EP1027165A2 - Procede permettant de distribuer au moins deux produits differents et distributeur a cet effet - Google Patents

Procede permettant de distribuer au moins deux produits differents et distributeur a cet effet

Info

Publication number
EP1027165A2
EP1027165A2 EP98952735A EP98952735A EP1027165A2 EP 1027165 A2 EP1027165 A2 EP 1027165A2 EP 98952735 A EP98952735 A EP 98952735A EP 98952735 A EP98952735 A EP 98952735A EP 1027165 A2 EP1027165 A2 EP 1027165A2
Authority
EP
European Patent Office
Prior art keywords
media
liquid
dispenser
actuation
needle
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.)
Granted
Application number
EP98952735A
Other languages
German (de)
English (en)
Other versions
EP1027165B1 (fr
Inventor
Stefan Ritsche
Karl-Heinz Fuchs
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
Erich Pfeiffer GmbH
Ing Erich Pfeiffer 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 Erich Pfeiffer GmbH, Ing Erich Pfeiffer GmbH filed Critical Erich Pfeiffer GmbH
Priority to EP02027186A priority Critical patent/EP1297898B1/fr
Publication of EP1027165A2 publication Critical patent/EP1027165A2/fr
Application granted granted Critical
Publication of EP1027165B1 publication Critical patent/EP1027165B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B05B11/0078—Arrangements for separately storing several components
    • 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
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2405—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle

Definitions

  • the invention relates to the application of media, in particular pharmaceutical products in atomized, jet or drop form, and a dispenser therefor.
  • WO 96/24439 shows a disposable dispenser in which a glass ampoule containing a liquid medicament and sealed by a rubber stopper is inserted into a sleeve which is connected to a dispenser via a predetermined breaking connection.
  • This has a protruding nose adapter with an atomizing nozzle at the end.
  • a central shaft or stamp inside this adapter carries a needle in the middle which, when actuated, manually pushes the sleeve into the adapter to pierce the rubber stopper. The shaft then presses the rubber stopper into the ampoule as a piston and thus generates the application pressure.
  • This disposable atomizer is very reliable and ideally suited for dispensing liquid medication, especially for those that should be absorbed very quickly by the body, e.g. through the nasal mucosa, while also avoiding intolerance to the digestive tract that could occur with oral ingestion become.
  • medicines that are not stable in liquid form for long periods.
  • the object of the invention is to provide a method and a dispenser for dispensing at least two different media, with which solid-state media can also be reliably and metered and applied in a targeted manner.
  • the invention provides a method in which a liquid is used as a carrier medium for a particulate solid medium and the separately stored media are mixed with one another only before they are applied.
  • particulate solid medium is to be understood to mean that it is not in the form of a gas, liquid, paste or in solid form, but is normally dry with a certain flowability or flowability, in particular powdery to granular. It is therefore possible to store the two media separately from one another, the active ingredient usually being able to be present in dry form in the particulate medium.
  • it can be a pharmaceutical product that is in the form of a freeze-dried powder. Only immediately before application is it mixed with a liquid that serves as a carrier medium.
  • Either a slurry (dispersion) or a solution can be formed which is then applied together, preferably as a spray, but also as a drop or jet.
  • the liquid can be selected so that the absorption through the mucous membranes is particularly promoted. Preservatives can be dispensed with.
  • the particulate solid medium should ideally be in powder form, but at least be flowable or free-flowing and be miscible with the liquid, so that intimate mixing or even solution in the liquid is possible in the relatively short time available.
  • the particles are also in the form of so-called microcapsules, i.e. consist of ingredients covered by a skin.
  • the most direct and immediate application after the mixture is possible if the liquid is introduced into the solid medium under an application pressure and the resulting mixture is dispensed under this application pressure. However, it is also possible to carry out the mixing in a mixing phase immediately preceding the application. This can e.g. ensure that all liquid is first introduced into the space containing the solid medium before the application begins. In the case of particularly solution-active mixtures, this can already provide a solution, or at least a good suspension of the solid medium in the liquid.
  • the liquid acts as a carrier for the solid, but can itself also have or contribute to pharmaceutical effects.
  • a pressure point to be overcome manually for the actuating force can advantageously be provided between the mixing phase and the application phase, so that there is automatically a certain intermediate stop.
  • the solid state medium is mostly do not completely fill the space in which it is stored. This will contain a partially relatively large volume fraction of gas, for example air or also an inert gas which promotes the stabilization of the product.
  • this gas can be compressed with the introduction of the liquid, so that finally when it is discharged, ie opened Solid state storage or a mixing room already has a certain initial pressure, which ensures, for example, good atomization from the start.
  • a dispenser which has a liquid space, pressure generating means for generating a discharge pressure and for conveying the liquid into a media store separate from the liquid space for a powdery or free-flowing solid medium and an outlet opening for the mixture.
  • the pressure generating means can be a thrust piston pump, the cylinder of which can be the liquid space.
  • the build-up of pressure points that allow the establishment of certain minimum actuation forces can take place both before the start of the actuation and between the mixing and spreading phases, e.g. by snap connections, but preferably by predetermined breaking points, i.e. Material bridges that can be destroyed by operating forces.
  • the opening of a media room is usually made by a thin hollow needle, for example a steel needle, which is sharpened by beveling and usually has a very small diameter of less than 1 mm. It is housed in a shaft that usually also pushes the pierceable piston into the cylinder.
