WO2006046647A1 - 液体収容容器および液体収容容器の製造方法 - Google Patents
液体収容容器および液体収容容器の製造方法 Download PDFInfo
- Publication number
- WO2006046647A1 WO2006046647A1 PCT/JP2005/019791 JP2005019791W WO2006046647A1 WO 2006046647 A1 WO2006046647 A1 WO 2006046647A1 JP 2005019791 W JP2005019791 W JP 2005019791W WO 2006046647 A1 WO2006046647 A1 WO 2006046647A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- liquid
- nozzle
- container
- liquid injection
- tip
- 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
Links
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
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/38—Devices for discharging contents
- B65D25/40—Nozzles or spouts
- B65D25/42—Integral or attached nozzles or spouts
-
- 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
- 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
- B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/08—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents adapted to discharge drops
-
- 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
- B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
- B65D1/09—Ampoules
- B65D1/095—Ampoules made of flexible material
-
- 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
- B29C49/4273—Auxiliary operations after the blow-moulding operation not otherwise provided for
- B29C49/428—Joining
- B29C49/42802—Joining a closure or a sealing foil to the article or pincing the opening
-
- 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
- B29C49/4273—Auxiliary operations after the blow-moulding operation not otherwise provided for
- B29C49/42808—Filling the article
Definitions
- the present invention relates to a liquid container used mainly as an eye dropper for administering medical eye drops to a patient.
- Patent Document 1 includes an inner plug member (a discharge nozzle 4 in Patent Document 1) as a liquid injection portion in a cylindrical mouth portion of a molded container body. What is fitted and fixed is known.
- the inner plug member has a conical recess whose inner diameter increases toward the tip, and a liquid injection hole that penetrates inward and outward at the bottom of the recess to control the amount of liquid that is extruded from the container body. It is.
- the drug solution is transferred to the conical recess formed at the tip of the inner plug member, so that the drug solution with a set amount of the injection pore force can be administered.
- Patent Document 2 discloses a nozzle-like liquid injection section that extends from the container body and has an inner wall formed in a conical shape (the expansion section in Patent Document 2). 14) is disclosed as being integrally formed with the container body.
- a cylindrical insert that connects the inside and the outside of the container main body is fitted in a pilot hole provided in the bottom surface of the liquid injection part.
- the insertion body has a lumen diameter designed so that when a container body is pushed with a predetermined pressing force, a predetermined flow rate of a chemical solution passes.
- the medicinal solution that has passed through the lumen of the inserted body is transferred to the injecting portion, and a medicinal solution with a set amount of injecting pore force at the end of the injecting portion is administered.
- Patent Document 1 Japanese Patent Laid-Open No. 2003-137259 (see paragraph 0014, FIG. 3, etc.)
- Patent Document 2 Japanese Patent Laid-Open No. 2-139347 (refer to Sections 3 to 5 and Fig. 1)
- the container main body and the inner stopper member that is the liquid injection part must be molded separately.
- the inner plug member requires a step of forming a conical recess or a liquid injection hole in order to control the liquid outflow amount.
- the liquid injection part of the eye drop container described in Patent Document 2 also requires a process of forming a conical recess and a pilot hole into which the insert is fitted. Therefore, in this case as well, it is necessary to use molds of respective shapes, so that it was complicated and inefficient to form the liquid injection hole for controlling the liquid outflow amount.
- the liquid injection hole of the eye drop container can administer various amounts of liquid medicine depending on the intended use, just by controlling the amount of the liquid medicine to be administered to a constant amount. For this reason, it is necessary to change the inner diameter and shape of the injection hole in consideration of properties such as the viscosity and surface tension of the drug solution to be administered. However, every time the shape of the liquid injection hole is changed, it is inefficient to produce a mold corresponding to the shape of the liquid injection hole.
- an object of the present invention is to provide a liquid container that can easily form a liquid injection hole for controlling the amount of liquid flow and is excellent in productivity.
- a first characteristic configuration of a liquid container according to the present invention is provided at a distal end portion of a liquid injection cylinder portion provided in a container body made of a thermoplastic material molded in a sealed state.
- a liquid injection hole for guiding the liquid to the outside is provided by burying and fixing the nozzle formed with the inner wall for controlling the liquid outflow amount so as to be in a through state.
- an integrated liquid storage container is used instead of a configuration in which an inner stopper member having a liquid injection hole is provided in the container body.
- a container made of a thermoplastic material in which a liquid is filled and enclosed simultaneously with blow molding or vacuum molding is used.
