DE4017153A1 - Steam-sterilisable container for medical use - consists of EVA copolymer with 5-30 per cent vinyl] acetate, made heat-resistant by treatment with very strong ionising radiation - Google Patents

Steam-sterilisable container for medical use - consists of EVA copolymer with 5-30 per cent vinyl] acetate, made heat-resistant by treatment with very strong ionising radiation

Info

Publication number
DE4017153A1
DE4017153A1 DE4017153A DE4017153A DE4017153A1 DE 4017153 A1 DE4017153 A1 DE 4017153A1 DE 4017153 A DE4017153 A DE 4017153A DE 4017153 A DE4017153 A DE 4017153A DE 4017153 A1 DE4017153 A1 DE 4017153A1
Authority
DE
Germany
Prior art keywords
medical use
container
resistant
steam
treatment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
DE4017153A
Other languages
German (de)
Inventor
Giovanni Vedrani
Luciano Negrini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Enichem Anic SpA
Original Assignee
Enichem Anic SpA
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 Enichem Anic SpA filed Critical Enichem Anic SpA
Publication of DE4017153A1 publication Critical patent/DE4017153A1/en
Ceased legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61JCONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/05Containers specially adapted for medical or pharmaceutical purposes for collecting, storing or administering blood, plasma or medical fluids ; Infusion or perfusion containers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00Processes of treating or compounding macromolecular substances
    • C08J3/28Treatment by wave energy or particle radiation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04Homopolymers or copolymers of ethene
    • C08J2323/08Copolymers of ethene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00Applications
    • C08L2203/02Applications for biomedical use
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04Homopolymers or copolymers of ethene
    • C08L23/08Copolymers of ethene
    • C08L23/0846Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C08L23/0853Vinylacetate

Abstract

Container for medical use (I) is made of an EVA copolymer (II) and is heat resistant at temps. up to 160 deg. C. Pref. (I) is made heat-resistant by treatment with very strong ionising radiation, esp. alpha-, beta-, gamma- or X-rays, pref. beta radiation, at an intensity of 30-250 (pref. 60) kGy; (II) contains 5-30 (pref. 14) % copolymerised vinyl acetate (VA). USE/ADVANTAGE - Compared with prior-art PVC containers, (I) has better thermal, mechanical and chemical properties, can be steam-sterilised in an autoclave at up to 160 deg. C, and does not suffer from the disadvantages of plasticiser migration and disposal problems.

Description

Die Erfindung betrifft Behälter für ärztlichen Gebrauch, die aus einem Äthylen-Vinylacetat-Copolymer bestehen, das 5 bis 30% gebundenen Vinylacetats enthält, und durch eine Behandlung mit Ionisierstrahlung mit einer Stärke von 30 kGy oder mehr hitzebeständig gemacht werden. Die erfindungsge­ mäßen Behälter besitzen dadurch bessere thermische, mecha­ nische und chemische Eigenschaften und können im Autoklav mit Dampf sterilisiert werden.The invention relates to containers for medical use, which consist of an ethylene-vinyl acetate copolymer, the Contains 5 to 30% bound vinyl acetate, and by a Treatment with ionizing radiation with a strength of 30 kGy or be made more heat resistant. The fiction This means that moderate containers have better thermal, mecha niche and chemical properties and can in the autoclave be sterilized with steam.

Die Anwendung von PVC zur Fertigung von Behältern für den ärztlichen Gebrauch ist allgemein bekannt: diese Behälter werden gefüllt und anschließend bei Temperaturen um 120°C im Autoklav sterilisiert.The use of PVC for the manufacture of containers for the Medical use is well known: these containers are filled and then at temperatures around 120 ° C sterilized in an autoclave.

