NO143254B - Bandasje bestaaende av et trykkfoelsomt klebende lag, et lag av polymerskum og en polymerfilm. - Google Patents
Bandasje bestaaende av et trykkfoelsomt klebende lag, et lag av polymerskum og en polymerfilm. Download PDFInfo
- Publication number
- NO143254B NO143254B NO762602A NO762602A NO143254B NO 143254 B NO143254 B NO 143254B NO 762602 A NO762602 A NO 762602A NO 762602 A NO762602 A NO 762602A NO 143254 B NO143254 B NO 143254B
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- Prior art keywords
- adhesive layer
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- parts
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- 239000010410 layer Substances 0.000 title claims description 21
- 239000004820 Pressure-sensitive adhesive Substances 0.000 title claims description 10
- 239000006260 foam Substances 0.000 title claims description 7
- 229920000642 polymer Polymers 0.000 title claims description 6
- 229920006254 polymer film Polymers 0.000 title description 3
- 239000000416 hydrocolloid Substances 0.000 claims description 19
- 239000006261 foam material Substances 0.000 claims description 18
- 239000012790 adhesive layer Substances 0.000 claims description 14
- 229920001971 elastomer Polymers 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- 229920002635 polyurethane Polymers 0.000 claims description 8
- 239000004814 polyurethane Substances 0.000 claims description 8
- 229920002367 Polyisobutene Polymers 0.000 claims description 7
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 6
- 239000000806 elastomer Substances 0.000 claims description 6
- 229920005570 flexible polymer Polymers 0.000 claims description 6
- 239000011496 polyurethane foam Substances 0.000 claims description 6
- 108010010803 Gelatin Proteins 0.000 claims description 5
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 5
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 5
- 239000008273 gelatin Substances 0.000 claims description 5
- 229920000159 gelatin Polymers 0.000 claims description 5
- 235000019322 gelatine Nutrition 0.000 claims description 5
- 235000011852 gelatine desserts Nutrition 0.000 claims description 5
- 239000005060 rubber Substances 0.000 claims description 5
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 5
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 5
- 239000002480 mineral oil Substances 0.000 claims description 4
- 235000010446 mineral oil Nutrition 0.000 claims description 4
- 239000004014 plasticizer Substances 0.000 claims description 4
- 239000004322 Butylated hydroxytoluene Substances 0.000 claims description 3
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 3
- 244000043261 Hevea brasiliensis Species 0.000 claims description 3
- 235000010354 butylated hydroxytoluene Nutrition 0.000 claims description 3
- 229940095259 butylated hydroxytoluene Drugs 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 229920003052 natural elastomer Polymers 0.000 claims description 3
- 229920001194 natural rubber Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 150000003505 terpenes Chemical class 0.000 claims description 3
- 235000007586 terpenes Nutrition 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical group OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 2
- 229940096529 carboxypolymethylene Drugs 0.000 claims description 2
- 239000001814 pectin Substances 0.000 claims description 2
- 235000010987 pectin Nutrition 0.000 claims description 2
- 229920001277 pectin Polymers 0.000 claims description 2
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 2
- 229920002379 silicone rubber Polymers 0.000 claims description 2
- 239000004945 silicone rubber Substances 0.000 claims description 2
- 229920006264 polyurethane film Polymers 0.000 claims 1
- 239000000463 material Substances 0.000 description 24
- 239000000853 adhesive Substances 0.000 description 10
- 230000001070 adhesive effect Effects 0.000 description 10
- 206010052428 Wound Diseases 0.000 description 8
- 208000027418 Wounds and injury Diseases 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- 229920001296 polysiloxane Polymers 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 239000003963 antioxidant agent Substances 0.000 description 3
- 230000003078 antioxidant effect Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 239000007888 film coating Substances 0.000 description 2
- 238000009501 film coating Methods 0.000 description 2
- 230000007794 irritation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 208000035143 Bacterial infection Diseases 0.000 description 1
- 208000023514 Barrett esophagus Diseases 0.000 description 1
- 239000004255 Butylated hydroxyanisole Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 208000010201 Exanthema Diseases 0.000 description 1
- 239000004264 Petrolatum Substances 0.000 description 1
