SE414994B - Venkateterforband - Google Patents

Venkateterforband

Info

Publication number
SE414994B
SE414994B SE7812240A SE7812240A SE414994B SE 414994 B SE414994 B SE 414994B SE 7812240 A SE7812240 A SE 7812240A SE 7812240 A SE7812240 A SE 7812240A SE 414994 B SE414994 B SE 414994B
Authority
SE
Sweden
Prior art keywords
dressing
foil
catheter
layer
suction
Prior art date
Application number
SE7812240A
Other languages
English (en)
Other versions
SE7812240L (sv
Inventor
B Olson
Original Assignee
Landstingens Inkopscentral
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 Landstingens Inkopscentral filed Critical Landstingens Inkopscentral
Priority to SE7812240A priority Critical patent/SE414994B/sv
Priority to US06/096,553 priority patent/US4275721A/en
Priority to GB7940418A priority patent/GB2035096B/en
Priority to DE2947427A priority patent/DE2947427C2/de
Priority to FI793703A priority patent/FI69756C/fi
Priority to NLAANVRAGE7908572,A priority patent/NL184875C/xx
Priority to FR7929033A priority patent/FR2442636B1/fr
Priority to IT12846/79A priority patent/IT1198995B/it
Priority to AT0749179A priority patent/AT369982B/de
Priority to NO793851A priority patent/NO144869C/no
Priority to JP15308379A priority patent/JPS55146170A/ja
Publication of SE7812240L publication Critical patent/SE7812240L/sv
Publication of SE414994B publication Critical patent/SE414994B/sv

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/02Holding devices, e.g. on the body
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/02Holding devices, e.g. on the body
    • A61M2025/0266Holding devices, e.g. on the body using pads, patches, tapes or the like
    • A61M2025/0273Holding devices, e.g. on the body using pads, patches, tapes or the like having slits to place the pad around a catheter puncturing site
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S128/00Surgery
    • Y10S128/26Cannula supporters

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Biophysics (AREA)
  • Vascular Medicine (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Materials For Medical Uses (AREA)

