US20030180346A1 - Silver containing wound dressing - Google Patents

Silver containing wound dressing Download PDF

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Publication number
US20030180346A1
US20030180346A1 US10/311,674 US31167402A US2003180346A1 US 20030180346 A1 US20030180346 A1 US 20030180346A1 US 31167402 A US31167402 A US 31167402A US 2003180346 A1 US2003180346 A1 US 2003180346A1
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US
United States
Prior art keywords
fibre
wound dressing
silver
weight
dressing 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.)
Abandoned
Application number
US10/311,674
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English (en)
Inventor
David Woods
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.)
Convatec Ltd
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9899858&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US20030180346(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Assigned to ACORDIS SPECIALITY FIBRES LIMITED reassignment ACORDIS SPECIALITY FIBRES LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WOODS, DAVID MALCOLM
Publication of US20030180346A1 publication Critical patent/US20030180346A1/en
Assigned to CONVATEC LIMITED reassignment CONVATEC LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ACORDIS SPECIALITY FIBRES LIMITED
Assigned to J.P. MORGAN EUROPE LIMITED reassignment J.P. MORGAN EUROPE LIMITED SECURITY AGREEMENT Assignors: CONVATEC LIMITED
Assigned to CONVATEC LIMITED reassignment CONVATEC LIMITED RELEASE OF SECURITY INTEREST AT 021901/0518 Assignors: J.P. MORGAN EUROPE LIMITED
Assigned to JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT reassignment JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT SECURITY AGREEMENT Assignors: CONVATEC LIMITED
Assigned to JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT reassignment JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT AMENDED AND RESTATED SECURITY AGREEMENT Assignors: CONVATEC LIMITED
Priority to US13/767,656 priority Critical patent/US8728513B2/en
Priority to US14/280,512 priority patent/US9066989B2/en
Priority to US14/696,216 priority patent/US9345805B2/en
Priority to US15/162,890 priority patent/US10010647B2/en
Assigned to CONVATEC TECHNOLOGIES, INC., UNOMEDICAL A/S, UNOMEDICAL LIMITED, CONVATEC LIMITED reassignment CONVATEC TECHNOLOGIES, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: JPMORGAN CHASE BANK, N.A.
Priority to US16/005,467 priority patent/US10391197B2/en
Abandoned legal-status Critical Current

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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
    • A61L15/46—Deodorants or malodour counteractants, e.g. to inhibit the formation of ammonia or bacteria
    • 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
    • A61L15/18—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing inorganic materials
    • 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
    • A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
    • A61L15/28—Polysaccharides or their derivatives
    • 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
    • A61L15/44—Medicaments
    • 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
    • A61L26/00—Chemical aspects of, or use of materials for, wound dressings or bandages in liquid, gel or powder form
    • A61L26/0009—Chemical aspects of, or use of materials for, wound dressings or bandages in liquid, gel or powder form containing macromolecular materials
    • A61L26/0023—Polysaccharides
    • 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
    • A61L26/00—Chemical aspects of, or use of materials for, wound dressings or bandages in liquid, gel or powder form
    • A61L26/0009—Chemical aspects of, or use of materials for, wound dressings or bandages in liquid, gel or powder form containing macromolecular materials
    • A61L26/0052—Mixtures of macromolecular compounds
    • 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
    • A61L26/00—Chemical aspects of, or use of materials for, wound dressings or bandages in liquid, gel or powder form
    • A61L26/0061—Use of materials characterised by their function or physical properties
    • A61L26/0066—Medicaments; Biocides
    • 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
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/10—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing inorganic materials
    • A61L2300/102—Metals or metal compounds, e.g. salts such as bicarbonates, carbonates, oxides, zeolites, silicates
    • A61L2300/104—Silver, e.g. silver sulfadiazine
    • 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
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
    • A61L2300/404—Biocides, antimicrobial agents, antiseptic agents
    • 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
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
    • A61L2300/42—Anti-thrombotic agents, anticoagulants, anti-platelet agents
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24033—Structurally defined web or sheet [e.g., overall dimension, etc.] including stitching and discrete fastener[s], coating or bond
    • Y10T428/24041—Discontinuous or differential coating, impregnation, or bond
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
    • Y10T428/249928—Fiber embedded in a ceramic, glass, or carbon matrix
    • Y10T428/249929—Fibers are aligned substantially parallel
    • Y10T428/24993—Fiber is precoated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2525—Coating or impregnation functions biologically [e.g., insect repellent, antiseptic, insecticide, bactericide, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/40—Knit fabric [i.e., knit strand or strip material]
    • Y10T442/475—Including a free metal or alloy constituent
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/40—Knit fabric [i.e., knit strand or strip material]
    • Y10T442/475—Including a free metal or alloy constituent
    • Y10T442/481—Chemically deposited metal layer [e.g., chemical precipitation or electrochemical deposition or plating, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/654—Including a free metal or alloy constituent
    • Y10T442/655—Metal or metal-coated strand or fiber material

