EP0951362B1 - Discharge device for flowable media using a thrust piston pump - Google Patents

Discharge device for flowable media using a thrust piston pump Download PDF

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Publication number
EP0951362B1
EP0951362B1 EP98904040A EP98904040A EP0951362B1 EP 0951362 B1 EP0951362 B1 EP 0951362B1 EP 98904040 A EP98904040 A EP 98904040A EP 98904040 A EP98904040 A EP 98904040A EP 0951362 B1 EP0951362 B1 EP 0951362B1
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EP
European Patent Office
Prior art keywords
discharge device
discharge
base body
pump
channel
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.)
Expired - Lifetime
Application number
EP98904040A
Other languages
German (de)
French (fr)
Other versions
EP0951362A1 (en
Inventor
Gerald Krampen
Karl-Heinz Fuchs
Hans Merk
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
Priority claimed from DE19700437A external-priority patent/DE19700437B4/en
Application filed by Erich Pfeiffer GmbH, Ing Erich Pfeiffer GmbH filed Critical Erich Pfeiffer GmbH
Priority to EP02007105A priority Critical patent/EP1219356B1/en
Priority to DE29824620U priority patent/DE29824620U1/en
Publication of EP0951362A1 publication Critical patent/EP0951362A1/en
Application granted granted Critical
Publication of EP0951362B1 publication Critical patent/EP0951362B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-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
    • B05B11/02Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/65Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits
    • B05B15/652Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits whereby the jet can be oriented
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005Components or details
    • B05B11/0037Containers
    • B05B11/0039Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
    • B05B11/0044Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means

