WO2004006827A1 - Infusion container an method for producing the same - Google Patents

Infusion container an method for producing the same

Info

Publication number
WO2004006827A1
WO2004006827A1 PCT/EP2003/007581 EP0307581W WO2004006827A1 WO 2004006827 A1 WO2004006827 A1 WO 2004006827A1 EP 0307581 W EP0307581 W EP 0307581W WO 2004006827 A1 WO2004006827 A1 WO 2004006827A1
Authority
WO
WIPO (PCT)
Prior art keywords
accumulation
neck portion
opening
infusion container
groove
Prior art date
Application number
PCT/EP2003/007581
Other languages
French (fr)
Inventor
Niels Pinholt
Original Assignee
Polimoon Langeskov A/S
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 Polimoon Langeskov A/S filed Critical Polimoon Langeskov A/S
Priority to AU2003257458A priority Critical patent/AU2003257458A1/en
Publication of WO2004006827A1 publication Critical patent/WO2004006827A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS 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
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/05—Containers specially adapted for medical or pharmaceutical purposes for collecting, storing or administering blood, plasma or medical fluids ; Infusion or perfusion containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04—Extrusion blow-moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/72—Deflashing outside the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages

Definitions

  • the present invention relates to a method for blow moulding an infusion container which is formed with a body portion and a neck portion with an opening facing away from the body portion.
  • the invention also relates to an infusion container comprising a body portion and a neck portion with an opening facing away from the body portion, wherein the neck portion in the vicinity of the opening has a circumferential accumulation of material which provides contact surfaces for means for sealing the container.
  • a method for providing the neck portion of a contai- ner with contact surfaces for means for sealing the container is known from EP-B-641 718.
  • a separate annular element is formed and arranged around the neck portion of the container.
  • the annular element thus provides contact surfaces for means for sealing the container.
  • a drawback of this method is that the forming of the annular element and the placing thereof around the neck portion of the container require additional steps in the production of the container.
  • the object of the present invention is to provide a solution to the above-mentioned problems .
  • a specific object of the invention is to provide a method for blow moulding an infusion container, in which the entire container can be produced in a single step.
  • a further object is to provide an infusion container which can easily be efficiently sealed and which can be produced effectively and at a low cost .
  • the neck portion of the container is formed in one piece with the body portion, and the neck portion is formed with a circumferential accumulation of material in the vicinity of the opening. This reduces the number of steps necessary in the production of the infusion container.
  • the accumulation of material provides stability to the neck portion and may be used for providing contact surfaces for means for sealing the container.
  • the accumulation of material is preferably formed as a circumferential ring portion around the neck portion. This makes it easy to form the accumulation of material.
  • indentations are formed in the accumulation of material. The indentations reduce the amount of material in the accumulation, thus reducing the time necessary for cooling of the blow moulded container. The indentations may also serve as reinforcements for the accumulation of material.
  • a void which is open towards the inside of the neck portion may be formed, tl ⁇ us_xeducing the amount of material which needs cooling .
  • a circum erential groove may be formed in the accumulation of material .
  • Stiffening ribs can be arranged perpendicular to the groove .
  • the groove results in another way of reducing the amount of material in the accumulation and the stiffening ribs provide the necessary stability.
  • the accumulation of material is formed at a distance from the opening of the neck portion and the groove is placed such that more material remains on the opening side of the groove than on the body portion side of the groove. In this way, improved stability of the accumulation of material is achieved. A stopper which is placed in the neck portion will not immediately rest on the entire opening side surface of the accumulation of material, and the displacement of the groove makes the accumulation more stable against pressure from such a stopper. Thus, the risk of the stopper deforming the accumulation of material and thereby impairing the sealing effect is reduced.
  • the infusion container is preferably blow moulded from an extruded plastic tube. This is a very efficient way of blow moulding an infusion container.
  • the infusion container of the invention has a neck portion which is formed in one piece with the body portion. Thus, the infusion container may be produced in a most efficient way.
  • the accumulation of material forms a contact surface for a stopper for sealing the container on a side facing towards the opening, and a contact surface for a cap for securing the sealing of the container on a side facing away from the opening.
  • the neck portion is preferably essentially cylindrical and the accumulation of material comprises a circumferential ring portion around the neck portion. This makes the production of the infusion container simple.