Description

f 78122ëO-5 insticksstället och kateterslangen träs upp genom hålet, ner genom ett annat hål och upp genom ett tredje hål. På detta sätt antages säker fastsättning av slangen erhållas. En annan variant av häftan är utformad som en rektangel med ett centralt hål med flikar och en slits till närmaste sidokant. Kateterslangen träs med hjälp av slitsen genom hålet och flikarna fastsättes på slangen och antages hålla denna kvar på plats. Någon möjlighet att hålla såret rent från blod eller att suga upp t.ex. insprutad näringslösning, som tränger upp genom instickshålet, finns ej. Det torde vara mycket svårt att kombinera en kompress med denna häfta. Den föreslagna häf- tan kan vidare ej användas för en kateter med kopplingsrör och kran.
I den amerikanska patentskriften 3 683 911 föreslås en bak- teriehämmande fastsättningsanordning för en enkel kateterslang.
Anordningen består av en bottenhäfta, från vilken ett rör sticker upp; Häftan är på undersidan belagd med ett lim i kombination med I bakteriedödande ämne. Samma beläggning finns på insidan av röret. A Röret och häftan har en slits, som möjliggör placering av anordnin- gen runt en kateterslang. Med hjälp av häftans och rörets lim skall kateterslangen hållas på plats och bakterietillträde till insticks- såret hindras. Någon möjlighet att kombinera anordningen med en su- gande kropp, t.ex. en kompress, som håller såret fritt från blod, finns ej. Vidare kan anordningen ej användas vid katetrar med kopp- lingsrör och kran och det torde vara mycket besvärligt att byta en sådan häfta och samtidigt lossa både slangen från anordningens rör och häftan från huden på patienten utan att samtidigt avsevärt för- skjuta slangen och irritera instickssåret. Ändamålet med föreliggande uppfinning är att åstadkomma ett förband för en venkateter med rörformat kopplingsstycke och tillhö- rande propp eller kran, vilket förband ej uppvisar de nämnda nackde- larna och vilket förband är lätt att anbringa och byta och lätt med- ger att området runt insticksstället hâlles sterilt. Ändamålet enligt uppfinningen uppnås med ett venkateterför- band, som omfattar en bärfolie med ett klibbskikt på ena sidan, vil- ket är täckt av ett skyddande avdragbart släppskikt, varvid en slits är anordnad genom bärfolien, klibbskiktet och släppskiktet från en kant på förbandet till en central del av förbandet, och som känne- tecknas av att bärfolien är avlång, vätsketät och luftgenomsläpplig, att mellan klibbskiktet och släppskiktet är anordnat ett vätskeabsor- berande sugskikt, som är väsentligt mindre än halva bärfolien och i sin helhet är placerat inom den ena halvan av bärfolien, då denna 7812240-5 delas tvärs över, och på avstånd från bärfoliens kanter, att lämp- ligen mellan sugskiktet och släppskiktet är anordnat en icke-sugan- de vätskegenomsläpplig folie, som täcker sugskiktet, varvid sugskik- tet eller i förekommande fall den icke-sugande folien vid användning av förbandet är avsett att ligga an mot venkateterns insticksställe, att släppskiktet är uppdelat i tvâ släppfolier, som sträcker sig från vardera kortänden av bärfolien och möts i höjd med sugskiktet och den eventuella icke-sugande folien, där släppfoliernas ändpar- tier bildar två gripflikar, den ena bakâtvikt och den andra liggan- de däröver, och att slitsen sträcker sig från den kortände på för- bandet som är längst bort från sugskiktet och fram till ett stycke från sugskiktet.
Lämpligen är förbandet rektangulärt. Sugskiktet bör placeras centralt på den ena halvan av bärfolien och upptaga t.ex. ca en tredjedel av förbandets bredd och t.ex. ca en femtedel av dess längd. Förbandets längd är lämpligen ungefär 1,5 gånger dess bredd.
För att förbandet skall kunna användas vid en s.k. veneflon- kateter, som omfattar en kateterslang, ett rörformigt kopplingsstyc- ke med två sidoriktade vingar och på den yttre delen av ena Vingen en propphållare med propp, anordnas lämpligen en rivperforering, t.ex. fyrkantig, avsedd för friläggande av ett motsvarande urtag, genom bärfolien, klibbskiktet och den ena släppfolien vid förban- dets ena sidokant med sådan placering, att då urtaget är frilagt_ge- nom bortrivning och förbandet har befriats från släppfolierna och placerats över en veneflonkateter med den icke-sugande vätskegenom- släppliga folien över kateterns insticksställe och med slitsen i förbandet på kateterns anslutningsrör, kommer kateterns propphâlla- re att ligga i det genom rivperforeringen erhållna urtaget.
Vid användning av föreliggande förband borttages först den av släppfolierna som ej är slitsad, vilket lätt sker genom använd- ning av släppfoliens gripflik. Därefter placeras förbandet med den vätskegenomsläppliga, icke-sugande folien och sugkroppen över in- sticksstället, varefter den andra skyddsfolien borttages samtidigt som de två flikar, som bildas genom slitsen i förbandet, anbringas över kateterns vingar och pâ och vid sidan av det rörformiga kopp- lingsstycket. Vid en veneflonkateter frilägges urtaget, som bildas i förbandets sida av rivperforeringen, genom bortrivning innan släppfolierna avlägsnas. Därefter anbringas förbandet på beskrivet sätt och så att urtaget kommer att ligga runt propphållaren.
