WO1994012134A1 - Pansements - Google Patents

Pansements Download PDF

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Publication number
WO1994012134A1
WO1994012134A1 PCT/GB1993/002382 GB9302382W WO9412134A1 WO 1994012134 A1 WO1994012134 A1 WO 1994012134A1 GB 9302382 W GB9302382 W GB 9302382W WO 9412134 A1 WO9412134 A1 WO 9412134A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
adhesive
hydrogel
dressing according
backing layer
Prior art date
Application number
PCT/GB1993/002382
Other languages
English (en)
Inventor
William John Ward
Philip Mark Croxford
Original Assignee
Smith & Nephew Plc
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 GB929224445A external-priority patent/GB9224445D0/en
Priority claimed from GB929224444A external-priority patent/GB9224444D0/en
Priority claimed from GB929225312A external-priority patent/GB9225312D0/en
Application filed by Smith & Nephew Plc filed Critical Smith & Nephew Plc
Priority to GB9510011A priority Critical patent/GB2287409A/en
Priority to JP6512885A priority patent/JPH08506028A/ja
Priority to EP94900233A priority patent/EP0674498A1/fr
Priority to AU55306/94A priority patent/AU5530694A/en
Publication of WO1994012134A1 publication Critical patent/WO1994012134A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/58—Adhesives
    • 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 plasters or dressings
    • A61F13/023—Adhesive plasters or dressings wound covering film layers without a fluid handling layer
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/60—Liquid-swellable gel-forming materials, e.g. super-absorbents
    • 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
    • A61F2013/00361—Plasters
    • A61F2013/00795—Plasters special helping devices
    • A61F2013/00829—Plasters special helping devices rigid or semi-rigid backing

