61F13/0209—Adhesive bandages or dressings with fluid retention members with absorbent fibrous layers, e.g. woven or non-woven absorbent pads or island dressings comprising superabsorbent material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/05—Bandages or dressings; Absorbent pads specially adapted for use with sub-pressure or over-pressure therapy, wound drainage or wound irrigation, e.g. for use with negative-pressure wound therapy [NPWT]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/06—Bandages or dressings; Absorbent pads specially adapted for feet or legs; Corn-pads; Corn-rings
    • A61F13/064—Bandages or dressings; Absorbent pads specially adapted for feet or legs; Corn-pads; Corn-rings for feet
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/10—Bandages or dressings; Absorbent pads specially adapted for fingers, hands, or arms; Finger-stalls; Nail-protectors
    • A61F13/101—Bandages or dressings; Absorbent pads specially adapted for fingers, hands, or arms; Finger-stalls; Nail-protectors for the elbow, e.g. decubitus ulcer bandages
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/14—Bandages or dressings; Absorbent pads specially adapted for the breast or abdomen
    • A61F13/141—Milk breast pads
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F17/00—First-aid kits
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M27/00—Drainage appliance for wounds or the like, i.e. wound drains, implanted drains

Definitions

  • the present invention relates to a wound care article.
  • the prior art for example from DE 10059439 of the applicant of the present application, discloses wound care articles having a wound-exudate-absorbing body.
  • the latter has a flat layer of absorbent material, consisting of an absorbent fleece with superabsorber particles distributed therein.
  • wound care articles have proven to be extremely effective in practice, as they are able to absorb exudates from great depths, thus significantly improving wound healing, especially in chronic and / or edema-related wounds.
  • these wound care articles are readily suitable only for relatively shallow wounds.
  • wounds in regions of the body with a convex topology require a flexible wound care article that can be applied to the convex topology without wrinkling or applying tension or pressure.
  • the wound care articles mentioned at the beginning are suitable only for wounds in the area of a relatively flat body topology, for example for rest on the legs or the thorax. In areas of more complex body topology (for example, at the heel or at the sacrum) such wound care articles are not readily suitable for successful wind supply.
  • AI wound care articles with convex insert are known.
  • this wound care article exhibits at least one active element, which gives the wound care article a convex or pyramidal shape in side view in its planar orientation and which is thus suitable for deeper wounds.
  • a wound care article which also has a two-dimensional layer with absorbent material and an active element, wherein the active element the plastic care article partially plastic deformation or modeling lent, so that the wound care article deforms under force irreversible and the maintains appropriate form thereby.
  • the wound care articles contain additional active elements in order to produce the required shape of the wound care article.
  • the object of the present invention is to provide an alternative wound care article which is suitable both for the treatment of deep wounds and for the treatment of wounds in areas of more complex body topology.
  • the subject matter of the invention is a wound care article comprising at least one flat layer, characterized in that the flat layer has at least two wings and a central layer. len portion, wherein the wings are arranged around the central region and the wings are connected to each other via the central region.
  • said wound care article preferably has the shape of a propeller with at least two wings and a central region, wherein the wings are arranged uniformly around the central region and the wings are connected to each other via the central region.
  • Said sheet-like layer comprises at least one material selected from the group consisting of a mat, in particular of an airlaid, for example comprising cellulose fibers, or a fleece of yarns or fibers of superabsorbent polymers with incorporated superabsorbent polymers, and / or a loose filling superabsorbent polymers.
  • Said Airlaid mat may preferably have a sheet of absorbent material, the z. B. consists of an absorbent fleece of said fibers with superabsorbent polymers distributed therein.
  • the sheet layer - hereinafter also alternatively referred to as absorption body - may correspond to the absorbent pad contained in a wound dressing of the applicant of the present invention, as disclosed for example in WO03094813, WO2007051599 and WO0152780 and under the trade name "sorbion Sachet "The disclosure of the said writings is fully attached to the disclosure of this document.
  • the two-dimensional layer can also form a core which-optionally flake-like fibers or yarns of superabsorbent polymers and superabsorbent polymers in granular form, wherein the granules are glued or welded to the fibers or yarns at several heights, and the granules are distributed over more than 50% of the total height of at least a portion of the core with intermingled regions of granules and fibers.
  • the weight percentage of superabsorbent In this case, polymers can preferably be in the range between 10 and 25% by weight. Similar constructions are known from conventional incontinence materials and known as sanitary napkins for their cushioning properties.
  • a shell may be arranged, which is arranged overlapping in regions and which, for example, covers or is part of an adhesive seam.
  • the planar layer may also comprise at least one flat layer comprising fibers or yarns of superabsorbent polymers to which superabsorbent polymers in granular form are glued.
  • a structure of the body which has at least three layers, wherein two cover layers surrounding a layer having superabsorbent polymers. There are no mixtures of fibers and superabsorbent polymers in the plane; but only fixed announcements of both materials.
  • wound care article is intended in particular to designate a wound dressing, preferably a flat wound dressing or a wound care cloth. Said wound dressing contains a flat layer and can be designed to be both absorbent and non-absorbent or only insubstantially absorbent.
  • wound care article may also be understood as an ensemble of various products placed in a given arrangement on the wound to be treated.
  • This ensemble can form a physical unit by the various products are combined in a common shell or - if necessary, without a shell - are adhesively bonded together.