- the nozzle is fixed to the tip of the liquid injection cylinder. That is, the nozzle is not simply fitted into a predetermined prepared hole, but is simply fixed by being buried in the tip so as to break through the tip of the heated liquid injection cylinder. Therefore, since it is not necessary to aim and fit the nozzle into the pilot hole, the nozzle can be fixed easily.In other words, any nozzle can be applied and the nozzle can be easily fixed to the tip. A liquid injection hole for controlling the body outflow amount can be easily formed.
- the injection hole for administering the chemical solution has only a nozzle as a factor for controlling the force / liquid amount, which is constituted by a nozzle that is a separate member from the container body. For this reason, it becomes easy to accurately set the amount of drug solution to be administered.
- a second characteristic configuration of the liquid container according to the present invention is that a protrusion is provided on the outer peripheral surface of the nozzle.
- the degree of locking of the nozzle with respect to the liquid injection cylinder portion is increased. Can be reliably prevented from falling off from the liquid injection cylinder.
- a third characteristic configuration of the liquid container according to the present invention is that the inner wall of the nozzle is closer to the tip side. It is in the point formed in the cone shape with which an internal diameter becomes large.
- the third characteristic configuration it is easy to form a droplet having a size suitable for eye drops by increasing the inner diameter toward the tip. Furthermore, by appropriately changing the shape of the conical shape, it is possible to set various amounts of the drug solution without changing the length and diameter of the nozzle.
- the nozzle is made of hard resin.
- the nozzle can be easily manufactured. Therefore, when such a nozzle is applied, the inner diameter and shape of the liquid injection hole can be easily changed. That is, since the liquid injection hole having various inner diameters and shapes can be provided according to the intended use, the liquid container can easily cope with properties such as the viscosity and surface tension of the chemical solution.
- a fifth characteristic configuration of the liquid container according to the present invention is a method for manufacturing a liquid container, and is a liquid injection cylinder provided in a container body made of a thermoplastic material that is molded in a sealed state.
- a heating process that heats and softens the tip of the liquid, and a liquid injection that guides the liquid to the outside by burying a nozzle in which the inner wall for controlling the liquid outflow amount is embedded in the soft tip. And a burying process for providing a hole.
- a container body made of a thermoplastic material that can be molded in a sealed state is used, and heating is simply performed.
- the nozzle is simply buried and fixed to the tip so as to break through the tip of the liquid injection cylinder. Therefore, it is possible to easily form a liquid injection hole for controlling the liquid outflow amount, and this is a method for manufacturing a liquid container having excellent productivity.
- the liquid container of the present invention is mainly used as an eye dropper for administering a medical eye drop to a patient.
- FIG. 1 shows an eye drop container X of the present invention.
- This eye drop container X is detachably screwed to a container body A made of a thermoplastic material that is molded in a sealed state and a male thread part 5a formed on the outer peripheral surface of the screw cylinder part 5 of the container body A.
- cap B [0024]
- the container body A can be a flexible thermoplastic material container that is filled with a predetermined amount of a chemical solution simultaneously with blow molding or vacuum molding.
- the chemical liquid may not be filled at the time of molding, but may be simply a hermetically sealed container made of a thermoplastic material, and the container main body is filled with the chemical liquid in a later process.
- the container body A includes a circular bottom 1 bent inward, a hollow cylindrical body 2 connected to the periphery thereof, and a cylindrical neck 3 continuous with a shoulder 2a of the body 2.
- the upper position force of the neck portion 3 An annular stepped portion 4 bulging outward in the diametrical direction, a screw cylinder portion 5 having a male screw portion 5a continuous to the upper side thereof, and a liquid injection continuous to the upper side It is made up of a cylindrical part 6.
- a nozzle 8 formed with an inner wall 7 for controlling the liquid outflow amount is buried and fixed at the tip of the liquid injection cylinder 6 so as to be inserted, thereby introducing the chemical liquid to the outside.
- Liquid hole 6a is provided.
- the nozzle 8 is, for example, cylindrical and closed at both ends, has a pipe shape, and is formed of a hard resin such as polypropylene, acrylic, or polycarbonate. That is, as will be described later, when the liquid injection cylinder portion 6 provided in the container main body A is heated and softened, when the nozzle 8 is inserted into the liquid injection cylinder portion 6 by being pierced, the nozzle 8 It is made of a material that does not deform due to heat.