Definitions

  • This invention relates to a wound dressing, in particular to a wound dressing having antimicrobial activity.
  • European Patent Application No. 707,793 discloses a silver-containing antimicrobial agent which comprises carboxymethylcellulose containing silver in an amount of 0.02 to 1 percent by weight and having a degree of substitution of at least 0.4.
  • Japanese Published Unexamnined Patent Application 11-001,895 discloses a hygienic product such as a disposable diaper, sanitary napkin or incontinence pad which comprises water-insoluble carboxymethylcellulose (derived from woodpulp) containing 0.32% by weight silver ions.
  • the first fibre is preferably substantially insoluble in water and preferably comprises a sodium carboxyinethylcellulose fibre, an alginate fibre, a chitosan or chitosan derivative fibre or an acrylic fibre.
  • the fibre is a carboxymethylcellulose fibre, it preferably has a degree of substitution between 0.1 and 0.4.
  • the fibre is an acrylic fibre, it is preferably an acrylic fibre which incorporates a comonomer such as itaconic acid or 2-acrylamido methyl propane sulphonic acid to provide dye-sites in the fibre.
  • Wound dressings in which the first fibre is a carboxymethylcellulose fibre are particularly preferred.
  • the second fibre may be similar or different to the first fibre. Similar fibres are preferably used.
  • the second fibre should be such as not to discolour to an objectionable degree in light, and as such should, for example, contain no silver or such low levels of silver that it does not discolour at all or discolours only to an degree which is not objectionable aesthetically.
  • the silver ions are preferably introduced into the first CMC fibre by ion-exchange, for example by contacting CMC with an aqueous solution of a salt such as, silver(I) nitrate.
  • a salt such as, silver(I) nitrate.
  • CMC often contains sodium chloride as a by product of the reaction between cellulose and chloroacetic acid and as silver chloride is highly insoluble. It maybe preferred to perform the ion-exchange reaction on a salt free grade of CMC. It is preferred that the balance of the carboxyl groups in the CMC be neutralised with sodium ions.
  • the CMC is preferably derived from lyocell, as disclosed for example in WO 93/12275, WO 94/16746 and PCT/GB99/02093.
  • the fibrous CMC is preferably in the form of staple fibre or continuous filament yarn. It is preferably contained within a textile article such as a woven, knitted or most preferably a nonwoven fabric, such as a needlepunched nonwoven fabric.
  • the dressings of the invention are preferably gel-forming, which makes them advantageously low-adherent to wounds and consequently easy to remove. They are soft, conformable and absorbent. Silver metal ions are released slowly over an extended period of time from a wetted dressing of the invention.
  • the second fibre which does not contain silver is preferably also CMC, but other kinds of gel-forming fibre or of textile fibre may also be utilised. If the dressings are blended from unexposed fibre, on exposure to light, such dressings develop either a speckled appearance or a light brown or light grey colour which is not unsightly. However, it is preferred to pre-expose the silver-containing fibre to light before blending, so that after blending the dressing is light stable and the uniformity of blending can be checked visually.
  • wound dressings of the invention are useful in the treatment of infected wounds, and as a prophylactic measure against infection of uninfected wounds, also for the reduction or elimination of unpleasant odours produced by wounds.
  • Blending was accomplished by carrying out a carding operation twice to achieve a uniform blend, on hand pre-mixed fibre.
  • the carded web was then cross-folded to give the desired basis weight.
  • the web was then bonded on a needle loom to give a coherent web from which individual dressings were cut.
  • a conventional carboxymethyl cellulose fibre control sample was manufactured by the same method.
  • the master batch material was produced by the soaking of CMC fibre tow in silver nitrate and the absorbency tests were first of all carried out on tow using a free swell test. It was found that the CMC fibre control had an absorbency of 28 g/g and the silver CMC had an absorbency of 30 g/g. These differences were not considered to be significant.
  • the wound treatment products utilising the invention are unlikely to be left on a wound for more than a few days, and certainly no more than a week, so that it an be seen that a blend containing 0.5% silver retains its efficiency in terms of antimicrobial effect for at least twice the period that would be required in practice.
  • a solution of water (33.1 g) and industrial methylated spirit (IMS) (36.0 g) was made up in a black glass bottle suitable for rolling on a bottle roller. To it was added silver nitrate (30.0 g) and the latter was stirred until it dissolved. No heat was required. To this solution was added 12g of high manuronic calcium alginate tow and the whole was rolled on a bottle roller for four hours. After this period of time the tow was removed and washed in a solution (70 g) containing IMS and water as a 50/50 mixture.
  • IMS industrial methylated spirit
  • Soft finish in the form of polysorbate 20 (0.7 g) was dissolved in (70 g) solution of IMS/water as a 95/5 mixture and the tow was soaked in this medium for approximately 50 minutes. The silver alginate master batch was then dried in a fume cupboard to give a product having 13.7% of silver overall on the fibre.
  • the diluted silver alginate fibre was then carded, cross-folded and needled into a non-woven web. By calculation the final product would contain silver at an average level of 0.6%. It had a light grey-brown flecked mottled appearance.
  • the invention also contemplates multiple layer dressings some or all of which layers may comprise blended product incorporated silver additions.
  • a silver containing blended layer of a non-gel forming fibre such as a silver containing acrylic fibre blended with pure acrylic fibre could be faced with a wound contact layer of a gel forming fibre.
  • An example of the contact layer could be an alginate fibre and the alginate layer could be blended with a silver added fibre or may have no silver at all, being a simple gel forming alginate fibre.