  • Indentations may be formed in the accumulation, reducing the amount of material which needs cooling in the production process and providing reinforcement to the accumulation of material .
  • Preferably four indentations are arranged equidistantly along the circumference of the accumulation of material. This simplifies the production of the infusion container, while still providing the desired reinforcing effect and reduction of the amount of material .
  • a void which is open towards the inside of the neck portion is arranged in the accumulation of material .
  • the accumulation of material may comprise a circumferential groove having stiffening ribs which are arranged perpendicularly to the groove.
  • the ring portion may be arranged at a distance from the opening end of the neck portion and a circumferential groove may be arranged in the ring portion such that more material remains on the opening side of the groove than on the body portion side of the groove. This improves the stability of the accumulation of material, while still allowing short cooling times.
  • Fig. 1 - is a front view of an embodiment of an infusion container according to the invention.
  • Fig. 2 is a schematic sectional view of an extruded- plastic tube in a mould for blow moulding an infusion container.
  • Fig. 3 is a front view of a blow moulded infusion container before excess material is cut away.
  • Fig. 4 shows how excess material is cut away.
  • Fig. 5 shows the neck portion of a container according to one embodiment of the infusion container of the invention.
  • Fig. 6 shows a section along the line VI-VI in Fig. 5.
  • Fig. 7 shows the neck portion of a container according to another embodiment of the infusion container of the invention.
  • Fig. 8 shows a section along the line VIII-VIII in Fig. 7.
  • Fig. 9 shows the neck portion of a container according to yet another embodiment of the infusion container of the invention.
  • Fig. 10 shows a section along the line X-X in Fig. 9.
  • Fig. 11 shows the neck portion of a container according to still another embodiment of the infusion container of the invention.
  • Fig. 12 shows a section along line XII-XII in Fig. 11.
  • the infusion container 1 of Fig. 1 has a body portion 2 and a neck portion 3.
  • the neck portion 3 has an opening 4 and a circumferential accumulation of material 5 at the opening 4.
  • the accumulation of material 5 has an opening side contact surface 6 and a body portion side contact surface 7
  • the infusion container 1 is formed by blow moulding an extruded plastic tube 8 in a mould 9 which is shaped to give the finished container the desired shape .
  • the neck portion 3 with its circumferential accumulation of material 5 is blow moulded in one piece with the body portion 2.
  • the plastic tube 8 may be made from e.g. a polyolefin such as polypropylene or polyethylene.
  • the infusion container 1 is allowed to cool and is removed from the mould 9.
  • the infusion container 1 has some excess material 12 at the ends.
  • Fig. 4 shows the trimming away of this excess material 12.
  • the material accumulation surrounding the neck portion is in the form of a circumferential ring 5 which provides contact surfaces 6, 7 for means 13, 14 for sealing the container 1.
  • the material accumulation 5 provides both horizontal and vertical contact surfaces 6, 7.
  • the means for sealing the container 1 are, as shown in Fig.
  • a rubber stopper 13 and an aluminium cap 14 The stopper 13 rests against the contact surface 6 on the side of the material accumulation 5 which faces towards the opening 4 and seals the opening 4.
  • the cap 14 is placed on top of the stopper 13 and is crimped against the contact surface 7 on the side of the material accumulation facing away from the opening, towards the body portion of the container.
  • the rubber stopper 13 securely seals the neck portion 3 and the aluminium cap 14 protects the rubber stopper 13 against contamination and damage .
  • a void 15 is formed.in -the accumulation of material 5.
  • the void 15 is open towards the inside of the neck portion 3.
  • the void reduces the amount of material in the accumulation 5, whereby the time needed for cooling the blow moulded infusion container 1 is shortened. This means that the production process may be speeded up.
  • indentations 16 are formed in the material accumulation 5.
  • the indentations 16 have a stiffening effect on the accumulation 5 and may be made so deep that material protrudes on the inside of the neck portion 3. This reduces the risk of the stopper 13 deforming the accumulation 5 when inserted into the neck portion 3, whereby a good sealing effect is ensured.
  • a circumferential groove 17 is formed in the outside of the accumulation 5.
  • Stiffening ribs 18 are formed perpendicular to the groove.
  • the groove 17 reduces the amount of material in the accumulation 5, whereby, as mentioned before, the required cooling time is reduced.
  • the stiffening ribs 18 protect the accumulation 5 against deformation by the stopper 13.
  • the accumu- lation 5 is formed a small distance "d" away from the opening 4 and the groove 17 is not placed centrally in the accumulation 5, but slightly further away from the opening 4 , such that more material remains on the opening side of the groove 17 than on the body portion side of the groove 17.
  • the stopper 13 does not rest directly against the entire opening side contact surface 6, whereby the risk of deformation of the accumulation is reduced.
  • the non-central positioning of the groove 17 further reduces the risk of deformation of the accumulation 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Hematology (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