  • a metal adapter that was attached to the outside of the needle as a relatively thick, solid metal ring. It enabled an assembly tool to be gripped and was pressed into the shaft by means of ring-shaped locking teeth (cf. WO 96/24439). This arrangement has proven itself and was considered essential because of the reliable assembly without damaging the sensitive tip.
  • the metal adapter as a separate part, which increases the costs and also the metal content in the dispenser, which is otherwise almost to be sorted according to type.
  • the very thin and sensitive needle With the necessary tightness without damage without this adapter.
  • it is inserted between the entire central region between the ribs encompassing the two ends of a larger bore in the shaft and at the end is pressed into a bore with a press fit that is somewhat longer than the needle diameter. It is supported on a shoulder within this hole and can therefore communicate freely to the outlet opening.
  • the needle When inserting, the needle is held at its end carrying the tip by a collet which has a central pin which engages in the needle and thus prevents the sensitive tip from being crushed and damaged.
  • the dispenser 11 shown in FIGS. 1 and 2 is a one-time atomizer which delivers its entire batch in one stroke. It has a housing 12 which has an elongated adapter section 13. It protrudes centrally from an epaulette-like actuation shoulder 14 of the housing, which is oval in plan view and protrudes on two sides. The shoulder 14 is adjoined by a housing jacket 15 directed opposite the adapter, each of which has an actuating cutout 16 on its flatter sides.
  • actuating surface 17 of a sleeve 18 is accessible with a finger, which receives a glass ampoule 19, supported by webs 20 in the sleeve, which contains a liquid space 21.
  • Sleeve 18 and ampoule 19 have the shape of elongated, deep, circular cylindrical containers.
  • a ring 23 is formed on the sleeve made of plastic via thin web-like material bridges 22 which form predetermined breaking points and which is received in a snap connection 24 on the underside of the shoulder, adjacent to the interior 25 of the essentially hollow adapter 13.
  • the liquid space 21 in the ampoule 19 is closed off by a sealing plug 26, which is made of a rubber-like material and bears sealingly against the circular-cylindrical wall of the liquid space 21. It is relatively elongated and has central recesses 28 from each of its end faces, which are separated by a central web 29 which forms a pierceable membrane.
  • the sleeve 18 and the ampoule 19 protrude centrally and centrally into the interior of the adapter 13 and are guided there with the outer wall of the sleeve 18 and an upper flange 30 of the ampoule 19 on lateral webs 31 in the interior 25 of the adapter 13, specifically over the length of an actuation path.
  • a piston tappet 34 is received via a ring 32, which is connected to it via material bridges 33 forming predetermined breaking points, which extends centrally in the interior of the adapter 13 to just before the ampoule 19 or its sealing plug 26.
  • a connecting channel 35 runs inside the plunger 34, which connects to the inner channel 36 of a hollow plunger 37, which consists of a steel needle, on which, facing the sealing plug, a tip 38 is formed by chamfering.
  • the steel needle is received in a relatively solid metal adapter ring 39 which has an annular, barb-like toothing on the outside. With this he is pressed into an opening 40 adjoining the connecting channel in the piston skirt 34.
  • the connecting shaft 34 is guided and sealed above its predetermined breaking ring 32 by sealing and guide lips 41 provided in the interior 25 of the adapter 13.
  • An annular space is formed around the shaft 34 by a sealing cap 42 which forms the end of the adapter 13 and forms a media store 43 for a solid-state medium, for example a powder.
  • a sealing cap 42 which forms the end of the adapter 13 and forms a media store 43 for a solid-state medium, for example a powder.
  • an outlet opening 44 is provided in the center, which is designed as a spray nozzle. It generates a cone-shaped spray jet with the help of swirl channel formation 45 at the front end of the shaft 34. During operation, this lies against the inside of the outlet nozzle 44.
  • Channels cause a swirl of the liquid or mixture flowing through them quickly.
  • An outlet chamber 46 is formed between the inside of the nozzle and the end face of the shaft 34 and is sealed off from the media reservoir 43 by sealing lips 47 of the end cap 42.
  • the outlet chamber contains overflow channels 48 in its cylindrical wall adjacent to the sealing lips.
  • the connecting channel 35 in the shaft 34 ends in side lie, openings 49 formed by a transverse channel on the shaft surface.
  • the liquid space 21 is filled with a liquid which is intended to mix with a particulate solid medium in the media reservoir 43 when it flows out, to dissolve it or to open or disperse it and to apply it together with the liquid.
  • the solid medium is a pharmaceutically active substance, usually in powder form.
  • the liquid mostly consists mainly of water, which is in a sterile and possibly physiologically adapted form to the body fluid.
  • other liquids or liquid additives are also possible which can also have properties which promote or trigger the effectiveness of the solid-state medium. A two-component effect can arise between the liquid and the solid medium.
