DK2520412T3 - Fremgangsmåde til fremstilling af en rørformet genstand til indføring i en kropskanal - Google Patents

Fremgangsmåde til fremstilling af en rørformet genstand til indføring i en kropskanal Download PDF

Info

Publication number
DK2520412T3
DK2520412T3 DK11164474.6T DK11164474T DK2520412T3 DK 2520412 T3 DK2520412 T3 DK 2520412T3 DK 11164474 T DK11164474 T DK 11164474T DK 2520412 T3 DK2520412 T3 DK 2520412T3
Authority
DK
Denmark
Prior art keywords
tube
mandrel
extruded tube
pointed mandrel
pointed
Prior art date
Application number
DK11164474.6T
Other languages
English (en)
Inventor
Andrea Schmid
Mats Andersson
Original Assignee
Dentsply Ih Ab
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 Dentsply Ih Ab filed Critical Dentsply Ih Ab
Application granted granted Critical
Publication of DK2520412T3 publication Critical patent/DK2520412T3/da

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001Combinations of extrusion moulding with other shaping operations
    • B29C48/0022Combinations of extrusion moulding with other shaping operations combined with cutting
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F5/00Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices ; Anti-rape devices
    • A61F5/44Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Colostomy devices
    • A61F5/451Genital or anal receptacles
    • A61F5/453Genital or anal receptacles for collecting urine or other discharge from male member
    • 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
    • A61M25/0009Making of catheters or other medical or surgical tubes
    • 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
    • A61M25/0017Catheters; Hollow probes specially adapted for long-term hygiene care, e.g. urethral or indwelling catheters to prevent infections
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001Combinations of extrusion moulding with other shaping operations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/13Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C57/00Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • B29C57/02Belling or enlarging, e.g. combined with forming a groove
    • B29C57/04Belling or enlarging, e.g. combined with forming a groove using mechanical means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00Producing tubular articles
    • B29D23/001Pipes; Pipe joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/269Extrusion in non-steady condition, e.g. start-up or shut-down
    • B29C48/2694Intermittent extrusion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/30Extrusion nozzles or dies
    • B29C48/32Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/355Conveyors for extruded articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/753Medical equipment; Accessories therefor
    • B29L2031/7542Catheters

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Hematology (AREA)
  • Anesthesiology (AREA)
  • Biophysics (AREA)
  • Epidemiology (AREA)
  • Reproductive Health (AREA)
  • Nursing (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Vascular Medicine (AREA)
  • Urology & Nephrology (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Materials For Medical Uses (AREA)

Claims (14)