In a method for blow moulding an infusion container (1) the infusion container (1) is formed with a body portion (2) and a neck portion (3) with an opening (4) facing away from the body portion (3). The neck portion (3) is formed in one piece with the body portion (2). The neck portion (3) is formed with a circumferential accumulation of material (5) in the vicinity of the opening (4) of the neck portion (3). An infusion contain­er is also described comprising a body portion (2) and a neck portion (3) with an opening (4) facing away from the body portion (2). In the vicinity of the opening (4), the neck portion (3) has a circumferential accumulation of 15 material (5) which provides contact surfaces (6, 7) for means for sealing the container (1). The neck portion (3) is formed in one piece with the body portion (2).

Description

INFUSION CONTAINER AND METHOD FOR PRODUCING THE SAME
Technical Field of the Invention
The present invention relates to a method for blow moulding an infusion container which is formed with a body portion and a neck portion with an opening facing away from the body portion. The invention also relates to an infusion container comprising a body portion and a neck portion with an opening facing away from the body portion, wherein the neck portion in the vicinity of the opening has a circumferential accumulation of material which provides contact surfaces for means for sealing the container.
Background Art
Methods of the above-mentioned kind are known, e.g. from JP-7-171-195, which describes a method for blow moulding an infusion container in one piece. However, the neck portion of the finished container does not provide contact surfaces for means for sealing the container. Thus, a special plug has to be formed separately and be placed in the neck portion in connection with the blow moulding of the container. The special plug required makes this method for producing an infusion container costly.
A method for providing the neck portion of a contai- ner with contact surfaces for means for sealing the container is known from EP-B-641 718. In this method a separate annular element is formed and arranged around the neck portion of the container. The annular element thus provides contact surfaces for means for sealing the container. A drawback of this method is that the forming of the annular element and the placing thereof around the neck portion of the container require additional steps in the production of the container. Summary of the Invention
The object of the present invention is to provide a solution to the above-mentioned problems .
A specific object of the invention is to provide a method for blow moulding an infusion container, in which the entire container can be produced in a single step.
A further object is to provide an infusion container which can easily be efficiently sealed and which can be produced effectively and at a low cost . These objects are achieved by a method of the type mentioned by way of introduction having the features of claim 1, embodiments thereof being defined in dependent claims 2-7.
The above-mentioned objects are also achieved by an infusion container as defined in claim 8. Embodiments of the infusion container are defined in dependent claims 9-15.
In the method of the invention, the neck portion of the container is formed in one piece with the body portion, and the neck portion is formed with a circumferential accumulation of material in the vicinity of the opening. This reduces the number of steps necessary in the production of the infusion container. The accumulation of material provides stability to the neck portion and may be used for providing contact surfaces for means for sealing the container.
The accumulation of material is preferably formed as a circumferential ring portion around the neck portion. This makes it easy to form the accumulation of material. In one embodiment of the invention, indentations are formed in the accumulation of material. The indentations reduce the amount of material in the accumulation, thus reducing the time necessary for cooling of the blow moulded container. The indentations may also serve as reinforcements for the accumulation of material.
In the accumulation of material, a void which is open towards the inside of the neck portion may be formed, tlιus_xeducing the amount of material which needs cooling .
A circum erential groove may be formed in the accumulation of material . Stiffening ribs can be arranged perpendicular to the groove . The groove results in another way of reducing the amount of material in the accumulation and the stiffening ribs provide the necessary stability.