Förband enligt uppfinningen förpackas lämpligen i en stëril 78122W~5 förpackning tillsammans med en liten kompress, med lagom storlek för att ligga under kateterns vingar och hindra att katetern irri- terar patientens hud. Vid användning av förbandet öppnas då först förpackningen, varpå den sterila kompressen placeras under kateterns vingar. Därefter anbringas förbandet på ovan beskrivet sätt.
Förbandet enligt uppfinningen är mycket lätt att anbringa och byta. Katetern hålls säkert på plats genom att förbandets två flikar håller fast kateterns vingar både ovanför och nedanför kate- terhâlet. Speciellt viktigt är att flikarna är tillräckligt långa.
Däremot behöver den klistrande biten runt sugkroppen ej vara så stor.
Sugkroppen placeras därför inom en halva av förbandet och flikarna kan därför vara något längre än halva förbandet.
Genom sugkroppen med den vätskegenomsläppliga icke-sugande folien hålles såret rent från blod och eventuella genom katetern insprutade lösningar, som kan tränga upp genom såret. Den icke-su- gande folien medför både att såret hålls torrt och att förbandet ej klibbar fast vid såret.
Med föreliggande förband är det mycket lätt att hålla omrâ- det kring en venkateter sterilt. Till detta medverkar flera fakto- rer.Delsanvändes endast en komponent som förband, varvid den lämpli- gen levereras i en steril förpackning tillsamans med en kompress att lägga under kateterns vingar. Förbandet är lätt att anbringa och något onödigt plockande med förbandet erfordras således ej. Bärar- materialet för häftämnet eller klibbskiktet är vidare utformat som ett spärrskikt, som är luftgenomträngligt men vätsketätt. Bakterier kan således ej med vätska tränga in genom förbandet och förorena in- sticksstället. Slitsen i förbandet går vidare ej ända fram till sug- kroppen. Bakterier kan således ej heller tränga in i såret genom en kontakt mellan sugkroppen och omgivande luft eller fukt.
Folieskikten i förbandet, dvs bärfolien, den vätskegenomsläpp- liga icke-sugande folien och de skyddande släppfolierna, är utforma- de av lämpliga arkformiga material, såsom täta plastfolier eller -filmer, fibermaterial, t.ex. nonwoven eller papper, eller väv.
Materialet i bärfolien är lämpligen impregnerat nonwoven, såsom ett rayonnonwoven, och absorptionskroppen kan t.ex. utgöras av ett spunbonded cellulosaregenerat av lämplig tjocklek.
Den icke-sugande, vätskegenomsläppliga folien kan t.ex. va- ra en perforerad plastfilm, eventuellt aluminiserad, ett syntetfi- bernonwoven eller dylikt. Såsom klibbskikt kan användas en häftmas- sa på akrylatbasis. Släppfolierna kan vara gjorda av lämpligt'si- 78122/40-5 likonbelagt papper.
Uppfinningen beskrives i det följande närmare med hänvisning till de åtföljande ritningarna, varpå fig. l visar en delvis genom- bruten perspektivvy av en lämplig utföringsform av förbandet enligt uppfinningen, fig. 2 visar en delvis genombruten perspektivvy av detta förband anbringat på en veneflonkateter och fig. 3 visar en perspektivvy av förbandet anbringat på en kateter med kran.
På figurerna visar för tydlighets skull tjockleken av några av skikten överdrivna.
Pâ fig. l visas en perspektivvy av en utföringsform av för- bandet enligt uppfinningen. Förbandet består av en rektangulär, vat- tentät och luftgenomsläpplig bärfolie 1. Folien är belagd med ett självhäftande lim 2. Centralt på ena halvan av folien sitter en kvad- ratisk sugkropp 3, med ett lika stort ovanpâliggande perforerat, icke-sugande ark 4. Hela bärfolien med ovanpåliggande skikt täckes av två skyddspapper 5 och 6. Dessa möts över sugkroppen och bildar två gripflikar 7 och 8 med sina ändpartier. Den ena gripfliken 7 är tillbakavikt och den andra fliken 8 ligger över den tillbakavikta fliken. I kanten på förbandet finns en fyrkantig rivperforering 18.
Det beskrivna förbandet kan t.ex. vara ca 95 mm långt och 60 mm brett. Därvid kan sugskiktet vara ca 20 gånger 20 mm och vara placerat ca 15 mm från närmaste kortsida och ca 20 mm från vardera långsidan. Slitsen går lämpligen centralt från kortsidan längst bort från sugkroppen fram till ca 5 mm från sugkroppen.
På fig. 2 visas förbandet anbringat över en veneflonkateter.
Katetern omfattar en slang l5, ett rörformigt kopplingsstycke 17 och två sidogående vingar 10. I ytterkanten av den ena Vingen 10 finns en propphållare 12 och en propp 13. Proppen 13 kan användas för att sluta till röret 17. Ovanpå röret 17 finns ett ytterligare urtag med en propp 14. I öppningen under proppen 14 finns ett membran, som hindrar att blod tränger upp genom öppningen, men som samtidigt möjliggör tillförsel av t.ex. läkemedel genom öppningen, samtidigt som röret 17 är öppet och t.ex. blod tillföres därigenom. Under vin- garna ligger en kompress 20. Kateterns slang 15, som visas prickad där den ej är frilagd, går in genom patientens hud 16 vid insticks- stället 19. Ovanpå insticksstället 19 är den perforerade folien 4 och sugskiktet 3 placerade. Förbandets två flikar, som bildas genom slitsen 9, är placerade över vingarna 10 och på var sin sida om rö- ret 17.
Pâ fig. 3 visas förbandet anbringat på en central kateter, som uppvisar ett rörformat kopplingsstycke 17 och en kran ll, som

