WO2004069678A1 - Drop-dispensing insert with laser bore - Google Patents
Drop-dispensing insert with laser bore Download PDFInfo
- Publication number
- WO2004069678A1 WO2004069678A1 PCT/IB2003/000435 IB0300435W WO2004069678A1 WO 2004069678 A1 WO2004069678 A1 WO 2004069678A1 IB 0300435 W IB0300435 W IB 0300435W WO 2004069678 A1 WO2004069678 A1 WO 2004069678A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- drop dispenser
- passage
- drop
- throttling
- dispenser according
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/0008—Introducing ophthalmic products into the ocular cavity or retaining products therein
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
- B23K26/382—Removing material by boring or cutting by boring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
- B23K26/382—Removing material by boring or cutting by boring
- B23K26/389—Removing material by boring or cutting by boring of fluid openings, e.g. nozzles, jets
-
- 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
- B65D47/00—Closures with filling and discharging, or with discharging, devices
- B65D47/04—Closures with discharging devices other than pumps
- B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
- B65D47/18—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages for discharging drops; Droppers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/12—Vessels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/30—Organic material
- B23K2103/42—Plastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C45/0055—Shaping
- B29C2045/0058—Shaping removing 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
- B29C2791/00—Shaping characteristics in general
- B29C2791/001—Shaping in several steps
-
- 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
- B29C2793/00—Shaping techniques involving a cutting or machining operation
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2628—Moulds with mould parts forming holes in or through the moulded article, e.g. for bearing cages
Definitions
- the invention relates to a drop dispenser according to the preamble of the independent claims .
- Drop dispensers of this kind are used for dispensing liquids in drops.
- a typical application are pharmaceutical products, for example eye drops, or cosmetics.
- the drop dispensers usually comprise a flexible container or are designed as a cap or insert for a flexible container. In contrast to drop dispensers for inflexible containers there is no opening to let air from the outside into the container during dispensing.
- a problem to be solved by the present inven- tion lies therefore in providing a drop dispenser which avoids the problems described above at least partially.
- a drop dispenser which comprises at least one throttling passage and a delivery passage through which the contents must pass before being dispensed, wherein the at least one throttling passage enters laterally into the delivery passage.
- a further problem to be solved by the invention lies in providing a method for producing a drop dispenser faster, more precise and at a lower price. This problem is solved by independent claim
- Fig. 1 a preferred embodiment of a container with a drop-dispensing insert according to the invention in a vertical cross-sectional view
- Fig. 2 the drop-dispensing insert of fig. 1 in a vertical cross-sectional view
- Fig. 3 the drop-dispensing insert of fig. 1 in a side view
- Fig. 4 a three dimensional, partially sectional view of the container with drop-dispensing insert of fig. 1,
- Fig. 5 the throttling passages of a preferred embodiment of the invention, in a partial, cross- sectional view,
- Fig. 7 the throttling passage of a further preferred embodiment of the invention, in a partial, cross-sectional view
- Fig. 8 the throttling passage of a further preferred embodiment of the invention, in a partial, cross-sectional view.
- a vertical cross-sectional view of a preferred embodiment of container with a drop-dispensing insert 3 according to the invention is shown in fig. 1.
- the drop-dispensing insert 3 is also shown in fig. 2 in a cross sectional view and in fig. 3 in a side view.
- the drop-dispensing insert 3 is preferably made from plastic, using an injection molding process.
- the container 5 is held with the spout downwards and is squeezed to pressurize its content.
- the con- tainer 5 is flexible, for example a flexible bottle or a tube. Due to the pressure the liquid passes through the two throttling passages 1 and into the delivery passage 2.
- the two throttling passages 1 enter laterally and diametrically opposed into the delivery passage 2.
- the delivery passage 2 is substantially conical and has its largest diameter at the distal end of the drop dispenser.
- the drop-dispensing insert 3 is designed elongated, as a cannula. Opposite to its distal end it has a shaft, which fits into a cylindrical opening or socket of the container 5 for fixing the insert to the container.
- the diameter of the drop-dispensing insert 3 is smaller than the diameter of the opening, such that liquid can pass between the inner wall of the opening and the outside of the drop-dispensing insert 3 to the throttling passages 1.
- the container 5 comprises a thread 6, such that the container 5 can be closed by screwing on a cap.