  • the ensemble may also be in the form of a kit in which the various products are placed on the wound to be treated by means of a coil in the given arrangement.
  • shape of a propeller means that the sheet has a shape in which at least two wings are arranged around a central area, like the wings of a Helicopter propeller around a central shaft.
  • the wings are preferably radially, ie aligned in a star shape around the central area.
  • the wings can be arranged in a plane with the central region.
  • the wound care article is preferably intended for the treatment of deep wounds, wounds in cavities or wounds in body regions with a convex or irregular topology.
  • cavity refers to a preformed or newly formed cavity in a tissue or organ or a deep wound.
  • body region with convex topology speaks for itself. However, not only body regions with permanently convex topology are meant, such as e.g. the heel, the chin, the back of the head, the shoulder, the hip, the chest, individual finge or the fist, but also body regions with temporarily convex topology, for example the knee or the elbow joint.
  • the wound care article according to the invention is brought into a concave shape.
  • Body with irregular tops refers to such body regions having, for example, cavities with cavities and crowns with convex topology.
  • the term "deep wound” encompasses all wounds that are not only superficial.
  • the wings may protrude from the plane of the central region, for example, folded up or down compared to the plane of the central region.
  • the wound care article according to the invention can be adapted particularly effectively to the topology of the wound, of the organ or of the tissue In this way, the wound care article comes into the immediate vicinity of the wound, the organ or tissue and cavities between the wound, organ or tissue and wound care articles are avoided or at least minimized.
  • the wound care article according to the invention is also particularly advantageous in disposing the wound care article on a body region with a convex topology, since the embodiment according to the invention prevents parts of the wound care article from overlapping, which would reduce the wearing comfort and possibly cause friction and consequential phenomena.
  • this embodiment can also be in wounds in body regions with irregular or even topology.
  • the wound care article has a higher flexibility and thus conformability, while in the latter case, advantages in terms of capacity (see the discussion regarding the expansion spaces provided by the incisions) and the speed of fluid intake are increased since a larger entrance and contact surface between the sheet and liquid to be taken out is provided.
  • a particular embodiment of the wound care article is characterized in that the central region has a radially symmetric circumferential shape, the wings being obtained by radial incisions extending from the edge of the planar layer to the central region.
  • the said incisions form part of the expansion space discussed below.
  • the term "radial symmetric peripheral shape" is to be understood in the following peripheral shapes, which brings the object again with itself the rotation of the form by a certain angle about an axis of rotation with itself. The axis of rotation runs through the centroid of the shape.
  • the term encompasses not only the circular shape, but also the shape of an equilateral triangle (3-fold), the shape of a square (4-fold), or the shapes of polygons (especially pentagon (5-fold), hexagon (6-fold) ) and octagon (8-count)). It is particularly important that in three, four and polygons the corners can be rounded itself. For example, in the case of a square, a cloverleaf is created (see illustrations).
  • the central area is in the shape of a regular polygon, the wings being obtained by radial incisions extending from the edge of the sheet to the central area.
  • the central area may be in the form of a regular polygon with 2 to 20 or more corners, for example the shape of a triangle, quadrilateral, pentagon, hexagon, heptagon or octagon.
  • the claimed shape can be made by machining a flat layer, wherein the claimed shape is generated by radial incisions and / or recesses.
  • the said flat layer can preferably assume a rotationally symmetrical basic shape, for example the basic shape of a circle, a square or a regular polygon (also referred to as a regular n-corner or regular polygon).
  • the propeller blades have a particularly large area. This facilitates, for example, the lining of large cavities.
  • Another advantage of large surface area propellers is that the wings may partially overlap when lining the cavity. As a result, a complete lining of the cavity can be achieved.
  • a larger amount of wound care articles can thereby be deliberately introduced into the cavity, so that e.g. more exudate can be recorded.
  • exudate refers to a wound fluid derived from the blood plasma via the inflammatory processes of wound edema. Just like the blood for the transport of nutrients and other messenger substances, and thus is responsible for the supply of various parts of the body, the exudate serves in a similar way the supply of the wound bed and the healing processes running therein. To cope with this multitude of functions, it contains a wide range of components, resulting in a specific weight that is slightly above that of water. This is also different from the transudate, which is derived from non-inflammatory processes and has a significantly lower specific gravity with a low cell and protein content.
  • exudate coordinates the various processes of wound healing, both temporally and spatially, through its high content of growth factors and cytokines.
  • growth factors and cytokines are mainly formed by platelets, keratinocytes, macrophages and fibroblasts. They influence the motility, migration and proliferation of the various cells involved in wound healing. Thus, the migration of cells into the wound base is promoted as well as the supply of the newly formed granulation tissue by angiogenesis.
  • the wound cleansing is also supported by the exudate. It contains various serine, cysteine and aspartate proteases as well as matrix metalloproteases, which in their activity severely regulate irreversibly damaged tissue and thus prepare the wound bed for the subsequent phases of healing.
  • Components of the physiological exudate are in particular salts, glucose, cytokines and growth factors, plasma proteins, proteases (in particular matrix metalloproteases), granulocytes and macrophages.
  • the number of wings is selected from the group containing 2 to 20 or more wings, in particular 3 wings, 4 wings, 5 wings, 6 wings, 7 wings, 8 wings, 9 wings, 10 wings , 1 1 wing, 12, wing, 13, wing, 14, wing, 15 wing, 16 wing, 17 wing, 18 wing, 19 wing or 20 wing.