1. Fremgangsmåde til fremstilling af en medicinsk rørformet genstand, fx et kateter, til indføring i en kropskanal, omfattende følgende trin: ekstrudering af et rør ved skubning af rørmateriale gennem en ekstruderdyse (3); afskæring af det ekstruderede rør i en forudbestemt længde; og fremføring af en initial del af det ekstruderede rør over en spids dorn (4); hvor den spidse dorn (4) er placeret tæt ved ekstruderdysen (3), så der dannes en udfladet ende; og hvor den spidse dorn (4), efter at en forudbestemt længde af det ekstruderede rør er fremført på den spidse dorn (4), føres bort fra ekstruderdysen (3) til hindring af, at resten af det ekstruderede rør ekspanderes af den spidse dorn (4).
2. Fremgangsmåde ifølge krav 1, hvor den spidse dorn (4) forskydes i en retning af ekstruderingen.
3. Fremgangsmåde ifølge krav 1 eller 2, hvor den spidse dorn (4) forskydes med en hastighed, der hovedsagelig svarer til en hastighed, hvormed det ekstruderede rør fremstilles.
4. Fremgangsmåde ifølge ethvert af de foregående krav, omfattende det yderligere trin med fastgøring af den udfladede ende af det ekstruderede rør ved den spidse dorn (4).
5. Fremgangsmåde ifølge ethvert af de foregående krav, hvor det rørformede materiale omfatter mindst ét af monosaccharid, disaccharid, oligosaccharid og polysaccharid.
6. Fremgangsmåde ifølge ethvert af de foregående krav, omfattende det yderligere trin med formning af en ende af røret modsat den udfladede ende til en afrundet spidsdel, hvilken formning fortrinsvis indebærer smeltning.
7. Fremgangsmåde ifølge ethvert af de foregående krav, yderligere omfattende dannelse af en åbning i rørvæggen, hvilken dannelse fortrinsvis omfatter mindst én af udstansning og blanketskæring.
8. Apparat til fremstilling af en medicinsk rørformet genstand, fx et kateter, til indføring i en kropskanal, omfattende: en ekstruderdyse (3) beregnet til at ekstrudere et rør; en ekstruder indrettet til at skubbe rørmateriale gennem ekstruderdysen (3); et skæreorgan (12) til afskæring af det ekstruderede rør i en forudbestemt længde; og en spids dorn (4), hvor den spidse dorn er anbragt tæt ved ekstruderdysen (3), så der fremføres en initial del af det ekstruderede rør på den spidse dorn (4), hvorved der dannes en udfladet ende, og hvor den spidse dorn (4) er forskydelig, så den spidse dorn (4) kan forskydes bort fra ekstruderdysen (3), når en forudbestemt længde af det ekstruderede rør er fremført over dornen (4), for at hindre, at resten af det ekstruderede rør ekspanderes af den spidse dorn (4).
9. Apparat ifølge krav 8, hvor den spidse dorn (4) kan forskydes i en retning af ekstruderingen.
10. Apparat ifølge krav 8 eller 9, hvor den spidse dorn (4) kan forskydes med en hastighed, der hovedsagelig svarer til en hastighed, hvormed det ekstruderede rør fremstilles.
11. Apparat ifølge ét af kravene 8 til 10, hvor den spidse dorn har en konisk eller keglestubagtig form.
12. Apparat ifølge ethvert af kravene 8 til 11, yderligere omfattende et klemmearrangement til fastgøring af den initiale del af det ekstruderede rør til den spidse dorn (4), mens den spidse dorn (4) forskydes bort fra ekstruderdysen (3).
13. Apparat ifølge ethvert af kravene 8 til 12, yderligere omfattende mindst ét af et udstansningsorgan (11) og et afrundet spidsformende organ (13) placeret i nærheden af ekstruderdysen (3).
14. Apparat ifølge ethvert af kravene 8 til 13, hvor ekstruderdysen (3) yderligere omfatter en centralt udragende tap (10), hvor ekstruderdysen (3) er indrettet til at ekstrudere røret over den centralt udragende tap (10).
DK11164474.6T 2011-05-02 2011-05-02 Fremgangsmåde til fremstilling af en rørformet genstand til indføring i en kropskanal DK2520412T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11164474.6A EP2520412B1 (en) 2011-05-02 2011-05-02 Method for manufacturing of a tubular object for insertion into a body passageway

Publications (1)

Publication Number Publication Date
DK2520412T3 true DK2520412T3 (da) 2015-11-02

Family

ID=44317931

Family Applications (1)

Application Number Title Priority Date Filing Date
DK11164474.6T DK2520412T3 (da) 2011-05-02 2011-05-02 Fremgangsmåde til fremstilling af en rørformet genstand til indføring i en kropskanal

Country Status (10)

