EP0288250A2 - Poche pour la distribution de liquide, distillable en cornues - Google Patents

Poche pour la distribution de liquide, distillable en cornues Download PDF

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Publication number
EP0288250A2
EP0288250A2 EP88303530A EP88303530A EP0288250A2 EP 0288250 A2 EP0288250 A2 EP 0288250A2 EP 88303530 A EP88303530 A EP 88303530A EP 88303530 A EP88303530 A EP 88303530A EP 0288250 A2 EP0288250 A2 EP 0288250A2
Authority
EP
European Patent Office
Prior art keywords
port
plug
closure
liquid dispensing
bag
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
EP88303530A
Other languages
German (de)
English (en)
Other versions
EP0288250A3 (fr
Inventor
David Scarrow
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.)
DRG Medical Packaging Supplies Flexpak Ltd
Original Assignee
DRG UK Ltd
DRG Flexpak Ltd
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 DRG UK Ltd, DRG Flexpak Ltd filed Critical DRG UK Ltd
Publication of EP0288250A2 publication Critical patent/EP0288250A2/fr
Publication of EP0288250A3 publication Critical patent/EP0288250A3/fr
Ceased legal-status Critical Current

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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
    • A61J1/10—Bag-type containers

Definitions

  • the present invention relates to liquid dispensing bags which can be sterilised by heating. It is particularly concerned with bags for medical applications, e.g. for use with parenteral, irrigation and dialysis fluids.
  • a type of bag which is generally known is made of plastic film, and has one or more ports (provided by separate tubes) which are sealed between front and back portions of plastic film material, so as to extend from the interior of the bag to the exterior.
  • each port is sealed at its outer end, in a manner that allows the user to open it when required.
  • Various types of port also have an intermediate closure.
  • the bag is still sealed by some form of ruptural membrane, through which he may then insert a hypodermic needle or spike.
  • the bag as manufactured includes a port having two spaced closures. The volume between them will usually contain air or other gas. If the bag is heated for sterilisation, this gas endeavours to expand, and there is a danger that something will rupture. It is therefore known to furnish ports with expansion chambers. However, this is often undesirable, since it adds yet more constraints on the design and manufacture of the bag.
  • the present invention provides a liquid dispensing bag having a port extending from the interior to the exterior of the bag; the port having an inner closure and an outer closure and, between them, tear-off means comprising a weakened region and a pair of closely spaced radial flanges, one on each side of the weakened region; the outer closure being provided by a plug member having an outer sealing portion and a spigot portion of lesser diameter which extends within the port towards the inner closure so as to reduce the gas space in the port; the transition between the sealing and spigot portions being a chamfered region which extends across at least an outer portion of the weakened region.
  • the outer sealing portion must not extend into the weakened region, or it may seal to the port wall therein and interfere with tearability.
  • the chamfer must extend across at least the outer portion of the weakened region or the resistance to mutual welding of the flanges is not achieved.
  • the bag 10 is made from transparent plastics film peripherally sealed to form a liquid enclosure 12.
  • a plurality of ports (in this example four) are sealed into the bag at one end, by the pattern of heat seals 14.
  • Each port comprises a tubular conduit which extends from the liquid enclosure 12 to the exterior.
  • the ports shown are a giving port 16; a filling tube 18; an administration port 20; and an additional port 22.
  • the giving port 16 is closed by an intermediate membrane 24. This membrane 24 is located interiorly of the outer bag seals 14.
  • the port 16 can be RF welded into position using electrodes movable into a welding position from outside the bag (one electrode being passed into the port through the outer end).
  • the port 16 also has an outer closure provided by a plug 26.
  • the plug has an outer cap portion 28, a sealing portion 30, and an inner spigot portion 32 which terminates slightly above the membrane 24.
  • the transition between the sealing portion 30 and the spigot portion 32 is formed as a chamfer 31.
  • the outer portion of the giving port 16 is adapted to be torn away together with the plug 26 (most simply by a twisting motion). In this example, this is achieved by means of a formation as disclosed in our specification GB 2,160,184.
  • a weakened region 34 between a pair of radial flanges 36. Above the flanges, there are finger grips 38.
  • the radial flanges 36 are very close together so as to assist in keeping the ultimate user's fingers away from contact with the ruptured edge of the port when the outer end portion is torn away.
  • the sealing portion 30 of the plug is a tight fit within the port, and the material is such that, when the bag is autoclaved, a seal is produced. Indeed, both of the sealing portion 30 and the spigot portion 32 have relatively greater diameters than are shown in the schematic drawing. Thus the spigot portion 32 occupies most of the internal volume of the port between the sealing portion 30 and the membrane 24, but without substantial frictional engagement; and it does not seal on autoclaving.
  • the chamfer 31 is accurately located so as to extend in the region between the flanges 36. It is found that the act of inserting the plug 26 at the correct depth displaces the flanges 36 slightly, and holds them apart.
  • the administration port 20 has a similar plug 40 and tear-off formations 42.
  • the plug 40 has a chamfer 41 located so as to bridge the region between the flanges 43 of the tear-off formations 42.
  • a needle guide 46 extends for some way above it.
  • the intermediate membrane 24 is located inwardly of the outer bag seal. As well as permitting RF welding of the port, this enables the membrane 24 to shield the septum 44 from liquid in the bag.
  • the filling port 18 has a simple seal 48 at its outer end. There is no intermediate seal and so it does not need arrangements as provided for the giving and administration ports 16,20.
  • the additional port 22 has a snap-off closure arrangement 50 located just above the top of the bag. This may be as disclosed in WO 81/01105 of Baxter Travenol Laboratories Inc.. At its outer end, it has a formation 52 for releasably engaging a cap. The formation may be a pair of flanges forming part of a Luer lock. An injection site cap or a simple screw closure cap may be applied.
  • an administration port may be "swabbable". This can be achieved by omitting the needle guide and having the rubber septum adjacent the tear-off line.
  • the septum is shaped to serve as a needle guide.
  • a septum could resemble in form an elongated combination of the septum 44 and guide 46 shown in the figure, but be installed the other way up, with its flat head adjacent the tear-off line.
  • Fig. 2 shows an administration port 20 which has been opened, i.e. after the outer portion has been torn away (together with the plug 40). Material may then be injected into the bag, via a syringe needle passed through the guide 46 and septum 44. The port 20 may then be closed by inserting a closure plug 60 as shown in Fig. 3. This is intended to be non-removable. Thus it has a simple cylindrical head 62 which is received almost wholly within the port 20.
  • a swabbable insert plug 64 which can be pressed into an opened port 20, as shown in Fig. 4.
  • the plug 64 has a head portion 66; a body portion 68 that fits sealingly within the port 20; and a spigot portion 70 that fits within the needle guide 46.
  • the plug has an axial hole 72, which may open out at the top to guide in a needle.
  • the hole 72 is closed by a swabbable rubber septum 74 which is clamped to the top of the head portion 66 by a cap 76 which embraces the head portion and has a central aperture 78 in register with the hole 72.
  • the insert plug 64 may be removed and replaced by a closure-plug 60.

