EP2828002B1 - Dispositif de distribution de liquide muni d'un capuchon amovible - Google Patents

Dispositif de distribution de liquide muni d'un capuchon amovible Download PDF

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Publication number
EP2828002B1
EP2828002B1 EP13715328.4A EP13715328A EP2828002B1 EP 2828002 B1 EP2828002 B1 EP 2828002B1 EP 13715328 A EP13715328 A EP 13715328A EP 2828002 B1 EP2828002 B1 EP 2828002B1
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EP
European Patent Office
Prior art keywords
liquid
cap
buffer
expulsion
configuration
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.)
Active
Application number
EP13715328.4A
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German (de)
English (en)
French (fr)
Other versions
EP2828002A1 (fr
Inventor
Gaëtan Painchaud
Thierry Decock
Guillaume Grevin
Xavier Julia
Benjamin QUAGLIA
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.)
Nemera la Verpilliere SAS
Original Assignee
Nemera la Verpilliere SAS
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Publication of EP2828002A1 publication Critical patent/EP2828002A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0027—Means for neutralising the actuation of the sprayer ; Means for preventing access to the sprayer actuation means
    • B05B11/0032—Manually actuated means located downstream the discharge nozzle for closing or covering it, e.g. shutters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/04—Deformable containers producing the flow, e.g. squeeze bottles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B05B15/52—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles
    • 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
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/24—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with auxiliary devices
    • B65D35/36—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with auxiliary devices for applying contents to surfaces
    • 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
    • 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
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
    • B65D47/2056—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type
    • B65D47/2081—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type in which the deformation raises or lowers the valve port
    • 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 or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • 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 or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/34—Cleaning or preventing clogging of the discharge passage
    • 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 or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/40—Closure caps
    • 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 or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/56—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant with means for preventing delivery, e.g. shut-off when inverted
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0064—Lift valves
    • B05B11/0067—Lift valves having a valve seat located downstream the valve element (take precedence)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/007—Outlet valves actuated by the pressure of the fluid to be sprayed being opened by deformation of a sealing element made of resiliently deformable material, e.g. flaps, skirts, duck-bill valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0072—A valve member forming part of an outlet opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/40—Filters located upstream of the spraying outlets