- 208000003251 Pruritus Diseases 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 208000022362 bacterial infectious disease Diseases 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 235000019282 butylated hydroxyanisole Nutrition 0.000 description 1
- CZBZUDVBLSSABA-UHFFFAOYSA-N butylated hydroxyanisole Chemical compound COC1=CC=C(O)C(C(C)(C)C)=C1.COC1=CC=C(O)C=C1C(C)(C)C CZBZUDVBLSSABA-UHFFFAOYSA-N 0.000 description 1
- 229940043253 butylated hydroxyanisole Drugs 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000006263 elastomeric foam Substances 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 201000005884 exanthem Diseases 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000007803 itching Effects 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229940066842 petrolatum Drugs 0.000 description 1
- 235000019271 petrolatum Nutrition 0.000 description 1
- 239000006223 plastic coating Substances 0.000 description 1
- -1 poly-acrylate Polymers 0.000 description 1
- 229940070721 polyacrylate Drugs 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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 bandages or dressings
- A61F13/0203—Adhesive bandages or dressings with fluid retention members
- A61F13/0213—Adhesive bandages or dressings with fluid retention members the fluid retention member being a layer of hydrocolloid, gel forming 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
- A61F13/02—Adhesive bandages or dressings
- A61F13/0203—Adhesive bandages or dressings with fluid retention members
- A61F13/0223—Adhesive bandages or dressings with fluid retention members characterized by parametric properties of the fluid retention layer, e.g. absorbency, wicking capacity, liquid distribution
-
- 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
- A61F13/0226—Adhesive bandages or dressings with fluid retention members characterised by the support layer
-
- 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
- A61F13/0276—Apparatus or processes for manufacturing adhesive dressings or bandages
-
- 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
- A61L15/425—Porous materials, e.g. foams or sponges
-
- 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
- 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
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
-
- 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
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
- A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
- A61F13/51401—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material
- A61F2013/51409—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a film
-
- 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
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F2013/530802—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium characterized by the foam or sponge other than superabsorbent
-
- 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
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F2013/53445—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad from several sheets
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Epidemiology (AREA)
- Materials Engineering (AREA)
- Dispersion Chemistry (AREA)
- Hematology (AREA)
- Manufacturing & Machinery (AREA)
- Materials For Medical Uses (AREA)
- Adhesive Tapes (AREA)
Description
I US-patent nr. 3 339 546 er det beskrevet en bandasje omfattende en vann-ugjennomtrengelig film med et gummilignende klebemiddel på den ene side. Klebemidlet er en blanding av et i vann oppløselig eller svellbart hydrokolloid og et vann-uoppløse-lig viskøst gummilignende elastisk bindemiddel.
I US-patent nr. 3 122 140, nr. 3 122 141, nr. 3 122 142 og nr. 3 156 242 er det beskrevet forbindinger omfattende et skum-materiale, så som polyuretan, hvori det er innlagt og fordelt fibervev med kapillarvirkning. I US-patent nr. 3 649 436 og nr. 3 665 918 og i det britiske patent nr. 1 253 845 er det beskrevet forbindinger omfattende oppskummet, åpencellet polyuretan som på den ene side er belagt med et trykkfølsomt klebemiddel. Dessuten fremgår det av ovennevnte US-patent nr. 3 665 918 at den andre siden av skummateria let kan ha et porøst plastbelegg. Bandasjer hvor et åpencellet, oppskummet polyuretan legges direkte på såret, er beskrevet i US-patent nr. 3 113 568, nr. 3 157 178, nr. 3 491 753 og nr. 3 648 692. Andre tidligere kjente anordninger som kan nevnes i denne forbindelse, og som inneholder et lag av åpencellet skummateria le, er et strekkbånd (US-patent nr. 3 536 072), en sår-forbinding (US-patent nr. 3 669 106) og en sår-tampong (US-patent nr. 3 301 254.
Denne oppfinnelse angår en forbedret bandasje bestående av tre komponenter. Det midtre lag er et fleksibelt polymer-skum med halvåpne celler, hvilket på den ene side har en fleksibel, vann-ugjennomtrengelig polymerfilm og på den andre siden et trykk-følsomt bindemiddelmateriale. Bandasjen er angitt i kravet.
Det vises nå til tegningen, hvor fig. 1 viser bandasjens oppbygning (sterkt forstørret), og fig. 2 viser et snitt etter linjen 2-2 på fig. 1.
