DK147226B - Bandage med trykfoelsomt klaebelag og vandfast, boejelig polymerfilm - Google Patents
Bandage med trykfoelsomt klaebelag og vandfast, boejelig polymerfilm Download PDFInfo
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- DK147226B DK147226B DK337376AA DK337376A DK147226B DK 147226 B DK147226 B DK 147226B DK 337376A A DK337376A A DK 337376AA DK 337376 A DK337376 A DK 337376A DK 147226 B DK147226 B DK 147226B
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- dressing
- foam
- water
- pressure
- polymer film
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- 239000004820 Pressure-sensitive adhesive Substances 0.000 title description 10
- 229920005570 flexible polymer Polymers 0.000 title description 9
- 239000011248 coating agent Substances 0.000 title description 5
- 238000000576 coating method Methods 0.000 title description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title description 3
- 239000006260 foam Substances 0.000 description 27
- 239000000853 adhesive Substances 0.000 description 16
- 230000001070 adhesive effect Effects 0.000 description 16
- 239000000416 hydrocolloid Substances 0.000 description 16
- 239000012790 adhesive layer Substances 0.000 description 14
- 239000010410 layer Substances 0.000 description 14
- 229920001971 elastomer Polymers 0.000 description 11
- 239000000203 mixture Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 229920005830 Polyurethane Foam Polymers 0.000 description 7
- 239000000806 elastomer Substances 0.000 description 7
- 239000011496 polyurethane foam Substances 0.000 description 7
- 229920002635 polyurethane Polymers 0.000 description 6
- 239000004814 polyurethane Substances 0.000 description 6
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 4
- 229920002367 Polyisobutene Polymers 0.000 description 4
- 239000004014 plasticizer Substances 0.000 description 4
- 239000002897 polymer film coating Substances 0.000 description 4
- 229920001296 polysiloxane Polymers 0.000 description 4
- 239000005060 rubber Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 108010010803 Gelatin Proteins 0.000 description 3
- 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 description 3
- 239000003963 antioxidant agent Substances 0.000 description 3
- 230000003078 antioxidant effect Effects 0.000 description 3
- 239000001768 carboxy methyl cellulose Substances 0.000 description 3
- 210000000416 exudates and transudate Anatomy 0.000 description 3
- 239000008273 gelatin Substances 0.000 description 3
- 229920000159 gelatin Polymers 0.000 description 3
- 235000019322 gelatine Nutrition 0.000 description 3
- 235000011852 gelatine desserts Nutrition 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 239000002480 mineral oil Substances 0.000 description 3
- 235000010446 mineral oil Nutrition 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
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 3
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 3
- 239000004322 Butylated hydroxytoluene Substances 0.000 description 2
- 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 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 2
- 229940095259 butylated hydroxytoluene Drugs 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 230000007794 irritation Effects 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 150000003505 terpenes Chemical class 0.000 description 2
- 235000007586 terpenes Nutrition 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical group OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 208000035143 Bacterial infection Diseases 0.000 description 1
- 239000004255 Butylated hydroxyanisole Substances 0.000 description 1
- 208000010201 Exanthema Diseases 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 208000003251 Pruritus Diseases 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 206010040844 Skin exfoliation Diseases 0.000 description 1
- 206010040880 Skin irritation Diseases 0.000 description 1
- 239000002174 Styrene-butadiene Substances 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
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 229940096529 carboxypolymethylene Drugs 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 201000005884 exanthem Diseases 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007803 itching Effects 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing 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
- 239000002245 particle Substances 0.000 description 1
- 239000001814 pectin Substances 0.000 description 1
- 235000010987 pectin Nutrition 0.000 description 1
- 229920001277 pectin Polymers 0.000 description 1
- 235000019271 petrolatum Nutrition 0.000 description 1
- 239000006223 plastic coating Substances 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 231100000475 skin irritation Toxicity 0.000 description 1
- 231100000046 skin rash Toxicity 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
Classifications
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- 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)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Chemical & Material Sciences (AREA)
- Vascular Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Materials Engineering (AREA)
- Epidemiology (AREA)
- Dispersion Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials For Medical Uses (AREA)
- Adhesive Tapes (AREA)
Description
T47226
Den foreliggende opfindelse angår en bandage til at anbringe på huden i stedet for en gængs kirurgisk forbinding/ og som omfatter et trykfølsomt klæbende lag og en vanduigennemtrængelig bøjelig polymerfilm, og hvor det klæbende lag omfatter en ^ummiagtig elastomer, hvori der er fordelt et vandopløseligt eller i vand opsvul-meligt hydrocolloid eller blanding af hydrocolloider, ialt 50 vægtprocent af det klæbende lag, et klæbriggørende middel og en blødgører.
