WO2009136160A1 - Wound dressing - Google Patents

Wound dressing Download PDF

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Publication number
WO2009136160A1
WO2009136160A1 PCT/GB2009/001138 GB2009001138W WO2009136160A1 WO 2009136160 A1 WO2009136160 A1 WO 2009136160A1 GB 2009001138 W GB2009001138 W GB 2009001138W WO 2009136160 A1 WO2009136160 A1 WO 2009136160A1
Authority
WO
WIPO (PCT)
Prior art keywords
stitching
fibres
lines
strip
dressing
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.)
Ceased
Application number
PCT/GB2009/001138
Other languages
English (en)
French (fr)
Inventor
Stephen Michael Cotton
Bryony Jayne Lee
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 Technologies Inc
Original Assignee
Convatec Technologies Inc
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
Application filed by Convatec Technologies Inc filed Critical Convatec Technologies Inc
Priority to SI200931479A priority Critical patent/SI2293752T1/sl
Priority to LTEP09742356.0T priority patent/LT2293752T/lt
Priority to CA2723547A priority patent/CA2723547C/en
Priority to MX2010011919A priority patent/MX340166B/es
Priority to DK09742356.0T priority patent/DK2293752T3/en
Priority to ES09742356.0T priority patent/ES2584182T3/es
Priority to AU2009245484A priority patent/AU2009245484B2/en
Priority to JP2011507984A priority patent/JP5738754B2/ja
Priority to NZ589348A priority patent/NZ589348A/xx
Priority to EP09742356.0A priority patent/EP2293752B1/en
Priority to HRP20160934TT priority patent/HRP20160934T1/hr
Publication of WO2009136160A1 publication Critical patent/WO2009136160A1/en
Anticipated expiration legal-status Critical
Ceased 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
    • A61F13/00051—Accessories for dressings
    • A61F13/00063—Accessories for dressings comprising medicaments or additives, e.g. odor control, PH control, debriding, antimicrobic
    • 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
    • A61F13/00987—Apparatus or processes for manufacturing non-adhesive dressings or bandages
    • A61F13/00991—Apparatus or processes for manufacturing non-adhesive dressings or bandages for treating webs, e.g. for moisturising, coating, impregnating or applying powder
    • A61F13/00995—Apparatus or processes for manufacturing non-adhesive dressings or bandages for treating webs, e.g. for moisturising, coating, impregnating or applying powder for mechanical treatments
    • 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
    • A61F13/01—Non-adhesive bandages or dressings
    • A61F13/01021—Non-adhesive bandages or dressings characterised by the structure of the dressing
    • 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
    • A61F13/36—Surgical swabs, e.g. for absorbency or packing body cavities during surgery
    • 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
    • A61F2013/00089—Wound bandages
    • A61F2013/00217—Wound bandages not adhering to the wound
    • A61F2013/00221—Wound bandages not adhering to the wound biodegradable, non-irritating
    • A61F2013/00225—Wound bandages not adhering to the wound biodegradable, non-irritating with non-degradable reinforcing layer, net or mesh
    • 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
    • A61F2013/00089—Wound bandages
    • A61F2013/00217—Wound bandages not adhering to the wound
    • A61F2013/00229—Wound bandages not adhering to the wound with alginate
    • 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
    • A61F2013/00089—Wound bandages
    • A61F2013/00238—Wound bandages characterised by way of knitting or weaving
    • 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
    • A61F2013/00365—Plasters use
    • A61F2013/00519—Plasters use for treating burn
    • A61F2013/00523—Plasters use for treating burn with hydrogel
    • 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
    • A61F2013/00365—Plasters use
    • A61F2013/0054—Plasters use for deep wounds
    • 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
    • A61F2013/00544—Plasters form or structure
    • A61F2013/00548—Plasters form or structure net
    • 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
    • A61F2013/00655—Plasters adhesive
    • A61F2013/00714—Plasters adhesive adhesives for mucosae
    • 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
    • A61F2013/00727—Plasters means for wound humidity control
    • A61F2013/00748—Plasters means for wound humidity control with hydrocolloids or superabsorbers
    • 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
    • A61F2013/00727—Plasters means for wound humidity control
    • A61F2013/00748—Plasters means for wound humidity control with hydrocolloids or superabsorbers
    • A61F2013/00753—Plasters means for wound humidity control with hydrocolloids or superabsorbers superabsorbent fabric of cloth
    • 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
    • A61F2013/00902—Plasters containing means
    • A61F2013/00936—Plasters containing means metal

