EP1068136A1 - Valve doseuse - Google Patents
Valve doseuseInfo
- Publication number
- EP1068136A1 EP1068136A1 EP99910428A EP99910428A EP1068136A1 EP 1068136 A1 EP1068136 A1 EP 1068136A1 EP 99910428 A EP99910428 A EP 99910428A EP 99910428 A EP99910428 A EP 99910428A EP 1068136 A1 EP1068136 A1 EP 1068136A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- metering
- product
- metering valve
- deposition
- 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.)
- Withdrawn
Links
- 239000000463 material Substances 0.000 claims abstract description 23
- 239000000825 pharmaceutical preparation Substances 0.000 claims abstract description 4
- 229940127557 pharmaceutical product Drugs 0.000 claims abstract description 4
- 230000008021 deposition Effects 0.000 claims description 16
- 239000003380 propellant Substances 0.000 claims description 11
- 229920002313 fluoropolymer Polymers 0.000 claims description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 10
- 239000004811 fluoropolymer Substances 0.000 claims description 9
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 239000000443 aerosol Substances 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 239000000047 product Substances 0.000 description 23
- 239000007789 gas Substances 0.000 description 10
- 239000004812 Fluorinated ethylene propylene Substances 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 229920009441 perflouroethylene propylene Polymers 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
- B65D83/44—Valves specially adapted for the discharge of contents; Regulating devices
- B65D83/52—Metering valves; Metering devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K25/00—Details relating to contact between valve members and seats
- F16K25/005—Particular materials for seats or closure elements
Definitions
- valve stem which slides in the valve body is pressed against the annular seals to its actuating position, in which a dose of the product is expelled. This spring then returns the valve stem to its rest position.
- Dosing valves of this type are notably described in documents EP-0 551 782, EP-0 350 376, FR-2 615 172, FR-2 615 173 and FR -2 615 124
- Document FR-2 740 527 discloses a metering valve in which, to avoid a risk of blockage of the valve stem in the sealing junction, the valve stem is made of a material comprising PTFE mixed with other materials
- a problem which arises with the metering valves concerns in particular the precision and the reproducibility of the dose expelled on each actuation. Indeed, according to the product to be dispensed, in particular when it is a pharmaceutical product, these two parameters can be crucial for the effectiveness of the treatment Or, the pressure generated in the valve by the propellant gas and / or the physicochemical properties of said propellant gas can cause phenomena of deposition, adhesion and / or sticking of the product on the different component parts of the metering valve Thus, the accuracy and reproducibility of the dose are not always guaranteed In addition, part of the product contained in the container may not be dispensed, which may limit the effectiveness of treatment and may be disadvantageous from a point of view economical If the product in question is expensive In addition, the deposition, adhesion and / or bonding of product on certain parts of the metering valve can considerably alter the operation and reliability of said metering valve (phenomenon known as sticking of the rod, which hangs) or the filling of the dosing chamber (blockage of
- Yet another object of the invention is to provide such a metering valve operating with a propellant gas which is less harmful to the environment.
- the subject of the invention is therefore a metering valve for dispensing a pharmaceutical product, comprising in particular a valve body, a metering chamber and a valve stem sliding in said metering chamber between a rest position and an actuation position, at least part of said metering valve being made of a material suitable for reducing the deposition, adhesion and / or sticking of the product on the valve.
- said metering chamber is made of a material suitable for reducing the deposition, adhesion and / or bonding of the product on said metering chamber, in particular on its walls.
- said valve stem is made of a material suitable for reducing the deposition, adhesion and / or bonding of the product on said valve stem
- all the components of the metering valve are made of materials suitable for reducing the deposition, adhesion and / or sticking of the product on the valve
- all the components of the metering valve include the same material suitable for reducing the deposition, adhesion and / or sticking of the product on the valve
- said material suitable for reducing the deposition, adhesion and / or bonding of the product comprises a fluorinated polymer
- said fluoropolymer comprises polytetrafluorethylene (PTFE).
- PTFE polytetrafluorethylene
- the present invention relates to a device for distributing a fluid product comprising an aerosol container containing the product and a propellant, and a metering valve produced according to the any one of the preceding claims, mounted on said receptacle for selectively distributing said product, said propellant gas being an HFA gas.
- FIG. 1 is a schematic sectional view of a valve metering device according to a particular embodiment, the valve stem being in its rest position
- - Figure 2 is a view similar to that of Figure 1, the valve stem being in its actuation position
- the valve stem 10 generally comprises a distribution channel 12 opening through a radial hole 13 on its outer surface In the resting position of the valve stem, said radial hole 13 opens out from the jomt of valve 3, while in said actuating position, it opens inside the metering chamber 2
- the valve stem 10 may further comprise a radial shoulder il which bears on the lower surface of the valve seal 3 in the rest position of the valve stem 10, and which therefore defines said rest position by acting as a stop member against the thrust of the spring 5.
- the valve stem 10 advantageously also comprises a duct 14, which, in the rest position of the valve stem, connects a reservoir or container of product (not shown) with the metering chamber 2 allowing the latter to be filled, while in the actuation position of the valve stem, it does not open into the metering chamber 2
- this metering valve is conventional.