  • the dispenser according to FIGS. 1 and 2 is in the packaging, storage and sales state in the position shown in FIG. 1.
  • the liquid space 21 is filled with the liquid 50 and sealed off by the sealing plug 26.
  • the plunger 37 is located closely above the web 29.
  • the solid medium 51 is located in the media store 43, but at the same time a mostly even larger amount of air, which on the one hand is caused by the spaces between the particles, but may also be present in order for the particles do not have to be filled in too compactly.
  • the media reservoir 43 is sealed off from the inside and from the inside by the sealing lips 41 and 47 and the corresponding cylinder surfaces of the shaft 34.
  • the elongated adapter 13 is brought into the appropriate dispensing position, for example inserted into a nostril.
  • the sleeve / ampoule 18/19 moves upwards, i.e. into the interior 25 of the adapter 13.
  • the needle-like plunger 37 pierces the web 29 in the sealing plug 26 and the lower end face 52 of the shaft 34, which has a slightly smaller diameter than the liquid space 21, meets the end face 53 of the sealing plug 26. This thereby forms the piston of a thrust piston pump, the cylinder of which is formed by the liquid space 21 or the glass ampoule 19.
  • the upward axial pressure acting on the shaft 34 also breaks the material bridges 33, which connect the ring 32 to the shaft 34, so that the shaft 34 moves upward in FIG. 2 until its upper end face coexists the vortex channel formation 45 abuts the upper end wall delimiting the outlet chamber.
  • the connecting channel 35 is connected via the lateral openings 49 to the annular media store 43, which, however, remains sealed off from the adapter interior 25 by the lips 41.
  • an annular groove 54 in the shaft bypasses the upper sealing lip 47, so that an outlet flow channel is formed via the overflow channels 48 and the swirl channel formation 45 to the outlet opening (nozzle) 44.
  • the pressure of the shaft 34 on the sealing plug / piston 26 generates the necessary discharge pressure which conveys the liquid through the needle 37, the connecting channel 35 and the openings 49 into the media reservoir 53. There it mixes with the solid medium 51, which can be promoted, for example, by the design of the media store and / or the openings 49, for example by their inclination to produce a swirl. The resulting mixture is then discharged from the outlet opening, in particular in finely sprayed form.
  • the sealing lips 47 together with the upper piston section 47a or the groove 54 form the outlet valve.
  • the dispenser is intended to dispense the entire batch of solid-state medium and liquid stored separately and tightly sealed in a single, but here two-stage actuation stroke.
  • FIGS. 1 and 2 are the same as that shown in FIGS. 1 and 2 except for the differences described below. Reference is made to the description thereof and the same reference symbols are used.
  • An ampoule 19 is accommodated in the sleeve 18, which is longer than that according to FIG. 1. It contains both the liquid space 21 and the media reservoir 43a in an axial sequence. Accordingly, in the ampoule 19, in addition to the sealing piston 26 which seals the media reservoir 43a here, there is an intermediate piston 55 which separates the liquid space 21 from the media reservoir 43a and which, in the idle state shown in FIG. 3, seals the two spaces from one another.
  • a connection channel 35a is formed in the wall of the ampoule 19 for the connection thereof, but its exit into the media reservoir 43a is closed by the intermediate piston 55 in the idle state.
  • the shaft 34 is sealingly inserted into a socket section 56 of the adapter 13, which is formed in one piece with the housing 12 (and thus with the adapter 13).
  • the hemispherical adapter end 57 is also formed in one piece with it, in which the nozzle-shaped outlet opening 44 is also provided.
  • the shaft On its upper end face, the shaft contains the swirl channel formation 45 which interacts with the outlet nozzle.
  • the plunger 37 which is formed by a steel needle and extends almost through the entire shaft 34 to just before its upper end face, is accommodated in the shaft.
  • the needle which usually has an outer diameter of less than one millimeter and a correspondingly small wall thickness, and is very carefully sharpened to form a sharp and burr-free tip 38, is directly into a bore 58 of the shaft without the adapter 39 shown in FIG. 1 used.
  • This bore has a much larger diameter than the needle 37, but leads it through, for example, four webs 59 projecting radially inward from the bore inner wall, which begin in the region of the end face 52 of the shaft 34 with an insertion bevel 60. They ensure precise centering and prevent the thin needle from kinking when inserted. They extend from the free end of the shaft to a fitting bore 61, ie over the largest central region of the needle, which is important above all for preventing kinking.
  • the needle 37 is pressed into a fitting bore 61 which is dimensioned such that it enables a tight interference fit of the needle in it.
  • a shoulder 62 in this fitting hole forms an upper stop for pressing the needle.