- Such a nozzle 8 can be easily obtained by injection molding using a simple mold capable of forming a pipe. Further, by cutting the long pipe into an appropriate length, the nozzle 8 can be easily obtained without using a mold.
- the inner diameter and shape of the liquid injection hole 6a can be easily changed.
- the liquid injection hole 6a having various inner diameters and shapes can be provided according to the intended use, the liquid container can easily cope with properties such as the viscosity and surface tension of the chemical solution.
- the length of the nozzle 8 is, for example, about 5 to 7 mm.
- the diameter of the liquid injection hole 6a provided in the nozzle 8 is designed in a range of, for example, about 0.3 to about Lmm according to the liquid properties such as the viscosity and surface tension of the chemical solution.
- the drop volume is adjusted within the range of 25 to 50 L per drop according to the purpose, and is kept constant.For liquids with high surface tension, the diameter of the injection hole 6a is reduced to reduce the surface For liquids with low tension, increase the diameter of the injection hole 6a.
- an integrally molded container that can maintain the function as an eye drop container is applied in the form in which the inner plug member provided with the liquid injection hole is attached to the container main body A. That is, it is not necessary to attach the inner plug member provided with the liquid injection hole 6a to the container body A. Therefore, the step of fitting the inner plug member into the container body A is not required, and the eye drop container is excellent in productivity.
- the liquid injection hole for administering the chemical solution is configured by the nozzle 8 which is a member different from the container main body A, the only factor for controlling the liquid amount is the nozzle 8. Therefore, when setting the amount of drug solution to be administered, it is only necessary to design only the size 'shape of the nozzle 8.
- thermoplastic material that is a constituent material of the container body A
- polyethylene polyethylene-polypropylene, polypropylene, polyethylene terephthalate, polycarbonate, or the like
- polyethylene terephthalate polycarbonate
- the cap B is formed with a plug-like projection 9 which is fitted into the lumen 6b of the nozzle 8 and sealed when screwed into the male thread 5a of the container body A.
- the container body A in the eye drop container X is manufactured by blow molding or vacuum molding.
- blow molding a manufacturing method by blow molding will be described.
- a pair of main molding dies 11 having a first cavity 10 for molding a portion of the container body A ranging from the annular step 4 to the bottom 1 and the container body Extruder head placed on top of a pair of sub-molding dies 13 having a second cavity 12 for forming the screw cylinder 5 and the liquid injection cylinder 6 of A, while being opened and operated.
- Norison 15 which is an elongated hollow tube-like semi-molten thermoplastic material (for example, polyethylene), is extruded along the vertical direction through both molds 11 and 13.
- the main molding die 11 is closed and operated, and a baryson is formed along the molding surface 11a of the main molding die 11 by blowing air action or vacuum action. Mold 15 while expanding.
- a predetermined amount of drug solution is filled from the drug supply pipe 16.
- the sub-molding mold 13 is closed and operated along with the molding surface 13a of the sub-molding mold 13 by a compressed air blowing action or a vacuum action. Then, the ballison 15 is molded while being expanded, and the filled liquid is sealed (enclosed) simultaneously with the molding.
- a heating step of heating and softening the tip end portion of the liquid injection cylinder portion 6 by a heating means (not shown) capable of supplying hot air is performed.
- the constituent material of the container body A is polyethylene
- the melting point is about 115 ° C
- heating is performed by supplying hot air of about 120 to 200 ° C for about 1 to LO seconds.
- the tip of the liquid injection cylinder 6 is heated to about 80 to 100 ° C. and softened. In this state, heating of the tip of the liquid injection cylinder 6 does not melt and lose its shape! ,.
- a thinned tip portion of the liquid injection tube portion 6 as shown in Fig. 3 (b) may be used.
- the wall pressure at the tip end portion of the liquid injection cylinder portion 6 and the periphery thereof is, for example, about 0.8 to 1.0 mm
- the thickness reduction configuration is, for example, about 0.2 to 0.5 mm.
- an embedding process is performed in which the nozzle 8 is embedded in the tip end portion of the liquid injection cylinder portion 6 so as to provide a liquid injection hole for guiding the liquid to the outside (FIGS. 3 (c) to 3).
- the nozzle 8 held by an appropriate support (not shown) is At this time, in order to maintain the shape of the distal end portion of the liquid injection cylinder portion 6, it is performed with a concave member (not shown) pressed against the periphery of the distal end portion.
- the nozzle 8 should be inserted strongly because it is heated to such an extent that it does not collapse.