Das PVC ist ein Material, das Gesundheitsschädlichkeitspro­ bleme, die im wesentlichen mit der Wanderung des Weichmachers (insbesondere DOP) in der ärztlichen Flüssigkeit zusammenhän­ gen und nicht minder wichtige Umweltschutzprobleme bei der Zerstörung des Polymers nach der Anwendung aufweist.PVC is a material that is harmful to health bleme, essentially with the migration of the plasticizer (especially DOP) in the medical fluid and no less important environmental protection problems in the destruction of the polymer after use.

Ebenfalls bekannt ist die Anwendung des Äthylen-Vinylacetat- Copolymers für Nährungsmittelbehälter, da der Ein­ satz dieses die dem PVC eigenen Schädlichkeits- und Umwelt­ schutzprobleme nicht aufweisenden Materials von der Offiziel­ len Pharmazeutik zugelassen ist.The use of ethylene vinyl acetate is also known. Copolymers for food containers, because the one This sets the PVC's harmfulness and environment protection problems of non-material from the official len pharmaceutical is approved.

Da auch in diesem Fall die Sterilisation erfoderlich ist, muß dieselbe mit Äthylenoxid oder mit γ-Strahlen niedriger Stärke erfolgen, weil das zwar wirtschaftlichere und einfa­ chere Verfahren der Sterilisation mit Dampf im Autoklav wegen der sehr hohen Temperatur zum Verlust der Maßbestän­ digkeit des Äthylen-Vinylacetats führt. Um diesen Struktur­ zerfall des Polymers zu vermeiden und daher die Sterilisation mit Dampf von bereits mit der ärztlichen Flüssigkeit gefüll­ ten Behältern auf Äthylen-Vinylacetat-Basis vornehmen zu können, hat die Anmelderin festgestellt, daß sich durch Kreuzbindung der Behälter durch Ionisierstrahlung ein Erzeug­ nis herstellen läßt, das hitzebeständig ist und insbesonde­ re unter einem Dampfstrom im Autoklav sterilisiert werden kann, ohne seine Maßbeständigkeit zu verlieren.Since sterilization is also required in this case, it must be carried out with ethylene oxide or with low-strength γ- rays, because the more economical and simpler method of steam sterilization in an autoclave due to the very high temperature leads to the loss of the dimensional stability of the ethylene Vinyl acetate leads. In order to avoid this breakdown of the polymer and therefore to be able to carry out the steam sterilization of containers already filled with the medical liquid on the basis of ethylene-vinyl acetate, the applicant has determined that a product is produced by cross-binding the containers by ionizing radiation can, which is heat-resistant and in particular re can be sterilized under a steam flow in the autoclave without losing its dimensional stability.

Der Erfindung liegt daher die Aufgabe zugrunde, Behälter für ärztlichen Gebrauch auf Basis eines Äthylen-Vinylacetat- Copolymers, das 5 bis 30% gebundenen Vinylacetats enthält, zu schaffen, die durch eine Behandlung mit Ionisierstrahlun­ gen mit einer Stärke von 30 kGy oder mehr hitzebeständig ge­ macht werden. Die so hergestellten Behälter besitzen daher bessere thermische, mechanische und chemische Eigenschaften.The invention is therefore based on the object of containers medical use based on an ethylene vinyl acetate Copolymer containing 5 to 30% bound vinyl acetate to be created by treatment with ionizing radiation heat resistant with a strength of 30 kGy or more be made. The containers produced in this way therefore have better thermal, mechanical and chemical properties.

Insbesondere erfolgt die Bestrahlung mit α-Strahlen, β-Strah­ len, γ-Strahlen und x-Strahlen, vorzugsweise mit β- und γ- Strahlen mit einer Stärke von mindestens 30 bis zu höchstens 250 kGy.In particular, the irradiation with α- rays, β -rays, γ- rays and x-rays, preferably with β - and γ - rays with a strength of at least 30 up to a maximum of 250 kGy.

Die erfindungsgemäßen Behälter sind gegen die hohen Tempera­ turen der Dampfsterilisation im Autoklav bis zu 160°C be­ ständig.The containers according to the invention are against the high temperature steam sterilization in an autoclave up to 160 ° C constantly.