USA patentskrift nr. 3.339.546 omhandler en bandage, der kan anbringes på en kropsflade, og som omfatter en vanduigennemtrængelig film med et klæbende gummilignende fasthæftende præparat fastgjort til sin ene side. Dette fasthæftende præparat er en blanding af et vandopløseligt eller i vand opsvulmeligt hydrocolloid blandet med ét vanduopløseligt viskost gummilignende elastisk bindemiddel.
I USA patentskrifterne 3.122.140, 3.122.141, 3.122.142 og 3.156.242 omtales medicinske forbindinger omfattende et ark skumma- 2 147226 teriale såsom polyurethan med fibervæv, der fungerer som hårkar, fordelt overalt. I USA patentskrifterne nr. 3.649.436, 3.665.918 og britisk 1.253.845 omtales medicinske forbindinger omfattende et ark sammenpresset polyurethanskum med åbne celler på den ene side overtrukket med et trykfølsomt klæbestof. Patentskrift nr. 3.665.918 omtaler desuden, at den anden side af det sammenpressede skum kan have et porøst formstofovertræk. Bandager, hvor polyurethanskum med åbne celler anbringes direkte på såret^ omtales i USA patentskrifterne 3.113.568, 3.157.178, 3.491.753 og 3.648.692. Inden for den kendte teknik omtaler USA patentskrift nr. 3.536.072 en bandage indeholdende et skumlag med åbne celler med en trækstrimmel, nr. 3.669.106 et kirurgisk forbindsstof og nr. 3.301.254 et kirurgisk kompres.
Ifølge ovennævnte US patentskrift nr. 3.665.918 anvendes specielt et til under 50% af oprindelig tykkelse kompressionshærdet polyurethanskumstof, et såkaldt komprimeret skumstof, netop for at opnå en modstand mod spaltning på over 1,5 kg/cm i et forsøg på at løse det problem, at skumstoffet spalter eller forskydes ved bandagens fjernelse.
I modsætning hertil benyttes i bandagen ifølge opfindelsen et almindeligt, dvs. ikke-komprimeret skumstof, der specielt benyttes i kombination med en type hydrocolloid-baseret klæbestof som nærmere beskrevet nedenfor. Det har herved nu vist.sig muligt at løse problemet med skumstoffets spaltning, hvilket endda opnås, selv når der benyttes et åbencellet skumstof, der tillader luft at trænge ind til såret. En sådan luftadgang er klart ønskelig og opnås ganske tydelig ikke med det ovennævnte kendte komprimerede skum. Hertil kommer, at nærværende bandage er mere fleksibel netop på „grund afv.brugen af ^.almindeligt skumstof fremfor komprimeret skumstof, der ifølge sin natur er mere stift.
Bandagen ifølge opfindelsen er således ejendommelig ved, at der mellem det klæbende lag og den bøjelige polymerfilm er anbragt et lag af bøjeligt polymerskum med halvåbne celler med ca. 20 til ca. 40 celler pr. cm, hvor mellem 30 og 70% af cellerne er åbne.
Opfindelsen forklares i det følgende nærmere ved hjælp af tegningen i stærkt forstørret gengivelse, hvor fig. 1 viser bandagen i sin helhed, og fig. 2 viser bandagen set forfra langs linien 2-2 i fig. 1.
På fig. 1 er vist en bandage 10, der omfatter et trykfølsomt klæbende lag 11, et lag 12 af polymerskum med halvåbne celler samt et ydre overtræk 13 af polymerfilm.