In one embodiment, the accumulation of material is formed at a distance from the opening of the neck portion and the groove is placed such that more material remains on the opening side of the groove than on the body portion side of the groove. In this way, improved stability of the accumulation of material is achieved. A stopper which is placed in the neck portion will not immediately rest on the entire opening side surface of the accumulation of material, and the displacement of the groove makes the accumulation more stable against pressure from such a stopper. Thus, the risk of the stopper deforming the accumulation of material and thereby impairing the sealing effect is reduced.
The infusion container is preferably blow moulded from an extruded plastic tube. This is a very efficient way of blow moulding an infusion container. The infusion container of the invention has a neck portion which is formed in one piece with the body portion. Thus, the infusion container may be produced in a most efficient way.
In one embodiment of the infusion container of the invention, the accumulation of material forms a contact surface for a stopper for sealing the container on a side facing towards the opening, and a contact surface for a cap for securing the sealing of the container on a side facing away from the opening. As a result, the container can be efficiently sealed without further preparation of the container. The neck portion is preferably essentially cylindrical and the accumulation of material comprises a circumferential ring portion around the neck portion. This makes the production of the infusion container simple.
Indentations may be formed in the accumulation, reducing the amount of material which needs cooling in the production process and providing reinforcement to the accumulation of material . Preferably four indentations are arranged equidistantly along the circumference of the accumulation of material. This simplifies the production of the infusion container, while still providing the desired reinforcing effect and reduction of the amount of material .
In one embodiment of the infusion container of the invention, a void which is open towards the inside of the neck portion is arranged in the accumulation of material . This reduces the amount of material around the neck portion and thus the required cooling time in production. The accumulation of material may comprise a circumferential groove having stiffening ribs which are arranged perpendicularly to the groove. Thus, the cooling time can be reduced while at the same time the accumu- lation of material is sufficiently stable.
The ring portion may be arranged at a distance from the opening end of the neck portion and a circumferential groove may be arranged in the ring portion such that more material remains on the opening side of the groove than on the body portion side of the groove. This improves the stability of the accumulation of material, while still allowing short cooling times. Brief Description of the Drawings
The invention will be described in further detail below with reference to the accompanying drawings, which show non-limiting examples of embodiments. Fig. 1 -is a front view of an embodiment of an infusion container according to the invention.
Fig. 2 is a schematic sectional view of an extruded- plastic tube in a mould for blow moulding an infusion container.
Fig. 3 is a front view of a blow moulded infusion container before excess material is cut away.
Fig. 4 shows how excess material is cut away.
Fig. 5 shows the neck portion of a container according to one embodiment of the infusion container of the invention.
Fig. 6 shows a section along the line VI-VI in Fig. 5.
Fig. 7 shows the neck portion of a container according to another embodiment of the infusion container of the invention.
Fig. 8 shows a section along the line VIII-VIII in Fig. 7.
Fig. 9 shows the neck portion of a container according to yet another embodiment of the infusion container of the invention.
Fig. 10 shows a section along the line X-X in Fig. 9. Fig. 11 shows the neck portion of a container according to still another embodiment of the infusion container of the invention. Fig. 12 shows a section along line XII-XII in Fig. 11.
Fig. 13 shows a section along a line XIII-XIII in Fig. 7. Fig. 14 shows, in partial section, a neck portion of an infusion container according to the invention sealed with a stopper and a cap. Description of Preferred Embodiments of the Invention