- after ⁇ nozzle 8 is in a state of being tightly dressed on the side surface of the instilling tube portion 6 at the tip portion of the resin is rolled up nozzle 8, the nozzle 8, the liquid by such ⁇ outside The guiding lumen is not blocked! / Designed to be about ⁇ in length.
- the tip of the liquid injection cylinder 6 is cooled to fix the nozzle 8 to the tip. Make it.
- the nozzle 8 is in a state of being fitted to the distal end portion of the liquid injection cylinder portion 6 that has become hard to some extent, and the distal end portion force is difficult to fall off.
- the tip portion is heated to such an extent that it does not collapse, the shape of the peripheral portion of the hole into which the nozzle 8 is inserted is maintained.
- the ophthalmic container manufactured by the above-described manufacturing method uses a container body A made of a thermoplastic material that can be molded in a sealed state when manufacturing an ophthalmic container X in which the amount of liquid to be administered can be controlled to a constant amount. Then, the nozzle 8 is simply buried in and fixed to the tip portion so as to break through the tip portion of the heated liquid injection cylinder portion 6. Therefore, the injection hole 6a for controlling the liquid outflow amount can be easily manufactured, and the eye drop container X is manufactured with excellent productivity.
- a protrusion 81 may be provided on the outer peripheral surface of the nozzle 8 as shown in FIG.
- the protrusion 81 reliably prevents the nozzle 8 from dropping out from the liquid injection cylinder part 6 after it is buried and fixed so as to be inserted into the tip part of the liquid injection cylinder part 6.
- the projection 81 is formed at a position where it is buried inside the tip of the liquid injection cylinder 6 when fixed, the displacement of the fixed nozzle 8 can be prevented, so the tip of the liquid injection cylinder 6 can be prevented.
- Nozzle 8 protrudes due to misalignment and can prevent contact with the patient's eyes and injury.
- the inner wall 7 of the nozzle 8 can be formed in a conical shape whose inner diameter increases toward the tip end side.
- the inner wall 7 is formed in a conical shape in this way, it becomes easy to form a droplet having a size suitable for eye drops.
- the shape of the conical shape it is possible to set various amounts of drug solution to be administered without changing the length of the nozzle 8.
- the liquid storage container of the present invention can be used for various liquid injection containers in addition to the power that can be used as an eye dropper that mainly administers medical eye drops to a patient.
- FIG. 1 is a schematic view of a liquid container according to the present invention.
- FIG. 2 is a schematic view of a method for producing a container body in the liquid container according to the present invention.
- FIG. 3 is a schematic view of a method for producing a liquid container according to the present invention.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004-313004 | 2004-10-27 | ||
| JP2004313004 | 2004-10-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006046647A1 true WO2006046647A1 (ja) | 2006-05-04 |
Family
ID=36227889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/019791 Ceased WO2006046647A1 (ja) | 2004-10-27 | 2005-10-27 | 液体収容容器および液体収容容器の製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2006046647A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009144559A3 (en) * | 2008-05-30 | 2010-08-12 | Lameplast S.P.A. | Process for the manufacture of single-dose phials for fluid products of the medical, pharmaceutical, cosmetic type or the like, and a phial thus obtainable |
| CN103126887A (zh) * | 2012-11-16 | 2013-06-05 | 冀州市吉星医用包装材料有限公司 | 可连续产生液滴的滴液嘴及制造模具 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0654552U (ja) * | 1992-12-28 | 1994-07-26 | 国際試薬株式会社 | 点眼ビン |
| WO2001012124A1 (en) * | 1999-08-17 | 2001-02-22 | Santen Pharmaceutical Co., Ltd. | Open instillation container and method of manufacturing the container |
-
2005
- 2005-10-27 WO PCT/JP2005/019791 patent/WO2006046647A1/ja not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0654552U (ja) * | 1992-12-28 | 1994-07-26 | 国際試薬株式会社 | 点眼ビン |
| WO2001012124A1 (en) * | 1999-08-17 | 2001-02-22 | Santen Pharmaceutical Co., Ltd. | Open instillation container and method of manufacturing the container |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009144559A3 (en) * | 2008-05-30 | 2010-08-12 | Lameplast S.P.A. | Process for the manufacture of single-dose phials for fluid products of the medical, pharmaceutical, cosmetic type or the like, and a phial thus obtainable |
| CN103126887A (zh) * | 2012-11-16 | 2013-06-05 | 冀州市吉星医用包装材料有限公司 | 可连续产生液滴的滴液嘴及制造模具 |
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