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Hematology (AREA)
  • Inorganic Chemistry (AREA)
  • Materials For Medical Uses (AREA)
  • Nonwoven Fabrics (AREA)
  • Artificial Filaments (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
US10/311,674 2000-09-21 2001-09-21 Silver containing wound dressing Abandoned US20030180346A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US13/767,656 US8728513B2 (en) 2000-09-21 2013-02-14 Silver containing wound dressing
US14/280,512 US9066989B2 (en) 2000-09-21 2014-05-16 Silver containing wound dressing
US14/696,216 US9345805B2 (en) 2000-09-21 2015-04-24 Silver containing wound dressing
US15/162,890 US10010647B2 (en) 2000-09-21 2016-05-24 Silver containing wound dressing
US16/005,467 US10391197B2 (en) 2000-09-21 2018-06-11 Silver containing wound dressing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0023155.5 2000-09-21
GB0023155A GB2370226A (en) 2000-09-21 2000-09-21 Wound dressing

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2001/004204 A-371-Of-International WO2002024240A1 (en) 2000-09-21 2001-09-21 Silver containing wound dressing

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US13/767,656 Continuation US8728513B2 (en) 2000-09-21 2013-02-14 Silver containing wound dressing

Publications (1)

Publication Number Publication Date
US20030180346A1 true US20030180346A1 (en) 2003-09-25

Family

ID=9899858

Family Applications (6)