Claims (4)

78122W~5 kan stänga och öppna kopplingsstycket. I detta fall är det ej nöd- vändigt att frilägga urtaget 18 genom bortrivning. I övrigt är för- bandet anbringat på samma sätt på denna kateter som på veneflonka- tetern. De delar av förbandet och katetern, som ligger under spärr- folien 1, är utritade med streckade linjer. Patentkrav
1. l. Venkateterförband omfattande en bärfolie (1) med ett klibb- skikt (2) på ena sidan, vilket är täckt av ett skyddande avdragbart släppskikt, varvid en slits är anordnad genom bärfolien (1), klibb- skiktet (2) och släppskiktet från en kant på förbandet till en cent- ral del av förbandet, k ä n n e t e c k n a t av att bärfolíen är avlång, vätsketät och luftgenomsläpplig, att mellan klibbskiktet (2) och släppskiktet är anordnat ett vätskeabsorberande sugskikt (3), som är väsentligt mindre än halva bärfolien och i sin helhet är pla- cerat inom den ena halvan av bärfolien (1), då denna delas tvärs över, och på avstånd från bärfoliens kanter, att lämpligen mellan sugskiktet och släppskiktet är anordnat en icke-sugande vätskegenom- släpplig folie (4), som täcker sugskiktet (3), varvid sugskiktet el- ler i förekommande fall den icke-sugande folien vid användning av förbandet är avsett att ligga an mot venkateterns insticksställe, att släppskiktet är uppdelat i två släppfolier (5, 6), som sträcker sig från vardera kortänden av bärfolien (1) och möts i höjd med sug- skiktet (3) och den eventuella icke-sugande folien (4), där släpp- foliernas ändpartier bildar två gripflikar, den ena (7) bakåtvikt och den andra (8) liggande däröver, och att slitsen sträcker sig från den kortände på förbandet som är längst bort från sugskiktet (3) och fram till ett stycke från sugskiktet.
2. Förband enligt krav l, k ä n n e t e c k n a t av att sugskiktet (3) är placerat centralt på den ena halvan av spärrfoli- en och upptager ungefär en tredjedel av förbandets bredd och unge- fär en femtedel av längden.
3. Förband enligt krav l eller 2, vilket innefattar den ic- ke-sugande folien (4) och är avsett för en veneflonkateter med an- slutningsrör (17), två sidogående vingar (10) och en propphållare (12) med propp (13) på den ena Vingen, k ä n n e t e c k n a_} 7812240-5 av att en lämpligen fyrkantig rivperforering (18), avsedd för fri- läggande av ett motsvarande urtag, är anordnad genom spärrfolien (1), klibbskiktet (2) och släppfolien (5) vid förbandets ena sido- kant med sådan placering, att då urtaget är frilagt genom bortriv- ning och förbandet har placerats över en veneflonkateter med den icke-sugande vätskegenomsläppliga folien (4) över kateterns insticks- ställe (19) och med slitsen (9) 1 förbandet på kateterns anslutnings- rör (l7), kommer veneflonkateterns propphållare (12) att ligga i det genom rivperforeringen erhållna urtaget (18).
4. Förband enligt något av kraven 1 - 3, k ä n n e t e c k - n a t av att dess längd är ca 1,5 gånger så stor som dess bredd.
SE7812240A 1978-11-28 1978-11-28 Venkateterforband SE414994B (sv)

Priority Applications (11)

Application Number Priority Date Filing Date Title
SE7812240A SE414994B (sv) 1978-11-28 1978-11-28 Venkateterforband
US06/096,553 US4275721A (en) 1978-11-28 1979-11-21 Vein catheter bandage
GB7940418A GB2035096B (en) 1978-11-28 1979-11-22 Vein catheter dressing
DE2947427A DE2947427C2 (de) 1978-11-28 1979-11-24 Bandage für einen Venenkatheter
FI793703A FI69756C (fi) 1978-11-28 1979-11-26 Venkateterfoerband
NLAANVRAGE7908572,A NL184875C (nl) 1978-11-28 1979-11-26 Aderkatheterverband.
FR7929033A FR2442636B1 (fr) 1978-11-28 1979-11-26 Bandage pour catheter veineux
IT12846/79A IT1198995B (it) 1978-11-28 1979-11-27 Fasciatura per catetere venoso
AT0749179A AT369982B (de) 1978-11-28 1979-11-27 Bandage zum festhalten eines venenkatheters an einem patienten
NO793851A NO144869C (no) 1978-11-28 1979-11-27 Anordning til steril fastholdelse og beskyttelse av venekateter og dets innstikningsomraade
JP15308379A JPS55146170A (en) 1978-11-28 1979-11-28 Bandage for vein catheter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7812240A SE414994B (sv) 1978-11-28 1978-11-28 Venkateterforband