147226 3
Det trykfølsomme klæbende lag 11 omfatter et trykfølsomt gummi-agtigt klæbende elastomermateriale, hvori der tæt fordelt er et vandopløseligt eller i vand opsvulmeligt hydrocolloid eller blanding af hydrocolloider, et middel, der gør klæbrig, samt et blødgøringsmiddel eller opløsningsmiddel. Egnede gummiagtige elastomere omfatter naturlige eller syntetiske viskose gummilignende stoffer såsom naturligt gummi, silicongummi, acrylonitrilgummi, polyurethangummi, polyisobu-tylen og lignende med en blanding af polyisobutylener med en molekylevægt på 10.000-11.700 og 81.000-99.000 som de foretrukne. Egnede hydrocolloider omfatter polyvinylalkohol, pulveriseret pektin, gelatine, natriumcarboxymethylcellulose, carbovoks med høj molekylevægt, carboxy-polymethylen og lignende med en blanding af gelatine og natriumcarboxymethylcellulose som den foretrukne. Egnede blødgørere eller opløsningsmidler omfatter mineralolie og vaseline, med mineralolie som den foretrukne. Terpenharpiks er det foretrukne klæbendegørende middel. Det viskose gummilignende stof virker som bindemiddel for de hydrocolloide partikler og gør yderligere det endelige klæbemiddel, klæbrigt, elastisk og bøjeligt. Det foretrækkes ligeledes at medtage ét antioxideringsmiddel såsom butyleret hydroxytoluen eller butyleret hydroxyanisol i klæbemidlet for at forlænge bandagens lagerholdbarhed.
Hydrocolloidet eller blandingen af hydrocolloider vil normalt omfatte mere end 30 vægtprocent af det trykfølsomme klæbemiddel og fortrinsvis fra ca. 40 til ca. 50 vægtprocent af klæbemidlet. Dette kan variere i tykkelse fra ca. 0,13 til ca. 0,76 mm, fortrinsvis 0,13 til 0,38 mm.
Det elastiske eller bøjelige skumlag 12 med halvåbne celler kan dannes af forskellige elastomere materialer såsom polyester- eller polyetherpolyurethanskum, styren-butadienskum og eventuelt visse skum-former på gummibasis og lignende. Det anvendte materiale skal naturligvis være ikke-toksisk og stabilt. Det foretrukne materiale er et bøjeligt polyurethanskum med fra ca. 20 til ca. 40 celler pr. cm fortrinsvis ca. 32 celler pr. cm. Som nævnt skal procentdelen af åbne celler ligge fra ca. 30 til ca. 70%. Skumlaget med halvåbne celler kan variere i tykkelse mellem 0,5 og 1,27 mm.
Det udvendige elastiske eller bøjelige polymerfilmovertræk 13 kan dannes af et vanduigennemtrængeligt bøjeligt elastomermateriale, såsom bøjelig polyurethan, polyacrylat, naturligt gummi etc. Det anvendte materiale kan i nogen grad være gasgennemtrængeligt for at lette passagen af luft til hudens overflade, og det skal være gennemsigtigt eller tilstrækkeligt gennemskinneligt til at tillade inspektion 4 147226 af den dækkede del af huden uden at fjerne bandagen. Det anvendte materiale er fortrinsvis et bøjeligt polyurethan. Overtrækket 13 kan påføres som et enkelt lag eller flere lag, således at overtrækket 13*s totale tykkelse ligger fra ca. 0,025 til ca. 0,076 mm, fortrinsvis "fra 0,037 til 0,05 mm. Det er således ifølge opfindelsen hensigtsmæssigt, at det trykfølsomme, klæbende lag er fra ca. 0,13 til ca. 0,76 mm tykt, og den vanduigennemtrængelige film er fra ca. 0,025 til ca. 0,076 mm tyk. Især foretrækkes det, at det trykfølsomme, klæbende lag er fra ca. 0,13 til ca. 0,38 mm tyk, den bøjelige polymerfilm er fra ca. 0,038 til ca. 0,051 mm tyk og er af polyurethan, og det bøjelige polymerskum indeholder ca. 32 celler pr. cm og er af polyurethan.
