EP4399032A1 - Distributeur de liquide - Google Patents

Distributeur de liquide

Info

Publication number
EP4399032A1
EP4399032A1 EP22782865.4A EP22782865A EP4399032A1 EP 4399032 A1 EP4399032 A1 EP 4399032A1 EP 22782865 A EP22782865 A EP 22782865A EP 4399032 A1 EP4399032 A1 EP 4399032A1
Authority
EP
European Patent Office
Prior art keywords
drop
liquid
housing
dispenser
pump chamber
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.)
Pending
Application number
EP22782865.4A
Other languages
German (de)
English (en)
Inventor
Jürgen Greiner-Perth
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.)
Aptar Radolfzell GmbH
Original Assignee
Aptar Radolfzell GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Aptar Radolfzell GmbH filed Critical Aptar Radolfzell GmbH
Publication of EP4399032A1 publication Critical patent/EP4399032A1/fr
Pending legal-status Critical Current

Links

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
    • B05B11/0005—Components or details
    • B05B11/0037—Containers
    • B05B11/0038—Inner container disposed in an outer shell or outer casing
    • 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
    • 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
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1015—Piston pumps actuated without substantial movement of the nozzle in the direction of the pressure stroke
    • 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

Definitions

  • the invention relates to a drop dispenser for dispensing a liquid drop by drop, in particular for dispensing a pharmaceutical liquid drop by drop.
  • a drop dispenser for dispensing a liquid drop by drop, in particular for dispensing a pharmaceutical liquid drop by drop.
  • Such a drop dispenser can be used, for example, for ophthalmic purposes.
  • a drop dispenser according to the invention like generic drop dispensers, has a liquid reservoir for storing the liquid before it is discharged, and a pumping device, by means of which liquid can be conveyed from the liquid reservoir to a discharge opening of the drop dispenser.
  • a drop formation geometry is assigned to the discharge opening, so that the liquid can collect at this drop formation geometry and, if the amount of liquid collected is sufficient, separate from the drop formation geometry as individual drops.
  • Drop dispensers of this type allow liquid to be discharged in a well-dosed manner.
  • the object of the invention is to provide a drip dispenser that can be carried safely and easily in everyday life and that is easy to use.
  • a drop dispenser of the generic type which has the described components of a liquid reservoir, a pump device and a discharge opening.
  • the liquid reservoir is preferably filled with a pharmaceutical liquid.
  • it can be a preservative-free liquid, with the dispenser being designed for use with such a preservative-free liquid in such a way that the entry of germs from the outside is effectively prevented, in particular by a securely closing discharge valve and/or by a ventilation channel that is provided with a sterile filter that removes at least 99.9% of germs from the incoming air.
  • the ventilation channel can also be provided with a ventilation valve.
  • the discharge opening is provided in the area of a droplet formation geometry that is suitable for the formation of individual droplets of an essentially reproducible size.
  • a droplet formation geometry that is suitable for the formation of individual droplets of an essentially reproducible size.
  • it can be a cup-shaped drop formation surface or a substantially planar drop formation surface surrounded by a tear-off edge.
  • the discharge opening and the drop formation geometry are preferably protected by a protective cap that can be slipped onto the housing.
  • the drop dispenser has a flat housing.
  • This flat housing contains the liquid reservoir and at least the essential part of the pumping device. All structurally significant parts of the dispenser that remain stationary relative to one another during operation are regarded as housings within the meaning of the invention.
  • a flat design is understood to mean a design in which a maximum width of the housing exceeds the maximum thickness of the housing by at least 25%, preferably by at least 50%, particularly preferably by 100% or more. It is therefore particularly preferred if the housing is twice as wide as it is thick. The length of the housing preferably exceeds the width, more preferably by at least 50%.
  • Such a flat housing is easy to take with you and is particularly suitable for being stowed in a trouser pocket. It is preferably a comparatively small dispenser with a width of preferably 3.6 cm or more, but particularly preferably less than 6 cm.
  • the thickness of the housing is preferably less than 1.8 cm, more preferably 1.5 cm or less.
  • the length of the housing is preferably at least 4 cm, but particularly preferably 5 cm or more. The length preferably does not exceed 10 cm and is particularly preferably 8 cm or less.
  • the main axis of a drop dispenser according to the invention extends from a storage base to the discharge opening and/or is defined by the alignment of the discharge opening or a central axis of the liquid storage.
  • a cross section of the housing relative to the viewing direction of the main axis is provided with an essentially elliptical cross section, at least in a partial area of preferably at least 40% of the length of the housing.
  • the cross section is not rectangular or rectangular with corners rounded in the shape of a quarter circle, but has a non-uniform radius of curvature corresponding to an ellipse and is larger in the area of a front side and a rear side compared to the short side surfaces.
  • This elliptical shape is of particular advantage in a compact dispenser according to the invention, since the back with a correspondingly gently rounded shape can rest securely on the index finger, the middle finger and the ring finger when an actuating surface arranged opposite on the front is pressed. This promotes the ability to position the drop dispenser well at the same time and then to be able to operate it safely and sensitively.
  • the compact external dimensions of the housing are preferably combined with a liquid reservoir that is nevertheless comparatively large.
  • the internal volume of the liquid reservoir is preferably at least 5 ml, more preferably at least 10 ml.
  • the internal volume of the liquid reservoir is preferably not more than 30 ml.
  • an internal volume of the liquid reservoir is preferably at least 50% of the volume enclosed by an outer contour of the drop dispenser with the protective cap possibly removed, preferably at least 60%.
  • preferably at least half of the volume of the drop dispenser is formed by the internal volume of the liquid reservoir.
  • the volume enclosed by the outer contour of the dropper without a cap is preferably between 10 cm 3 and 60 cm 3 , in particular between 15 cm 3 and 30 cm 3 .
  • This aspect of the invention relating to the ratio of internal volume and external volume can also be advantageous without the described flat design, with the further sub-aspects described in this description of the dispenser also being able to be additionally provided with such a dispenser without a flat design.