Definitions

  • This invention relates to a wound dressing, in particular to ribbon or strip dressing of the type composed of gel forming fibres in the form of a woven or non woven layer or layers.
  • the invention relates to dressings comprising gel forming fibres used in the treatment of sinus or cavity wounds or post-operative wounds.
  • WO 93/12275 describes the production of various absorbent products capable of absorbing many times their own weight of water.
  • Known wound dressings comprising gel forming fibres are essentially flat, rectangular and fairly small, typically 20cm X 15cm.
  • the usefulness of such dressings is limited in respect of sinus or cavity wounds due to difficulty in removing the dressing from such a wound.
  • the gel-forming fibres gel on absorption of exudate and consequently lose tensile strength once in a gelled state. This presents a problem when the dressing needs to be removed as removal generally is done by pulling the ribbon out of the wound from one end of the ribbon.
  • the loss of tensile strength means that the dressing fragments on removal and has to be removed in many pieces or by flushing.
  • the present invention therefore seeks to provide an improved wound dressings which mitigates the problems associated with ribbon dressings in cavity or sinus wounds.
  • the invention provides a wound dressing comprising a layer in the form of a strip and comprising gel forming fibres, the strip having longitudinal lines of stitches formed from a thread and transverse lines of stitches formed from a thread.
  • the longitudinal stitching is longitudinal in that it is generally parallel to the long dimension of the strip.
  • the transverse stitching is transverse in that it joins the longitudinal lines of stitches together and in some embodiments is generally perpendicular to the long dimension of the strip.
  • the thread may be a single filament or multiple filament yarn or a staple fibre yarn.
  • the thread can be cellulosic, lycra, nylon, polyester or polyurethane.
  • the thread can be impregnated with an active agent for example with an antimicrobial agent.
  • Such dressings are suited to treating sinus or cavity wounds, post operative or surgical wounds or any wound that needs to be packed.
  • the longitudinal stitching preferably passes through the whole thickness of the strip and can be visible on both sides of the strip.
  • the transverse stitching may also pass through the whole thickness of the strip or may be present on one side only of the strip or both.
  • gel forming fibres By gel forming fibres is meant hygroscopic fibres which upon the uptake of wound exudate become moist slippery or gelatinous and thus reduce the tendancy for the surrounding fibres to adhere to the wound.
  • the gel forming fibres can be of the type which retain their structural integrity on absorbtion of exudate or can be of the type which lose their fibrous form and become a structureless gel.
  • the gel forming fibres are preferably spun sodium carboxymethylcellulose fibres, chemically modified cellulosic fibres, pectin fibres, alginate fibres, chitosan fibres, hyaluronic acid fibres, or other polysaccharide fibres or fibres derived from gums.
  • the cellulosic fibres preferably have a degree of substitution of at least 0.05 carboxymethyl groups per glucose unit.
  • the gel forming fibres preferably have an absorbency of at least 2 grams 0.9% saline solution per gram of fibre (as measured by the free swell method) .
  • Preferably the gel forming fibres have an absorbency of at least 10g/g as measured in the free well absorbency method, more preferably between 15g/g and 25g/g.
  • the dressing may for instance comprise non gel forming fibres and in particular may comprise lycra or other elastic fibre.
  • the dressing may be in the form of 0.5, 1 , 2 or more metre lengths and be approximately 0.5 cm to 10cm wide, preferably from O. ' 5cm to 5cm wide.
  • the longitudinal lines of stitching may be from lmm to 10mm apart and preferably from 2mm to 5mm apart.
  • the lines of longitudinal stitching may be a lock stitch and may typically be crochet or chain stitch but other stitch patterns may also be used.
  • the rows of transverse stitching may be from 1 to 10mm apart and preferably from 2 to 5mm apart.
  • the transverse lines of stitches may be a pattern stitch and may be crocheted or may be a basting stitch between two layers of superposed gel forming fibres.
  • the lines of stitching are made in a thread such as Tencel.
  • the transverse stitches serve to link adjacent longitudinal lines of stitches together to add strength to the dressing in a transverse direction.
  • the transverse lines of stitches are preferably made in columns between pairs of adjacent longitudinal lines of stitches with stitch free gaps between the columns to allow a roll of stitched gelling fabric to be slit in the gaps. This allows strips to be formed without creating loose ends of transverse stitching at the edges of the strip.
  • the transverse stitching is made in a continuous zig zag between longitudinal lines of stitching.
  • the transverse lines of stitching can be perpendicular to the longitudinal stitching as in the case of a zig zag castellated pattern or at an angle to it as in a continuous zig zag angled pattern.
  • the dressing comprises at least two longitudinal lines of stitching joined by a transverse line of stitching that runs in a column between the longitudinal lines. This allows the dressing to be slit from a roll with minimal loose ends of thread. More preferably the dressing comprises at least four longitudinal lines of stitching arranged as two or more pairs of lines where the longitudinal lines of stitching in each pair are joined by a transverse line of stitching in the form of a column. This arrangement allows the user to further cut the dressing in the stitch free gap between the pairs of longitudinal lines of stitching to create a narrower ribbon.
  • the dressing may comprise one or more medicaments.
  • an antimicrobial agent or an antibiotic, or an anaesthetic on an antiinflammatory agent, or a skin protective agent, or an odour absorbing agent.
  • Carboxymethylation can be achieved, for example, by sequential or simultaneous treatment of the cellulosic material with a strong alkali, such as aqueous sodium hydroxide, and monochloroacetic acid or a salt thereof.
  • a strong alkali such as aqueous sodium hydroxide, and monochloroacetic acid or a salt thereof.