  • the number of wings is selected from the group containing 2 to 20 or more wings, in particular 3 wings, 4 wings, 5 wings, 6 wings, 7 wings, 8 wings, 9 wings, 10 wings , 1 1 wing, 12, wing, 13, wing, 14, wing, 15 wing, 16 wing, 17 wing, 18 wing, 19 wing or 20 wing.
  • areas in the flat position are recessed between the individual wings, so that wings and recessed areas are alternately arranged around the central area of the propeller.
  • the recessed areas between the wings provide wound care articles according to the invention which contain less material in a flat position.
  • the arrangement of the wings in a cavity may be easier to handle, as the wings overlap less or not at all in comparison.
  • small holes through which, for example, exudate can drain or be sucked off, or whereby medicaments can be introduced into the cavity.
  • the recessed areas can be the same size as the wings, but they can be smaller or larger. Further, the recessed areas provide expansion space available to the absorbent material for fluid intake for volume increase.
  • this embodiment is advantageous in arranging the wound care article on a body regions with a convex topology, since this prevents overlapping parts of the wound care article, which would reduce the wearing comfort and possibly cause friction and sequelae.
  • the wings and, if recessed areas are present, the wings and / or the recessed areas have a conical shape. Due to the conical shape, the wings can especially good at cavities with a conical shape, for example, wounds that are large on the surface and small inside, adapt and line them. Equally advantageous is the arrangement on body regions with convex topology.
  • the wings have the shape of a kidney. The propeller shape generated in this way is particularly advantageous, for example, if the wound care article has only a few propeller blades, for example two blades.
  • the wound care article according to the invention can then be arranged in the cavity so that the wings line the cavity as completely as possible in the upper region, wherein the planar position possibly even overlaps in the region of the wings, and gaps remain in the lower region of the cavity, through which eg exudate flows or can be sucked off.
  • At least one wing has one or more lateral incisions in the wing. In a further particular embodiment of the wound care article according to the invention, all wings have one or more lateral incisions in the wings.
  • each wing has a lateral incision approximately in the middle of the wing.
  • the central region has at least one radial incision in the central region.
  • the wound care article according to the invention may also have a plurality of radial incisions in the central area.
  • the central region has at least one radial cut in all recessed areas between the wings.
  • the wound care article of the invention may also have a plurality of radially incisions in one or more recessed areas. The number of radial incisions in the recessed areas may be different within a wound care article according to the invention, eg a recessed area between two wings may have an incision while another recessed area between two other wings of the same wound care article has two incisions.
  • the incisions in the central area of the wound care article facilitate the folding or buckling in the central area. It can also be arranged overlapping the wound care article in the central region. If necessary, material of the sheet can be unfolded with the help of the incision in the central area, in the central area also.
  • the incisions in the central area and in the area of the wings increase the possibilities of adaptation and the fit of the wound care article according to the invention for cavities.
  • the wound care article according to the invention for different forms of cavities can be optimized. Overall, this not only increases the handling of the wound care article in comparison to known wound care articles, but also improves the wound care, since the erfmdungs- appropriate wound care products can be optimally adapted to the topology of the cavity and the required supply.
  • the central region has an opening, preferably a central opening.
  • the wound care article according to the invention Via an opening in the central region of the wound care article according to the invention, for example, instruments and supplies can be brought to the wound, the organ or the tissue.
  • hoses can be guided through an opening in the central region.
  • An opening in the central area can be used to create a drainage device.
  • a surgical line Through the opening in the central area, a surgical line can be guided.
  • Drugs can be delivered through an opening in the central area.
  • the wound care article according to the invention comprises absorbent material.
  • the flat layer of absorbent material For example, the flat layer of absorbent material.
  • the absorbent material has a fleece, preferably an airlaid, and / or the absorbent material has superabsorbent polymers.
  • fleece refers to a textile fabric made of individual fibers, which, in contrast to woven fabrics, knitted fabrics and knitted fabrics, is not made of yarns.
  • Woven fleeces usually retain their structural integrity by adhesion of the individual fibers. designated, and eg made by swaging the fibers.
  • airlaid refers to a special nonwoven fabric made of wood pulp and polyolefin fibers in which superabsorbent polymers may be embedded.
  • Superabsorbent polymers SAP are plastics that are capable of absorbing many times their own weight - up to 1000 times - in liquids, chemically a copolymer of acrylic acid (propionic acid, C 3 H 4 O 2
  • a so-called core cross linker (CXL) is added to the monomer solution containing the long-chain polymer molecules formed) and sodium acrylate (sodium salt of acrylic acid, NaC 3 H 3 O 2 )
  • the methylacrylic acid-based superabsorbents polyvinyl alcohol-maleic anhydride copolymers, polysaccharide-maleic anhydride copolymers, maleic acid derivatives, acrylamidopropanesulfonic acid copolymers, starch acrylonitrile graft polymers, gelatinized starch derivatives, alkyl or hydroxyalkyl cellulose, carboxymethyl cellulose, starch acrylic acid Graft polymers, vinyl acetate-acrylic acid ester copolymers, acrylonitrile or acrylamide copolymers.