Definitions

  • This Training ensures that e.g. when atomizing the There is sufficient atomization pressure from the beginning of the medium is and that the pump is operated to the end of its stroke and so the entire content of the media storage that simultaneously forms the pump cylinder in one or two strokes outputs.
  • Such single or multiple dispensers are important for dispensing medication related to dosage, Contamination, preservation or other criteria in particular are critical.
  • EP-B-521 022 shows a double atomizer in which the Thrust piston pump through a backdrop on the circumference of the housing stroke limited, which is switched on for a second stroke becomes.
  • a pump atomizer is known from DE-U-296 01 047 for two consecutive discharge strokes is set up.
  • the pump cylinder is on one forming media container receiving sleeve two predetermined breaking rings provided, which come into engagement one after the other.
  • the second predetermined breaking ring forms a stop Completion of the first discharge stroke stage.
  • the pressure point safety device can have at least one predetermined breaking point contain. It is particularly preferred for a snap-on type Ring provided which e.g. on a push button forming, receiving the media container over destructible material bridges is formed. This snap-in Ring enables the material bridges on one of the provide two parts to be joined, then according to the separation of the material bridges on the other part snapped ring remains on this.
  • the stop that ends the first stroke can be stop elements have spokes on the ring. So if the First stroke is complete, this beats against the base body moving part, i.e. the actuating sleeve with the media storage, to the fixed stop so that ensures is that the second discharge stroke stage is not triggered immediately becomes.
  • the unlocking operation is first carried out, for example by rotating the two relative to each other moving parts against each other. So for example those remaining on the actuating sleeve spokes now separated from the ring into one position be rotated where they lie in the area of webs which in turn connected to the base body via predetermined breaking points are. This rotational position can be caused by projecting wall sections be limited to prevent over-turning. If you press it a second time, it will break again Predetermined breaking points between the web and the base body, see above that one with a minimum actuation force second discharge stroke is carried out.
  • the media storage is hermetic until first use is closed.
  • the one with her the discharge channel connected or formed by it remains open on the first stroke, so that on the subsequent second Stroke the atomization can begin immediately.
  • WO 93/00172 shows a disposable atomizer for others Type one adjoining a nozzle section Outlet trunk with a smaller cross-section.
  • the invention therefore also aims to provide a spreading device train that application to specific places inside body openings, especially difficult accessible places.
  • a nozzle section of the base body opposite one of a nozzle section of the base body this significantly reduced in diameter, thinner and Connect the long outlet nozzle to the end of the outlet opening preferably arranged in the form of a spray nozzle is.
  • the outlet trunk has an inner channel that largely except for at least one line channel for the medium, is filled by a filler. Its at the outlet opening adjacent end face can with the outlet opening together delimit spray nozzle swirl channels, these vertebral canals as spiral grooves in this Front side can be included.
  • a disposable double atomizer to output two consecutive Partial batches created as a spray. He points to a body a protruding nose adapter with nozzle, actuation shoulders to rest two fingers and one in the Basic body pushable actuating part with a Actuating sleeve and a media storage held therein on, the sealing plunger plug of a hollow needle can be pierced. There is a on the actuating sleeve Ring attached over predetermined breaking points by means of spokes with a first actuation while maintaining a Minimum actuation pressure breaks off. The spokes hit stop and thereby limit the first partial stroke. By turning the actuating sleeve, the actuating section becomes brought into the start position for the second stroke level. There are intermediate webs inserted by means of material bridges broken out, which also maintains the second partial stroke a minimum operator.
  • the discharge device 11 shown in the drawing has a base body 12, which consists of plastic injection molding. It has a central elongated neck section 13, the shape and length of each Application is adapted. In the present case it is a so-called nose adapter, which is intended in one Nostril to be inserted into a patient. On his it has a discharge opening 14 in the form of an upper end Spray nozzle with an upstream angle chamber. To this is then inside the hollow nozzle section 13th a sleeve-shaped piston rod carrier 15 is provided in the a likewise hollow piston rod 16 is pressed in at the bottom. In it in turn is a piston tappet 17 in the form of one on it lower free end similar to beveled hollow steel needle an injection needle, by means of a Needle surrounding seal 18. This needle shaped plunger 17 completely penetrates the piston rod and is led up to the discharge opening 14, so its interior forms a discharge channel 19.
  • the pharmaceutical medium 24 to be dispensed is in one Media container 20 provided as a cylindrical, below closed and open at the top, with side flange provided glass container formed like an ampoule is. It forms both the media storage and the Pump chamber 23 so that its inner walls simultaneously the Are cylinder barrel of a thrust piston pump 46.
  • Your butt 21 is formed by a piston plug made of rubber or rubber-like material and one in the middle Membrane 22 in the form of a middle piece with a small wall thickness has, which are pierced by the piston tappet 17 can.
  • the media container 20 is in an actuating and receiving sleeve 25 added, which is in the form of a very elongated plastic sleeve closed at the bottom with inner support ribs is designed for the media container.