Definitions

  • the present invention relates to the technical field of liquid distribution.
  • it relates to the field of liquid distribution in the form of drops or in the form of a spray, such as ophthalmic, nasal, oral or auricular fluid.
  • Document is known FR 2,937,018 a liquid dispensing device comprising a bottle and a dispensing tip. This tip comprises a liquid dispensing opening.
  • the residual liquid located near the dispensing opening may evaporate.
  • the concentration of active principle contained in the residual liquid is therefore greater and the active ingredient can finally be deposited near the opening, forming a precipitate.
  • the quantity of active ingredient delivered is therefore increased by this precipitate which is carried off during the delivery of the next drop.
  • the dose of active ingredient delivered is therefore greater than the prescribed dose. There is also a risk of administering solid particles that have not been dissolved in the next drop delivered.
  • the residual liquid located near the outlet can be contaminated by bacteria that can contaminate the next drop delivered. There is therefore also a risk of microbial contamination of the delivered liquid.
  • EP-1,541,487 discloses a liquid dispensing device according to the preamble of claim 1.
  • the document EP-1 466 668 discloses a liquid dispensing device comprising a cap having an opening for evaporation of residual liquid in the cap.
  • the present invention proposes in particular to provide a liquid dispensing device for delivering a more precise product dose.
  • the subject of the invention is a liquid dispensing device according to claim 1.
  • the shape expulsion located in the immediate vicinity and facing the liquid dispensing opening expels most of the residual liquid downstream of the dispensing opening, especially to the residual liquid absorption buffer disposed in proximity, c that is, the residual liquid is discharged to the absorption buffer. It is therefore understood that the buffer is disposed downstream of the dispensing opening. Thus, most of the residual liquid is drained out of the dispensing opening.
  • the expulsion form since the volume of the residual liquid present downstream of the dispensing opening is generally small, it is advantageous for the expulsion form to be positioned sufficiently close to and facing the dispensing opening when the cap is mounted on the device and can thus expel this small amount of liquid out of the liquid distribution opening.
  • the expulsion form is integral with the cap, generally after molding.
  • upstream and downstream are interpreted by taking the direction of distribution of the liquid as a reference direction.
  • Figures 1 and 2 a first embodiment of a liquid dispensing device 10, respectively in hermetic sealing configuration and in ventilation configuration.
  • the device 10 is a device for dispensing liquid in the form of drops.
  • the device 10 comprises a deformable reservoir 12 and a dispensing nozzle 14 capped with a removable cap 16.
  • the tip 14, provided with the cap 16 is intended to be mounted by screwing on the neck of a reservoir 12.
  • This reservoir 12 is a liquid storage tank, for example pharmaceutical liquid such as ophthalmic fluid.
  • the reservoir 12 is deformable, so as to distribute liquid by pressing the reservoir. More specifically, the liquid distribution is done by pressure, from a user, on the body of the reservoir 12, the latter may have a certain elasticity to resume its original shape after the pressure exerted by the user, which generates a depression inside the tank 12.
  • the tip 14 and the cap 16 advantageously form an assembly which can be attached in one step to the neck of the reservoir 12.
  • the dispensing nozzle 14 comprises a support 18, a dispensing valve 20 and means 24 for returning the valve 20 against the support 18 in the liquid-locking position, here composed of an elastic washer 24, made of plastic.
  • the valve 20 includes a dispensing opening having a dispensing opening or opening 22 and drop forming means 50.
  • the valve 20 may also assume a liquid release position.
  • the liquid distribution orifice 22 is carried by the valve 20.
  • the tip 14 also comprises an upper envelope 26, comprising an orifice 28 through which the valve 20 passes, a channel 30 for passing the liquid from the reservoir 12 to the dispensing orifice 22, and a channel 32 for the passage of air through the reservoir 12, channel 32 closed by an assembly 34 comprising an air diffusion member 36 disposed in an insulation casing 38 of the diffusion member 36. It will be noted that the air passage channel 32 is entirely molded into the support 18.
  • the casing 38 comprises several elements making it possible to guarantee the insulation with respect to the liquid contained in the reservoir 12 of the air-permeable member 36.
  • This envelope 38 comprises in particular a hydrophobic filter 40 whose function is to prevent the liquid contained in the reservoir 12 to come into contact with the member 36. This prevents any sorption of molecules of the active ingredient on the air diffusion member 36.
  • this member 36 makes it possible to compensate for the depression generated by the delivery of a drop of liquid by the user by allowing the air molecules to pass, by diffusion, through the dense material of this diffusion member. air 36, the bacteria or dust can not pass through the air diffuser member 36. There is therefore a member for the passage of uncontaminated air from the outside to the inside of the tank 12 and not presenting a problem of clogging.
  • this insulation envelope 38 may comprise grooves delimiting with the support 18 at least one channel of liquid passage which also plays a flow limitation function.
  • This cap 16 comprises an outer casing 42 and an inner casing 44. These casings 42, 44 are coaxial, integral with each other by being mounted movable relative to each other in rotation and translation. longitudinal, between the hermetic closure configuration of the device, visible on the figure 1 , and the ventilation configuration of the device 10, visible on the figure 2 .
  • the inner casing 44 further comprises a form 46 for expelling the residual liquid. This form of expulsion 46 is located in the immediate vicinity and facing the dispensing opening.