  • the superabsorber particles can be present in powder or granular form in a particle size between 100 and about 1000 ⁇ m.
  • the fibrous form is particularly preferred since it is a very soft product in both the dry and the swollen state, which is modulatable and non-rigid, in contrast to the superabsorbent polymers present in granular or powder form Moreover, it has a low abrasiveness. This applies both to fibers as such and also to fiber knitted fabrics, scrims or nonwovens and / or fiber wadding.
  • the said properties make superabsorbent polymers in fiber form particularly suitable for products according to the invention, which are designed as patient pads and decubitus pads. Especially in these applications, it is particularly important to high softness.
  • superabsorbent polymers in fiber form have a faster response to liquids than superabsorbent polymers in granular or powder form.
  • superabsorbent polymers in fiber form support the wicking effect of the wells of the invention.
  • said superabsorbent polymers may also be derivatives of cellulose, preferably
  • Sulfoalkylated cellulose and derivatives thereof preferably cellulose ethylsulfonates.
  • Carboxyalkylated cellulose preferably carboxymethylcellulose, carboxyethylcellulose and / or carboxypropylcellulose
  • More complex cellulose derivatives such as sulphoethylcarboxymethylcellulose, carboxymethylhydroxyethylcellulose, hydroxypropyl-methylcellulose, and
  • Amidated cellulose derivatives such as carboxymethyl cellulose amide or
  • said superabsorbent polymers may also be alginates. Likewise, said superabsorbent polymers may also be
  • Hydrogel nanoparticles comprising hydroxy-terminated methacrylate monomers, such as 2-hydroxyethyl methacrylate (HEMA) and / or 2-hydroxypropyl methacrylate (HPMA), e.g. marketed as Altrazeal act.
  • HEMA 2-hydroxyethyl methacrylate
  • HPMA 2-hydroxypropyl methacrylate
  • the superabsorbent polymers may be in the form of a granulate, a powder, a filling, a compact, a foam, Form of fibers, a Fasergewirkeses, -lens or-fleece and / or a fiber wadding present.
  • the absorbent material may be 40 wt% or more of superabsorbent polymers.
  • the wound care article according to the invention comprises a flat layer containing an absorbent material. Particularly preferred is a substantially flat layer of absorbent material, which consists of an absorbent fleece with superabsorbent polymers distributed therein.
  • the absorbent material is preferably designed to absorb the wound exudate as efficiently as possible.
  • the absorbent material has for example a surface-specific weight of at least 300 g / m 2 , wherein the basis weight of the uniformly distributed therein proportion of osmotically active substances is at least 100 g / m 2 .
  • the absorbent material preferably comprises a material selected from the group consisting of a mat, in particular an airlaid of said yarns or fibers of superabsorbent polymers with incorporated superabsorbent polymers, and / or a loose filling of superabsorbent polymers.
  • Said Airlaid mat may preferably have a substantially flat layer of absorbent material, the z. B. consists of an absorbent fleece of said fibers with superabsorbent polymers distributed therein.
  • the absorbent material may be an absorbent pad contained in a wound dressing of the assignee of the present invention and disclosed, for example, in WO03094813, WO2007051599 and WO0152780 and sold under the trade name "sorbion sachet"
  • WO03094813 WO2007051599 and WO0152780
  • sorbion sachet The disclosure content of this document is attached in its entirety.
  • the absorbent material may also form a core which comprises fibers or yarns of superabsorbent polymers and superabsorbent polymers in granular form, optionally flake-like, the granules being adhesively bonded or welded to the fibers or yarns at several heights, and the granules are distributed over more than 50% of the total height of at least a portion of the core with intermingled regions of granules and fibers.
  • the proportion by weight of the superabsorbent polymers may preferably be in the range between 10 and 25% by weight. Similar constructions are known from conventional incontinence materials and known as sanitary napkins for their cushioning properties.
  • the absorbent material in another embodiment may also include at least one shallow layer comprising fibers or yarns of superabsorbent polymers to which superabsorbent polymers in granular form are adhered.
  • this results in a construction of the body which has at least three layers, wherein two cover layers surround a layer comprising superabsorbent polymers. There are no mixtures of fibers and superabsorbent polymers in the plane; but only fixed announcements of both materials.
  • the optionally provided multiple layers may be in a preferred embodiment also physically compacted by rolling, pressing, calendering or similar processes.
  • the body may have repetitive patterns or grains such as e.g. a checked pattern, a punching pattern or the like.
  • the nonwoven or the superabsorbent polymers can be brought as part of the wound care article of the invention very close to the site of action.
  • the wound fillers described hitherto in the prior art are generally passive, ie not equipped with active-acting agents.
  • the proximity of wound and absorbent material produced with the aid of the wound care article according to the invention is particularly advantageous since superabsorbent polymers can bind proteins and bacteria, as shown, for example, in DE 102007054127 by the applicant of the present invention. The closer she is be brought to the wound, the more advantageous this property therefore affects the wound healing.
  • a particular embodiment of the wound-care article according to the invention also has, at least in sections, the wound-care article an at least partially fluid-permeable cover.
  • Said casing can, for example, take up the rotationally symmetrical basic shape, for example the shape of a circle, a square or a regular polygon:
  • the casing like the two-dimensional layer, can emulate the said incisions and / or recesses of the flat layer.
  • Surrounding the absorbent material may be one or more sheaths which are overlapped in areas and which may be e.g. an adhesive seam is covered or part of the same.