Definitions

  • This invention relates to a novel form of wound dressing and a novel method of treatment of wounds.
  • wound exudate in secreting skin wounds such as decubitus ulcers and surgical wounds promotes the growth of bacteria and other organisms which may delay healing of the wound and in some cases cause infection of the wound. It is well established that wound healing may be accelerated if
  • the wound is kept in a 'moist condition' but that excess exudate must be removed from the wound.
  • Polyurethane films have been used as dressings in recent years, such films have a moisture vapour ' transmission rate (MVTR) which allows excess exudate to permeate whilst keeping a residual amount of moisture around the wound area. More recently hydrogel materials have been used, sometimes in conjunction with a polyurethane film dressing to
  • European Patent Application No.424165 describes a reservoir of a hydrogel in a vacuum formed well in a thin film dressing layer provided with an adhesive perimeter portion.
  • the thin film layer is provided with a support layer around the perimeter of the vacuum formed well.
  • the dressing layer may be provided with a grid pattern to permit measurement of wound healing.
  • European Patent Application No.426422 discloses a
  • the foam dam dressings of the prior art have the disadvantage that the shoulder of the dam is aligned with the edge of the dressing, the shoulder easily catches when a patient moves, thus dislodging the
  • an adhesive dressing comprising a backing layer having a
  • the outer edge of the backing layer may vary according to the size and nature of the wound to be treated. However, in general we prefer the support layer to extend beyond the backing layer by approximately 1 - 5 cm, more preferably by 1 - 4 cm and most preferably by 1 - 3 cm. The support layer may extend over one edge, two edges or all four edges of the backing layer.
  • the pressure sensitive adhesive may be a continuous adhesive layer or may be non-continuous.
  • the pressure sensitive adhesive layer is non-continuous, eg. a pattern spread adhesive.
  • Such adhesive free regions may be manufactured by coating the backing layer with an adhesive in the presence of a template.
  • the backing layer may be from 0.1 to 5.0mm wide, preferably from 0.1 to 20mm wide, more preferably from 1 to 10mm wide.
  • the hydrogel layer may optionally be provided 0 with a support member.
  • the support member may be integral to the hydrogel layer or may be adjacent the periphery of the hydrogel layer such peripheral support members may surround all or part of the hydrogel.
  • a peripheral support member is J ' a foam dam member which preferably surrounds the whole of the hydrogel layer.
  • the dam member may surround the whole of the hydrogel layer.
  • the exposed surface of the dam member 0 may also optionally be coated with a pressure sensitive adhesive layer, but preferably, the wound facing side of the dam member is adhesive free.
  • the dam member may define any conventional shape, eg. circular, square or rectangular.
  • the dam member may define an internal well which is different in shape to that defined by it's external walls.
  • the dam member may be rectangular shaped on it's external walls whilst defining a circular shaped well.
  • the corners of the dam member and/or the backing layer may be rounded in order to further alleviate the problem of the dressing, when applied, catching and causing discomfort to the patient.
  • the shoulder of the dam member adjacent to the backing layer may be bevelled in order to alleviate 'dressing lift'.
  • 'dressing lift' may also be alleviated by profiling the dam member such that it's thickness at it's outer edge may be less than that at its inner edge.
  • 'dressing lift' may be alleviated in the support free dressing by profiling the hydrogel layer.
  • the hydrogel layer is a square or rectangular slab, the corners of the slab may be of less thickness than the remainder. Alternatively, the whole of the outer edge of the slab may be of less thickness than the remainder.
  • edge profiling would of course be applicable to all shapes of hydrogel layer.
  • the support member may be a reticulated member, or may comprise a scrim or gauze of material.
  • the integral s.upport layer may be a scrim, gauze or net of material.
  • the integral support member may comprise a conformable sheet, eg. a plastics sheet provided with a plurality of apertures or, for example, a polyurethane net, eg. a HYPOL net.
  • the integral support member preferably comprises material which absorbs wound exudate, eg. cotton, although non-absorbent materials may also be used.
  • the integral support member will be within the hydrogel layer but may be adjacent either the wound facing or the backing layer facing surface. It is preferable however that the integral support will lie
  • the integral support preferably extends substantially to the edges of the hydrogel
  • the backing layer may comprise any of those materials which are conventionally employed to
  • Suitable materials include those described in UK Patent No. 1280631. European Patents Nos. 51935, 91800 and 178740. Particularly apt materials are polyurethanes, for example polyester or polyether polyurethanes known as i **i Estanes (Trade Mark). Other apt materials are elastomeric polyether polyesters, for example those known as Hytrels (Trade Mark) and polyether polyamides, for example those known as Pebaxes (Trade Mark) . Other favoured materials include hydrophilic 0 polymers such as hydrophilic polyurethanes including those described in UK Patent No. 2093190B, especially the polyurethane described in Example 2 therein. Such materials will typically take up from 5 to 95% by weight of water.
  • the materials employed in the dressings of the invention may be moisture vapour permeable.
  • the moisture vapour transmission rate of the materials employed in the present invention may be measured by a procedure known as the Payne Cup method, which method is described in European Patent Application No. 360458. The method uses a cup 1.5cm deep with a
  • the inner diameter of the flange is such to provide an area for moisture vapour transmission of
  • the overall moisture vapour transmission rate (MVTR) of the dressing should equate to 500 - 7000 gm -2 24h-1 based on composite 0 properties, ie in heavily exuding wounds the gel may act as a 'sink' and enable the moisture vapour permeable film to "flash off" excess fluid. In lightly exuding wounds the MVTR should be sufficient to maintain a moist environment and prevent the wound drying out.
  • the backing layer may comprise a polyurethane film or alternatively the backing layer may comprise a HYTREL (TM) .
  • the backing layer may have a thickness of from 15 to lOO ⁇ m, preferably 20 to 80 ⁇ m and more preferably 25 to 50 ⁇ m, for example 27.5 ⁇ , 30 ⁇ m, 35 ⁇ m, 40 ⁇ m. 0
  • the pressure sensitive adhesive layer may be formed from an adhesive which is conventionally used for contact with the skin.