- the container is a tube, as already mentioned; the precise metering and the prevention of jets by the drop dispenser according to the invention is particularly useful with tubes which are generally less stable against squeezing than other types of flexible containers .
- FIG. 4 A three dimensional, partially sectional view of the container 5 with drop-dispensing insert 3 in the embodiment of figs. 1 to 3 is shown in fig. 4.
- the throttling passages of the embodiment of figs. 1 to 4 are shown in fig. 5 in a partial, cross- sectional view.
- the throttling passages 1 are perpendicular to the axis of the delivery passage 2.
- the throttling passages 2 are substantially cylindrical and both on the same straight line. They are preferably created by laser drilling. Laser drilling has the advantage that it is very precise, allows small diameters even at a high drilling depth and is relatively fast.
- Two diametrically opposed throttling passages 1 as shown in fig. 5 can be drilled within the same procedure step.
- the drop-dispensing insert 3 should be fabricated from a suited material, in particular plastic which sufficiently absorbs the laser's energy, for example due to a dark color.
- the throttling passages 1 can also be made during the injection molding process, using conventional drilling, or by a combination of the above mentioned methods.
- the throttling passages 1 have preferably a diameter of less than lOO ⁇ m. Instead of two throttling passages there can also be only one, three, four or even more throttling passages. Since these passages are "in parallel" regarding the fluid flow the diameter of the individual throttling passages 1 has to be smaller, if there are more throttling passages 1.
- the throttling passages 1 are preferably evenly spaced along a circumference of the delivery passage 2. An alternative arrangement of a throttling passage is shown in fig. 6.
- the throttling passage 1 is inclined, such that the velocity vector of the fluid has a component opposite to the dispensing direction, wherein the dispensing direction is the direction towards the distal end of the drop-dispensing insert 3, along the axis of the drop-dispensing insert 3.
- a throttling passage is shown in fig. 7.
- the throttling passage 1 is also inclined, but in opposition to fig. 6 the ve- locity vector of the fluid has a component in direction of the dispensing direction.
- the term lateral is understood to comprise such embodiments as well wherein the throttling passage (s) enter the delivery passage 2 at an angle, but still through the lateral wall thereof.
- a throttling passage 1 is shown in fig. 8.
- the throttling passage 1 is conical, with its smallest diameter at the connection to the delivery passage 2.
- This embodiment is particularly suited, if the throttling passage 1 is to be created during injection molding or by conventional drilling.
- the conical form has the advantage that the slider used in the injec- tion molding process or the drill used for conventional drilling does not break as easily.
- the disadvantage of such a drilling is, that the smallest diameter of the throttling passage 1 cannot be defined as precise. If only a first section of the throttling passage 1 is created in such a way, the second, smaller section can still be created using a laser, which assures a precise minimum diameter.
- a conical shape, or in combination therewith a cylindrical shape with stepwise reduced di- ameter of the cylindrical sections is possible as well.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Plasma & Fusion (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Ophthalmology & Optometry (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003202757A AU2003202757A1 (en) | 2003-02-07 | 2003-02-07 | Drop-dispensing insert with laser bore |
PCT/IB2003/000435 WO2004069678A1 (en) | 2003-02-07 | 2003-02-07 | Drop-dispensing insert with laser bore |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IB2003/000435 WO2004069678A1 (en) | 2003-02-07 | 2003-02-07 | Drop-dispensing insert with laser bore |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004069678A1 true WO2004069678A1 (en) | 2004-08-19 |
Family
ID=32843790
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2003/000435 WO2004069678A1 (en) | 2003-02-07 | 2003-02-07 | Drop-dispensing insert with laser bore |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU2003202757A1 (en) |