  • the appropriate reaction conditions will depend upon the composition of the fabric and the degree of carboxymethylation required and will be readily apparent to the person skilled in the art. They may be identical or similar to those described in WO 93/12275, WO 94/16746 or WO 00/01425 to which the reader is directed for further detail.
  • the carboxymethylation is carried out in the presence of industrial methylated spirits (IMS) , and IMS is preferably also used in a subsequent washing step, suitably along with water, as a cleaner and steriliser.
  • IMS industrial methylated spirits
  • the degree of carboxymethylation is desirably such that upon absorption of exudate the fibres at the skin-contacting surface of the bandage form a gel.
  • the invention provides a method of manufacturing a wound dressing for use in cavity or sinus wounds characterised in that the method comprises the steps of: (i) forming a roll of fabric comprising gel forming fibres;
  • the transverse stitching is made in columns joining the longitudinal lines of stitching so that stitch free gaps are created between the columns.
  • the columns of transverse stitches are secured so that there are no loose threads in the gaps between the columns and the edges of the ribbon or strip have no loose ends.
  • the columns of transverse stitches are a continuous line of stitching which zig zags between the longitudinal lines of stitches. In this way the columns have stitch free gaps in the space between the columns which allow the roll to be slit into strips with no loose ends at their edges.
  • the dressing has several pairs of lines of longitudinal stitching with the lines in each pair joined by transverse stitching in a castellated pattern to create stitch free gaps between adjacent pairs of joined longitudinal lines of stitches . This allows the dressing to be cut into thinner ribbons by the user.
  • Figure 1 is a view of a layer of gel forming fibres in the form of a roll with longitudinal lines of stitching joined by transverse lines of stitching in the form of an angular zig zag prior to slitting.
  • Figure 2 is a view of a layer of gel forming fibres in the form of a roll with longitudinal lines of stitching and transverse lines of stitching in the form of a castellated pattern prior to slitting.
  • Figure 1 shows a non woven roll of gel-forming fibres made by a needle felting carding technique to form a web.
  • the roll can have an antimicrobial material incorporated into it and in particular silver by the method described in WO 02/43743.
  • the roll is stitched in the longitudinal direction with lines of stitching in Tencel yarn.
  • the longitudinal lines of stitches are supplemented by transverse lines of stitching in the form of continuous, angular zig zags which extend between adjacent longitudinal lines of stitches. In this way stitch free gaps are left between columns of longitudinal stitching.
  • the roll is slit in the longitudinal direction in the stitch free gaps to form ribbons.
  • Figure 2 shows a non woven roll similar to that shown in Figure 1 except that the continuous zig zag of transverse stitches is made in a castellated pattern between the longitudinal lines of stitches and joins them together.
  • the roll is slit in the longitudinal direction in the stitch free gaps to form ribbons.
  • Example 1 Preferred embodiments of the invention will now be described with reference to the following examples: Example 1
  • a wound dressing was made from a roll of gel forming fibres as described for the dressing of Figure 1.
  • the roll had lines of longitudinal stitching spaced 5mm apart.
  • the column width was 2.5cm. Ribbons were cut from each roll by slitting in a longitudinal direction at the gaps between the columns in the transverse stitching.
  • Dressing B An alternative wound dressing was made by superposing two rolls of gel forming fibres as described for Dressing A and stitching as described for Dressing A.
  • Dressing C An alternative wound dressing was made by eliminating the transverse stitching of Dressing A.
  • Test samples were cut from the stitched rolls to have the dimensions 25mm wide by 100mm long for the wet samples and 25mm wide by 75mm long for the dry samples.
  • the tensile strength of the gelled and dry samples were measured in the longitudinal and transverse direction in the following manner.
  • Samples were conditioned at 20°C ⁇ 2°C and 65% 4RH for a minimum period of 24 hours.
  • the samples were secured in the pneumatic jaws of a Zwick U. T. M. fitted with a IOON load cell.
  • the sample was elongated at a speed of lOOmm/min until a 75% reduction in the samples' maximum force was measured.
  • Samples were conditioned at 2O 0 C ⁇ 2°C and 65% ⁇ 4RH for a minimum period of 24 hours.
  • 2ml of a sodium and calcium chloride solution BP was dispensed via a pipette onto the centre of the sample and left for a period of 1 minute.
  • the sample was secured within the pneumatic jaws of a Zwick U. T. M. fitted with a IOON load cell.
  • the sample was elongated at a speed of 100mm/min until a 75% reduction in the samples' maximum force was measured.
  • Dressing A was used to pack a tracking wound. On removal from the wound the ribbon dressing was fully hydrated with wound fluid yet had maintained its structure. The dressing was easily removed from the wound in one piece.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Manufacturing & Machinery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Surgery (AREA)
  • Epidemiology (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Materials For Medical Uses (AREA)
  • Medicinal Preparation (AREA)
PCT/GB2009/001138 2008-05-08 2009-05-08 Wound dressing Ceased WO2009136160A1 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
SI200931479A SI2293752T1 (sl) 2008-05-08 2009-05-08 Obveza za rano
LTEP09742356.0T LT2293752T (lt) 2008-05-08 2009-05-08 Žaizdos tvarstis
CA2723547A CA2723547C (en) 2008-05-08 2009-05-08 Wound dressing
MX2010011919A MX340166B (es) 2008-05-08 2009-05-08 Vendaje para herida.
DK09742356.0T DK2293752T3 (en) 2008-05-08 2009-05-08 wound dressing
ES09742356.0T ES2584182T3 (es) 2008-05-08 2009-05-08 Apósito para heridas
AU2009245484A AU2009245484B2 (en) 2008-05-08 2009-05-08 Wound dressing
JP2011507984A JP5738754B2 (ja) 2008-05-08 2009-05-08 創傷包帯
NZ589348A NZ589348A (en) 2008-05-08 2009-05-08 Wound dressing comprising a strip having longitudinal lines of stitches formed from a thread and transverse lines of stitches formed from a thread
EP09742356.0A EP2293752B1 (en) 2008-05-08 2009-05-08 Wound dressing
HRP20160934TT HRP20160934T1 (hr) 2008-05-08 2009-05-08 Povoj za rane