  • a section of a hydrophobic and / or water-repellent or water-impermeable material may be provided within the envelope, which acts as a means of penetration or washing.
  • the at least partially liquid-permeable casing surrounds the sheet-like layer, forms a barrier against solid precipitations forms and allows the passage of other leaked substances to the disposed within the envelope sheet of absorbent material.
  • the sheath is preferably at least partially closed by a seam
  • the flat layer has a surface in plan view of its flat side, which is in its non-wetted state by 3% to 75% smaller than the surface of the flat-laid casing and is freely movable or fixed in the shell Expansion room provided. In this way, it is ensured that the areal situation can increase in volume during fluid intake and is not restricted by the sheath.
  • the Shell is preferably designed to have pores which are on average smaller than the unwetted superabsorbent polymers.
  • the shell in plan view on its flat side has a circumferential, projecting beyond the seam top and the absorbent material is free of hard, sharp edges and corners.
  • the pores or meshes of the shell are preferably 0.05 mm to 1.0 mm, preferably 0.20 mm to 0.50 mm in size. Furthermore, it can preferably be provided that the pores or ma- see through the filament or fiber sections are limited, which are approximately arc-shaped in section through the shell and point with their arc crests to the outside.
  • the envelope is preferably formed from woven or non-woven composite synthetic fibers, such as polypropylene or polyethylene fibers, but also cotton, silk or viscose. It preferably consists of one of a woven or nonwoven which has at least a surface-specific weight of 20 g / m 2 .
  • the shell is made of hydrophobic material, or the shell material is hydrophobic equipped. The hydrophobic properties of the sheath prevent it from sticking to the wound surface and help the wound exudate particles to enter the sheath more quickly.
  • the sheath comprises, at least in sections, an elastic material, for example fibers of Lycra or elastane.
  • an elastic material for example fibers of Lycra or elastane.
  • the absorbing material may increase in volume during fluid intake and is not restricted by the sheath
  • the material of the sheath may be structured such that the sheath has a rough inner surface and a smooth outer surface.
  • the rough inner surface of the shell is formed by funnel-shaped perforations, each tapering towards the inner surface and terminating in a free opening edge ("protrusion") Shifts of the contents of the shell, so that can be dispensed with a fixation with adhesive dots.
  • the smooth outer surface of the sheath material may be formed by curved, between the perforations extending material portions.
  • Such a shell material in contrast to a two-sided plane, can be referred to as "three-dimensional", and is known, for example, from the DE102006017194 of the applicant of the present application, to the disclosure of which reference is made in its entirety.
  • the shell can have a rotationally symmetrical basic shape in plan view, for example the shape of a circle, a square or a regular polygon.
  • the shell can also simulate the said incisions and / or recesses of the planar layer.
  • said three-dimensional shell material is laminated to the aforementioned polypropylene nonwoven. Such a design results in improved fluid absorption properties.
  • the wound care article according to the invention has at least in sections a liquid-impermeable protection against wear (“backsheet”) .Furthermore, it can be provided that the cover on the wound-facing side is provided with a physiologically acceptable adhesive (for example a hydrocolloid adhesive). equipped.
  • a physiologically acceptable adhesive for example a hydrocolloid adhesive
  • the wound care article may be expedient to dispense with such a shell or to form the shell in such a way that it simulates the said incisions and / or recesses of the planar position.
  • it may also be useful to dispense with such a shell or form the shell so that it replicates the said incisions and / or recesses of the sheet-like position.
  • the wound care article according to the invention has, for example, on its wound-facing side at least in sections a shell material comprising hydroactive polymers. This can be, for example, a layer of a material containing modified cellulose.
  • Modified cellulose is preferably derivatives of cellulose, preferably sulfoalkylated cellulose and derivatives thereof, preferably cellulose ethylsulfonates, carboxyalkylated cellulose, preferably carboxymethylcellulose, carboxyethylcellulose and / or carboxypropylcellulose, more complex cellulose derivatives, such as sulphoethylcarboxymethylcellulose, carboxymethylhydroxyethylcellulose, hydroxypropylcellulose methylcellulose, and amidated cellulose derivatives, such as carboxymethylcellulose amide or carboxypropylcellulose amide.
  • Carboxymethyl cellulose is particularly present in the form of sodium carboxymethylcellulose and is commercially available under the name "Hydrofiber".
  • the fibers are converted into a planar matrix.
  • the fibers are gradually transformed into a gel pad that holds the fluid and does not release it again.
  • the fibers are constructed so that the wound exudate is absorbed only in the vertical direction. This means that, as long as the capacity is sufficient, the exudate does not flow over the edge of the wound. In this way, wound edge maceration can be effectively prevented.
  • hydroactive polymers may also be alginates.
  • Alginates are extracted from brown algae and woven into a fibrous web. Chemically, it is polysaccharides, namely calcium and / or Natrimsalze the alginic acids.
  • Algi- nates can absorb up to 20 times their own weight in liquid, whereby the wound exudate is stored in the cavities.
  • the Ca2 + ions contained in the alginate lattice are exchanged with the Na + ions from the exudate until the saturation level of Na ions in the alginate is reached. This leads to a swelling of the wound dressing and the conversion of the alginate fiber into a gel body by swelling of the fibers.