  • Suitable adhesives include polyvinyl alkyl ether adhesive and acrylate ester 5 . copolymer adhesives. Suitable adhesives are described in UK Patent No. 1280631 and European Patents Nos. 35399 and 51935.
  • the adhesive is a polyvinyl ether adhesive or an acrylate ester copolymer adhesive formed by the copolymerisation of 0 2-ethylhexyl acrylate, butyl acrylate and acrylic acid.
  • the adhesive layer may be from 15 to 65 ⁇ m thick, for example 20 to 40 ⁇ m thick and is applied at a :3 • weight per unit area of 10 to 75gsm, more suitably 15 to 65gsm and preferably 25 to 40gsm.
  • the removable protector is preferably a silicone coated release paper.
  • the removable protector may have a weight per unit area of 100 to 140gsm, and preferably 110 to 130gsm, for example 120gsm.
  • the removable protector may be divided into two or more pieces. Preferably at least one of the protector pieces is significantly larger than the other or others and covers a major proportion of the adhesive layer. It is desirable that the stripping load of the support layer from the backing layer is
  • the hydrogel layer may be any polymer which is characterised by it's hydrophilicity and insolubility in water.
  • Such polymers preferably comprise a cross linked macromolecular network.
  • Such hydrophilic polymers may be amphoteric, eg. containing anionic and " 5* cationic monomers; anionic, eg. containing carboxylate, sulphonate, phosphonate groups; cationic, eg. containing quaternary ammonium ions; zwitterionic, eg. containing monomers with a cationic and anionic group; or non-ionic, eg. containing amide, hydroxyl, ⁇ - lactam, polyether, polyhydroxyethylmethacrylate or polyvinyl pyrrolidone (PVP) groups.
  • PVP polyvinyl pyrrolidone
  • Preferred hydrogel materials are those containing polyethylene oxide or PVP.
  • Such hydrogels preferably - contain from 5 to 30% w/w of the hydrophilic polymer, preferably from 5 to 20% w/w, most preferably 5 to 15% w/w, eg. 10% w/w.
  • the hydrogel material may be an aqueous or a 0 saline solution in a gel-like phase and may comprise from about 5% to about 30% by weight of a polyhydric alcohol selected from the group consisting of polypropylene glycol, polyethylene glycol and glycerine.
  • the hydrogel may also contain from about 8% to about 14% by weight of an isophorone disocyanate terminated prepolymer, and, when saline, up to about 1% by weight of a salt such as sodium chloride, and the balance water.
  • the hydrogel comprises a water-insoluble
  • water-swellable cross-linked cellulose derivative, water and a polyol component and the cellulose derivative comprises less than 10% by weight of the gel.
  • hydrogels which may be mentioned include those described in patent application no. WO 92/16245.
  • the hydrogel may be relatively more mobile than other preferred
  • hydrogels although the less mobile hydrogels may also be used.
  • the removable protector extends beyond the backing layer at one or more edges, preferably at both edges and comprises first and second parts, the first part having a portion extending away from the adhesive surface and bent back to form a v-shape and the second 0 part having a portion extending away from the adhesive and overlying the v-shaped first part.
  • the conformable support layer may be provided with a grid marking in order to enable wound healing to be observed.
  • the extensions of the conformable support layer beyond one or more edges of the backing layer are preferably non-adhesive and thus facilitate the removal of the conformable support layer from the backing layer.
  • the present invention provides a method of treating a wound which comprises applying thereto an adhesive dressing as hereinbefore described by removing the removable protector, applying the hydrogel layer to the wound and the exposed adhesive layer to the skin and then removing the continuous conformable support layer.
  • an adhesive dressing as hereinbefore described.
  • This method comprises taking a backing layer provided with a support layer on a first side.
  • the support layer preferably being provided with a grid pattern
  • a second side of the backing layer is coated with an adhesive layer and then a protector is applied to the adhesive using conventional methods known per se.
  • the dressing may optionally be wound onto a reel. Subsequently, the reel is unrolled, the protector is removed from the adhesive layer, the hydrogel layer, which may be in the form of a 'slab' is positioned onto the adhesive. The protector is then reapplied and the dressings may be cut to size.
  • the process of manufacture will be as hereinbefore described.
  • the dam member may be applied after the hydrogel layer or the hydrogel layer may be supported in the dam member prior to applying the supported hydrogel layer to the backing layer.
  • the dam member is applied to the backing layer and then the hydrogel layer is applied.
  • the dressing may be placed in a bacteria-proof pack, sealed and sterilised by conventional methods, including, for example, using ethylene oxide or irradiation.
  • Figure 1 is a cross section through an embodiment of a dressing according to the invention.
  • Figure 2 is an expanded perspective view of the embodiment of Figure 1.
  • Figure 3 is a cross section of an embodiment of the invention provided with a peripheral dam member
  • Figure 4 is a cross section of a embodiment of 0 the invention provided with an integral support member.
  • Figures 1 and 2 shows an adhesive dressing (1) which comprises a backing layer (2) formed from a film of polyether polyurethane.
  • the backing layer (2) has on one surface a pressure sensitive adhesive layer (3) formed from polyacrylate ester adhesive.
  • non-adhesive surface of the backing layer (2) is a support layer (4) .
  • the support layer (4) may comprise a silicone or polyethylene coated paper or a transparent film of polyethylene or polypropylene.
  • the support layer (4) is marked with a grid (5) to 0 enable wound healing to be measured.
  • a hydrogel (6) is attached to the adhesive layer (3) .
  • the adhesive layer (3) and the hydrogel (6) are provided with a protector (7) made from a silicone coated release paper. 5
  • the protector (7) comprises two components.
  • a large protector (8) is essentially flat and overlaps the smaller protector (9) which smaller protector (9) is folded into a v-shape. 0
  • the support layer (4) is provided with edges (10) which extend beyond the edge (11) of the backing layer (2) and adhesive layer (3) .
  • the dressing is provided with a dam member (12) around the periphery of the hydrogel layer (6) .
  • the hydrogel layer (6) is provided 0 with an integral support member (13) being a scrim.
  • the larger piece (8) of the protector is removed first and the dressing held by the overlying portion of piece (9) and edge of the support layer (4) .
  • the smaller piece (9) and the support layer (4) may be removed.
  • the smaller protector piece (9) may be removed before application and the dressing handled asectically by the edges of the support layer (4) which project beyond the adhesive (3) and film (2) layers.