  • Your closed Bottom 26 forms an actuating surface for the Discharge device 11. It is between ribs 45 inside of the nozzle section together with the media container guided and axially movable therein.
  • a first pressure point safety device 27 is formed on the outer circumference. It consists of three connecting bars or spokes 29 (Fig. 3), the material bridges 30 with a rotating outer ring 28 are connected. This is in one go a guide groove 42 with its circumferential position Outer circumference recorded in a snap connection 32, which in a cylindrical base section 34 of the base body, namely at its lower edge.
  • the material bridges are designed so that when a break predetermined operating pressure (Fig. 2).
  • a Inner rib 48 of the base section 34 places the ring 28 in its axial position.
  • the base portion 34 extends from actuation shoulders 35 down, which as the total oval surface (Fig. 4) surrounded middle nozzle section 13 and down one have stiffening edge 36.
  • the spokes 29 have lateral reinforcements and are in the axial direction Support ribs 31 stiffened.
  • the outer surface of the actuator sleeve 25 has an outer handle in the form of a Corrugation on.
  • Walls 44 are provided which protrude downwards. she form three arc sections 49 and then extend on both sides to the circumference of the base section outside so that they form slots 43 between them. Between whose walls 44 are platelets or webs 40 which a second pressure point safety device 39 for a second stroke form. They are over material bridges 41 with the walls connected. One of the walls 44 is extended and forms a rotary stop 38 on which one of the spokes 29 at one Rotation strikes.
  • the one with the Medium 24 filled media container 20 is in the actuating sleeve 25 added and its pump chamber 23 is through the Piston plug 21 tightly closed. It is in one Distance from the tip of the piston rod 17 when the Actuating sleeve is in the starting position, this is defined that the ring 28 of the first pressure point securing 27 is engaged in the snap device 32 and on the Bottom of the ribs 48 abuts.
  • the resulting ready-to-use discharge device is now seized by the user if necessary by using two Fingers on the actuation shoulders 35 and with the Presses thumb on the actuating surface 26.
  • a sufficient actuation pressure tear the Material bridges 30, which form a predetermined breaking point, so that the actuating sleeve now with a predetermined force and accordingly high operating speed in Fig. 1 after is moved up.
  • the piston rod 16 presses the piston plug in the media container 20 and the medium 24 is on the Discharge channel 19 in the needle and the outlet opening 14 as Spray released. This happens while the patient the neck portion 13 inserted into one of its nostrils would have.
  • the spokes 29 lie on the Bars 40.
  • the material bridges also break there for the second discharge stroke stage 41.
  • the second discharge stroke level is also like that first run by the lower front edge of the piston rod 16 the piston plug 21 further into the media container 20 pushes in and thus the medium in the manner of a thrust piston pump through the discharge channel 19.
  • this is the function completed. So it's a two-way disposable pump, which is disposed of after a single use. Because with one exception the media storage 20 and the steel needle 17, and possibly the Piston plug 21 all parts are made of plastic injection molding, preferably made of the same material recycling possible.
  • the discharge device allows the individual partial batches dispense with great dosing accuracy and reliability; if desired in different sizes Amounts.
  • the partial strokes are because of the first actuation to pass through empty paths different, what with the Design is taken into account. It is possible to use the discharge device to adapt for other purposes, for example for medication for eyes or other paired or multiple occurring application locations are determined. Also for several successive applications in the form of spray or other output form, for example the treatment in Intervals of a few minutes on the same application site, the device can be used.
  • the discharge device 11 corresponds to the one below explained differences of that according to FIGS. 1 to 5. On their description is referred to. Wear the same parts same reference numerals.
  • the nozzle section 13 tapers towards its end and goes into an outlet trunk 50, which is integral with this is trained and elongated and thin. Its diameter is between 3 and 4 mm or less, however usually not more than 5 mm, and it is preferably over 10 mm between 20 and 30 mm long. The ratio trunk length to diameter is about 7 and should advantageously be over 5 be. It is circular cylindrical and has at its end the outlet opening 15 in the form of a spray nozzle. This is a hole of small diameter formed in the outlet trunk 50, that along with vertebral canals 51 that go into that front end of a filler 52 are formed, a Forms nozzle with conical spray.
  • the filler 52 is integral with the piston rod 16 formed and has conduit channels 53 on its outside very small cross section in the form of molded longitudinal grooves.
  • the longitudinal piece fills an inner channel 54 of the hollow one Exhaust nozzle 50 from what the dead space for the emerging Medium minimized.
  • the line channels 53 are through one a reduction in the diameter of the filler / piston rod unit formed distribution chamber 53 to the inner bore of the needle 17 connected.
  • the outlet nozzle 50 is flexible, namely in the area of an articulated kink 56, which in a middle area of the outlet trunk. It is through it formed that the filler 52a in the area of the kink in Diameter is reduced so much that it is due to the flexibility of its material is slightly flexible.
  • the material too of the outlet proboscis is so flexible that it is a allows some hose-like bend. If necessary, could bellows-like folds are molded in there to facilitate bending his. It is also possible to remove the entire trunk through appropriate choice of materials elastic or plastic to make it pliable. It is also possible to use the outlet proboscis to constantly bend or bend or align choose the spray nozzle differently than in the axial direction.