  • the expulsion form 46 is also, in this example, a form of immobilization of the valve 20 in the liquid blocking position when the cap 16 is mounted on the device 10.
  • the expulsion form 46 is a pin whose general shape is complementary to the drop forming means 50 made in the valve 20, for example the shape 46 is frustoconical.
  • the shape 46 ensures immobilization of the valve 20 by pinching the latter against the support 18.
  • the cap 16 comprises a residual liquid absorption pad 48, fixed on the cap 16 and more particularly on the inner casing 44.
  • the pad 48 is substantially annular in shape and is arranged around the expulsion form 46 of the residual liquid.
  • the section of the ring of the stamp 48 is of substantially rectangular shape.
  • One of the corners of the inner face of the buffer 48 is bevelled and complementary to the shape of the valve 20.
  • the two corners of the inner face are beveled, the buffer 48 can be fixed on the inner casing 44 of the cap indifferently in one direction or the other.
  • the inner casing 44 also has stops 54 for fixing the buffer 48 to the inner casing 44.
  • the buffer 48 may not be in contact with the valve and this to avoid contact between the residual liquid present in the buffer and the valve 20 when the cap 16 is mounted on the device 10.
  • the absorption buffer 48 advantageously comprises a hydrophilic material with open porosity.
  • the expulsion shape 46 defines at least partially, in this case with the means 50 of droplet formation of the valve 20, a path 52 of discharge, to the buffer 48, residual liquid disposed downstream of the valve 20.
  • the escape route 52 is formed by a groove 92, or recess, made in the form 46.
  • the shape 46 comprises several channels, for example four , regularly distributed over the end of the pin 46, delimited on the one hand by the grooves 92, on the other hand by the means 50 for forming drops, these channels being formed when the cap 16 is mounted on the device, the shape 46 being then in abutment against the valve 20.
  • the inner casing 44 comprising a bottom 56, in the form of expulsion 46 in the center of its inner surface, and a skirt 58, of substantially cylindrical shape.
  • the bottom 56 is delimited by a frustoconical surface 60 and comprises, on its horizontal wall, orifices 62 for the passage of air, of which there are four in this example.
  • the inner casing 44 further comprises means 64, 66, 68 for locking the device 10 in ventilation configuration.
  • These locking means comprise, in this embodiment, notches 64, elastic tabs 66, and ramps 68, in this case two notches 64, two tabs 66 and two ramps 68.
  • the cylindrical skirt 58 comprises stops 70 , in this case two, extending in a longitudinal plane so as to form a stop in the transverse direction for the outer casing 42, and thus allow the cap 16 to be screwed onto the dispensing nozzle 14.
  • the cylindrical skirt 58 further comprises stops 72, said longitudinal retaining stops, so as to form a stop in the longitudinal direction, for the retention of the outer casing 42 on the inner casing 44 in the longitudinal direction.
  • the longitudinal retaining stops 72 extend mainly in a transverse oblique plane and also comprise a horizontal part.
  • the cylindrical skirt 58 carries on its free end a frangible ring 74 of the device 10, first opening indicator, to ensure that the device has not been used before its first use.
  • the outer casing 42 which comprises a bottom 76 and a skirt 78, of substantially cylindrical shape.
  • the bottom 76 is circular in shape and substantially planar. It comprises a ring 80, protruding from the inner surface, and air passage holes 82 located outside the ring 80. It also comprises means 84, 86 for locking the device 10 in ventilation configuration, which in this embodiment comprises two notches 84 and two screw abutments 86.
  • the outer casing 42 further comprises stops 88, said longitudinal retaining stops, extending in a transverse plane, so as to form a stop in The direction longitudinal for the retention of the outer casing 42 on the inner casing 44 in the longitudinal direction.
  • the figure 2 represents the device 10 in the ventilation configuration, in which an evaporation path of the residual liquid, represented by the arrow 90, is open between the buffer 48 and the outside of the device 10.
  • the pad 48 is fixed inside the inner casing 44, around the expulsion form 46 of the valve, by blocking it with the fixing stops 54.
  • the outer casing 42 is then mounted on the inner casing 44 by positioning the screw stops 70 of the inner casing 44 along the screw abutments 86 of the outer casing 42, so that the stops 86 are positioned. opposite the bottom of the ramps 68, and that the longitudinal retaining stops 72 of the inner casing 44 cooperate with the longitudinal retaining stops 88 of the outer casing 42, as can be seen in FIGS. Figures 5A and 5B .
  • the outer casing 42 can no longer be detached from the inner casing 44.
  • the cap 16 is ready to be mounted by screwing on the dispensing nozzle 14.
  • the reservoir 12 filled with the liquid to be dispensed, it comes to screw the assembly formed by the nozzle 14 and the cap 16 on the neck of the reservoir.
  • the device 10 is ready to be used.
  • This first configuration called the storage configuration or hermetic closure of the device 10 is represented on the figures 1 , 5A and 5B .
  • the outer casing 42 in wire mode to present the interaction between the elements of the inner casing 44 with the elements of the outer casing 42.
  • the ring 80 of the outer casing 42 cooperates with the frustoconical surface 60 of the inner casing 44, so that there is no possible communication between the pad 48 and the outside of the device 10 , as can be seen on the figure 1 .
  • the ring 80 thus forms, with the surface 60, a closure means of the evaporation path 90.
  • the ring 80 is slightly deformed and a mechanical sealing of the ring 80 on the conical surface 60 is achieved.
  • the evaporation path 90 of the residual liquid is thus closed.