Abstract

L'invention concerne un pansement (1) constitué d'une couche dorsale (2) dont une surface présente une couche d'adhésif de contact (3), d'une couche d'hydrogel (6) sur une partie de la surface adhésive, d'un protecteur amovible (7) qui recouvre la couche adhésive exposée (3) et la couche d'hydrogel (6), et d'une couche de support conformable continue (4) fixée de manière réversible à la surface non adhésive de la couche dorsale de laquelle elle dépasse en un ou plusieurs endroits.
PCT/GB1993/002382 1992-11-21 1993-11-19 Pansements WO1994012134A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB9510011A GB2287409A (en) 1992-11-21 1993-11-19 Wound dressings
JP6512885A JPH08506028A (ja) 1992-11-21 1993-11-19 創傷用ドレッシング
EP94900233A EP0674498A1 (fr) 1992-11-21 1993-11-19 Pansements
AU55306/94A AU5530694A (en) 1992-11-21 1993-11-19 Wound dressings

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
GB929224445A GB9224445D0 (en) 1992-11-21 1992-11-21 Dressing
GB929224444A GB9224444D0 (en) 1992-11-21 1992-11-21 Dressing
GB9224444.1 1992-11-21
GB9224445.8 1992-11-21
GB929225312A GB9225312D0 (en) 1992-12-03 1992-12-03 Dressing
GB9225312.9 1992-12-03