WO (1) | WO2004069678A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009261453A (en) * | 2008-04-22 | 2009-11-12 | Hanshin Kasei Kogyo Kk | Dripping nozzle |
EP2597044A1 (en) | 2011-11-25 | 2013-05-29 | Hoffmann Neopac AG | Drop-dispensing insert and container with a drop-dispensing insert |
EP3034428A1 (en) * | 2014-12-19 | 2016-06-22 | SHB GmbH | Dosing cap for a dosing bottle |
DE102017115779A1 (en) | 2017-07-13 | 2019-01-17 | Gerresheimer Regensburg Gmbh | Injection molding tool for producing an injection molded part and method for producing an injection molded part |
US20220281666A1 (en) * | 2021-03-02 | 2022-09-08 | Kolmar Korea Co., Ltd. | Container |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1011308B (en) * | 1954-07-12 | 1957-06-27 | Guenther Wagner Verwaltungs G | Closure for container, as well as tool for forming the closure |
US2920624A (en) * | 1958-07-31 | 1960-01-12 | Gillette Co | Eye drop dispenser |
US3006514A (en) * | 1958-03-12 | 1961-10-31 | Pressure Dispensers Inc | Dispensing valve |
DE2530232A1 (en) * | 1975-07-07 | 1977-02-03 | Johannes Gross | Swing nozzle for pressurized bottle - has cap on bottle neck with nozzle pipe and sealing plate integrally connected |
FR2622795A1 (en) * | 1987-11-05 | 1989-05-12 | Kerplas Snc | Drip dispenser |
EP0459498A1 (en) * | 1990-05-31 | 1991-12-04 | Pall Corporation | Contamination-resistant dispensing and metering device |
GB2267882A (en) * | 1992-05-23 | 1993-12-22 | Scottish & Newcastle Plc | Beverage frothing device for beverage container |
EP1072214A2 (en) * | 1999-07-01 | 2001-01-31 | Filtertek, Inc. | Semisolid product dispensing head |
DE10112332C1 (en) * | 2001-03-13 | 2002-08-29 | Stella Kunststofftechnik Gmbh | Drip cap for dosing liquid in drop form and container with drip cap |
WO2003016163A1 (en) * | 2001-08-09 | 2003-02-27 | Tadashi Hagihara | Container with discharge flow velocity mechanism |
-
2003
- 2003-02-07 AU AU2003202757A patent/AU2003202757A1/en not_active Abandoned
- 2003-02-07 WO PCT/IB2003/000435 patent/WO2004069678A1/en not_active Application Discontinuation
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1011308B (en) * | 1954-07-12 | 1957-06-27 | Guenther Wagner Verwaltungs G | Closure for container, as well as tool for forming the closure |
US3006514A (en) * | 1958-03-12 | 1961-10-31 | Pressure Dispensers Inc | Dispensing valve |
US2920624A (en) * | 1958-07-31 | 1960-01-12 | Gillette Co | Eye drop dispenser |
DE2530232A1 (en) * | 1975-07-07 | 1977-02-03 | Johannes Gross | Swing nozzle for pressurized bottle - has cap on bottle neck with nozzle pipe and sealing plate integrally connected |
FR2622795A1 (en) * | 1987-11-05 | 1989-05-12 | Kerplas Snc | Drip dispenser |
EP0459498A1 (en) * | 1990-05-31 | 1991-12-04 | Pall Corporation | Contamination-resistant dispensing and metering device |
GB2267882A (en) * | 1992-05-23 | 1993-12-22 | Scottish & Newcastle Plc | Beverage frothing device for beverage container |
EP1072214A2 (en) * | 1999-07-01 | 2001-01-31 | Filtertek, Inc. | Semisolid product dispensing head |
DE10112332C1 (en) * | 2001-03-13 | 2002-08-29 | Stella Kunststofftechnik Gmbh | Drip cap for dosing liquid in drop form and container with drip cap |
WO2003016163A1 (en) * | 2001-08-09 | 2003-02-27 | Tadashi Hagihara | Container with discharge flow velocity mechanism |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009261453A (en) * | 2008-04-22 | 2009-11-12 | Hanshin Kasei Kogyo Kk | Dripping nozzle |
EP2597044A1 (en) | 2011-11-25 | 2013-05-29 | Hoffmann Neopac AG | Drop-dispensing insert and container with a drop-dispensing insert |
EP3034428A1 (en) * | 2014-12-19 | 2016-06-22 | SHB GmbH | Dosing cap for a dosing bottle |
US10336511B2 (en) | 2014-12-19 | 2019-07-02 | Shb Gmbh | Dosing cap for a dosing bottle |
DE102017115779A1 (en) | 2017-07-13 | 2019-01-17 | Gerresheimer Regensburg Gmbh | Injection molding tool for producing an injection molded part and method for producing an injection molded part |
US20220281666A1 (en) * | 2021-03-02 | 2022-09-08 | Kolmar Korea Co., Ltd. | Container |
US11827437B2 (en) * | 2021-03-02 | 2023-11-28 | Kolmar Korea Co., Ltd. | Container |
Also Published As
Publication number | Publication date |
---|---|
AU2003202757A1 (en) | 2004-08-30 |
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