Bandasjen 10 omfatter det trykkfølsomme klebemiddel-lag 11, et lag 12 av polymer-skum med halvåpne celler og et ytre be-legg 13 av polymerfilm.
Laget 11 av trykkfølsomt bindemiddelmateriale består
av et trykkfølsomt gummilignende elastomer-materiale inneholdende godt dispergert et vannløselig eller i vann svellbart hydrokolloid eller en blanding av hydrokolloider, et klebriggjørende stoff og et plastiseringsmiddel eller løsningsmiddel. Egnede gummilignende elastomerer innbefatter naturlige eller syntetiske viskøse gummilignende stoffer, så som naturlig gummi, silikongummi, akrylnitrilgummi, polyuretan-gummi, polyisobutylen etc., fortrinnsvis en blanding av polyisobutylener med molekylvekt på 10 000-11 700 og 81 000-99 000. Egnede hydrokolloider innbefatter polyvinylalkohol, pulverisert pektin, gelatin, natriumkarboksymetylcellulose, karbon-voks med høy molekylvekt, karboksypolymetylen etc., fortrinnsvis en blanding av gelatin og natriumkarboksymetylcellulose. Egnede plastiseringsmidler eller løsningsmidler innbefatter mineralolje og petrolatum, fortrinnsvis mineralolje. Terpenharpiks er det foretrukne klebriggjørende middel. Det viskøse gummilignende stoff virker som et bindemiddel for hydrokolloid-partiklene og gjør dessuten det endelige klebemiddelmateriale klebrig, elastisk og bøyelig. Fortrinnsvis tilsettes også en antioksydant, så som butylert hydroksytoluen eller butylert hydroksyanisol, til klebemiddelmaterialet, hvorved bandasjen blir mer holdbar.
Hydrokolloidet eller blandingen av hydrokolloid bør inneholde mer enn ca. 30 vekt-% av det trykkfølsomme klebemiddelmateriale og fortrinnsvis mellom 40 og 50 vekt-% av dette materiale. Klebemiddelmaterialet kan variere i tykkelse fra ca. 0,12 til ca. 0,76 mm og er fortrinnsvis mellom 0,12 og 0,38 mm.
Laget 12 av elastisk eller fleksibelt halvåpencellet skummateriale kan fremstilles av forskjellige elastomermaterialer, så som polyester- eller polyeter - polyuretan-skummaterialer, styren-butadien-skummaterialer og eventuelt visse gummibaserte skummaterialer, etc. Det materiale som anvendes bør selvsagt være ugiftig og stabilt. Det foretrukne materiale er et fleksibelt polyuretan-skummateriale med omkring 20-40 celler pr. lineær centimeter, fortrinnsvis ca. 32 cellor pr. lineær centimeter. Med halvåpen menes her at ca. 30-70% av coilene er åpne eller brutt. Laget av halvåpencellet skummateriale kan variere i tykkelse fra ca. 0,5 mm til ca. 1,27 mm.
Det ytre filmbelegg 13 av elastisk eller fleksibelt polymermateriale kan fremstilles av et vann-ugjennomtrengelig bøyelig elastomermateriale, så som fleksibelt polyuretan, poly-akrylat, naturgummi etc. Det materiale som anvendes, kan være gjennomtrengelig for gass i noen grad, slik at luft kan trenge gjennom til overflaten av huden, og bør være gjennomsiktig eller tilstrekkelig gjennomskinnelig til å tillate observasjon av den dekkede del av huden uten at bandasjen fjernes. Det materiale som anvendes er fortrinnsvis fleksibelt polyuretan. Belegget 13
kan påføres som et enkelt lag eller en flerhet av lag, slik at den totale tykkelse av belegget 13 er fra ca. 25^um til ca. 76yum, fortrinnsvis mellom 38 og 51^/um.
Ved pakkingen av bandasjen blir et stykke silikonbe-
lagt slippapir (ikke vist på tegningen) heftet på den eksponerte side av klebemiddelmaterialet 11.