Publications (2)

Publication Number Publication Date
SE7812240L SE7812240L (sv) 1980-05-29
SE414994B true SE414994B (sv) 1980-09-01

Family

ID=20336475

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7812240A SE414994B (sv) 1978-11-28 1978-11-28 Venkateterforband

Country Status (11)

Country Link
US (1) US4275721A (sv)
JP (1) JPS55146170A (sv)
AT (1) AT369982B (sv)
DE (1) DE2947427C2 (sv)
FI (1) FI69756C (sv)
FR (1) FR2442636B1 (sv)
GB (1) GB2035096B (sv)
IT (1) IT1198995B (sv)
NL (1) NL184875C (sv)
NO (1) NO144869C (sv)
SE (1) SE414994B (sv)

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US4838868A (en) * 1986-05-23 1989-06-13 Molnlycke Ab Tape for securing a hypodermic needle
WO1992012757A1 (en) * 1991-01-25 1992-08-06 Lic Hygien Ab A windowed vein catheter dressing
WO1993000788A2 (en) * 1991-11-29 1993-01-21 Nikomed Aps A bandage for fixating a cannula of a venous catheter relative toa skin surface part of a person

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JPS6142947U (ja) * 1984-08-22 1986-03-20 日本バイリーン株式会社 カテ−テル保持用パツド
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US4702736A (en) * 1985-05-03 1987-10-27 Glenda Kalt Universal clamp
US5308339A (en) * 1985-05-03 1994-05-03 Medical Distributors, Inc. Universal clamp
US5037397A (en) * 1985-05-03 1991-08-06 Medical Distributors, Inc. Universal clamp
US4838878A (en) * 1985-05-03 1989-06-13 Glenda G. Kalt Universal clamp
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US4737143A (en) * 1986-05-12 1988-04-12 Russell David A Catheter coupling and attachment assembly
US4744355A (en) * 1986-05-23 1988-05-17 Faasse Jr Adrian L Hinged end wound dressing
DE3643985A1 (de) * 1986-05-28 1987-12-03 Lohmann Gmbh & Co Kg Fixiersystem zur befestigung von kathetern, kanuelen od.dgl. auf der hautoberflaeche sowie verfahren zur sterilen befestigung derselben
NO163472C (no) * 1987-02-24 1990-06-06 Ken Heimreid Plaster til bruk ved proevetaking av blod.
GB8706116D0 (en) * 1987-03-14 1987-04-15 Smith & Nephew Ass Adhesive dressings
GB8721659D0 (en) * 1987-09-15 1987-10-21 Smith & Nephew Ass Adhesive coated dressings & applicators
US4861652A (en) * 1987-10-13 1989-08-29 Kimberly-Clark Corporation Diaper article with elasticized waist panel
US5015244A (en) * 1988-11-08 1991-05-14 Smiths Industries Public Limited Company Adhesive ring assemblies for collection bags
DE3907007A1 (de) * 1989-03-04 1990-09-13 Joachim Dr Med Kell Wundverband
US5261893A (en) * 1989-04-03 1993-11-16 Zamierowski David S Fastening system and method
US4969880A (en) * 1989-04-03 1990-11-13 Zamierowski David S Wound dressing and treatment method
US5100396A (en) * 1989-04-03 1992-03-31 Zamierowski David S Fluidic connection system and method
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Also Published As

Publication number Publication date
JPS55146170A (en) 1980-11-14
IT1198995B (it) 1988-12-21
GB2035096A (en) 1980-06-18
FR2442636B1 (fr) 1985-08-30
FI69756C (fi) 1986-05-26
NL184875C (nl) 1989-12-01
FI69756B (fi) 1985-12-31
NO144869B (no) 1981-08-24
SE7812240L (sv) 1980-05-29
DE2947427A1 (de) 1980-06-04
NL7908572A (nl) 1980-05-30
NO144869C (no) 1981-12-02
JPS622544B2 (sv) 1987-01-20
FR2442636A1 (fr) 1980-06-27
IT7912846A0 (it) 1979-11-27
DE2947427C2 (de) 1984-01-19
US4275721A (en) 1981-06-30
AT369982B (de) 1983-02-25
NO793851L (no) 1980-05-29
GB2035096B (en) 1982-12-22
FI793703A (fi) 1980-05-29
ATA749179A (de) 1982-07-15

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