  • said hydroactive polymers may also be hydrogel nanoparticles comprising hydroxy-terminated methacrylate monomers, such as 2-hydroxyethyl methacrylate (HEMA) and / or 2-hydroxypropyl methacrylate (HPMA), which are marketed, for example, as altracelium.
  • HEMA 2-hydroxyethyl methacrylate
  • HPMA 2-hydroxypropyl methacrylate
  • This embodiment is particularly advantageous for a wound care article which is to be introduced into a cavity, for example a fist, since said hydroactive polymer can then form a gel in the wound area and is thus perceived by the patient as pleasant and pain-relieving. In addition, such a gluing is avoided.
  • the absorption body has a proportion of> 40 wt .-% of superabsorbent polymers.
  • the weight fraction of the superabsorbent polymers is particularly preferably> 45, 50, 55, 60, 65 or 70% by weight. Wound care articles with such high proportions by weight of superabsorbent polymers have a particularly high absorption capacity for liquids and may u.U. Replace vacuum wound systems on the market.
  • the wound care article according to the invention comprises at least one nutritive and / or disinfecting or decontaminating and / or protease inhibiting active substance and / or active substance complex and / or a hemostatics.
  • Hemostatic agents are chemically and / or physiologically active agents or active substance complexes having at least one substance or a substance composition which have hemostatic properties.
  • the disinfecting active ingredient and / or active substance complex may be, for example, a composition of at least one vitamin or vitamin derivative, a meta-derivative, llion and a detergent. It may also be an BLIS (bacteriocin like inhibitory substance) or coated magnetic particles.
  • BLIS Bacteriocin like inhibitory substance
  • the nutritive active ingredient and / or active substance complex may be a composition containing at least the constituents of an enteral and / or parenteral dietetics. It may also be at least one active element selected from the group containing insulin, recombinant insulin, proinsulin, an insulin-like growth factor (IGF), an insulin mimetic and / or a diabetic-specific, non-glucose or sucrose-based energy carrier ,
  • the protease-inhibiting active substance and / or active substance complex may be at least one active element selected from the group consisting of protease inhibitors, superabsorbent polymers, divalent cation chelators, collagen, coated magnetic particles, acids, buffers, non-pathogenic acid-producing microorganisms, probiotics and / or act symbiotics.
  • the wound care article according to the invention may comprise at least one nutritive, at least one disinfecting or decontaminating and / or at least one protease inhibiting active substance and / or complex agent.
  • the flat layer has a pattern of incisions and / or punches. The incisions and / or punches are preferably designed and / or arranged such that they facilitate the entry of liquid into the wound care article.
  • the wound care article according to the invention comprises, at least in sections, at least one elemental or ionic heavy metal, preferably selected from the group comprising copper, zinc and / or silver.
  • Said elemental or ionic heavy metal may be in colloidal form, in sheet form, in fiber or particle bound or covering form, or the like.
  • the wound care article according to the invention is provided on the wound-facing side with an adhesive coating (for example in the manner of a border dressing).
  • an adhesive coating for example in the manner of a border dressing.
  • a polyacrylate adhesive, a silicone adhesive or a hydrocolloid adhesive can be used for this purpose.
  • the wound care article according to the invention has at least one slot in its sheath.
  • the wound care article is suitable for transfer around a catheter, a drainage tube or a cannula or for coupling two or more wound care articles to one another.
  • the invention also provides a wound care system comprising one or more wound care articles according to the invention.
  • the wound care system comprises one or more wound care articles according to the invention and a drainage device and / or a surgical line.
  • the invention also relates to the use of a wound care article according to the invention for the treatment of deep wounds, regions of the body with convex topology and / or wounds which are in the range of an irregular body topology.
  • the wound care article of the invention can be easily adapted to the topology and shape of the wound to be treated.
  • the wound care article according to the invention can be brought into a mold by folding up the wings and arranging the wings in the cavity so that the wound care article fills the wound and comes in contact with the wound base over wide areas. In this way, low-lying edema and exudate accumulations are recorded, and the wound healing process is promoted.
  • the wound care article according to the invention makes other wound fillers, as used in the prior art (see above) dispensable. Also, additional active elements for generating and stabilizing the shape of the wound care article for cavities are not necessary.
  • additional active elements may be used to assist in adapting the shape of the wound care article of the invention to the cavity of the wound, organ or tissue.
  • a particular embodiment of the invention relates to a wound care article according to the invention, wherein the wound care article has at least one additional active element, for example one described in DE 102009038387 A1 or in DE102009043023 A1.
  • the wound care article according to the invention can be made, for example, in a convex (in cavities) or concave (in body regions with a convex topology) shape, which is then stabilized by an additional active element.
  • the said active element comprises a reinforcement of a plastically deformable or modelable material.
  • reinforcement in the following refers to a reinforcing layer which gives the wound care article its plastic deformability or modeling ability, but does not appear on the surface of the wound care article and consequently can not come into contact with the wound in the plastically deformable or modelable material around a wire or strip material, in particular made of plastic or paper tape, on the side of two wires are incorporated as reinforcements .
  • the plastically deformable or modelable material can at least one material selected from the group containing metal
  • the wound care article according to the invention may also be designed to be suitable for transfer around a surgically applied line adapted to reposition the dressing on the body of a patient by a conduit (eg, a drainage conduit or a catheter), wherein the wound care article is associated with a second, also planar, wound care article which is spaced from the first wound care article, the distance being defined by a connection strip or bridge is bridged.