Bandasjen 10 fremstilles ved at man danner en blanding
av hydrokolloidet, gummiaktig elastomer, klebriggjørende middel og plastiseringsmiddel, samt andre valgfrie ingredienser, så som antioksydant, i et organisk løsningsmiddel, f.eks. heptan eller heksan. Den resulterende oppslemning påføres på et stykke silikonbelagt slippapir, og løsningsmidlet avdampes. Etter tørring er hydrokolloidet dispergert i hele klebemiddéllaget. Dette materiale blir så komprimert sammen med et laminat av fleksibelt elastomer-skummateriale med halvåpne celler, hvilket materiale har en vann-ug jennomtrengelig fleksibel elastomerfilm på den ene side. En fremgangsmåte til å danne et slikt laminat er beskrevet i US-patent nr. 3 547 753. Andre fremgangsmåter kan selvsagt anvendes ved fremstillingen av laminatet. Den resulterende bandasje innbefat-tende det silikonbelagte slippapir kan rulles opp eller deles opp i enkeltbandasjer og pakkes.
Bandasjen i følge oppfinnelsen har mange fordeler frem-for de tidligere kjente. Hydrokolloidet i klebemiddéllaget absor-berer fuktighet, så som svette og væske fra sår, og overfører slik fuktighet fra hudens overflate til laget av åpencellet skummateriale, hvor den kan fordampe gjennom sidene av bandasjen. Dette står i kontrast til bandasjer som har et konvensjonelt trykkfølsomt klebemiddel som ikke tillater fuktighet å unnvike fra hudens overflate. Ansamling av slik fuktighet vil alltid resultere i utslett på
huden og irritasjon og vil til slutt svekke klebemiddelbindingen, slik at bandasjen til slutt faller av. Klebemiddéllaget i ban-
dasjen i følge oppfinnelsen regulerer fuktighetsinnholdet ved hudens overflate, hvilket bidrar til at bandasjen blir liggende på plass i lengre tid og reduserer eller eliminerer behovet for å skifte bandasjen. Laminatet av åpencellet skummateriale og polymert filmbelegg gjør bandasjen mer fleksibel og muliggjør fullstendig bevegelsesfrihet og komfort og øker også bandasjens evne til å bli liggende på plass, særlig på slike legemsdeler som knær og albuer, som setter store krav til en bandasje. Det ytre polymerbelegg gir en jevn overflate som reduserer friksjonen mellom bandasjen og klær eller seng, slik at tilfeldig forskyv-ning av bandasjen unngås. Polymerbelegget styrker også laget
av åpencellet skummateriale, hvorved bandasjen kan fjernes uten å gå i stykker.
Luft kan trenge gjennom sidene av det åpencellede skum-materiale og trenge ned gjennom klebemiddéllaget til den behand-lede del av huden. I motsetning til tidligere kjente bandasjer hvor skummateria let kommer i direkte kontakt med huden, beskytter imidlertid klebemiddéllaget det skadede område, slik at for-urensning og bakteriell infeksjon hindres. Bandasjens klebe-middellag bevirker heller ikke irritasjon, kløe eller hudavriv-ning, i motsetning til de kjente fuktighetsblokkerende, trykk-følsomme klebemidler. Bandasjen i følge oppfinnelsen kan lett fjernes når såret er helet.
De materialer som anvendes i bandasjens tre komponenter, tillater sterilisering av bandasjen på forskjellige måter, så som autoklavbehandling eller gamma-bestråling. Bandasjen er nesten gjennomsiktig eller gjennomskinnelig, slik at såret kan holdes under observasjon uten at bandasjen behøver å fjernes.
Bandasjen i følge oppfinnelsen kan også benyttes ved brannsårterapi. Som omtalt ovenfor beskytter klebemiddéllaget såret og hindrer at dette infiseres, det åpencellede skummateriale har en passende gjennomtrengelighet for luft og vanndamp og gir bandasjen forbedret fleksibilitet, og hele bandasjen gjør det mulig å holde det område som behandles, under observasjon. Klebemiddéllaget er p.g.a. hydrokolloidet i stand til å absor-bere utsondret væske fra brannsåret og transportere sådant materiale til det øvre sjikt som ligger an mot det nevnte skum-materiale med halvåpne celler, fra hvilket materialet fjernes i dampform ved hjelp av luft som strømmer gjennom sidene av laget av skummateriale. Samtidig vil væsketapet fra det brannskadede område reguleres av klebemiddéllaget og det vann-ugjennomtrengelige ytre polymerbelegg, slik at ikke dette tap bli altfor stort. Da hydrokolloidet i klebemiddéllaget blir slimaktig når det kommer i kontakt med brannsårvæsken, kan bandasjen fjernes uten at det hudområde som er under behandling, skades og med et mini-mum av smerte for pasienten.