Publications (1)

Publication Number Publication Date
WO1994012134A1 true WO1994012134A1 (fr) 1994-06-09

Family

ID=27266474

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1993/002382 WO1994012134A1 (fr) 1992-11-21 1993-11-19 Pansements

Country Status (6)

Country Link
EP (1) EP0674498A1 (fr)
JP (1) JPH08506028A (fr)
AU (1) AU5530694A (fr)
CA (1) CA2149875A1 (fr)
GB (1) GB2287409A (fr)
WO (1) WO1994012134A1 (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997025012A1 (fr) * 1996-01-12 1997-07-17 Smith & Nephew Plc Pansement
US5846214A (en) * 1996-03-29 1998-12-08 Nichiban Company Limited PVA hydrogel, hydrogel laminate using the same and hydrogel wound-dressing material using the same
WO2001008619A1 (fr) * 1999-07-30 2001-02-08 3M Innovative Properties Company Composite adhesif a phases distinctes
DK200000278A (da) * 2000-02-22 2001-02-24 Coloplast As Sårbandage
DE10047673A1 (de) * 2000-09-22 2002-04-11 Beiersdorf Ag Verband
DE10047884A1 (de) * 2000-09-22 2002-04-11 Beiersdorf Ag Selbsthaftende Wundverbände mit haftfähigem Wundversorgungsbereich
US6927315B1 (en) 1999-07-30 2005-08-09 3M Innovative Properties Company Adhesive composite having distinct phases
WO2016018706A1 (fr) 2014-07-31 2016-02-04 Johnson & Johnson Consumer Inc. Ensemble de pansement pour plaie
WO2016018705A1 (fr) 2014-07-31 2016-02-04 Johnson & Johnson Consumer Inc. Ensemble pansement pour plaie à deux étages
US9457123B2 (en) 2008-09-24 2016-10-04 3M Innovative Properties Company Hydrogels with release element
US10449516B2 (en) 2016-05-16 2019-10-22 Technion Research & Development Foundation Limited Superabsorbent polymeric structures
US10456497B2 (en) 2014-09-10 2019-10-29 C. R. Bard, Inc. Protective dressing for skin-placed medical device
US10851218B2 (en) 2016-06-26 2020-12-01 Technion Research & Development Foundation Limited Polyhipes by interfacial step-growth polymerization
US11401386B2 (en) 2017-07-19 2022-08-02 Technion Research & Development Foundation Limited Doubly-crosslinked, emulsion-templated hydrogels through reversible metal coordination
US11530285B2 (en) 2016-08-16 2022-12-20 Technion Research & Development Foundation Limited PolyHIPE-based substance-releasing systems
US11548986B2 (en) 2017-11-02 2023-01-10 Technion Research & Development Foundation Limited HIPE-templated zwitterionic hydrogels, process of preparation and uses thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK0604103T3 (da) * 1992-12-15 1999-09-27 Johnson & Johnson Consumer Hydrogellaminat, forbindinger og materialer samt fremgangsmåder til fremstilling deraf
US5897516A (en) * 1996-09-27 1999-04-27 Bristol-Myers Squibb Company Method of treating a wound by monitoring the swelling of a hydrocolloid layer in a wound dressing

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0091800A1 (fr) * 1982-04-08 1983-10-19 SMITH & NEPHEW plc Pansement chirurgical adhésif
EP0360458A1 (fr) * 1988-09-07 1990-03-28 SMITH & NEPHEW plc Bandage adhésif, sa préparation et son utilisation
EP0426422A2 (fr) * 1989-11-01 1991-05-08 Ndm Acquisition Corp. Pansement en hydrogel
US5160328A (en) * 1991-08-07 1992-11-03 Ndm Acquisition Corp. Hydrogel bandage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0091800A1 (fr) * 1982-04-08 1983-10-19 SMITH & NEPHEW plc Pansement chirurgical adhésif
EP0360458A1 (fr) * 1988-09-07 1990-03-28 SMITH & NEPHEW plc Bandage adhésif, sa préparation et son utilisation
EP0426422A2 (fr) * 1989-11-01 1991-05-08 Ndm Acquisition Corp. Pansement en hydrogel
US5160328A (en) * 1991-08-07 1992-11-03 Ndm Acquisition Corp. Hydrogel bandage