Landscapes

  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Threshing Machine Elements (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Valve Device For Special Equipments (AREA)
  • Medicinal Preparation (AREA)
  • Materials For Medical Uses (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Closures For Containers (AREA)
  • Coating Apparatus (AREA)

Abstract

The spray may be used eg. as a nasal spray. It has the medication stored in a sealed reservoir which is punctured by a hollow needle when the pump action is operated. This has finger-grips to operate using the thumb and first two fingers. The first pump action is limited by internal stops. The second pump action follows a simple twist of the applicator and a pump action to the bottom of the pump travel. The spray delivers two equal doses in two separate pump actions eg. a precise nasal spray for migraine.

Description

In der EP-B-0 311 863 (= US-A-4 964 069) der Anmelderin ist eine Austragvorrichtung beschrieben, bei der ein Pumpenzylinder und ein nach Art einer Schnappverriegelung ausgebildeter federnder Anschlag so zusammenwirken, daß vor der Ausführung eines Teilhubes ein bestimmter Betätigungsdruck von dem Bedienenden aufgebracht werden muß, so daß nach Überwindung dieses Druckpunktes der Austrag der Flüssigkeit mit einer bestimmten Mindestkraft und -geschwindigkeit erfolgt. Diese Ausbildung stellt sicher, daß z.B. bei Zerstäubung des Mediums vom Beginn an ausreichender Zerstäubungsdruck vorhanden ist und daß die Pumpe bis zu ihrem Hubende betätigt wird und so den gesamten Inhalt des Medienspeichers, der gleichzeitig den Pumpenzylinder bildet, in einem oder zwei Hüben ausgibt. Solche Einmal- oder Mehrfach-Dosierer sind bedeutsam für die Ausgabe von Medikamenten, die bzgl. der Dosierung, Kontaminierung, Konservierung oder weiteren Kriterien besonders kritisch sind.In EP-B-0 311 863 (= US-A-4 964 069) by the applicant described a discharge device in which a pump cylinder and a snap lock type Interact resilient stop so that before execution a partial stroke a certain actuation pressure from the Operators must be applied so that after overcoming this pressure point the discharge of the liquid with a certain minimum force and speed. This Training ensures that e.g. when atomizing the There is sufficient atomization pressure from the beginning of the medium is and that the pump is operated to the end of its stroke and so the entire content of the media storage that simultaneously forms the pump cylinder in one or two strokes outputs. Such single or multiple dispensers are important for dispensing medication related to dosage, Contamination, preservation or other criteria in particular are critical.

Ferner ist es in der WO 92/00812 der Anmelderin offenbart, Medienspeicher für nur einen Austraghub, die mit einem gleichzeitig als Kolben dienenden Stopfen verschlossen sind, zu benutzen, wobei der Stopfen zur Betätigung von einer Nadel durchstoßen wird. Furthermore, it is disclosed in WO 92/00812 by the applicant, Media storage for only one discharge stroke, the one plugs serving as pistons are closed at the same time, to use, with the plug for actuation by a needle is pierced.

Es ist ferner aus der FR-A-1 535 293 eine Originalitätssicherung für Aerosolventile bekannt geworden, bei der zwischen der die Düse tragenden Kappe und einem auf dem Behälterverschlußdeckel aufschnappbaren flanschartigen Wulst Sollbruchstellen vorgesehen sind, die vor der ersten Benutzung zerbrechen.From FR-A-1 535 293 it is also an originality assurance for aerosol valves, where between the cap carrying the nozzle and one on the Container closure lid snap-on flange-like bead Breakpoints are provided before the first use break.

Die EP-B-521 022 zeigt einen Zweifach-Zerstäuber, bei dem die Schubkolbenpumpe durch eine Kulisse am Umfang des Gehäuses hubbegrenzt ist, die für einen zweiten Hub weitergeschaltet wird.EP-B-521 022 shows a double atomizer in which the Thrust piston pump through a backdrop on the circumference of the housing stroke limited, which is switched on for a second stroke becomes.

Aus der DE-U-296 01 047 ist ein Pumpenzerstäuber bekannt geworden, der für zwei aufeinander folgende Austraghübe eingerichtet ist. Dazu sind an einer den den Pumpenzylinder bildenden Medienbehälter aufnehmenden Hülse zwei Sollbruchringe vorgesehen, die nacheinander in Eingriff kommen.A pump atomizer is known from DE-U-296 01 047 for two consecutive discharge strokes is set up. For this, the pump cylinder is on one forming media container receiving sleeve two predetermined breaking rings provided, which come into engagement one after the other.

Dabei bildet der zweite Sollbruchring einen Anschlag zur Beendigung der ersten Austragshub-Stufe.The second predetermined breaking ring forms a stop Completion of the first discharge stroke stage.

AUFGABE UND LÖSUNGTASK AND SOLUTION

Es ist eine Aufgabe der Erfindung, eine Austragvorrichtung für fließfähige Medien mittels einer Schubkolbenpumpe zu schaffen, mit der sichergestellt ist, daß ein Austrag in wenigstens zwei aufeinanderfolgenden Austraghubstufen erfolgt, wobei insbesondere diese Austragshübe mit jeweils einem vorbestimmten Mindestdruck erfolgen und vorzugsweise so gegeneinander gesichert sind, daß sie auch bei Anwendung größerer Kräfte nicht mit einer einzigen Betätigung auszuführen sind.It is an object of the invention to provide a discharge device for flowable media using a thrust piston pump create with which it is ensured that a discharge in at least two successive discharge stroke stages take place, in particular these discharge strokes with each a predetermined minimum pressure and preferably so are secured against each other that they are also in use Do not perform larger forces with a single operation are.