  • the fitting bore encompasses the upper end of the needle closely over a length that is greater than a multiple, for example five times, of the outer diameter of the needle.
  • the fitting bore communicates at its upper end with the outlet chamber 46.
  • the dispenser consists of very few parts.
  • the shaft 34 with the needle mounted therein is inserted into the one-piece housing into which the outlet opening 44 is directly molded.
  • the dispenser is completed by the unit sleeve / ampoule 18/19 with sealing plug 26 and intermediate piston 55, which separate the liquid and media chamber.
  • the assembly of the dispenser according to Fig. 3 is very simple. Due to the novel design of the shaft 34, the needle can be mounted without the annular adapter 39 according to FIG. 1.
  • the ribs 59 guide the needle as it enters the bore 58 without providing excessive resistance in the longitudinal direction. Only when the needle is guided between the ribs over most of its length does it enter the fitting bore 61, where it is pressed in in a sealing manner and also mechanically secured against being pulled off.
  • the needle protrudes from the shaft 34 only over a relatively small part of its length, usually less than a third. Thus, the section most at risk of kinking, which lies in the center of the needle, is already secured against kinking between the ribs when the force for pressing it into the fitting bore 61 is applied.
  • a tool is used that grips the needle from the outside with a kind of collet (in the area protruding from the shaft), but also has a central pin that engages in the needle bore and thus secures the needle against pinching and damage to the tip .
  • the pre-assembled shaft can then be used with its upper, partially wise bevelled end are pressed into the socket 56.
  • the preassembled unit consisting of the sleeve and the inserted ampoule 19 is attached to the housing 12 via the snap lock 24. Before this, the ampoule had first been filled with the liquid, the intermediate piston 55 was attached, and then the solid medium was filled into the media reservoir 43a located above. Then the plug 26 was put on.
  • the predetermined breaking point 22 When actuated, as in FIGS. 1 and 2, the predetermined breaking point 22 is destroyed in order to achieve a sufficient initial pressure, which ensures that the user actually completes the actuation with a certain force and speed. An interruption in the interim would, for example, cause the atomizer to drip and possibly impair the mixture of substances or prevent complete application.
  • the plunger 37 then pierces the web 29 in the piston 26 and thus opens the outlet channel 36, which is mainly formed by the interior of the hollow needle 37, with respect to the media reservoir 43a.
  • the shaft 34 presses the piston 26 downward and compresses the solid medium 51 located in the media store 43a and the air contained therein (or a corresponding inert gas).
  • the intermediate piston 55 is also pushed downward and opens the connecting channel 35a in the ampoule wall. This could also be formed by a corresponding elevation of this wall, which would then release an overflow channel on both sides.
  • the liquid 50 flows from the liquid space 21 into the media reservoir 43a, mixes there with the medium 51 and is conducted with the corresponding discharge pressure via the needle bore 36 to the outlet opening 44.
  • a complete discharge of the two media (plus the third medium “air”) is also possible here.
  • the air also forms a pre-compression, which promotes the beginning of the atomization phase.
  • the arrangement could also be such that the medium is arranged in the area of the ampoule near the bottom and the liquid above it. In this case the liquid would flow down first, mix with the medium there and then flow again through the liquid chamber to the outlet. In this way, a particularly intimate mixture can possibly be brought about.
  • FIG. 4 shows a particularly simple construction embodiment.
  • an ampoule 19 which can also consist of plastic and has the shape of a particularly deep bowl, a liquid piston 64, which is sealed with piston lips, is guided and is formed in one piece at the lower end of a piston rod 65.
  • a subsequent chamber 63 receives the ball when it is pushed out, and a swirl channel / nozzle arrangement 80 similar to the nozzle 44 with swirl channel 45 ensures a jet distribution that promotes mixing of the media, possibly with swirl and atomization in the media store 43b.
  • the adapter cap 13b has lateral actuation shoulders 14b and engages with its lower part in the interior of the ampoule 19, ie it leads to the cylinder wall 27.
  • resilient tabs 71 form together with a groove in the cylinder wall 27 on the one hand a snap lock which secures the idle state and prevents the adapter cap 13c from being pulled off the ampoule, and on the other hand they provide the necessary actuation force build-up before the actuation begins.
  • a barb-like design With a barb-like design, the pulling can be prevented and the actuating force build-up can be measured in a predetermined manner.
  • This dispenser consists of a few relatively simple plastic parts, a piece of film and a small steel or plastic ball. It could also be replaced by a puncture membrane or a membrane tearing by liquid pressure.