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0808376.8 2008-05-08
GBGB0808376.8A GB0808376D0 (en) 2008-05-08 2008-05-08 Wound dressing

Publications (1)

Publication Number Publication Date
WO2009136160A1 true WO2009136160A1 (en) 2009-11-12

Family

ID=39571006

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2009/001138 Ceased WO2009136160A1 (en) 2008-05-08 2009-05-08 Wound dressing

Country Status (17)

Country Link
US (2) US10687985B2 (enExample)
EP (1) EP2293752B1 (enExample)
JP (1) JP5738754B2 (enExample)
AU (1) AU2009245484B2 (enExample)
CA (1) CA2723547C (enExample)
DK (1) DK2293752T3 (enExample)
ES (1) ES2584182T3 (enExample)
GB (1) GB0808376D0 (enExample)
HR (1) HRP20160934T1 (enExample)
HU (1) HUE029356T2 (enExample)
LT (1) LT2293752T (enExample)
MX (1) MX340166B (enExample)
NZ (1) NZ589348A (enExample)
PL (1) PL2293752T3 (enExample)
PT (1) PT2293752T (enExample)
SI (1) SI2293752T1 (enExample)
WO (1) WO2009136160A1 (enExample)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013179047A1 (en) * 2012-05-31 2013-12-05 Convatec Technologies Inc. Wound dressing
WO2017161038A1 (en) * 2016-03-18 2017-09-21 Kci Usa, Inc. Antimicrobial wound dressing
WO2019011000A1 (zh) * 2017-07-11 2019-01-17 佛山市优特医疗科技有限公司 一种加强的伤口敷料及其制备方法
EP3666238A1 (en) 2018-12-13 2020-06-17 Advanced Medical Solutions Limited Ribbon wound dressing

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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