Det følgende eksempel vil ytterligere belyse oppfinnelsen.
EKSEMPEL
60 kg polyisobutylen-gummi med gjennomsnittlig molekylvekt mellom 81 000 og 99 000, 54 kg natriumkarboksymetylcellulose og 45 kg gelatin (100 mesh) knaes til en blanding, hvor de fin-delte stykker av gummi holdes adskilt og hindres av hydrokolloidet i å klebe sammen. Denne blanding tilsettes til en løsning i heptan av 54 kg polyisobutylen med gjennomsnittlig molekylvekt mellom 10 000 og 11 700, 60 kg klebriggjørende middel (terpen-harpiks), 1,5 kg antioksydant (butylert hydroksytoluen) og 25,5 kg mineralolje, hvorved en klebemiddeloppslemning erholdes. En del av denne oppslemning helles på et ark av silikonbelagt slippapir, og løsningsmidlet avdampes.
Det fremstilles et annet laminat bestående av fleksibelt polyuretanskum med halvåpne celler (skummet har ca. 32 celler pr. lineær centimeter, hvor ca. 30-70% av cellene er brutt) med en tykkelse på ca. 0,76 mm belagt med fleksibelt polyuretan med en tykkelse på ca. 0,05 mm.
Laminatet av klebemiddelmateriale og slippapir og laminatet av fleksibelt polyuretanskum og fleksibelt polyuretan legges sammen under svakt trykk (idet skummaterialet bringes i kontakt med klebemiddelmaterialet) ved hjelp av trykkvalser. Dermed erholdes bandasjen.
Claims (6)
1. Bandasje bestående av et trykkfølsomt klebende lag,
et lag av fleksibelt polymer-skum som er bundet til det klebende lag og har mellom 20 og 40 celler pr. lineær centimeter, og en vann-ugjennomtrengelig fleksibel polymerfilm bundet til den mot-satte side av laget av skum-materiale, hvor det klebende lag består av en gummiaktig elastomer som dispergert inneholder et vann-oppløselig eller -svellbart hydrokolloid eller blanding av hydrokolloider, et klebriggjørende middel og et plastiseringsmiddel, og hvor hydrokolloidet utgjør minst 30 vekt% av det klebende lag, og hvor elastomeren er valgt fra gruppen bestående av naturgummi, silikongummi, akrylnitrilgummi, polyuretangummi og polyisobutylen, karakterisert ved at polymerskummet er ukomprimert, har en halvåpen cellestruktur hvor mellom 30 og 70 % av cellene er brutt (åpne), og at hydrokolloidet er valgt fra gruppen bestående av polyvinylalkohol, pulverisert pektin, gelatin, natriumkarboksymetylcellulose, høymolekylær karbo-voks, karboksypolymetylen og blandinger derav.
2. Bandasje ifølge krav 1, karakterisert ved at det trykkfølsomme klebende lag inneholder mellom 40 og 50 vekt% av hydrokolloidet eller hydrokolloid-blandingen.
3. Bandasje ifølge krav 2, karakterisert ved at det trykkfølsomme klebende lag har en tykkelse mellom 0,12 og 0,76 mm, og laget av skum-materiale har en tykkelse mellom 0,51 og 1,27 mm, og den vann-ugjennomtrengelige film har en tykkelse mellom 25 og 76 pm.
4. Bandasje ifølge krav 1, karakterisert ved at det fleksible polymerskum er fleksibelt polyuretanskum, og den vann-ugjennomtrengelige fleksible polymerfilm er fleksibelt polyuretan.
5. Bandasje ifølge krav 4, karakterisert ved at det trykkfølsomme klebende lag består av ca.
60 vektdeler av et polyisobutylen med gjennomsnittlig molekylvekt mellom 81000 og 99000, ca. 54 vektdeler av et polyisobutylen med gjennomsnittlig molekylvekt mellom 10000 og 11700, ca. 54 vektdeler natriumkarboksymetylcellulose, ca.
45 vektdeler gelatin, ca. 60 vektdeler terpen-harpiks, ca.
25,5 vektdeler mineralolje og ca. 1,5 vektdel butylert hydroksytoluen.