  • the liquid space 21 is filled with liquid 50, the piston / piston rod unit 64, 65 is inserted and then the adapter cap 13b, filled with the medium 51, is used.
  • the tear-off closure 70 is first torn off, so that the outlet opening 44 is open.
  • the piston 64 is then pressed into the sleeve 19 (or vice versa) while overcoming the pressure point which the spring lobes 71 produce.
  • the resulting liquid pressure forces the ball 67 out of the overflow channel 66 into the chamber 63.
  • the individual rooms are completely sealed off from each other and from the outside.
  • the tear-off closure 70 could also be replaced by a pressure-dependent opening valve, but this is usually not necessary in the case of a disposable dispenser.
  • an outlet valve which the user only deliberately opens after a mixing phase for example a rotary slide valve which is turned by rotating the upper section of the adapter cap 13, 13b relative to the rest of the housing is operated.
  • the rotation could also release a stop that prevented the piston rod from dispensing the mixture immediately during the first actuation step (mixing).
  • the time required to actuate the rotary valve could, for example, ensure that the powder is dissolved in the liquid.
  • FIGS. 1 to 3 also applies to the exemplary embodiments according to FIGS. 5 to 7. Only the differences are described below.
  • the main difference is the unit comprising the sleeve 18 and ampoule 19 and containing the media.
  • a plastic plunger 37c is formed there, which projects upwards centrally in the sleeve and has a cross-shaped cross section.
  • An inner sleeve 19c which has a pierceable membrane 29c on its bottom, is inserted in a piston-like sealing manner. This sleeve seals the liquid space from the top. It is inserted into the interior 25 of the nose adapter 13 by means of a predetermined breaking ring 32. The predetermined breaking ring works with material bridges 33 as described.
  • the inner sleeve 19c forms a cylinder for a storage / mixing Chamber 43c, which is closed at the top by an inverted sleeve-shaped sealing plug 26c serving as a piston.
  • the liquid 50 is filled into the liquid space 21 and the solid medium 50 into the media storage 43c. This is closed by the plug 26c.
  • the inner sleeve 19c is inserted in the manner of a piston in the sleeve 18, which thus forms the cylinder of a second thrust piston pump on this dispenser and closes off the liquid space 21 at the top.
  • the predetermined breaking closure 32 When actuated, the predetermined breaking closure 32 is broken first.
  • the plunger 37c then penetrates through the membrane 29d and establishes the connection between the liquid space 21 and the media store 43d via the channels formed in its cross-section.
  • the piston-like lower part of the inner sleeve 19c which reduces the liquid space 21, conveys the liquid 50 into the media storage space 43c, which enlarges in the process by pushing the sealing plug 26c upward under the media pressure thus created.
  • Fig. 6 shows the end of this mixing phase, in which the liquid and the solid medium mix. It is ended by the fact that, as shown in FIG. 6, the bottom of the inner sleeve 19c lies against the bottom 17 of the sleeve 18. There is then only one common mixing space 43c. The air previously present in the media space 43c can compress more or less depending on the resistance of the sealing plug 26c and thus maintain a base pressure in the mixing chamber.
  • the predetermined breaking closure 32 can be set such that the user, when he has reached the position shown in FIG. 6, must apply a new, increased pressure. Thereby it is ensured that there is sufficient time in the mixing chamber 43c for the components to be mixed, if necessary dissolved.
  • the predetermined breaking closure 32 breaks, the needle 37 penetrates through the bottom 29d of the closure plug 26c, which is then contacted by the end face 52 of the shaft 34 and is pressed into the inner sleeve 19c forming a pump cylinder in the manner of a piston.
  • the mixture 50/51 is transported from the mixing chamber 43d via the outlet channel formed by the needle bore 36 to the outlet opening 44, where it is atomized under the application pressure or dispensed in some other way.
  • the application phase could be limited in time by a stop to be released by means of rotation, in addition to or instead of the predetermined breaking ring 32. It is also possible to use a rotary slide valve instead of the piercing needle which is opened by this rotation.
  • the mixing phase can thus be spatially and temporally separated from the application phase, although everything essentially follows one another directly, so there is no risk that the solid medium is damaged in the mixing phase. It is also possible to distribute these two phases over two different actuation strokes instead of performing them in two axially successive stroke sections, as in FIGS. 5 * to 7. It is also possible, by appropriate subdivision or succession of strokes, to apply a batch premixed in a first stroke in two successive partial application strokes in order, for example, to apply a medicament successively to both nostrils of a patient. A multiple dispenser or rechargeable dispenser based on the principle described above is also possible.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)

