EP0861790A1 - Sachet d'emballage stérilisable par un procédé utilisant un gaz - Google Patents

Sachet d'emballage stérilisable par un procédé utilisant un gaz Download PDF

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Publication number
EP0861790A1
EP0861790A1 EP98101703A EP98101703A EP0861790A1 EP 0861790 A1 EP0861790 A1 EP 0861790A1 EP 98101703 A EP98101703 A EP 98101703A EP 98101703 A EP98101703 A EP 98101703A EP 0861790 A1 EP0861790 A1 EP 0861790A1
Authority
EP
European Patent Office
Prior art keywords
package
strip
heat
medical
pouch package
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.)
Withdrawn
Application number
EP98101703A
Other languages
German (de)
English (en)
Inventor
Sergio Visona
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.)
BURGOPACK STAMPA TRASFORMAZIONE IMBALLAGGI SpA
Original Assignee
BURGOPACK STAMPA TRASFORMAZIONE IMBALLAGGI 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 BURGOPACK STAMPA TRASFORMAZIONE IMBALLAGGI SpA filed Critical BURGOPACK STAMPA TRASFORMAZIONE IMBALLAGGI SpA
Publication of EP0861790A1 publication Critical patent/EP0861790A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/01—Ventilation or drainage of bags

Definitions

  • the present invention relates to an improved pouch package which can be sterilized with a sterilizing-gas process.
  • Pouch packages made of heat-seal able plastics are currently provided in the packaging of disposable medical products, such as for example medical devices and the like.
  • the plastic material used is generally constituted by a polyethylene film.
  • the package is placed inside a chamber in which the sterilizing gas, such as for example ethylene oxide, is introduced; said gas is meant to sterilize both the inside of the package and the device contained therein.
  • the sterilizing gas such as for example ethylene oxide
  • the sterilizing gas must be extracted after a preset period at the end of its sterilizing action.
  • packages are widely used which are obtained from a plastic sheet which is folded and heat-sealed longitudinally with a strip of medical-grade paper.
  • This strip has a structure which allows it to be easily crossed by the sterilizing gas and to form a barrier against the passage of germs and bacteria.
  • the sterilizing gas is then introduced in the package thus produced, in a chamber provided specifically for this function; said gas disinfects both the product and the inside of the package, i.e., the environment in which said product must be preserved.
  • the gas which is extracted by vacuum, can exit through the strip of medical-grade paper.
  • the medical-grade paper thermally bonds with the polyethylene sheet with difficulty.
  • the thermal bonding lacquer in fact does not allow a high production rate and has a limited strength while hot, consequently making it very likely that the bonded regions will open if they are handled.
  • the thermal bonding lacquer does not ensure intact bonding and therefore the danger arises that the poorly bonded portions may connect the inside of the package to the outside, making the gas sterilization process useless.
  • the thermal bonding lacquer is based on solvents including toluene, which are highly toxic substances.
  • Medical-grade paper is often subject to tearing, i.e., it does not have mechanical characteristics sufficient to allow it to withstand traction.
  • the aim of the present invention is to provide an improved pouch package which eliminates or significantly reduces the drawbacks mentioned above of conventional types.
  • a particular object of the present invention is to provide an improved sterilizable pouch package which can be obtained by using conventional equipment and in compliance with the production level allowed by said equipment.
  • Another important object of the present invention is to provide an improved sterilizable pouch package whose mechanical characteristics are suitable to make it effectively withstand the stresses that would lead to unintended breakages.
  • Another important object of the present invention is to provide an improved sterilizable pouch package which can be obtained at an extremely competitive cost.
  • Another object of the present invention is to provide an improved sterilizable pouch package which does not use toxic and noxious substances.
  • a package of the sterilizable pouch type made of a heat-sealable plastic film, characterized in that at least one portion thereof is permeable to gases and impermeable to germs, bacteria or the like, said portion being a multilayer element obtained by means of at least one medical-grade paper and a backing film.
  • an improved sterilizable pouch package is generally designated by the reference numeral 10 and is constituted by a film 11 made of heat-sealable plastics, which constitutes substantially a pouch-like container 12 inside which a medical device, such as for example a syringe, surgical gloves or other items, are to be packaged for sterile preservation.
  • the film 11 is folded, according to a per se known method, so as to assume, in transverse cross-section, a U-like shape in which both longitudinal flaps 13 and 14 are folded so as to cooperate with a strip 15, so as to form a longitudinal band 16 along the entire package 10.
  • the strip 15 comprises a tape 17 made of medical-grade paper which is coupled, at the sides, to a corresponding band 18 that has the same dimensions, is made of plastics, and has uniformly distributed fine perforations 19.
  • Coupling between the tape 17 made of medical paper and the band 18 made of plastics occurs by means of lateral thermal bonds 20 along the entire extension of the strip 15, which is therefore tubular.
  • the strip 15 is obtained by means of a continuous process, using per se known heat-sealing machines, equipment and methods, and is provided in roll form.
  • the film 11 is commercially available wound in rolls which, once installed in equipment of a conventional type, are unrolled, the film 11 being folded according to an automated procedure for continuously manufacturing flexible packages.
  • the package 10 according to the invention has two longitudinal flaps 13 and 14 of the film 11 which are heat-sealed at the plastic band 18, provided with the small perforations 19, of the strip 15 so as to form corresponding longitudinal heat-sealed regions 20.
  • the mutually opposite ends 21 and 22 of the package 10 are closed by means of transverse heat-sealed regions in a per se known manner.
  • the medical-grade paper 17 in particular, is permeable to gases and impermeable to germs, bacteria and the like.
  • the strip 15 applied longitudinally to the package 10 allows the sterilizing gas to enter and exit through the small perforations 19 of the band 18 and through the medical-grade paper 17, both by spontaneous depressurization and by compression.
  • the strip 15 obtained from the combination of the tape 17 of medical-grade paper coupled to the band 18 made of plastics has mechanical characteristics which make it considerably resistant to tearing and to accidental breakage.
  • a substantial characteristic is that the packages 10, according to the invention, can be manufactured continuously, since the strip 15 can be obtained separately and is thus ready to be heat-sealed, according to a per se known method, to each one of said packages 10.
  • an important advantage is achieved with the present invention in that an improved sterilizable pouch package is provided having mechanical characteristics such as to ensure that it has an adequate resistance to accidental breakage, especially during the production process.
  • Another advantage is achieved with the present invention as to the fact that a flexible sterilizable pouch package is provided which can be obtained in practice at a very low and competitive cost with respect to currently commercially available packages.
  • Another important advantage is achieved with the present invention as to the fact that a sterilizable pouch package is provided which can be provided in practice by using conventional available equipment and systems, while ensuring a satisfactory production yield.
  • the materials employed, as well as the dimensions, may be any according to requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
EP98101703A 1997-02-04 1998-02-02 Sachet d'emballage stérilisable par un procédé utilisant un gaz Withdrawn EP0861790A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT97PD000017A IT1291406B1 (it) 1997-02-04 1997-02-04 Confezione perfezionata a sacco sterilizzabile con procedimento a gas sterilizzante
ITPD970017 1997-02-04