  • this evaporation is also limited by the mechanical clamping between the inner envelope 44 and the support 18 which define a closed volume in which there is no renewal of air as the device is in storage configuration.
  • this evaporation is also limited because the air diffusion member 36 does not substantially pass liquid molecule, even in the form of steam, to this closed volume.
  • expulsion form 46 of the inner casing 44 cooperates with the valve 20, more particularly with the drop forming means 50, and thus blocks the valve 20 in the liquid blocking position.
  • the user unscrews the removable cap 16. He tightens the outer envelope 42 in one hand and the reservoir 12 in the other hand. It rotates the outer casing 42 relative to the inner casing 44.
  • the stops 86 are then guided by the ramps 68 and the rotational movement applied by the user to the device 10 generates a longitudinal translational movement of the casing outer 42 relative to the inner casing 44. Arrived at the end of the ramps 68, the stops 86 cooperate with the notches 64 to form first locking means of the device 10 in ventilation configuration.
  • the notches 84 of the outer casing 42 move relative to the elastic tabs 66, which they force, at the end of rotation, by deformation of the tabs 66, so that the notches 84 are are found in abutment against the end of the tabs 66.
  • the notches 84 and the tabs 66 thus form second locking means of the device 10 in ventilation configuration.
  • the valve 20 moves from the liquid lock position to the liquid release position, a drop is formed in the drop forming means 50.
  • the drop reaches a predetermined volume, is released from the valve 20, for example to go into the eye of the user.
  • valve 20 resumes its liquid blocking position.
  • the user wishes to deliver an additional drop, it deforms the reservoir 12 again until delivery of the drop.
  • the locking means 64, 66, 84, 86 prevent the displacement of the outer casing 42 with respect to the inner casing 44. It is therefore understood that that it is possible to go from the hermetic sealing configuration of the device 10 to the ventilation configuration but that the opposite is not possible. Thus, it is ensured that once the device 10 has been used at least once, the evaporation path 90 of the residual liquid is always open.
  • the locking means 64, 66, 84, 86 are therefore permanent and non-removable.
  • the expulsion form 46 of the valve cooperates with the valve 20.
  • this expulsion form 46 has grooves 92 which define with the valve 20 a channel of the valve. evacuation 52 of the residual liquid contained in the drop-forming means 50. This channel 52 makes it possible to evacuate the residual liquid to the buffer 48, in which it is absorbed.
  • the liquid absorbed by the buffer 48 evaporates out of the device 10 by the evaporation path 90 open between the buffer 48 and the outside of the device 10.
  • the outer casing 42 comprises pins 94 forming the means for closing off the evaporation path 90 of the residual liquid absorbed by the buffer 48.
  • the pins 94 cooperate with the air passage holes 62 of the inner envelope 44, so that there is no possible communication between the buffer 48 and the outside of the device 10 .
  • the locking means do not allow the device to take the hermetic closure configuration.
  • the third embodiment presented on the Figures 8 and 9 , is similar to the first embodiment, apart from the location of the buffer 48.
  • the buffer 48 is not mounted on the inner casing 44 of the cap 16 but is fixed on the upper casing 26
  • the operating mode of this device is similar to the previously described operating mode.
  • the fourth embodiment presented on the Figures 10 and 11 , comprises a dispensing nozzle 14 similar to the previously described tips. It differs from the previous embodiments in that the cap 16 has only one envelope having air passages 62. The rest of the device 10 is in accordance with what has been described above.
  • the device 10 Before first use, that is to say in hermetic sealing configuration, the device 10 comprises a cap 96 which closes the air passage holes 62 of the cap 16; it therefore closes the evaporation path 90 of the residual liquid between the buffer 48 and the outside of the device 10.
  • this seal 96 also comprises a tab 98 adhering to the cap 16 and the support 18 of the nozzle 14 so that it is not possible to unscrew the cap 16 of the device 10 without removing the cap 96 and thus open the evaporation path 90 between the buffer 48 and the outside of the device 10.
  • the buffer 48 comprises two separate absorbent materials 48A and 48B, the absorbent material 48A being more hydrophilic, therefore more absorbent, than the absorbent material 48B .
  • the two separate absorbent materials each have an axisymmetric shape, in this case a ring shape.
  • the two rings 48A, 48B are arranged one above the other, in contact with each other, the ring of the most hydrophilic material 48A being positioned downstream and the ring made of the least hydrophilic 48B being positioned upstream with respect to the direction of distribution of the liquid.
  • the liquid that is expelled by the expulsion form 46 to the buffer 48 is preferentially absorbed by the more absorbent hydrophilic material 48A. Due to the contact between the two hydrophilic materials 48A, 48B, the liquid absorbed by the least hydrophilic material 48B is sucked by the most hydrophilic material 48A. The residual liquid thus stagnates little or nothing in the least hydrophilic material 48B which is closest to the drop-forming means 50. The risk of a possible accumulation of liquid in the vicinity of the drop-forming means 50 is thus reduced. .
  • the less absorbent and therefore the least hydrophilic material 48B may advantageously comprise a hydrophobic material.
  • the material 48B is hydrophobic and absorbent and it passes the liquid located upstream of the dispensing opening 22 to the most hydrophilic material 48A and this, thanks to the suction created by the material 48A, the most hydrophilic and downstream of the least hydrophilic material with respect to the drop forming means 50.
  • the material 48B is hydrophobic, the liquid absorbed in the material 48B can not return to the dispensing opening 22.