Abstract

Afin de distribuer une substance active sèche, pulvérulente ou granulaire, on la stocke dans un distributeur séparément d'une réserve de fluide. Lors de l'utilisation, la poudre est déchargée avec l'aide du fluide, qui sert de véhicule pour la substance active et qui est au préalable plus ou moins mélangé avec celle-ci. Le distributeur (11) comprend un réservoir de fluide (21) disposé dans une ampoule (19) qui comporte un bouchon obturateur (26) pouvant être percé. Le flux libéré par l'actionnement passe dans un réservoir de produit (43) qui s'ouvre à ce moment-là, se mélange avec le produit (51) qui y est contenu et sort sous forme de brouillard, de jet ou de gouttelettes par un orifice de décharge (44) qui s'ouvre à cet effet.
EP98952735A 1997-11-08 1998-10-22 Procede permettant de distribuer au moins deux produits differents et distributeur a cet effet Expired - Lifetime EP1027165B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02027186A EP1297898B1 (fr) 1997-11-08 1998-10-22 Distributeur avec aiguille perforante pour matériaux à mélanger pendant la distribution

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE19749514 1997-11-08
DE19749513 1997-11-08
DE19749514A DE19749514A1 (de) 1997-11-08 1997-11-08 Verfahren zum Ausbringen von wenigstens zwei verschiedenen Medien und Spender dafür
DE19749513 1997-11-08
DE19837127 1998-08-17
DE19837127A DE19837127A1 (de) 1997-11-08 1998-08-17 Spender für Medien
PCT/EP1998/006712 WO1999024171A2 (fr) 1997-11-08 1998-10-22 Procede permettant de distribuer au moins deux produits differents et distributeur a cet effet

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP02027186.2 Division-Into 2002-12-05

Publications (2)

Publication Number Publication Date
EP1027165A2 true EP1027165A2 (fr) 2000-08-16
EP1027165B1 EP1027165B1 (fr) 2003-03-19

Family

ID=27217911

Family Applications (3)

Application Number Title Priority Date Filing Date
EP02027186A Expired - Lifetime EP1297898B1 (fr) 1997-11-08 1998-10-22 Distributeur avec aiguille perforante pour matériaux à mélanger pendant la distribution
EP98965137A Expired - Lifetime EP1027166B1 (fr) 1997-11-08 1998-10-22 Distributeur pour plusieurs milieux melanges avant decharge
EP98952735A Expired - Lifetime EP1027165B1 (fr) 1997-11-08 1998-10-22 Procede permettant de distribuer au moins deux produits differents et distributeur a cet effet

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP02027186A Expired - Lifetime EP1297898B1 (fr) 1997-11-08 1998-10-22 Distributeur avec aiguille perforante pour matériaux à mélanger pendant la distribution
EP98965137A Expired - Lifetime EP1027166B1 (fr) 1997-11-08 1998-10-22 Distributeur pour plusieurs milieux melanges avant decharge

Country Status (9)

Country Link
US (1) US6626379B1 (fr)
EP (3) EP1297898B1 (fr)
JP (2) JP4411374B2 (fr)
AU (2) AU1031699A (fr)
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JP2006081917A (ja) 2006-03-30
DK1027165T3 (da) 2003-07-21
WO1999024170A1 (fr) 1999-05-20
EP1027166B1 (fr) 2002-07-10
DE59804744D1 (de) 2002-08-14
DE19749514A1 (de) 1999-05-12
US6626379B1 (en) 2003-09-30
AU2047599A (en) 1999-05-31
EP1027166A1 (fr) 2000-08-16
AU1031699A (en) 1999-05-31
ES2222430T3 (es) 2005-02-01
JP4411374B2 (ja) 2010-02-10
JP2001522717A (ja) 2001-11-20
DK1297898T3 (da) 2004-10-04
EP1297898A2 (fr) 2003-04-02
WO1999024171A2 (fr) 1999-05-20
WO1999024171A3 (fr) 1999-07-15
DE19837127A1 (de) 1999-05-12
DE59811482D1 (de) 2004-07-01
CA2307160C (fr) 2009-05-05
ES2194360T3 (es) 2003-11-16
EP1297898B1 (fr) 2004-05-26
DE59807579D1 (de) 2003-04-24
JP4789089B2 (ja) 2011-10-05
EP1027165B1 (fr) 2003-03-19
CA2307160A1 (fr) 1999-05-20
EP1297898A3 (fr) 2003-04-09

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