Nachstehende Versuchsbeispiele dienen zur Erläuterung der Erfindung, ohne dieselbe jedoch irgendwie zu beschränken.The following test examples serve to explain the Invention without, however, limiting it in any way.

BEISPIEL 1EXAMPLE 1

Ein Behälter mit 1 Liter Fassungsvermögen und 300-350 µm Wand­ stärke wurde durch Extrusion von Riblene-Granulatkörnern aus D-Äthylen-Vinylazetat FV2034 (Vinylacetat = etwa 14%) und anschließenden Pressen des aus dem Extruder kommenden Schlauches gefertigt.A container with 1 liter capacity and 300-350 µm wall  Starch was made by extruding Riblene granules D-ethylene vinyl acetate FV2034 (vinyl acetate = about 14%) and subsequent pressing of the coming out of the extruder Hose manufactured.

Dann wurde der Behälter mit ärztlicher Flüssigkeit gefüllt und 60 Minuten lang bei 121°C im Autoklav sterilisiert.Then the container was filled with medical fluid and sterilized in an autoclave at 121 ° C for 60 minutes.

Das so behandelte Material brach mit Totalverlust der Flüssigkeit zusammen.The material treated in this way broke with total loss of Liquid together.

BEISPIEL 2EXAMPLE 2

Der nach Beispiel 1 gefertigte Behälter wurde mit β-Strahlen mit einer Stärke von 60 kGy bestrahlt, anschließend mit der ärztlichen Flüssigkeit gefüllt und 60 Minuten lang bei 121°C im Autoklav sterilisiert. Danach war der Behälter in Form und Abmessungen vollständig unversehrt, und zwar ohne Verlust der Flüssigkeit.The container manufactured according to Example 1 was irradiated with β- rays with a strength of 60 kGy, then filled with the medical liquid and sterilized in an autoclave at 121 ° C. for 60 minutes. Afterwards, the shape and dimensions of the container were completely intact, without loss of liquid.

Claims (8)

1. Behälter für ärztlichen Gebrauch, aus einem Äthylen-Vinyl­ acetat-Copolymer bestehend und bis zu 160°C hitzebeständig.1. Container for medical use, made of an ethylene vinyl Acetate copolymer consisting and heat resistant up to 160 ° C. 2. Behälter für ärztlichen Gebrauch, aus einem Äthylen-Vinyl­ acetat-Copolymer bestehend, nach Anspruch 1, die durch eine Behandlung mit sehr starker Ionisierstrahlung hitze­ beständig gemacht werden.2. Container for medical use, made of an ethylene vinyl Acetate copolymer according to claim 1, which by a treatment with very strong ionizing radiation be made permanent. 3. Behälter für ärztlichen Gebrauch nach Anspruch 1 und 2, bei denen das Copolymer 5 bis 30% gebundenen Vinylacetats ent­ hält. 3. Container for medical use according to claim 1 and 2, at which ent the copolymer 5 to 30% bound vinyl acetate holds.   4. Behälter für ärztlichen Gebrauch nach Anspruch 3, bei denen der Anteil des gebundenen Vinylacetats vorzugsweise 14% beträgt.4. Container for medical use according to claim 3, at which the proportion of bound vinyl acetate preferably Is 14%. 5. Behälter für ärztlichen Gebrauch nach Anspruch 1 und 2, die mit Ionisierstrahlungen, insbesondere mit α-Strahlen, β-Strahlen, γ-Strahlen, x-Strahlen, behandelt werden.5. Container for medical use according to claim 1 and 2, which are treated with ionizing radiation, in particular with α- rays, β- rays, γ- rays, x-rays. 6. Behälter für ärztlichen Gebrauch nach Anspruch 5, die vorzugsweise mit β-Strahlen behandelt werden.6. Container for medical use according to claim 5, which are preferably treated with β- rays. 7. Behälter für ärztlichen Gebrauch nach Anspruch 2, die mit Ionisierstrahlungen mit einer Stärke zwischen 30 und 250 kGy behandelt werden.7. A container for medical use according to claim 2, the with ionizing radiation with a strength between 30 and 250 kGy are treated. 8. Behälter für ärztlichen Gebrauch nach Anspruch 7, die mit Ionisierstrahlungen mit einer Stärke von vorzugsweise 60 kGy behandelt werden.8. A container for medical use according to claim 7, the with ionizing radiation with a strength of preferably 60 kGy can be treated.
DE4017153A 1989-05-26 1990-05-28 Steam-sterilisable container for medical use - consists of EVA copolymer with 5-30 per cent vinyl] acetate, made heat-resistant by treatment with very strong ionising radiation Ceased DE4017153A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8920652A IT1230087B (en) 1989-05-26 1989-05-26 CONTAINERS FOR MEDICAL USE, CONSISTING OF ETHYLENE VINYL ACETATE COPOLYMERS, RESISTANT TO HIGH TEMPERATURES.