  • the liquid reservoir extends in the direction of the main axis into the area of the pumping device, so that the pumping device, in particular its Pump chamber, located at the same level as the liquid reservoir.
  • the liquid reservoir can have a partial section of the internal volume of the liquid reservoir on the left and right side of the pump chamber, based on the width of the housing.
  • the overlapping of the pump chamber with the liquid reservoir also makes it very easy to achieve a very wide inlet into the pump chamber, which helps prevent air from collecting here that could cause liquid to be sucked in could disturb the pumping device.
  • the inlet between the liquid reservoir and the pumping chamber is preferably not less than 2 mm 2 at the narrowest point.
  • the discharge takes place by means of the pump device already mentioned. This is provided within the housing and is actuated by means of a depressible and preferably pivotable actuating handle. If the drop dispenser has a protective cap, this is preferably adapted in such a way that when it is in place it covers the actuating handle or otherwise prevents unwanted actuation of the actuating handle.
  • the operating handle can be provided on a side surface spanning the thickness of the dispenser. This design can be advantageous with regard to the design of the pump device, since the pump device can then be configured very simply with a piston that can be moved in the transverse direction, with a comparatively large piston stroke being possible.
  • the operating handle is provided on a front side of the housing that spans the width, in particular in a central arrangement.
  • an operating handle provided here can be comparatively large and thus permit pleasant and well-dosed actuation.
  • the operating handle is preferably arranged in a width-centric arrangement on the front side. In relation to the width, the operating handle preferably takes up more than half of the available space on the front.
  • the width of the actuating handle is particularly preferably at least 20 mm, in particular at least 25 mm.
  • the protective cap can cover the actuating handle in a protective manner and is preferably also sufficiently stiff to prevent unintentional actuation of the actuating handle when the protective cap is in place.
  • the actuating handle preferably acts on a pump device with a piston unit that can be moved orthogonally to the main axis and to the width. Due to the thin construction, the space for such a pumping device and in particular its pump stroke is very limited here. However, the low output quantity per actuation of preferably between 5 pl and 30 pl allows the arrangement of a suitable pump despite the flat design.
  • the piston unit can be a piston unit with a piston sliding on a cylinder surface. Due to the small amount of installation space available, however, a piston unit as a membrane part that is at least partially made of an elastically deformable material is advantageous.
  • a peripheral edge of the membrane part is attached to a pump chamber component, so that in particular central area can be pressed under the action of the actuating handle to the opposite rear side.
  • the pump device preferably has an inlet valve and an outlet valve, in particular in the form of valves that open as a function of pressure.
  • the respective ducts, the inlet duct and the outlet duct, are preferably provided on the inside of the rear of the housing.
  • the piston unit preferably has an elastically deformable compensating section, by means of which the connection to the actuating handle is formed, so that the pivoting movement of the actuating handle can be converted into a translational movement of the piston.
  • the actuation handle itself can be moved either purely in translation or can be pivoted relative to the housing. It preferably stands out in terms of color from the housing, in particular from a surrounding housing shell.
  • the actuating handle can be formed by a single component which is connected to a housing part via a multi-part hinge or a film hinge.
  • a design with a multi-part actuating handle is also possible.
  • An outer part can be provided here, which can be designed in particular from an aesthetic point of view, and an inner part, which can be used in particular for coupling to a piston unit and is designed in particular from a technical point of view. If the actuating handle is designed in multiple parts, the outer part can be connected in one piece to a housing part and/or the inner part can be connected to the housing by a multi-part hinge.
  • the pumping device has a pumping chamber which is delimited at least in sections by a pumping chamber component.
  • This pump chamber component which preferably also at least partially defines an inlet from the liquid reservoir and a channel between the pump chamber and discharge opening, is designed in one piece with a reservoir wall component which at least for the most part forms a delimiting wall of the liquid reservoir.
  • This common one-piece component thus represents the main component of the dispenser and in particular ensures a complete seal between the wall and the pump chamber component.
  • a one-piece design facilitates the ideal use of the interior of the housing as a liquid storage.
  • This aspect of the one-piece pump chamber and reservoir component can also be advantageous without the flat design described, with the further sub-aspects described in this description of the dispenser also being able to be additionally provided in such a dispenser without a flat design.
  • the drop dispenser particularly when configured with a one-piece pumping chamber and storage component of the type described, has a separate housing shell which is pushed onto the pumping chamber component, particularly from the side of the discharge opening.
  • the housing shell can in particular have an opening for the discharge opening, it being preferred if the discharge opening is not formed directly by the housing shell but rather by the pump chamber and storage component protruding through the opening or by another separate housing component. In this way, a design can be achieved in which the separate housing shell does not come into liquid contact, as intended, so that, for example, no relevant conditions have to be met when selecting the material.
  • the actuating handle is designed in one piece with a housing part, it can in particular be the housing shell mentioned, to which the actuating handle is pivotably articulated by means of a film hinge.
  • the actuating handle can be designed to be pivotable by means of a multi-part hinge.
  • a housing-side hinge section is preferably provided on an outside of the pump chamber component, in particular below the described housing shell.
  • An intermediate space between an outside of the pump chamber component and an inside of the housing shell can assume additional functions.
  • a restoring spring for restoring the actuating handle can be arranged here, in particular in a position offset relative to the pump chamber.