Publications (1)

Publication Number Publication Date
EP0861790A1 true EP0861790A1 (fr) 1998-09-02

Family

ID=11391648

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98101703A Withdrawn EP0861790A1 (fr) 1997-02-04 1998-02-02 Sachet d'emballage stérilisable par un procédé utilisant un gaz

Country Status (2)

Country Link
EP (1) EP0861790A1 (fr)
IT (1) IT1291406B1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2997224A (en) * 1958-11-05 1961-08-22 Forrest B Stannard Packaging container
GB1488326A (en) * 1975-01-17 1977-10-12 Schuster S Bag for storing materials in sterile condition
US4884694A (en) * 1985-08-27 1989-12-05 Sengewald Karl H Gas-sterilizable package, cover of and arrangement for producing the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2997224A (en) * 1958-11-05 1961-08-22 Forrest B Stannard Packaging container
GB1488326A (en) * 1975-01-17 1977-10-12 Schuster S Bag for storing materials in sterile condition
US4884694A (en) * 1985-08-27 1989-12-05 Sengewald Karl H Gas-sterilizable package, cover of and arrangement for producing the same
US4884694B1 (fr) * 1985-08-27 1991-07-09 Sengewald Karl H

Also Published As

Publication number Publication date
IT1291406B1 (it) 1999-01-11
ITPD970017A1 (it) 1998-08-04

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