Diese Aufgabe wird durch den Anspruch 1 gelöst. Es sind also insgesamt zwei zerstörbare Druckpunktsicherungen vorgesehen, die jede für sich eine vorgegebene Betätigungskraft zu ihrer Auslösung benötigt, die aber durch einen nicht von der Druckpunktsicherung gebildeten Anschlag so voneinander entkoppelt sind, daß ein versehentlicher Durchbruch mehrerer Druckpunktsicherungen bei einem Betätigungshub ausgeschlossen ist.This object is solved by claim 1. So there are a total of two destructible pressure point safeguards are provided, which each have a predetermined operating force for themselves Tripping required, but not by one of the Pressure point safety stop so formed from each other are decoupled that an accidental breakthrough of several Pressure point safeguards excluded during an actuation stroke is.

Es ist damit sichergestellt, daß ein Medikament, das schnell wirken soll, in zwei aufeinanderfolgenden Hüben z.B. in beide Nasenlöcher des Patienten eingesprüht wird. Dies ist besonders wichtig für Medikamente zur Behandlung von stark schmerzenden Krankheiten oder Krankheitsschüben, beispielsweise von Migräne. Die zur Behandlung dieser Krankheiten entwickelten Medikamente sind sehr teuer und müssen daher sehr genau dosiert eingesetzt werden. Ihre Aufnahme über die Nasenschleimhäute ist sehr gut und schnell wirksam, sollte aber möglichst über beide Nasenlöcher gleichmäßig aufgenommen werden, um die schnelle Wirksamkeit noch zu erhöhen. Dabei ist besonders zu beachten, daß die Patienten, die z.B. von einem Migräneanfall befallen sind, vor Schmerzen stark verkrampft sind und daher eine sichere und unkomplizierte Funktion der Austragvorrichtung unabdingbar ist. Dies alles wird durch die Mehrhub-Austragvorrichtung nach der Erfindung unabhängig von irgendwelchen äußeren Verhältnissen sichergestellt.It ensures that a drug that is quick should work in two successive strokes e.g. in both The patient's nostrils are sprayed. This is special important for medicines to treat severe pain Diseases or episodes of illness, for example from Migraine. The developed for the treatment of these diseases Medications are very expensive and therefore have to be very precise be used in doses. Your intake through the nasal mucosa is very good and works quickly, but should if possible evenly absorbed through both nostrils to increase the quick effectiveness. there it is particularly important to note that the patients who e.g. of a migraine attack, severe pain are cramped and therefore a safe and uncomplicated Function of the discharge device is essential. all of this is by the multi-stroke discharge device according to the invention regardless of any external conditions.

Die Druckpunktsicherung kann wenigstens eine Sollbruchstelle enthalten. Besonders bevorzugt ist sie an einem einschnappbaren Ring vorgesehen, der z.B. an einer einen Betätigungsdrücker bildenden, den Medienbehälter aufnehmenden Hülse über zerstörbare Materialbrücken angeformt ist. Dieser einschnappbare Ring ermöglicht es, die Materialbrücken an einem der beiden zusammenzufügenden Teile vorzusehen, wobei dann nach der Trennung der Materialbrücken der an dem anderen Teil eingeschnappte Ring an diesem verbleibt. The pressure point safety device can have at least one predetermined breaking point contain. It is particularly preferred for a snap-on type Ring provided which e.g. on a push button forming, receiving the media container over destructible material bridges is formed. This snap-in Ring enables the material bridges on one of the provide two parts to be joined, then according to the separation of the material bridges on the other part snapped ring remains on this.

Der den ersten Hub beendende Anschlag kann Anschlagelemente an den Ring tragenden Speichen aufweisen. Wenn also der Ersthub beendet ist, schlägt das gegenüber dem Grundkörper bewegliche Teil, d.h. die Betätigungshülse mit dem Medienspeicher, an dem festen Anschlag an, so daß sichergestellt ist, daß nicht gleich die zweite Austraghubstufe ausgelöst wird. Dazu wird zuerst die Entriegelungsbetätigung vorgenommen, beispielsweise durch Drehung der beiden relativ zueinander beweglichen Teile gegeneinander. So können also beispielsweise die an der Betätigungshülse verbleibenden, inzwischen von dem Ring getrennten Speichen in eine Position gedreht werden, wo sie im Bereich von Stegen liegen, die ihrerseits über Sollbruchstellen mit dem Grundkörper verbunden sind. Diese Drehposition kann durch vorspringende Wandabschnitte begrenzt sein, um ein "Überdrehen" zu verhindern. Wenn nun eine zweite Betätigung erfolgt, brechen wiederum die Sollbruchstellen zwischen dem Steg und dem Grundkörper, so daß ein mit einer Mindestbetätigungskraft ausgeführter zweiter Austragshub ausgeführt wird.The stop that ends the first stroke can be stop elements have spokes on the ring. So if the First stroke is complete, this beats against the base body moving part, i.e. the actuating sleeve with the media storage, to the fixed stop so that ensures is that the second discharge stroke stage is not triggered immediately becomes. To do this, the unlocking operation is first carried out, for example by rotating the two relative to each other moving parts against each other. So for example those remaining on the actuating sleeve spokes now separated from the ring into one position be rotated where they lie in the area of webs which in turn connected to the base body via predetermined breaking points are. This rotational position can be caused by projecting wall sections be limited to prevent over-turning. If you press it a second time, it will break again Predetermined breaking points between the web and the base body, see above that one with a minimum actuation force second discharge stroke is carried out.