The infusion container 1 of Fig. 1 has a body portion 2 and a neck portion 3. The neck portion 3 has an opening 4 and a circumferential accumulation of material 5 at the opening 4. The accumulation of material 5 has an opening side contact surface 6 and a body portion side contact surface 7 As shown in Fig. 2 , the infusion container 1 is formed by blow moulding an extruded plastic tube 8 in a mould 9 which is shaped to give the finished container the desired shape . In contrast to pxior art methods of producing infusion containers, the neck portion 3 with its circumferential accumulation of material 5 is blow moulded in one piece with the body portion 2. The plastic tube 8 may be made from e.g. a polyolefin such as polypropylene or polyethylene. An air nozzle 10 is introduced into the free end 11 of the tube 8 and air is blown into the tube 8 through the nozzle 10. This makes the tube 8 expand and the blowing of air is continued until the tube 8 follows the shape of the inside of the mould 9. The blow moulded infusion container 1 is allowed to cool and is removed from the mould 9. As shown in Fig. 3, the infusion container 1 has some excess material 12 at the ends. Fig. 4 shows the trimming away of this excess material 12. Returning to Fig. 1, the material accumulation surrounding the neck portion is in the form of a circumferential ring 5 which provides contact surfaces 6, 7 for means 13, 14 for sealing the container 1. The material accumulation 5 provides both horizontal and vertical contact surfaces 6, 7. In the embodiments described, the means for sealing the container 1 are, as shown in Fig. 14, a rubber stopper 13 and an aluminium cap 14. The stopper 13 rests against the contact surface 6 on the side of the material accumulation 5 which faces towards the opening 4 and seals the opening 4. The cap 14 is placed on top of the stopper 13 and is crimped against the contact surface 7 on the side of the material accumulation facing away from the opening, towards the body portion of the container. The rubber stopper 13 securely seals the neck portion 3 and the aluminium cap 14 protects the rubber stopper 13 against contamination and damage . In the embodiment of Figs 5 and. 6, a void 15 is formed.in -the accumulation of material 5. The void 15 is open towards the inside of the neck portion 3. The void reduces the amount of material in the accumulation 5, whereby the time needed for cooling the blow moulded infusion container 1 is shortened. This means that the production process may be speeded up.
In a preferred embodiment as seen in Figs 7, 8 and 13, four equidistantly spaced indentations 16 are formed in the material accumulation 5. The indentations 16 have a stiffening effect on the accumulation 5 and may be made so deep that material protrudes on the inside of the neck portion 3. This reduces the risk of the stopper 13 deforming the accumulation 5 when inserted into the neck portion 3, whereby a good sealing effect is ensured.
In the embodiment of Figs 9 and 10, a circumferential groove 17 is formed in the outside of the accumulation 5. Stiffening ribs 18 are formed perpendicular to the groove. The groove 17 reduces the amount of material in the accumulation 5, whereby, as mentioned before, the required cooling time is reduced. The stiffening ribs 18 protect the accumulation 5 against deformation by the stopper 13.
In a variation of the latter embodiment, the accumu- lation 5 is formed a small distance "d" away from the opening 4 and the groove 17 is not placed centrally in the accumulation 5, but slightly further away from the opening 4 , such that more material remains on the opening side of the groove 17 than on the body portion side of the groove 17. In this variant, the stopper 13 does not rest directly against the entire opening side contact surface 6, whereby the risk of deformation of the accumulation is reduced. The non-central positioning of the groove 17 further reduces the risk of deformation of the accumulation 5.
The skilled person will realise that a number of modifications of the embodiments described herein are possible within the scope of the invention as defined in the appended claims .
For instance, a different number of indentations 16 in the accumulation 5 is possible. However, symmetric positioning of them makes production simpler.
Other means 13, 14 for sealing the infusion container 1 may also be used. The shape of the accumulation will then have to adapted such that suitable contact surfaces 6, 7 are provided. The position of the material accumulation 5 may in such case also be moved closer to or further away from the opening 4 to suit the current sealing means 13, 14.