  • the gap can be used to provide a ventilation channel here.
  • This can in particular be a channel which is peripherally delimited at least in a partial section by the pump chamber component and the housing shell.
  • a design can be advantageous in which a groove is provided on an outside of the pump chamber component, which groove is closed by the inside of the housing shell to form a ventilation channel, in particular a capillary channel, so that a channel is formed.
  • the pumping device has a pumping chamber which is delimited at least in sections by a pumping chamber component and that the liquid storage rather it is delimited by a wall which is formed at least for the most part by a storage wall component, preferably by one of two storage chamber components.
  • the pump chamber component and the at least one storage wall component are formed by at least two separate components, in the case of two storage wall components by three separate components.
  • this makes it possible to use a pump chamber component which is used in different dispensers in the same way, while the storage wall component or components is or are specially adapted to the desired flat shape of the dispenser.
  • the pump chamber component can be formed by a component with a rotationally symmetrical outer contour at least in sections and in particular in the region of the pump chamber in relation to the cross section, so that free spaces on both sides that lie opposite one another remain between an inside of the flat housing and the outer contour of the pump chamber component.
  • Such a pump chamber component with an outer contour that is rotationally symmetrical in cross section can therefore also be used in classic dispensers with an approximately rotationally symmetrical outer housing. If it is used in a flat dispenser according to the invention, the free spaces mentioned arise.
  • the pump chamber component and at least one or one storage wall component preferably have contours that engage in one another, in particular contours that engage in one another in a form-fitting manner in the area of a liquid connection.
  • the two components are therefore connected directly to one another, with a circumferentially liquid-tight connection preferably being involved, so that the liquid path from the reservoir to the pump chamber is thereby created.
  • a separate accumulator floor can also be provided, which is tightly connected to the accumulator wall component.
  • the reservoir base which is elongated due to the shape of the housing, closes off the liquid reservoir on the base side.
  • the storage base can represent a closure that is attached to the storage component after the liquid storage has been filled.
  • the storage base is preferably firmly connected to the storage component before filling, in particular by welding or gluing.
  • the storage floor can be used for a ventilation channel instead of the pump chamber component.
  • a construction can also be advantageous in which the storage wall component and the pump chamber component as separate components are formed and connected to each other circumferentially, again preferably by means of an adhesive bond or a welded joint.
  • a separate storage floor component is not necessary with such a design.
  • the base can therefore form the storage wall component in one piece with the surrounding wall.
  • the storage wall component has a filling opening on the bottom opposite the pump chamber component.
  • This preferably round filling opening remains open during manufacture of the dispenser and is only closed after the liquid reservoir has been filled, preferably by means of a closure element which snaps onto the edge of the filling opening.
  • the reservoir wall component which at least partially surrounds the liquid reservoir, is preferably made from an at least partially transparent plastic material.
  • the storage wall component can have uniform material properties, so that all walls formed thereby are translucent. Both crystal-clear and milky designs as well as a white or other coloring are possible. The transparency makes it easy to see the fill level in the liquid reservoir.
  • the housing shell described above can enable a housing design that is opaque there above the liquid reservoir.
  • Polypropylene (PP), cycloolefin copolymer (COC), cycloolefin polymer (COP) or polyethylene terephthalate (PET) are particularly suitable as the material for the storage component or the one-piece pump chamber and storage component.
  • PP polypropylene
  • COC cycloolefin copolymer
  • COP cycloolefin polymer
  • PET polyethylene terephthalate
  • a dispenser according to the invention preferably has, in addition to the valves of the pump device, an outlet valve upstream of the discharge opening. This prevents germs from entering. It is preferably pressed in its closing direction by means of a closing spring and opens when the liquid pressure is sufficiently high.
  • a comparatively large pressure-effective valve surface of in particular at least 50 mm 2 is preferably provided in order to be able to use a comparatively strong closing spring and still be able to open the valve for dispensing liquid with low liquid pressure.
  • the outlet valve is designed to at to open a liquid pressure of less than 1000 mbar, particularly preferably at one
  • FIG. 1 shows a first exemplary embodiment of a drop dispenser according to the invention in an overall view.
  • FIG. 2A and 2B show the drip dispenser of FIG. 1 in two sectional views.
  • Fig. 3 illustrates the construction of the drip dispenser of FIG. 1 from individual housing parts.
  • 4A and 4B show a one-piece pump chamber and storage wall component in an uncut and a sectional view.
  • 5A and 5B show a second embodiment of a drop dispenser according to the invention in two sectional views.
  • FIGS. 6 and 7 show a third embodiment of a drip dispenser according to the invention with the protective cap removed and put on.
  • FIG. 8 and 9 show a fourth embodiment of a drip dispenser according to the invention.
  • 1 to 4B show a first embodiment of a drip dispenser according to the invention.
  • FIG. 1 shows the drop dispenser 10 in its entirety, with a protective cap 90 being indicated by a dotted representation.
  • the drip dispenser 10 has a housing 12 . This has a length 5 in the direction of a main axis 2, which is about 8 cm. A width 4 of the housing 12 is about 4 cm. The thick 3 of the case is 1.8 cm. In Fig. 1, the housing 12 surrounds a liquid reservoir 14 and a pumping device 40, which cannot be removed.
  • a pivotable actuating handle 24 is provided on a front side 12A of the housing 12 for actuating the pump device 40 .
  • Liquid can be conveyed from the liquid reservoir 14 to a discharge opening 16 by pressing in this actuating handle 24 in an overhead position. This is surrounded by a drop formation geometry in the form of a drop formation ring, so that liquid discharged here can collect until the quantity of liquid is sufficient for a drop of the drop dispenser 10 to detach from the drop formation geometry 18 .