Insbesondere für pharmazeutische Anwendungen ist es wichtig, daß der Medienspeicher bis zur ersten Benutzung hermetisch verschlossen ist. Dies kann dadurch geschehen, daß der Medienspeicher, meist eine zylindrische Glasampulle, durch einen Stopfen aus gummiartigem Material verschlossen ist, der beim ersten Austragshub von einer hohlen Nadel durchstochen wird, die somit eine Art Auslaßventil bildet. Der mit ihr verbundene bzw. von ihr gebildete Austragskanal bleibt nach dem ersten Hub offen, so daß bei dem darauffolgenden zweiten Hub sofort die Zerstäubung beginnen kann.For pharmaceutical applications in particular, it is important that the media storage is hermetic until first use is closed. This can be done in that the Media storage, usually a cylindrical glass ampoule a plug made of rubber-like material is closed, the pierced by a hollow needle during the first discharge stroke , which thus forms a kind of exhaust valve. The one with her the discharge channel connected or formed by it remains open on the first stroke, so that on the subsequent second Stroke the atomization can begin immediately.

Die WO 93/00172 zeigt bei einem Einmal-Zerstäuber anderer Bauart einen sich an einen Stutzenabschnitt anschließenden Auslaßrüssel mit geringerem Querschnitt. WO 93/00172 shows a disposable atomizer for others Type one adjoining a nozzle section Outlet trunk with a smaller cross-section.

Besonders bei der Applikation eines Medikamentes in die Nasenlöcher ist es oft wichtig, den Sprühstrahl gezielt auf therapeutisch besonders günstige Stellen zu richten. Die Erfindung bezweckt daher ferner, eine Ausbringvorrichtung so auszubilden, daß die Applikation auf bestimmte Stellen innerhalb von Körperöffnungen, insbesondere auch schwer zugängliche Stellen, zu ermöglichen. Zu diesem Zweck kann sich an einen Stutzenabschnitt des Grundkörpers ein gegenüber diesem im Durchmesser erheblich reduzierter, dünner und langer Auslaßrüssel anschließen, an dessen Ende die Auslaßöffnung vorzugsweise in Form eines Sprühdüse angeordnet ist.Especially when applying a drug in the It is often important to nostrils to target the spray to judge particularly favorable therapeutic points. The The invention therefore also aims to provide a spreading device train that application to specific places inside body openings, especially difficult accessible places. For this purpose opposite one of a nozzle section of the base body this significantly reduced in diameter, thinner and Connect the long outlet nozzle to the end of the outlet opening preferably arranged in the form of a spray nozzle is.

Damit ist es insbesondere möglich, den Auslaßrüssel in einem Nasenkanal, insbesondere dem inneren Nasenloch zur Ausbringung eines Medikaments einzuführen, vorzugsweise eines Impfsbzw. Immunisierungsmittels gegen Erkältungskrankheiten, wie Grippe. Es ist zwar bereits bekannt, Pharmazeutika auf die Nasenschleimhäute zu applizieren und sie somit rasch und ohne Belastung des Magen/Darm-Traktes vom Körper aufnehmen zu lassen, jedoch ist es bei vielen Medikamenten, insbesondere den beschriebenen Impfstoffen gegen Erkältungskrankheiten, erforderlich, zumindest aber vorteilhaft, sie auf bestimmte Bereiche der Nasenhöhle zu applizieren, beispielsweise auf die Nasenmuscheln (conchae nasi). Die beschriebene Form des Auslaßrüssels ermöglicht die Einführung bis in diesen Bereich.This makes it possible in particular to have the outlet proboscis in one Nasal canal, especially the inner nostril for delivery to introduce a drug, preferably a vaccine. Immunization against colds, such as Flu. While it is already known to target pharmaceuticals To apply nasal mucous membranes and thus quickly and without Absorbing gastrointestinal tract load from the body let, however, it is with many medications, especially the described vaccines against colds, required, but at least advantageous, to specific them Apply areas of the nasal cavity, for example the turbinates (conchae nasi). The described form of Exhaust proboscis allows the introduction into this area.