Ved emballering af bandagen fastgøres et stykke silicondækket slippapir (ikke vist på tegningen) til den synlige side af det klæbende lag 11.
Bandagen 10 fremstilles ved at blande hydrocolloidet, den gummi-agtige elastomer, det klæbriggørende middel og blødgøreren samt andre eventuelle ingredienser såsom et antioxideringsmiddel i et organisk ..opløsningsmiddel såsom heptan eller hexan. Den fremkomne klæbende opslæmning påføres på silicondækket slippapir, og opløsningsmidlet fordamper. Efter tørring er hydrocolloidet fordelt i det klæbende lag. Dette materiale trykkes derefter sammen med et laminat af bøjeligt polymert elastomerskum med halvåbne celler og med et overtræk af en vanduigennemtrængelig bøjelig polymer elastomerfilm på den ene side.
En fremgangsmåde til fremstilling af et sådant laminat omtales i USA patentskrift nr. 3.547.753. Der kan naturligvis anvendes andre metoder til fremstilling af dette laminat. Den herved fremkomne bandage, der omfatter det siliconovertrukne slippapir kan vikles i ruller eller skæres til bandager i forskellige størrelser og emballeres.
Bandagen ifølge den foreliggende opfindelse har talrige fordele frem for de tidligere kendte. Hydrocolloidet, der er til stede i det klæbende lag, absorberer fugtighed såsom sved og sårexsudat og overfører denne fugtighed fra hudens overflade til skumlaget med åbne celler, hvor den kan fordampe gennem bandagens sider. Dette er modsat bandager, der har gængs trykfølsomt klæbestof, der ikke tillader undvigelse af fugtighed fra hudens overflade. En sådan tiltagende fugtighed vil uvægerligt forårsage hududslæt og irritation og vil måske svække klæbevirkningen, så at bandagen falder af. Det klæbende lag i bandagen ifølge opfindelsen bevirker ved at regulere fug-tighedsniveauet ved hudens overflade, at bandagen forbliver fast på 147226 5 plads i lang tid og reducerer eller eliminerer behovet for forbindingsskift. Laminatet af skum med åbne celler og overtræk af polymerfilm giver øget fleksibilitet til bandagen, hvilket tillader fuldstændig fri bevægelighed og velbehag og ligeledes forøger bandagens fastholdelse på huden især på dele af kroppen såsom knæ eller albu, der er udsat for belastning. Det udvendige overtræk af polymerfilm giver en glat overflade, der reducerer friktion mellem bandagen og klæder eller sengetøj, hvorved uforsætlig forskubning af bandagen forhindres. Filmovertrækket styrker ligeledes skumlaget med åbne celler og tillader, at bandagen kan fjernes eller trækkes af uden at gå i stykker.
Luft er i stand til at strømme gennem siderne af skummet og trænge ned gennem det klæbende lag til den behandlede del af huden. Men i modsætning til de kendte bandager, hvor skummet er i direkte berøring med huden, lukker det klæbende lag af for det sårede område, så at smitte og bakterieinfektion forhindres. Det klæbende lag i bandagen ifølge opfindelsen forårsager ikke som ved de gængse fugtig^ieds-indelukkende trykfølsomme klæbestoffer irritation, kløe eller hud-løshed. Denne bandage kan let fjernes, når såret er helet.
De materialer, der anvendes i bandagens tre bestanddele, gør, at bandagen kan steriliseres på forskellig måde såsom ved autoklavering eller gammabestråling. Bandagen er næsten gennemsigtig eller gennemskinnelig, så at såret kan iagttages, uden at det er nødvendigt at fjerne bandagen.