Country Link
US (1) US9352504B2 (da)
EP (2) EP2965891A1 (da)
JP (1) JP6008944B2 (da)
CN (1) CN103492156B (da)
AU (1) AU2012251696B2 (da)
BR (1) BR112013027717B1 (da)
DK (1) DK2520412T3 (da)
HU (1) HUE026835T2 (da)
RU (1) RU2591950C2 (da)
WO (1) WO2012150251A1 (da)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HUE050448T2 (hu) 2012-11-14 2020-12-28 Hollister Inc Eldobható katéter szelektíven lebomló belsõ maggal
WO2015069843A2 (en) 2013-11-08 2015-05-14 Hollister Incorporated Oleophilic lubricated catheters
US10874769B2 (en) 2013-12-12 2020-12-29 Hollister Incorporated Flushable disintegration catheter
US10426918B2 (en) 2013-12-12 2019-10-01 Hollister Incorporated Flushable catheters
US10463833B2 (en) 2013-12-12 2019-11-05 Hollister Incorporated Flushable catheters
CA2933525C (en) 2013-12-12 2020-11-17 Hollister Incorporated Flushable catheters
HUE067252T2 (hu) 2015-06-17 2024-10-28 Hollister Inc Szelektíven vízzel szétmállasztható anyagok és ilyen anyagokból készített katéterek
EP3178514A1 (en) * 2015-12-09 2017-06-14 Dentsply IH AB Urinary catheter with integrated connector
USD842984S1 (en) 2015-12-09 2019-03-12 Dentsply Ih Ab Catheter
EP3184140B1 (en) * 2015-12-21 2021-10-06 Dentsply IH AB Catheters with bevelled drainage holes as well as method and device for forming such holes
CN106393753A (zh) * 2016-08-30 2017-02-15 重庆凯龙科技有限公司 用于传感器管路的制备方法
CN109773845B (zh) * 2019-01-28 2021-08-06 六安中财管道科技有限公司 一种pvc管材、型材移动切割装置
CN116271420B (zh) 2019-02-08 2025-11-21 科洛普拉斯特公司 导尿管
CN109822346B (zh) * 2019-04-02 2024-05-28 佛山市顺德区思创自动化机械有限公司 留置针扩口组装机
CN110948844A (zh) * 2019-12-30 2020-04-03 巢湖市金辉自控设备有限公司 一种自动控制的塑胶管扩口裁剪装置
KR102305650B1 (ko) * 2021-05-21 2021-09-29 (주)명보 튜브 어셈블리 제조 장치 및 튜브 어셈블리 제조 방법
USD1083086S1 (en) 2022-12-20 2025-07-08 Hollister Incorporated Intermittent urinary catheter
JP7795806B2 (ja) * 2023-01-26 2026-01-08 株式会社プラ技研 マルチルーメンチューブの押出成型装置
USD1103378S1 (en) 2024-05-29 2025-11-25 Hollister Incorporated Intermittent urinary catheter

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1077474A (fr) 1953-01-15 1954-11-08 Procédé et dispositif pour la fabrication de sondes et instruments analogues
US3677684A (en) * 1969-12-15 1972-07-18 Nat Distillers Chem Corp Apparatus for enlarging an extremity of a plastic pipe
US3708253A (en) * 1970-09-01 1973-01-02 J Lemelson Extrusion apparatus
US3983203A (en) * 1973-11-16 1976-09-28 Sherwood Medical Industries Inc. Method of making a catheter with an integral Luer lock means
DE2612993C3 (de) * 1976-03-26 1979-07-12 Zumbach Electronic Ag, Orpund (Schweiz) Vorrichtung zur Prüfung der Wandstärke eines Rohres
US4234301A (en) * 1979-03-19 1980-11-18 Hayes Fay A Gasket feeding apparatus for an inplace gasket belling machine
US4250072A (en) * 1979-05-18 1981-02-10 Flynn Vincent J Radiopaque polyurethane resin compositions
GB2284764B (en) * 1993-11-30 1998-08-05 Mmg A catheter and urine collection device assembly
NL9400453A (nl) * 1994-03-22 1995-11-01 Wavin Bv Werkwijze en inrichting voor het vervaardigen van biaxiaal georiënteerde buis uit thermoplastisch kunststofmateriaal.
DE19751103A1 (de) 1997-11-18 1999-05-27 Autodesk Inc Verfahren zum Bemaßen von auf einer Anzeigeeinrichtung dargestellten graphischen Objekten
GB9807856D0 (en) * 1998-04-15 1998-06-10 Smiths Industries Plc Medico-surgical tubes and methods of manufacture
GB9810850D0 (en) * 1998-05-20 1998-07-22 Smiths Industries Plc Medico-surgical tubes and methods of manufacture
US7604472B2 (en) * 2003-07-12 2009-10-20 Hayes Jr Frank F Method and apparatus for forming flared tube ends
JP3619239B1 (ja) * 2003-08-27 2005-02-09 株式会社プラ技研 樹脂製多層チューブの押出成形装置
KR100689238B1 (ko) * 2005-06-17 2007-03-02 이근호 발룬 카테테르 제조장치 및 그 방법
EP2301595B1 (en) * 2009-09-23 2014-01-22 Dentsply IH AB Flushable catheter and method for producing such a catheter