Publications (1)

Publication Number Publication Date
DE4017153A1 true DE4017153A1 (en) 1990-11-29

Family

ID=11170079

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4017153A Ceased DE4017153A1 (en) 1989-05-26 1990-05-28 Steam-sterilisable container for medical use - consists of EVA copolymer with 5-30 per cent vinyl] acetate, made heat-resistant by treatment with very strong ionising radiation

Country Status (3)

Country Link
DE (1) DE4017153A1 (en)
FR (1) FR2647340A1 (en)
IT (1) IT1230087B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5683768A (en) * 1994-12-21 1997-11-04 Baxter International Inc. Plastic formulations for platelet storage containers and the like
WO1999010106A1 (en) * 1997-08-26 1999-03-04 Ing. Erich Pfeiffer Gmbh A device for discharging media
AT16945U1 (en) * 2016-01-29 2020-12-15 Entegris Inc Bag structure sterilizable by gamma radiation

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3200264A1 (en) * 1982-01-07 1983-07-14 Dr. Eduard Fresenius, Chemisch-pharmazeutische Industrie KG, 6380 Bad Homburg Physiologically acceptable bag which can be sterilised above 110 DEG C

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1111724A (en) * 1954-09-24 1956-03-05 Centre Nat Rech Scient Improvements to processes for crosslinking or vulcanizing plastics or rubbers by ionizing radiation
CH601394A5 (en) * 1976-06-14 1978-07-14 Ims Worbla Ag Crosslinked polymer articles e.g. ski running-surface coatings
DE2911777A1 (en) * 1979-03-26 1980-10-09 Basf Ag Crosslinking ethylene! polymer profiles by electron irradiation - after heating and pref. quenching before working
US4465487A (en) * 1981-06-16 1984-08-14 Terumo Kabushiki Kaisha Container for medical use

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3200264A1 (en) * 1982-01-07 1983-07-14 Dr. Eduard Fresenius, Chemisch-pharmazeutische Industrie KG, 6380 Bad Homburg Physiologically acceptable bag which can be sterilised above 110 DEG C

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5683768A (en) * 1994-12-21 1997-11-04 Baxter International Inc. Plastic formulations for platelet storage containers and the like
WO1999010106A1 (en) * 1997-08-26 1999-03-04 Ing. Erich Pfeiffer Gmbh A device for discharging media
AT16945U1 (en) * 2016-01-29 2020-12-15 Entegris Inc Bag structure sterilizable by gamma radiation
AT16945U8 (en) * 2016-01-29 2021-04-15 Entegris Inc Bag structure sterilizable by gamma radiation

Also Published As

Publication number Publication date
FR2647340A1 (en) 1990-11-30
IT8920652A0 (en) 1989-05-26
IT1230087B (en) 1991-10-05

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