  • the housing 12 has an elliptical cross-section over most of its length 5 . Both the front side 12A and the opposite back side are thus designed to curve gently to the side.
  • the housing 12 therefore lies well in the hand of the user, in particular on the ring finger, middle finger and index finger, while the operating handle can be operated easily, safely and in a controlled manner with the thumb.
  • FIGS. 2A and 2B show the drip dispenser 10 in a sectional view. From this it can be seen that the liquid reservoir 14 occupies a large part of the interior of the housing 12 . As can be seen from FIG. 4B , it extends so far in the direction of the main axis 2 towards the discharge opening 16 that it is designed to partially overlap with the pump device 40 . Two sections 14A, 14B of the liquid reservoir extend up to the height of the pump chamber 42 of the pump device 40.
  • the pumping device 40 has a piston unit 48 which can be displaced orthogonally to the front side 12A and is designed as a diaphragm piston unit.
  • the piston unit 48 is partially made of an elastically deformable material and is attached to the housing 12 in the edge region, in this case to a pump chamber component 20A, which will be explained in more detail below.
  • the piston unit 48 defines said pumping chamber 42 together with the pumping chamber component 20A.
  • Pump valves are provided in the area of an inlet 44 and an outlet 46 on the inlet side and outlet side of the pump chamber 42 .
  • the discharge opening 16 is preceded by an outlet valve 70.
  • This is a valve whose primary function is to prevent the ingress of germs.
  • the outlet valve 70 has an outlet valve nozzle 72 belonging to the housing 12, within which an elastically deformable valve body 74 is arranged, which is pressed in the direction of a closed position by a comparatively strong valve spring 76.
  • the valve body 74 has a pressurizing collar which has an area of more than 100 mm 2 and is therefore able to open the valve against the force of the valve spring 76 when fluid pressure is applied.
  • the pressure for opening the outlet valve 70 is preferably below 1000 mbar, particularly preferably below 600 mbar.
  • the housing 12 has a common pump chamber and storage wall component 20 .
  • This component includes the pump chamber component 20A, which at least partially defines the pump chamber and is also the component against which the return spring 53 of the actuating handle 24 and the valve spring 76 of the outlet valve 70 are supported.
  • the reservoir wall component 20B which is formed in one piece with the pump chamber component 20A, forms an in particular cylindrical wall ring, which delimits the liquid reservoir 14 for the most part.
  • a storage floor component 26 is provided on the bottom side, which is pushed into the storage wall component 20B and is preferably welded or glued there.
  • a ventilation channel 50 is provided in the storage floor component 26 in order to introduce compensating air into the liquid storage 14 after liquid has been discharged therefrom. Since the liquid discharged with a drop dispenser 10 of the type described is preferably free of preservatives, the ventilation channel 50 is designed with a sterile filter 54 .
  • the main components of the housing 12 are described again with reference to FIG.
  • the housing 12 has the already described pump chamber and storage wall component 20 with its sections 20A, 20B.
  • the outlet valve spout 72 of the housing 12 is stationary with respect to this component and firmly connected to the pump chamber component 20A.
  • a depression is provided on the outside of the pump chamber component 20A, in which the piston unit 48 and an inner part 24B of the actuating handle 24 are arranged.
  • the housing 12 has the housing shell 22 on which an outer part 24A of the actuating handle 24 is provided in one piece via a film hinge 23A. facing each other- At the ends, the housing shell 22 has an opening for the discharge opening or the outlet valve spout 72 or an opening through which the pump chamber and storage wall component 20 can be pushed into the housing shell 22.
  • the components 20, 22 preferably latch in the assembled state.
  • the outside of the pump chamber component 20A and the inside of the housing shell 22 define a protected intermediate space 52 in which the return spring 53 is arranged and the piston unit 48 is fastened circumferentially.
  • FIG. 4A and 4B show the pump chamber and storage wall component 20 in a separate representation.
  • the component is shown uncut in FIG. 4A.
  • the shaft which is open towards the front and forms the pump chamber 42 after the addition of the piston unit 48, can be seen, as well as a retaining pin for the return spring 53 and part of the hinge 23B.
  • the sections 14A, 14B which extend into the region of the pump chamber 42 in relation to the main axis 2, can be seen from the sectional view in FIG. 4B.
  • Figures 5A and 5B show an alternative construction.
  • the accumulator wall component 20B is not produced in one piece with the pump chamber component 20A, but is only subsequently connected to one another in a joining region 21, in particular by means of welding or gluing. With such a design, a separate storage base component 26 can then be dispensed with.
  • FIGS. 6 and 7 show a third embodiment of a drop dispenser 10. This is constructed essentially like the drop dispenser 10 of FIGS. 5A and 5B. There is a difference in the general shape, in particular also of the actuating handle 24.
  • a filling opening 80 is provided on the bottom of the storage wall component 22B, which can be closed by snapping in a closure element 82 after filling.
  • the closure element 82 can comprise a ventilation channel 50 and a sterile filter 54 inserted therein.
  • FIGS. 8 and 9 show a fourth exemplary embodiment of a drip dispenser 10 according to the invention in sectional illustrations.
  • the special feature of this design is that separate components 20A, 20B, 20C form the pump chamber component 20A and the storage wall components 20B and 20C.
  • the storage wall component or components 20B and 20C are provided with a flat and preferably elliptical cross-section corresponding to the flat shape of the dispenser and corresponding approximately to the configuration of FIGS. 5A and 5B.
  • the pump chamber component 20A which The pump chamber 42 is limited, but has an essentially round outer contour, as can be seen from FIG.
  • the design means that free spaces 25 are formed between the outer contour of the pump chamber component 20A and the housing shell 22, offset laterally with respect to the pump chamber component 20A. While these represent wasted space, not using that space for liquid storage also results in a comfortably low center of gravity when handling.
  • the storage chamber component 20B and the pumping chamber component 20A are directly connected to each other. They are preferably connected in the area of a fluid connection 27, which lies below the sectional plane of FIG. 8, particularly preferably by interlocking contours 27A, 27B. These contours can preferably bring about a form-fitting coupling and thus counteract a separation of the components 20A, 20B.