- the user exerts pressure on the valve stem 10 which has the effect of displacing the latter against the force of the spring 5 out of its rest position
- the conduit 14 no longer opens into the metering 2 and this is then hermetically closed by the valve stem 10 at the chamber jomt 4 and the valve seal 3
- the valve stem 10 reaches its actuation position, the radial hole 13 of the stem valve opens into the metering chamber 2, allowing amsi the distribution of the dose of product contained in said metering chamber through the distribution channel 12.
- the user then releases his pressure on the valve stem 10 which is returned by the spring 5 to its rest position where the conduit 14 opens into the metering chamber 2, to fill the latter with a new dose of product
- the invention provides for making all or part of the metering valve in a material suitable for reducing, preferably preventing, the deposition, adhesion and / or sticking of the product.
- the metering chamber 2 in particular its walls, is made of such a material, but the other components of the metering valve, such as the valve stem 10 or the valve body 1 can also be made of such a material. .
- the invention makes it possible to produce a metering valve in which the metering chamber 2 is very precisely filled after each actuation of the valve and the majority, if not all, of the content of the metering chamber is expelled on each actuation of so the dose is very precise and reproducible.
- the fact that the product does not stick to the valve stem 10 and / or the seals 3 and 4 makes it possible to avoid problems of blocking by friction of said stem and therefore reduces the reliability of the valve.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Nozzles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9803926A FR2776741B1 (fr) | 1998-03-30 | 1998-03-30 | Valve doseuse amelioree |
| FR9803926 | 1998-03-30 | ||
| PCT/FR1999/000695 WO1999050156A1 (fr) | 1998-03-30 | 1999-03-25 | Valve doseuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1068136A1 true EP1068136A1 (fr) | 2001-01-17 |
Family
ID=9524655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99910428A Withdrawn EP1068136A1 (fr) | 1998-03-30 | 1999-03-25 | Valve doseuse |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1068136A1 (fr) |
| JP (1) | JP2002510023A (fr) |
| FR (1) | FR2776741B1 (fr) |
| WO (1) | WO1999050156A1 (fr) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2536876A1 (fr) | 2003-08-29 | 2005-03-17 | Glaxo Group Limited | Aerosol-doseur pharmaceutique et procedes associes |
| FR2888822B1 (fr) * | 2005-07-21 | 2010-04-02 | Valois Sas | Valve de distribution de produit fluide |
| US9554981B2 (en) | 2012-09-14 | 2017-01-31 | The Procter & Gamble Company | Aerosol antiperspirant compositions, products and methods |
| US9579265B2 (en) | 2014-03-13 | 2017-02-28 | The Procter & Gamble Company | Aerosol antiperspirant compositions, products and methods |
| US9662285B2 (en) | 2014-03-13 | 2017-05-30 | The Procter & Gamble Company | Aerosol antiperspirant compositions, products and methods |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2615172B1 (fr) | 1987-05-11 | 1989-08-18 | Valois | Valve aerosol doseuse utilisable en position inversee |
| FR2615124B1 (fr) | 1987-05-12 | 1989-11-24 | Valois | Valve aerosol doseuse a propulseur, utilisable en position inversee |
| FR2615173B1 (fr) | 1987-05-13 | 1989-08-18 | Valois | Valve doseuse pour liquide charge d'un propulseur liquide ou gaz liquefie, utilisable en position inversee |
| FR2634534B1 (fr) | 1988-07-04 | 1990-10-12 | Valois Sa | Valve doseuse pour aerosols |
| FR2670139B1 (fr) | 1992-01-15 | 1993-12-24 | Valois | Valve doseuse utilisable en position inversee. |
| JPH06220286A (ja) * | 1993-01-22 | 1994-08-09 | Mitsubishi Cable Ind Ltd | しゅう動材 |
| GB9517998D0 (en) * | 1995-09-04 | 1995-11-08 | Bioglan Lab Ltd | Compositions and device for their administration |
| FR2740527B1 (fr) * | 1995-10-31 | 1998-01-02 | Valois | Tige de soupape a faibles frottements |
| US5921447A (en) * | 1997-02-13 | 1999-07-13 | Glaxo Wellcome Inc. | Flow-through metered aerosol dispensing apparatus and method of use thereof |
| GB2332712A (en) * | 1997-07-29 | 1999-06-30 | Glaxo Group Ltd | Valve for aerosol container |
| GB2328932B (en) * | 1997-09-03 | 1999-10-13 | Bespak Plc | Improvements in or relating to metering valves for pressurised dispensing containers |
-
1998
- 1998-03-30 FR FR9803926A patent/FR2776741B1/fr not_active Expired - Lifetime
-
1999
- 1999-03-25 JP JP2000541076A patent/JP2002510023A/ja not_active Withdrawn
- 1999-03-25 EP EP99910428A patent/EP1068136A1/fr not_active Withdrawn
- 1999-03-25 WO PCT/FR1999/000695 patent/WO1999050156A1/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9950156A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002510023A (ja) | 2002-04-02 |
| FR2776741B1 (fr) | 2000-05-19 |
| FR2776741A1 (fr) | 1999-10-01 |
| WO1999050156A1 (fr) | 1999-10-07 |
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Legal Events
| Date | Code | Title | Description |
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| 17P | Request for examination filed |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 18D | Application deemed to be withdrawn |
Effective date: 20041202 |