Also Published As

Publication number Publication date
US20130116662A1 (en) 2013-05-09
EP2520412B1 (en) 2015-08-12
AU2012251696A1 (en) 2013-10-17
JP2014523351A (ja) 2014-09-11
EP2965891A1 (en) 2016-01-13
US9352504B2 (en) 2016-05-31
AU2012251696A8 (en) 2015-11-05
HUE026835T2 (en) 2016-07-28
EP2520412A1 (en) 2012-11-07
AU2012251696B2 (en) 2016-07-21
CN103492156A (zh) 2014-01-01
BR112013027717B1 (pt) 2021-03-16
RU2013153265A (ru) 2015-06-10
BR112013027717A2 (pt) 2016-12-27
WO2012150251A1 (en) 2012-11-08
CN103492156B (zh) 2016-02-17
RU2591950C2 (ru) 2016-07-20
JP6008944B2 (ja) 2016-10-19

Similar Documents

Publication Publication Date Title
DK2520412T3 (da) Fremgangsmåde til fremstilling af en rørformet genstand til indføring i en kropskanal
DE102006039656B4 (de) Vorrichtung und Verfahren zum Herstellen eines Hohlkörpers aus einem rondenförmigen Werkstück
CN101310886B (zh) 制造管连接件的方法及装置
WO2006138579A3 (en) Nasal and oral cannula having two capabilities and method of producing same
KR102301057B1 (ko) 코루게이터를 위한 향상된 공기 압력 제어 방법
DE1604689A1 (de) Verfahren und Vorrichtung zur Formung bzw. Herstellung hohler Gegenstaende
WO2019214954A1 (de) Verfahren und vorrichtung zur herstellung eines wärmegedämmten leitungsrohrs
JPH0615733A (ja) プラスチツク管に方向性を付与する装置及びこの装置により製造され方向性を付与されたリブ付きのプラスチツク管
EP3134248B1 (de) Vorrichtung und verfahren zur zyklus- und aufwandsoptimierten thermischen umformung von schlauchrohlingen
EP2125329A1 (de) Verfahren und vorrichtung zur fortlaufenden herstellung eines kunststoff-verbundrohres mit rohrmuffe
CN111619091A (zh) 一种ppr管件生产制造成型加工处理方法
EP2712721A1 (en) A method and apparatus for injection moulding of an elongated hollow article
CN1264620C (zh) 用于在管道上制造旁通环口的方法和设备
DE112006001118B4 (de) Aufweitungsverfahren und -vorrichtung
EP1053858B1 (de) Verfahren und Vorrichtung zum Herstellen von hohlkörperförmigen Artikeln aus thermoplastischem Kunststoff durch Saugblasen
DE19627675C2 (de) Tiefziehsystem zur Herstellung von Hohlkörpern, insbesondere dickbauchigen Behältnissen mit engen Halsbereichen
DE3807688A1 (de) Verfahren und vorrichtung zur herstellung von kunststoffrohr-formstuecken
US11712733B2 (en) Tubular joint roll forming machine
CN101791857B (zh) 导管端头的半球形成型方法及实现该方法的工具
AU774024B2 (en) Method and apparatus for making a pipe having a socket, and a pipe having a socket
AT522497B1 (de) Verfahren zum Herstellen eines Rohres, sowie Vorrichtung zum Durchführen des Verfahrens
EP2574444A3 (de) Verfahren und Vorrichtung zur Herstellung eines doppelwandigen thermoplastischen Wellrohres mit einer Rohrmuffe
EP1239999B1 (de) Verfahren und vorrichtung zum mehrstufigen umformen eines rohres
ITRA20060006A1 (it) Sistema di bicchieratura della estremita' di un tubo in materia plastica di tipo poliolefine, con inserimento all'interno di un elemento antiaderente sfilabile.
JPS63280614A (ja) ブロ−成形方法及びその装置