Den foreliggende bandage er ligeledes værdifuld ved forbrændings-terapi. Som nævnt ovenfor lukker det klæbende lag såret inde og forhindrer infektionsfare, skummet tillader passende gennemgang af luft og vanddamp og giver bandagen øget fleksibilitet, og hele bandagen gør det behandlede* areal synligt. Det klæbende lag en på grund af tilstedeværelsen af hydrocolloid i stand til at absorbere exsudat fra den brændte overflade og at føre sådant materiale op til det ø-verste lag, der grænser op til skummet, hvorfra det spredes som damp med den luft, der strømmer gennem skumlagets sider. På samme tid reguleres et for stort væsketab fra den brændte overflade af det klæbende lag og det udvendige vanduigennemtrængelige polymerfilmovertræk. Da hydrocolloidet i det klæbende lag bliver slimagtigt, når det kommer i berøring med forbrændingsexsudatet, er det muligt at fjerne bandagen uden at beskadige overfladen på den læderede hud og med et minimum af smerte.
Det følgende eksempel tjener til belysning af bandagen ifølge opfindelsen.
147226 6
Eksempel 60 kg polyisobutylengummi med en gennemsnitlig molekylevægt på 81.000-99.000, 54 kg natriumcarboxymethylcellulose og 45 kg gelatine (0,15 mm) æltes sammen til en blanding, hvori de findelte gummistykker holdes adskilte og forhindres i at klæbe sammen af hydrocolloider-ne. Denne blanding sættes til en opløsning af heptan indeholdende 54 kg polyisobutylen med en gennemsnitlig molekylevægt på 10.000-11.700, 60 kg klæbriggørende middel (terpenharpiks), 1,5 kg antioxi-deringsmiddel (butyleret hydroxytoluen) og 25,5 kg mineralolie til dannelse af en klæbende opslæmning. En del af denne opslæmning hældes på et ark siliconovertrukket slippapir, og opløsningsmidlet fordamper.
Et andet laminat fremstilles bestående af et bøjeligt polyurethan-skum med halvåbne celler (skummet har ca. 32 celler pr., cm med fra ca. 30 til ca. 70% åbne celler) med en tykkelse på ca.
0,76 mm overtrukket med bøjeligt polyurethan med en tykkelse på ca.
0,05 mm.
Det klæbende/slipapirslaminat og det bøjelige polyurethanskum/ bøjeligt polyurethanlaminat presses forsigtigt sammen (skummet bringes i berøring med klæbestoffet) ved passage gennem trykruller, så at der dannes en bandage.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US59980475 | 1975-07-28 | ||
US05/599,804 US3972328A (en) | 1975-07-28 | 1975-07-28 | Surgical bandage |
Publications (3)
Publication Number | Publication Date |
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DK337376A DK337376A (da) | 1977-01-29 |
DK147226B true DK147226B (da) | 1984-05-21 |
DK147226C DK147226C (da) | 1984-11-26 |
Family
ID=24401162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK337376A DK147226C (da) | 1975-07-28 | 1976-07-27 | Bandage med trykfoelsomt klaebelag og vandfast, boejelig polymerfilm |
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US (1) | US3972328A (da) |
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AR (1) | AR211930A1 (da) |
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DK (1) | DK147226C (da) |
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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 GR GR51108A patent/GR60008B/el unknown
- 1976-06-25 AU AU15297/76A patent/AU506284B2/en not_active Expired
- 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 BR BR7604822A patent/BR7604822A/pt unknown
- 1976-07-26 NO NO762602A patent/NO143254C/no unknown
- 1976-07-26 DD DD194063A patent/DD126788A5/xx unknown
- 1976-07-26 FR FR7622752A patent/FR2319326A1/fr active Granted
- 1976-07-26 IL IL50124A patent/IL50124A/xx unknown
- 1976-07-26 FI FI762132A patent/FI68520C/fi not_active IP Right Cessation
- 1976-07-27 SE SE7608486A patent/SE434911B/xx not_active IP Right Cessation
- 1976-07-27 PT PT65410A patent/PT65410B/pt unknown
- 1976-07-27 CH CH959576A patent/CH616334A5/fr not_active IP Right Cessation
- 1976-07-27 ES ES450189A patent/ES450189A1/es not_active Expired
- 1976-07-27 DK DK337376A patent/DK147226C/da not_active IP Right Cessation
- 1976-07-27 AR AR246088A patent/AR211930A1/es active
- 1976-07-28 JP JP51091265A patent/JPS5216895A/ja active Pending
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