Um eine Einführung des Auslaßrüssels in die entsprechenden, gekrümmten Bereiche der Nasenhöhle zu ermöglichen, kann er eine Abwinklung, wie eine Krümmung, einen Knick o.dgl. aufweisen oder abgewinkelt von dem Stutzenabschnitt abzweigen. Er kann selbst auch elastisch oder plastisch flexibel, d.h. biegsam sein, so daß er sich bei der Einführung in einen Nasenkanal selbst diesem anpaßt.In order to introduce the outlet proboscis into the corresponding, He can allow curved areas of the nasal cavity a bend, such as a curve, a kink or the like. have or branch off at an angle from the nozzle section. It can itself be elastic or plastically flexible, i.e. be pliable so that when it is introduced into a Adapts itself to this.

Bei einem somit relativ langen Rüssel, der wegen des geringen Durchmessers von meist unter 5 mm (vorzugsweise 2 - 4 mm) bei einer Länge von mehr als 10 mm (vorzugsweise 20 - 30 mm) die eigentliche Ausbringeinrichtung, d.h. meist eine Schubkolbenpumpe, nicht enthalten kann, ergibt sich das Problem des Totraums, der nicht nur das meist sehr wertvolle Medikament nutzlos aufnimmt, sondern vor allem auch durch Aufweitung unter dem Pumpendruck die Spontanität des Druckaufbaus behindert. Dies kann erfindungsgemäß dadurch gelöst werden, daß der Auslaßrüssel einen Innenkanal aufweist, der weitgehend, bis auf wenigstens einen Leitungskanal für das Medium, von einem Füllstück ausgefüllt ist. Dessen an die Auslaßöffnung angrenzende Stirnseite kann mit der Auslaßöffnung zusammen Abgrenzung von Sprühdüsen-Wirbelkanälen bilden, wobei diese Wirbelkanäle als spiralförmige Nuten in dieser Sirnseite enthalten sein können.In the case of a relatively long proboscis because of the small Diameter of usually less than 5 mm (preferably 2 - 4 mm) a length of more than 10 mm (preferably 20-30 mm) actual spreading device, i.e. usually a push piston pump, cannot contain, there arises the problem of Dead space, which is not only the mostly very valuable drug absorbs uselessly, but above all through expansion the spontaneity of the pressure build-up under the pump pressure with special needs. According to the invention, this can be solved by that the outlet trunk has an inner channel that largely except for at least one line channel for the medium, is filled by a filler. Its at the outlet opening adjacent end face can with the outlet opening together delimit spray nozzle swirl channels, these vertebral canals as spiral grooves in this Front side can be included.

Bei einer bevorzugten Ausführungsform wird ein Einweg-Zweifachzerstäuber zur Ausgabe von zwei aufeinanderfolgenden Teilchargen als Spray geschaffen. Er weist an einem Grundkörper einen vorspringenden Nasenadapter mit Düse, Betätigungsschultern zur Auflage von zwei Fingern und einen in den Grundkörper hineindrückbaren Betätigungsteil mit einer Betätigungshülse und einem darin gehaltenen Medienspeicher auf, dessen Verschluß-Kolbenstopfen von einer Hohlnadel durchstochen werden kann. An der Betätigungshülse ist ein Ring über Sollbruchstellen mittels Speichen angebracht, der bei einer ersten Betätigung unter Aufrechterhaltung eines Mindest-Betätigungsdruckes abreißt. Die Speichen schlagen an einem Anschlag an und begrenzen dadurch den ersten Teilhub. Durch Drehung der Betätigungshülse wird der Betätigungsabschnitt in Startposition für die zweite Hubstufe gebracht. Dort werden mittels Materialbrücken eingesetzte Zwischenstege ausgebrochen, wodurch auch der zweite Teilhub unter Aufrechterhaltung einer Mindestbetätigungskraft erfolgt.In a preferred embodiment, a disposable double atomizer to output two consecutive Partial batches created as a spray. He points to a body a protruding nose adapter with nozzle, actuation shoulders to rest two fingers and one in the Basic body pushable actuating part with a Actuating sleeve and a media storage held therein on, the sealing plunger plug of a hollow needle can be pierced. There is a on the actuating sleeve Ring attached over predetermined breaking points by means of spokes with a first actuation while maintaining a Minimum actuation pressure breaks off. The spokes hit stop and thereby limit the first partial stroke. By turning the actuating sleeve, the actuating section becomes brought into the start position for the second stroke level. There are intermediate webs inserted by means of material bridges broken out, which also maintains the second partial stroke a minimum operator.