Claims

1. A method for blow moulding an infusion container
(1) which is formed with a body portion (2) and a neck portion (3) with an opening (4) facing away from the body portion (2), c h a r a c t e r i s e d i n that the neck portion (3) is formed in one piece with the body portion
(2) and that the neck portion (3) is formed with a circumferential accumulation of material (5) in the vicinity of the opening (4) of the neck portion (3) .
2. A method according to claim 1 , wherein the accumulation of material is formed as a circumferential ring portion (5) around the neck portion (3) .
3. A method according to claim 1 or 2 , wherein indentations (16) are formed in the accumulation of material (5) .
4. A method according to any one of claims 1-3, wherein a void (15) which is open towards the inside of the neck portion (3) is formed in the accumulation of material (5) .
5. A method according to any one of claims 1-3, wherein a circumferential groove (17) is formed in the accumulation of material (5) with stiffening ribs (18) which are arranged perpendicularly to the groove (17) .
6. A method according to claim 5, wherein the accumulation of material (5) is formed at a distance from the opening (4) of the neck portion (3) , and wherein the groove (17) is placed so that more material remains on the opening side of the groove (17) than on the body portion side of the groove (17) .
7. A method according to any one of the preceding claims, wherein the infusion container (1) is blow moulded from an extruded plastic tube (8) .
8. An infusion container comprising a body portion (2) and a neck portion (3) with an opening (4) facing away from the body portion (2) , wherein the neck portion
(3) in the vicinity of the opening (4) has a circumferential accumulation of material (5) which provides contact surfaces (7, 8) for means (13, 14) for sealing the container (1), c ha r a c t e r i s e d i n that the neck portion (3) is formed in one piece with the body portion (2) .
9. An infusion container according to claim 8 , wherein the accumulation of material (5) forms a contact surface (6) for a stopper (13) for sealing the container (1) on a side facing towards the opening (4) , and a contact surface (7) for a cap (14) for securing the sealing of the container (1) on a side facing away from the opening (4) .
10. An infusion container according to claim 8 or 9, wherein the neck portion (3) is essentially cylindrical, and wherein the accumulation of material comprises a circumferential ring portion (5) around the neck portion (3) .
11. An infusion container according to any one of claims 8-10, wherein indentations (16) are formed in the accumulation of material (5) .
12. An infusion container according to claim 11, wherein four indentations (16) are equidistantly spaced along the circumference of the accumulation of material
(5) .
13. An infusion container according to any one of claims 8-10, wherein a void (15) which is open towards the inside of the neck portion (3) is arranged in the accumulation of material (5) .
14. An infusion container according to any one of claims 8-10, wherein the accumulation of material (5) comprises a circumferential groove (17) having stiffening ribs (18) which are arranged perpendicularly to the groove (17) .
15. An infusion container according to claim 10, wherein the ring portion (5) is arranged at a distance from the opening (4) of the neck portion (3) and wherein a circumferential groove (17) is arranged in the ring portion (5) such .that mor_e__mac≤rial remains on the opening side of the groove (17) than on the body portion side of the groove (17) .
PCT/EP2003/007581 2002-07-16 2003-07-14 Infusion container an method for producing the same WO2004006827A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003257458A AU2003257458A1 (en) 2002-07-16 2003-07-14 Infusion container an method for producing the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0202220A SE0202220L (en) 2002-07-16 2002-07-16 Infusion container and method for producing the same
SE0202220-0 2002-07-16

Publications (1)

Publication Number Publication Date
WO2004006827A1 true WO2004006827A1 (en) 2004-01-22

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Country Status (3)

Country Link
AU (1) AU2003257458A1 (en)
SE (1) SE0202220L (en)
WO (1) WO2004006827A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009101489A1 (en) * 2008-02-15 2009-08-20 Lalchand Keshrimal Patni 'process for the production of a container for intravenous fluids'

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Publication number Priority date Publication date Assignee Title
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SE0202220L (en) 2004-01-17
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