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (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)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

L'invention concerne un distributeur de gouttes (10) pour l'évacuation d'un liquide sous forme de gouttes, en particulier pour l'évacuation d'un liquide pharmaceutique sous forme de gouttes. Le distributeur de gouttes comporte un réservoir de liquide (14) pour stocker le liquide avant le processus d'évacuation et une ouverture d'évacuation (16) qui est associée à une géométrie de formation de gouttes (18). Le distributeur de gouttes (10) comprend un dispositif de pompage (40), au moyen duquel le liquide peut être pompé hors du réservoir de liquide (14) et vers l'ouverture d'évacuation (16) de telle sorte que le liquide s'accumule sur la géométrie de formation de gouttes (18) et est libéré de la géométrie de formation de gouttes (18) lorsqu'une quantité suffisante de liquide est collectée. Le distributeur de gouttes (10) selon l'invention présente un boîtier plat (12), à l'intérieur duquel le distributeur de liquide et le dispositif de pompage sont agencés, et la forme extérieure du boîtier plat (12) a une largeur maximale orthogonalement à un axe principal (2) du boîtier, ladite largeur maximale étant supérieure d'au moins 25 % à l'épaisseur maximale de la forme extérieure du boîtier (12) orthogonalement à l'axe principal et orthogonalement à la largeur. Une poignée d'actionnement (24), qui peut être enfoncée, est prévue sur une surface latérale du boîtier (12) pour actionner le dispositif de pompage (40).
EP22782865.4A 2021-09-10 2022-09-09 Distributeur de liquide Pending EP4399032A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP21196124.8A EP4147787A1 (fr) 2021-09-10 2021-09-10 Distributeur de liquide
PCT/EP2022/075093 WO2023036925A1 (fr) 2021-09-10 2022-09-09 Distributeur de liquide