  • a wound care article is known, for example, from DE202006005966 by the applicant of the present invention, the content of which is to be fully added to the disclosure content of the present description.
  • the invention also relates to the use of a wound care article (100) according to the present invention in one of the prior art applications in a negative pressure wound care system.
  • wound care systems are known, for example, from DE202004017052, WO2006048246 and DE202004018245 by the assignee of the present invention.
  • the disclosure content is expressly incorporated by reference.
  • a device for wound treatment using negative pressure which comprises a gas-tight wound covering element which, in the state applied to the patient's body, forms a space remaining between the respective wound and the wound covering element, and at least one connection point which is in contact with the space and by means of which the air in the room can be evacuated, the wound covering element being underlaid by at least one planar wound care article receiving the wound secretions whose volume increases in the course of the absorption process, so that the absorbed wound secretions within the wound care article and thus below the wound covering element up to Removing the wound care article from the body of the patient remain, the wound care article is at least one layer of a superabsorbent enriched textile section, which is surrounded by a liquid-permeable shell, and the location in Top view on its flat side has a surface that is 3% to 90% smaller than that of the shell, so that the wound care article can approach in the vicinity of its entire filling capacity in the cross section of a circular shape.
  • a multi-component dressing for wound treatment of the human or animal body using negative pressure comprising: a wound covering element for attachment to the skin and mucosal surface, at least one connection point which is in contact with the wound space and over which the substances located in the wound space are evacuated can, this having superabsorbent polymers, wherein the absorbed wound secretions remain bound to polymers in the wound space until removal from the wound space, the polymers support by their binding capacity mutual synergies with the subatmospheric pressures.
  • a drainage device for wound treatment using negative pressure comprising a gastight, consisting of film-like material wound covering element, which is adhesively attached to the body surface of the patient on the skin surface around the wound area around and one between the respective wound and the wound covering element remaining, sealed space forms, at least one drainage tube, which is used in the space over which the substances in the room can be evacuated, and at least one disposed within the room, the wound secretions absorbing wound care article, the at least one layer of superabsorbents enriched textile section, which is surrounded by a liquid-permeable sheath, wherein the absorbed wound secretions within the wound care article and thus below the wound covering element until removal of the wound care article from the body remain of the patient, and wherein the wound covering element has a gastight sealable treatment opening through which the wound care article can be inserted into the room and removed from the room.
  • a particular advantage of the wound care article according to the invention is that, despite optimal adaptation to the topology, it is not stiff and therefore follows the movements which the patient exercises.
  • the wound care article according to the invention therefore means a considerable gain in comfort for the patient and problems such as skin irritation and chafing are avoided.
  • FIG. 1 a shows a wound care article 100 according to the invention having a flat layer 105, two wings 102, central region 103 and sheath 101.
  • the flat layer 105 has a round shape.
  • the wings 102 may be obtained by incisions from the edge of the sheet 105 to the central portion 103 of the sheet 105.
  • the shell 101 has a larger area than the sheet-like layer 105.
  • FIG. 1b shows a wound care article 100 according to the invention with a flat layer 105, six wings 102, central region 103 and sheath 101.
  • the flat layer 105 has a round shape.
  • the wings 102 may be obtained by incisions from the edge of the sheet 105 to the central portion 103 of the sheet 105.
  • the sheath 101 has a larger area than the flat layer 105.
  • FIG. 2a shows a wound care article 100 according to the invention with a flat layer 105, six wings 102, central area 103, sheath 101 and recessed areas 106.
  • the recessed areas form part of the above already mentioned expansion space.
  • the flat layer 105 has a round shape.
  • the wings 102 alternate with recessed areas 106. Wings 102 and recessed areas 106 are arranged alternately around the central area 103 of the flat layer 105.
  • the shell 101 has a larger area than the sheet-like layer 105.
  • FIG. 2b shows a wound care article 100 according to the invention with eight wings 102 and eight recessed areas 106, a flat layer 105, central area 103 and shell 101.
  • the wings 102 alternate with recessed areas 106. Vanes 102 and recessed areas 106 are arranged alternately around the central area 103 of the sheet 105.
  • FIG. 3 a shows a wound care article 100 according to the invention with two kidney-shaped wings 102.
  • the central region 103 of the sheet-like layer 105, the recessed regions 106 and the sheath 101 are likewise shown.
  • FIG. 3b shows a wound care article 100 according to the invention with six wings 102 which are laterally incised 107.
  • FIG. 4a shows a wound care article 100 according to the invention with a central region 103 and radial incisions 108 in the central region, six wings 102, six recessed regions 106, planar layer 105 and sheath 101.
  • FIG. 4b shows a wound care article 100 according to the invention with a central region 103 and radial incisions 108 in the central area, six wings 102 with lateral incisions in the wing 107, recessed areas 106, areal layer 105 and shell 101.
  • FIG. 5 a shows a wound care article 100 according to the invention with two kidney-shaped wings 102, central area 103 and opening 109 in the central area 103.
  • FIG. 5 b shows a wound care article 100 according to the invention with three wings 102, central area 103 and opening 109 in the central area 103, with sheath 101 and recessed areas 106.
