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
  • B65D51/00—Closures not otherwise provided for
  • B65D51/14—Rigid discs or spherical members adapted to be held in sealing engagement with mouth of container, e.g. closure plates for preserving jars
• • 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
  • B65D51/00—Closures not otherwise provided for
  • B65D51/002—Closures to be pierced by an extracting-device for the contents and fixed on the container by separate retaining means
• • 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
  • A61J1/14—Details; Accessories therefor
  • A61J1/1406—Septums, pierceable membranes

Definitions

• the present invention concerns a plastic rubber stopper for closing a vial in a system for preparing ready to use suspensions or solutions of an active product stored in said vial.
• Such systems usually comprise two hermetically closed vials, one containing an active product generally in the form of a lyophilized or otherwise dried powder or granulate or a liquid and the second containing the liquid in which the active product is dissolved or suspended.
• the system further comprises a connecting piece for temporary connection of the two vials.
• the active product is usually contained in a glass vial which is closed by an elastic rubber stopper inserted in the neck of the vial.
• the stopper has in its axis a channel which is covered by a thin, perforable airtight membrane, such as aluminium, which is glued or welded onto the top surface of the stopper.
• the second vial containing the liquid is more often made of plastic material and is closed by a dropper with a tip having a diameter smaller than the said channel through the stopper.
• the dropper perforates the membrane in such a way that airtightness is provided between the two vials.
• stoppers have the disadvantage that they consist of two pieces namely the stopper as such and the membrane affixed to it. To produce such a stopper several consecutive manufacturing steps are necessary resulting in a relatively expensive product. Another problem is the risk of having aluminium particles in the reconstituted solution when the aluminium foil is perforated at the time of use. This would constitute a danger of the final user, especially if the product is for ophtalmic use or skin treatment around the eyes.
• the aim of the present invention is to provide a stopper whose manufacture is less complicated and which is, thus, less expensive, harmless and environment-friendly when recycled.
• a stopper consisting of one piece of plastic rubber material which has a concentrical portion whose axial thickness is reduced to a membrane which has radially arranged cuts constituting defined breakage lines during its tearing.
• two curved projections are arranged on the upper surface of the stopper to avoid their sticking together when manipulated by machines.
• Another preferred embodiment has an annular projection on the lower surface of a flange-shaped portion of the stopper.
• a further preferred feature is a cut-out portion in the lower stopper part.
• Fig. 1 shows a side view of a stopper
• Fig. 2 shows the interior of the stopper from below
• Fig. 3 is a top view of the stopper of Fig. 1
• the stopper 1 shown in the figures is made of plastic rubber material. It is generally cylindrical and has an upper flange-shaped portion 2 and a lower skirt-shaped portion 3. In its interior it is provided with a coaxial cavity 4 extending from the lower surface 5 up almost to the top surface 6 leaving a thin membrane-like layer 7 of the stopper material to keep the closing capability of the stopper.
• the skirt-shaped portion has a cut-out section 4a which extends from the lower surface 5 to about 2/3 of the entire height of the stopper.
• the width of the cut-out section represents an angle of about 20°.
• the cut-out section facilitates the adaptation of the outer cylindrical dimensions of the skirt-shaped portion 3 to the inner wall of the collar of the vial.
• the membrane-like layer 7 is provided with four radially arranged cuts 8 which meet in the stopper axis and which extend partially through the layer 7 without entirely perforating it to keep the airtightness of the stopper.
• the cuts constitute predefined breakage lines which guarantee tight attachment of the membrane-like layer flaps to the dropper to keep airtightness during connec- tion. After removal of the other vial the flaps close the perforation to essentially retain tightness.
• the lower surface of the flange-shaped portion 2 is provided with an annular projection 9 rising slightly above the surface. This projection serves to enhance the air tightness provided be the skirt-shaped portion 3.
• the top surface 6 of the stopper is equipped with two arcuate projections 10 rising slightly above the surface level. These projections serve to avoid pairs of stoppers sticking together with their top surfaces which would be undesirable for machine manipulation.
• the shape of the projections could of course differ from being arcuate.
• the stopper is particularly useful in connection with the dual vial connector described in PCT/EP 97/04660 and PCT/EP 04290 in which however the membrane and the sealing rings would be eliminated. This combination would be a preferable alternative for the user who due to habit or in view of manufacturing restrictions intends to remain with a stopper solution.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Medical Preparation Storing Or Oral Administration Devices (AREA)
• Closures For Containers (AREA)

Priority Applications (1)

Applications Claiming Priority (4)

Publications (1)

Family

ID=8167258

Family Applications (1)

Country Status (11)

Cited By (2)

Families Citing this family (3)

Family Cites Families (10)

• 1999
  • 1999-04-01 AU AU38124/99A patent/AU3812499A/en not_active Abandoned
  • 1999-04-01 WO PCT/EP1999/002271 patent/WO2000059796A1/en active Application Filing
• 2000
  • 2000-03-28 CZ CZ20013393A patent/CZ294054B6/cs not_active IP Right Cessation
  • 2000-03-28 HU HU0200428A patent/HU228739B1/hu not_active IP Right Cessation
  • 2000-03-28 EP EP00914170A patent/EP1169238A1/en not_active Ceased
  • 2000-03-28 WO PCT/EP2000/002738 patent/WO2000059797A1/en not_active Application Discontinuation
  • 2000-03-28 PL PL350603A patent/PL201020B1/pl unknown
  • 2000-03-28 CA CA002368154A patent/CA2368154A1/en not_active Abandoned
  • 2000-03-28 JP JP2000609321A patent/JP2002541029A/ja active Pending
  • 2000-03-28 AU AU35582/00A patent/AU3558200A/en not_active Abandoned
  • 2000-03-28 KR KR1020017012418A patent/KR20020028868A/ko not_active Ceased
  • 2000-03-28 CN CN00805645A patent/CN1345284A/zh active Pending
  • 2000-03-28 IL IL14514600A patent/IL145146A0/xx unknown

Non-Patent Citations (1)

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