  • the dispensing opening 22 is therefore relatively dry. It is understood that the porosity of the hydrophobic material 48B is such that it allows the liquid sucked by the more hydrophilic material 48A to pass through the hydrophobic material 48B.
  • the most hydrophilic material 48A may comprise an agent An antimicrobial agent, such as silver ions (Ag + ) and the least hydrophilic or even hydrophobic material, 48B may not include an antimicrobial agent.
  • An antimicrobial agent such as silver ions (Ag + )
  • the least hydrophilic or even hydrophobic material, 48B may not include an antimicrobial agent.
  • the liquid is sucked toward the more hydrophilic material 48A where antimicrobial agents prevent the growth of bacteria.
  • the risk that antimicrobial agents may be contained with the next drop of liquid delivered by the device 10 is reduced because the antibacterial agent is not included in the least hydrophilic material 48B which is the closest to the droplet forming means. 50.
  • the figure 13 presents a sixth embodiment of the device 10, wherein the expulsion form 46 is made of absorbent material.
  • the operating principle of the device 10 is similar to the principle described in the fifth embodiment.
  • the expulsion form 46 comprises an absorbent material that is less hydrophilic than the hydrophilic material of the pad 48.
  • the residual liquid in the droplet forming means 50 after dispensing a drop of liquid is absorbed. by the absorbent material of the expulsion form 46 and is then sucked by the hydrophilic material of the pad 48. The liquid is thus drained to the pad 48 through the absorbent material of the expulsion form 46.
  • the most hydrophilic material i.e. the material of the tampon 48
  • the material of the tampon 48 may comprise an antimicrobial agent, such as silver ions (Ag +) and the least hydrophilic material, that is, the material of the expulsion form 46 located downstream from the material of the pad 48 may not include an antimicrobial agent.
  • the material of the expulsion form may comprise a hydrophobic material.
  • the hydrophobic material may for example be obtained by a surface treatment applied locally to the expulsion form.
  • the device 10 does not comprise an envelope 38 for isolating the air diffusion member 36 with respect to the liquid contained in the reservoir 12.
  • the device 10 could include such an envelope 38.
  • the device may comprise a buffer 48 and an expulsion form 46 both made of absorbent material, a hydrophobic web 110 with open porosity being attached to the pad 48 and the expulsion form 46. Thanks to this hydrophobic web 110 with open porosity, the liquid present in the drop forming means 50 is sucked through the veil by the expulsion form 46 and, the veil being hydrophobic, the liquid absorbed by the expulsion form 46 and the tampon 48 do not so not go back to the dispensing orifice 22.
  • the web 110 may for example be reported by partial bonding or partial welding of the web on the pad 48 and / or the expulsion form 46.
  • the figure 14 has a buffer 48 and an expulsion form 46 according to a seventh embodiment of the device 10.
  • the expulsion form 46 is made of absorbent material.
  • the pad 48 comprises a contact surface 106 with the ambient air, the surface having at least one relief 108 in the form of a vertical and central recess of the pad 48, to increase the surface area of the pad. contact with the ambient air without modifying the bulk volume of the buffer. This relief 108 may also be present on the expulsion form 46, as can be seen on the figure 14 .
  • the device comprises a nozzle 100 for distributing liquid in the form of a spray, intended to be mounted on a pump.
  • This tip 100 comprises a casing 102 opening at its downstream end on an opening 104 of liquid distribution.
  • the tip 100 may comprise a dispensing valve, for example taking the form of a needle mounted slidably in the casing 102 and closing the opening 104 under the action of a spring.
  • the envelope 102 is capped with a cap 16 having a form of expulsion 46 of the residual liquid that may be downstream of the dispensing opening 104. It can be seen that this form of expulsion 46 is located in the immediate vicinity and look at the opening 104.
  • the cap also includes air passages 62 and a pad 48 attached to the cap 16, more precisely within the cap 16, around the expulsion form 46.
  • the hermetic sealing configuration of the device 100 can be obtained by adding a removable, preferably disposable lid, attached to the cap 16.
  • the pad 48 can be fixed by ultrasonic welding, by mechanical clamping or by any other suitable means, that the cap 16 can take other configurations to associate a buffer with a cap ensuring a residual liquid expulsion or still making it possible to ensure a permanent configuration of evaporation, as well as a hermetic sealing configuration for storing the device before its first use, or else that the return means of the valve 20 can comprise a helical spring.
  • the first seven embodiments described in the figures relate to liquid delivery devices in the form of drops and provided with a valve, in which the expulsion form constitutes a form of immobilization of the valve in a position of blocking.
  • liquid dispensing devices in another form, for example in the form of a spray, such as the device according to the eighth embodiment, or in the form of a jet, with or without a valve, or still without immobilization of the valve, while maintaining the possibility of draining the residual liquid out of the dispensing opening, thanks to the presence of the absorption buffer and the expulsion form located in the vicinity and with respect to the liquid dispensing opening.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
EP13715328.4A 2012-03-19 2013-03-15 Dispositif de distribution de liquide muni d'un capuchon amovible Active EP2828002B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1252435A FR2988015B1 (fr) 2012-03-19 2012-03-19 Dispositif de distribution de liquide muni d'un capuchon amovible
FR1261187A FR2988016B1 (fr) 2012-03-19 2012-11-23 Dispositif de distribution de liquide muni d'un capuchon amovible
PCT/FR2013/050545 WO2013140069A1 (fr) 2012-03-19 2013-03-15 Dispositif de distribution de liquide muni d'un capuchon amovible