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997025012A1 (fr) * 1996-01-12 1997-07-17 Smith & Nephew Plc Pansement
AU716270B2 (en) * 1996-01-12 2000-02-24 Smith & Nephew Plc Wound dressing
US5846214A (en) * 1996-03-29 1998-12-08 Nichiban Company Limited PVA hydrogel, hydrogel laminate using the same and hydrogel wound-dressing material using the same
WO2001008619A1 (fr) * 1999-07-30 2001-02-08 3M Innovative Properties Company Composite adhesif a phases distinctes
US6927315B1 (en) 1999-07-30 2005-08-09 3M Innovative Properties Company Adhesive composite having distinct phases
DK200000278A (da) * 2000-02-22 2001-02-24 Coloplast As Sårbandage
DE10047673A1 (de) * 2000-09-22 2002-04-11 Beiersdorf Ag Verband
DE10047884A1 (de) * 2000-09-22 2002-04-11 Beiersdorf Ag Selbsthaftende Wundverbände mit haftfähigem Wundversorgungsbereich
US9457123B2 (en) 2008-09-24 2016-10-04 3M Innovative Properties Company Hydrogels with release element
EP2365831B2 (fr) † 2008-09-24 2017-01-04 3M Innovative Properties Company Hydrogels comprenant un élément de libération
US10940050B2 (en) 2014-07-31 2021-03-09 Johnson & Johnson Consumer Inc. Wound dressing assembly
WO2016018706A1 (fr) 2014-07-31 2016-02-04 Johnson & Johnson Consumer Inc. Ensemble de pansement pour plaie
US10016310B2 (en) 2014-07-31 2018-07-10 Johnson & Johnson Consumer Inc. Wound dressing assembly
US10034799B2 (en) 2014-07-31 2018-07-31 Johnson & Johnson Consumer Inc. Two-stage wound dressing assembly
EP3427708A1 (fr) 2014-07-31 2019-01-16 Johnson & Johnson Consumer Inc. Ensemble pansement de plaie
WO2016018705A1 (fr) 2014-07-31 2016-02-04 Johnson & Johnson Consumer Inc. Ensemble pansement pour plaie à deux étages
US10456497B2 (en) 2014-09-10 2019-10-29 C. R. Bard, Inc. Protective dressing for skin-placed medical device
US10449516B2 (en) 2016-05-16 2019-10-22 Technion Research & Development Foundation Limited Superabsorbent polymeric structures
US10994260B2 (en) 2016-05-16 2021-05-04 Technion Research & Development Foundation Limited Superabsorbent polymeric structures
US10851218B2 (en) 2016-06-26 2020-12-01 Technion Research & Development Foundation Limited Polyhipes by interfacial step-growth polymerization
US11530285B2 (en) 2016-08-16 2022-12-20 Technion Research & Development Foundation Limited PolyHIPE-based substance-releasing systems
US11401386B2 (en) 2017-07-19 2022-08-02 Technion Research & Development Foundation Limited Doubly-crosslinked, emulsion-templated hydrogels through reversible metal coordination
US11548986B2 (en) 2017-11-02 2023-01-10 Technion Research & Development Foundation Limited HIPE-templated zwitterionic hydrogels, process of preparation and uses thereof

Also Published As

Publication number Publication date
JPH08506028A (ja) 1996-07-02
GB2287409A (en) 1995-09-20
EP0674498A1 (fr) 1995-10-04
GB9510011D0 (en) 1995-07-19
CA2149875A1 (fr) 1994-06-09
AU5530694A (en) 1994-06-22

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