Landscapes

  • 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)
  • Packages (AREA)
EP88303530A 1987-04-23 1988-04-20 Poche pour la distribution de liquide, distillable en cornues Ceased EP0288250A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8709653 1987-04-23
GB878709653A GB8709653D0 (en) 1987-04-23 1987-04-23 Retortable liquid dispensing bags

Publications (2)

Publication Number Publication Date
EP0288250A2 true EP0288250A2 (fr) 1988-10-26
EP0288250A3 EP0288250A3 (fr) 1990-06-13

Family

ID=10616229

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88303530A Ceased EP0288250A3 (fr) 1987-04-23 1988-04-20 Poche pour la distribution de liquide, distillable en cornues

Country Status (2)

Country Link
EP (1) EP0288250A3 (fr)
GB (1) GB8709653D0 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0408682A1 (fr) * 1988-11-25 1991-01-23 Baxter Int Orifice de reservoir.
EP0412134A1 (fr) * 1988-11-25 1991-02-13 Baxter Int Ensemble d'ouverture et de fermeture.
WO1995014455A1 (fr) * 1993-11-23 1995-06-01 Baxter International Inc. Adapteur pour point d'acces et protection associee, recipient comprenant ces derniers
EP0766956A1 (fr) * 1995-10-02 1997-04-09 B. Braun Melsungen Ag Récipient pour liquide médicale
EP0830874A3 (fr) * 1996-09-17 1998-04-01 Fresenius AG Dispositif de connecteur en particulier pour usage médical

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0101626A1 (fr) * 1982-07-22 1984-02-29 Medistad Holland B.V. Procédé de fabrication d'un sac d'infusion et sac ainsi obtenu
DD209389A5 (de) * 1982-01-07 1984-05-09 Fresenius Ag Aufbewahrungsbeutel
EP0114964A1 (fr) * 1982-12-02 1984-08-08 Miles Laboratories Inc. Mélange de polymères et récipient souple fabriqué à partir de ce mélange

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD209389A5 (de) * 1982-01-07 1984-05-09 Fresenius Ag Aufbewahrungsbeutel
EP0101626A1 (fr) * 1982-07-22 1984-02-29 Medistad Holland B.V. Procédé de fabrication d'un sac d'infusion et sac ainsi obtenu
EP0114964A1 (fr) * 1982-12-02 1984-08-08 Miles Laboratories Inc. Mélange de polymères et récipient souple fabriqué à partir de ce mélange

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0408682A1 (fr) * 1988-11-25 1991-01-23 Baxter Int Orifice de reservoir.
EP0412134A1 (fr) * 1988-11-25 1991-02-13 Baxter Int Ensemble d'ouverture et de fermeture.
EP0412134A4 (en) * 1988-11-25 1991-07-17 Baxter International Inc. Closure and port assembly
EP0408682A4 (en) * 1988-11-25 1991-07-24 Baxter International Inc. Port assembly for a container
WO1995014455A1 (fr) * 1993-11-23 1995-06-01 Baxter International Inc. Adapteur pour point d'acces et protection associee, recipient comprenant ces derniers
US5498253A (en) * 1993-11-23 1996-03-12 Baxter International Inc. Port adaptor and protector and container having same
US5620433A (en) * 1993-11-23 1997-04-15 Baxter International Inc. Port adaptor and protector and container having same
EP0815825A1 (fr) * 1993-11-23 1998-01-07 Baxter International Inc. Combiné adaptateur et protecteur d'orifice
AU693835B2 (en) * 1993-11-23 1998-07-09 Baxter International Inc. Port adaptor and protector and container having same
KR100382173B1 (ko) * 1993-11-23 2003-08-27 박스터 인터내쇼날 인코포레이티드 포트어댑터및프로텍터와이를구비한용기
EP0766956A1 (fr) * 1995-10-02 1997-04-09 B. Braun Melsungen Ag Récipient pour liquide médicale
EP0830874A3 (fr) * 1996-09-17 1998-04-01 Fresenius AG Dispositif de connecteur en particulier pour usage médical

Also Published As

Publication number Publication date
GB8709653D0 (en) 1987-05-28
EP0288250A3 (fr) 1990-06-13

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