Publications (2)

Publication Number Publication Date
EP2828002A1 EP2828002A1 (fr) 2015-01-28
EP2828002B1 true EP2828002B1 (fr) 2019-08-28

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ID=48083214

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EP13715328.4A Active EP2828002B1 (fr) 2012-03-19 2013-03-15 Dispositif de distribution de liquide muni d'un capuchon amovible

Country Status (10)

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US (1) US9592934B2 (es)
EP (1) EP2828002B1 (es)
JP (1) JP6130486B2 (es)
KR (1) KR102052228B1 (es)
CN (1) CN104203426B (es)
BR (1) BR112014022359B1 (es)
FR (2) FR2988015B1 (es)
IN (1) IN2014DN08605A (es)
MX (1) MX369655B (es)
WO (1) WO2013140069A1 (es)

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Also Published As

Publication number Publication date
BR112014022359A2 (es) 2017-08-22
CN104203426A (zh) 2014-12-10
BR112014022359B1 (pt) 2022-01-04
FR2988015B1 (fr) 2015-12-11
KR102052228B1 (ko) 2019-12-04
KR20150002670A (ko) 2015-01-07
US9592934B2 (en) 2017-03-14
CN104203426B (zh) 2017-03-08
MX2014011266A (es) 2015-03-09
JP6130486B2 (ja) 2017-05-17
FR2988016B1 (fr) 2017-05-12
IN2014DN08605A (es) 2015-05-22
JP2015519924A (ja) 2015-07-16
WO2013140069A1 (fr) 2013-09-26
FR2988016A1 (fr) 2013-09-20
EP2828002A1 (fr) 2015-01-28
FR2988015A1 (fr) 2013-09-20
MX369655B (es) 2019-11-15
US20150043958A1 (en) 2015-02-12

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