  • FIGS. FIGS. 6a and 6b show the lining of a cavity 110 with a wound care article 100 according to the invention with folded-up wings 102, which partially overlap and, if appropriate, wings that are bent at the incisions on the wings 107. In this way, a secure hold of the wound care article according to the invention is guaranteed to said body part, and the wound care article is thus able to be in contact over its entire surface with the wound to be treated.
  • FIG. 7a and 7b show the lining of a cavity 110 with an alternative wound care article 100 according to the invention.
  • the wound care article shown in FIG. 7a corresponds to the type shown in FIG. 4a.
  • the wound care article shown in FIG. 7b corresponds to the type shown in FIG. 2a.
  • Figs. 8, 9, 10 and 11 show the placement of a wound care article 100 of the invention in a convex topology body region, namely the knee (FIG. 8), heel (FIG. 9), breast (FIG. 10) and elbow (FIG 11).
  • the wound care article according to the invention can be provided on the wound-facing side with an adhesive coating (for example in the manner of a border dressing).
  • it can be provided that it is fixed in a conventional manner, for example with adhesive tape or the like.
  • FIGS. 12-21 show further possible embodiments, partly with a slot or recess (reference numeral 111) incorporated in the envelope for transferring the wind care article around a catheter, a drainage tube or a cannula (FIG. 13) or for coupling two or more Wound care article to each other (Fig 14a, Fig. 14b) by overlapping arrangement.
  • the sheath of the wound care article in particular for the latter purpose also have a plurality of slots or recesses, as shown for example in Fig. 19.
  • Said slot or said recess may also be covered by a tear-away portion (reference numeral 112 in Figs. 15a and b) which is secured to the material of the sheath, for example by means of perforations, so that it is uncovered by tearing portion 112 only when it is used.
  • FIGS. 17-19 show that the flat layer can also have incisions 113 in its central area. These facilitate the foldability of the wound care article, for example, when arranged in a trench-shaped cavity. Something similar is shown in Fig. 16, where it is also apparent that the wings of the sheet can be different in size.
  • the radial incisions do not necessarily have to be linear. As shown in Figures 20 and 21, the radial incisions 114 may also be made meandering or undulating, with both parallel edges and coning or diverging edges. In this way, in the case of an arrangement in a cavity or a body region with a convex topology, it is ensured that liquid flowing off in the region of the incisions sooner or later touches the edges of the wings and is picked up reliably.
  • the incisions may also be sickle-shaped as shown in Figs.
  • the Figs. 22 and 23 show kits containing at least one wound care article 100 according to one of the preceding claims and at least one adhesive device.
  • These adhesive devices can be designed in the form of adhesive plaster-like adhesive strips which are delivered in separate or the same packaging as the wound care articles.
  • the adhesive strips can be designed to be elastic, have a peelable protective film and have an adhesive layer, for example, of a silicone, acrylate or hydrocolloid adhesive.
  • the adhesive strips which may otherwise also be attached to the wound care article and / or form an integral part thereof, the wound care article can be attached to the skin of the patient.
  • the adhesive strips can be arranged in situ centrally (FIG. 22) or tangentially or peripherally (FIG. 23) on the wound care article.
  • the adhesive strips have a curved shape (for example in the form of a circular arc section), as shown in FIG.
  • a wound care article (100) according to the invention having a radially symmetrical circumferential shape in the form of a quadrilateral with rounded corners. This creates a kind of cloverleaf.
  • the wound care article is shown without and in Fig. 25 with sheath.
  • the wound care article also incisions to the central area, which may also be omitted.
  • FIG. 26 shows further possible uses of the wound care article according to the invention.

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  • Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Vascular Medicine (AREA)
  • Otolaryngology (AREA)
  • Hematology (AREA)
  • Anesthesiology (AREA)
  • Epidemiology (AREA)
  • Materials For Medical Uses (AREA)
  • Surgical Instruments (AREA)

Abstract

L'invention concerne un article pour le soin des plaies (100) comprenant au moins une couche plane (105), caractérisé en ce que la couche plane (105) présente au moins deux ailettes (102) et une zone centrale (103), les ailettes (102) étant disposées autour de la zone centrale (103) et les ailettes (102) étant reliées les unes aux autres par la zone centrale (103).
EP12720839.5A 2011-05-02 2012-05-02 Article pour le soin des plaies Withdrawn EP2704674A1 (fr)

Applications Claiming Priority (3)

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DE102011050047A DE102011050047A1 (de) 2011-05-02 2011-05-02 Wundpflegeartikel für Kavitäten
DE102012101912 2012-03-07
PCT/EP2012/057980 WO2012150235A1 (fr) 2011-05-02 2012-05-02 Article pour le soin des plaies

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EP (1) EP2704674A1 (fr)
JP (1) JP2014512919A (fr)
CN (1) CN103648453A (fr)
AU (1) AU2012251680A1 (fr)
BR (1) BR112013028399A2 (fr)
CA (1) CA2834756A1 (fr)
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JP2014512919A (ja) 2014-05-29
AU2012251680A1 (en) 2013-11-14
DE202012101743U1 (de) 2012-08-06
CA2834756A1 (fr) 2012-11-08
BR112013028399A2 (pt) 2017-02-07
CN103648453A (zh) 2014-03-19
US20140188090A1 (en) 2014-07-03
WO2012150235A1 (fr) 2012-11-08

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