6. Bandasje ifølge krav 5, karakterisert ved at det klebende lag har en tykkelse mellom 0,12 og 0,38 mm, den fleksible polyuretanfilm har en tykkelse mellom 38 og 51 ym, og det fleksible polyuretanskum inneholder ca.
32 celler pr. lineær centimeter.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/599,804 US3972328A (en) | 1975-07-28 | 1975-07-28 | Surgical bandage |
Publications (3)
Publication Number | Publication Date |
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NO762602L NO762602L (no) | 1977-01-31 |
NO143254B true NO143254B (no) | 1980-09-29 |
NO143254C NO143254C (no) | 1981-01-07 |
Family
ID=24401162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO762602A NO143254C (no) | 1975-07-28 | 1976-07-26 | Bandasje bestaaende av et trykkfoelsomt klebende lag, et lag av polymerskum og en polymerfilm |
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US (1) | US3972328A (no) |
JP (1) | JPS5216895A (no) |
AR (1) | AR211930A1 (no) |
AT (1) | AT363585B (no) |
AU (1) | AU506284B2 (no) |
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CA (1) | CA1053107A (no) |
CH (1) | CH616334A5 (no) |
CS (1) | CS189017B2 (no) |
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DE (1) | DE2631277A1 (no) |
DK (1) | DK147226C (no) |
EG (1) | EG12200A (no) |
ES (1) | ES450189A1 (no) |
FI (1) | FI68520C (no) |
FR (1) | FR2319326A1 (no) |
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IE (1) | IE44152B1 (no) |
IL (1) | IL50124A (no) |
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IT (1) | IT1073647B (no) |
MX (1) | MX147377A (no) |
NL (1) | NL7607561A (no) |
NO (1) | NO143254C (no) |
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- 1976-06-22 IE IE1358/76A patent/IE44152B1/en not_active IP Right Cessation
- 1976-06-23 IN IN1121/CAL/76A patent/IN145427B/en unknown
- 1976-06-23 ZA ZA763756A patent/ZA763756B/xx unknown
- 1976-06-25 AU AU15297/76A patent/AU506284B2/en not_active Expired
- 1976-06-25 GR GR51108A patent/GR60008B/el unknown
- 1976-06-25 NZ NZ181286A patent/NZ181286A/xx unknown
- 1976-06-29 PH PH18627A patent/PH12484A/en unknown
- 1976-07-05 GB GB27898/76A patent/GB1548678A/en not_active Expired
- 1976-07-08 NL NL7607561A patent/NL7607561A/xx not_active Application Discontinuation
- 1976-07-09 MX MX165453A patent/MX147377A/es unknown
- 1976-07-12 DE DE19762631277 patent/DE2631277A1/de not_active Ceased
- 1976-07-13 IT IT50414/76A patent/IT1073647B/it active
- 1976-07-16 CS CS764734A patent/CS189017B2/cs unknown
- 1976-07-19 YU YU01773/76A patent/YU177376A/xx unknown
- 1976-07-24 PL PL1976191415A patent/PL111642B1/pl unknown
- 1976-07-25 EG EG448/76A patent/EG12200A/xx active
- 1976-07-26 FR FR7622752A patent/FR2319326A1/fr active Granted
- 1976-07-26 FI FI762132A patent/FI68520C/fi not_active IP Right Cessation
- 1976-07-26 NO NO762602A patent/NO143254C/no unknown
- 1976-07-26 BR BR7604822A patent/BR7604822A/pt unknown
- 1976-07-26 IL IL50124A patent/IL50124A/xx unknown
- 1976-07-26 DD DD194063A patent/DD126788A5/xx unknown
- 1976-07-27 CH CH959576A patent/CH616334A5/fr not_active IP Right Cessation
- 1976-07-27 PT PT65410A patent/PT65410B/pt unknown
- 1976-07-27 DK DK337376A patent/DK147226C/da not_active IP Right Cessation
- 1976-07-27 AR AR246088A patent/AR211930A1/es active
- 1976-07-27 ES ES450189A patent/ES450189A1/es not_active Expired
- 1976-07-27 SE SE7608486A patent/SE434911B/xx not_active IP Right Cessation
- 1976-07-28 JP JP51091265A patent/JPS5216895A/ja active Pending
- 1976-07-28 AT AT0556976A patent/AT363585B/de active
- 1976-07-28 BE BE169314A patent/BE844602A/xx not_active IP Right Cessation
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