Publications (1)

Publication Number Publication Date
EP4399032A1 true EP4399032A1 (fr) 2024-07-17

Family

ID=77738925

Family Applications (2)

Application Number Title Priority Date Filing Date
EP21196124.8A Withdrawn EP4147787A1 (fr) 2021-09-10 2021-09-10 Distributeur de liquide
EP22782865.4A Pending EP4399032A1 (fr) 2021-09-10 2022-09-09 Distributeur de liquide

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP21196124.8A Withdrawn EP4147787A1 (fr) 2021-09-10 2021-09-10 Distributeur de liquide

Country Status (4)

Country Link
EP (2) EP4147787A1 (fr)
JP (1) JP2024531640A (fr)
CN (1) CN117917970A (fr)
WO (1) WO2023036925A1 (fr)

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CH686037A5 (fr) * 1991-07-29 1995-12-15 Aka Innovative Dev Emballage pour le conditionnement de produits pateux ou liquides.
US20140048562A1 (en) * 2012-08-17 2014-02-20 Meadwestvaco Corporation Pump device and flow control system
KR101642306B1 (ko) * 2014-12-26 2016-07-25 (주)연우 사이드버튼이 구비된 펌핑식 화장품 용기

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CN117917970A (zh) 2024-04-23
EP4147787A1 (fr) 2023-03-15
WO2023036925A1 (fr) 2023-03-16
JP2024531640A (ja) 2024-08-29

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