Application Number Title Priority Date Filing Date
US10/311,674 Abandoned US20030180346A1 (en) 2000-09-21 2001-09-21 Silver containing wound dressing
US13/767,656 Expired - Fee Related US8728513B2 (en) 2000-09-21 2013-02-14 Silver containing wound dressing
US14/280,512 Expired - Lifetime US9066989B2 (en) 2000-09-21 2014-05-16 Silver containing wound dressing
US14/696,216 Expired - Lifetime US9345805B2 (en) 2000-09-21 2015-04-24 Silver containing wound dressing
US15/162,890 Expired - Fee Related US10010647B2 (en) 2000-09-21 2016-05-24 Silver containing wound dressing
US16/005,467 Expired - Lifetime US10391197B2 (en) 2000-09-21 2018-06-11 Silver containing wound dressing

Family Applications After (5)

Application Number Title Priority Date Filing Date
US13/767,656 Expired - Fee Related US8728513B2 (en) 2000-09-21 2013-02-14 Silver containing wound dressing
US14/280,512 Expired - Lifetime US9066989B2 (en) 2000-09-21 2014-05-16 Silver containing wound dressing
US14/696,216 Expired - Lifetime US9345805B2 (en) 2000-09-21 2015-04-24 Silver containing wound dressing
US15/162,890 Expired - Fee Related US10010647B2 (en) 2000-09-21 2016-05-24 Silver containing wound dressing
US16/005,467 Expired - Lifetime US10391197B2 (en) 2000-09-21 2018-06-11 Silver containing wound dressing

Country Status (11)

Country Link
US (6) US20030180346A1 (de)
EP (1) EP1318842B1 (de)
JP (1) JP4837878B2 (de)
AT (1) ATE270903T1 (de)
AU (2) AU8790601A (de)
CA (1) CA2420150C (de)
DE (1) DE60104320T2 (de)
ES (1) ES2223911T3 (de)
GB (1) GB2370226A (de)
PT (1) PT1318842E (de)
WO (1) WO2002024240A1 (de)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030176827A1 (en) * 2001-12-20 2003-09-18 Nobel Fiber Technologies Antibiotic textile materials suitable for wound dressings and wound dressings incorporating the same
US20040241213A1 (en) * 2001-09-12 2004-12-02 Roger Bray Antibacterial wound dressing
US20050123621A1 (en) * 2003-12-05 2005-06-09 3M Innovative Properties Company Silver coatings and methods of manufacture
US20050182347A1 (en) * 2004-02-13 2005-08-18 Bishop Stephen M. Multi layered wound dressing
US20060034899A1 (en) * 2004-08-12 2006-02-16 Ylitalo Caroline M Biologically-active adhesive articles and methods of manufacture
US20060211972A1 (en) * 2003-03-28 2006-09-21 Brian Nielsen Wound dressing
US20060233889A1 (en) * 2005-04-14 2006-10-19 3M Innovative Properties Company Silver coatings and methods of manufacture
EP1925719A1 (de) * 2006-09-21 2008-05-28 Alcare Co., Ltd. Antibakterielle faser, verfahren zur herstellung der faser, antibakterielles faserprodukt mit der antibakteriellen faser, verfahren zur herstellung des produkts und verfahren zur vervielfältigung des produkts
US20080279960A1 (en) * 2006-01-13 2008-11-13 Burton Scott A Silver-Containing Antimicrobial Articles and Methods of Manufacture
US20100015208A1 (en) * 2008-03-19 2010-01-21 Bristol-Myers Squibb Company Antibacterial wound dressing
US20100098949A1 (en) * 2006-10-18 2010-04-22 Burton Scott A Antimicrobial articles and method of manufacture
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US9345805B2 (en) 2016-05-24
US20150224223A1 (en) 2015-08-13
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CA2420150C (en) 2011-06-28
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US9066989B2 (en) 2015-06-30
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US10391197B2 (en) 2019-08-27
US20160263274A1 (en) 2016-09-15
US20130217649A1 (en) 2013-08-22
US20140256676A1 (en) 2014-09-11

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