Diese und weitere Merkmale gehen außer aus den Ansprüchen auch aus der Beschreibung und den Zeichnungen hervor, wobei die einzelnen Merkmale jeweils für sich allein oder zu mehreren in Form von Unterkombinationen bei einer Ausführungsform der Erfindung und auf anderen Gebieten verwirklicht sein und vorteilhafte sowie für sich schutzfähige Ausführungen darstellen können, für die hier Schutz beansprucht wird. Die Unterteilung der Anmeldung in einzelne Abschnitte sowie Zwischen-Überschriften beschränken die unter diesen gemachten Aussagen nicht in ihrer Allgemeingültigkeit.These and other features go beyond the claims also from the description and the drawings, wherein the individual features individually or separately several in the form of sub-combinations in one embodiment of the invention and in other fields be and advantageous as well as protective designs can represent, for which protection is claimed here. The division of the application into individual sections as well Inter-headings limit those made under them Statements are not generally applicable.

KURZBESCHREIBUNG DER ZEICHNUNGENBRIEF DESCRIPTION OF THE DRAWINGS

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im Folgenden näher erläutert. In den Zeichnungen zeigen:

Fig. 1
einen Längsschnitt durch eine Austragvorrichtung,
Fig. 2
ein stark vergrößertes Detail des Bereiches II in Fig. 1,
Fig. 3
eine Ansicht der Betätigungshülse und des angeformten Ringes, in Fig. 1 gemäß Pfeil III von unten gesehen,
Fig. 4
einen Schnitt nach der Linie IV in Fig.1,
Fig. 5
einen Schnitt nach der Linie V in Fig. 4 und
Fig. 6 und 7
Teillängsschnitte durch Varianten einer Austragvorrichtung.
An embodiment of the invention is shown in the drawings and is explained in more detail below. The drawings show:
Fig. 1
a longitudinal section through a discharge device,
Fig. 2
2 shows a greatly enlarged detail of area II in FIG. 1,
Fig. 3
2 shows a view of the actuating sleeve and the molded ring, seen from below in FIG. 1 according to arrow III,
Fig. 4
2 shows a section along line IV in FIG. 1,
Fig. 5
a section along the line V in Fig. 4 and
6 and 7
Partial longitudinal cuts through variants of a discharge device.

BESCHREIBUNG DES AUSFÜHRUNGSBEISPIELSDESCRIPTION OF THE EMBODIMENT (Fig. 1 bis 5)(Fig. 1 to 5)

Die in der Zeichnung gezeigte Austragvorrichtung 11 weist einen Grundkörper 12 auf, der aus Kunststoffspritzguß besteht. Er hat einen zentralen langgestreckten Stutzenabschnitt 13, der in seiner Form und Länge dem jeweiligen Anwendungszweck angepaßt ist. Im Vorliegenden Fall ist es ein sogenannter Nasenadapter, der dazu gedacht ist, in ein Nasenloch eines Patienten eingeführt zu werden. An seinem oberen Enden weist er eine Austragöffnung 14 in Form einer Sprühdüse mit vorgeschalteter Winkelkammer auf. An diese anschließend ist im Inneren des hohlen Stutzenabschnittes 13 ein hülsenförmiger Kolbenstangenträger 15 vorgesehen, in den eine ebenfalls hohle Kolbenstange 16 unten eingepreßt ist. In sie wiederum ist ein Kolbenstößel 17 in Form einer an ihrem unteren freien Ende angeschrägten hohlen Stahlnadel ähnlich einer Injektionsnadel eingepreßt, und zwar mittels einer die Nadel umgebenden Dichtung 18. Dieser nadelförmige Kolbenstößel 17 durchdringt die Kolbenstange vollständig und ist bis an die Austragöffnung 14 heran geführt, so sein Inneres einen Austragkanal 19 bildet.The discharge device 11 shown in the drawing has a base body 12, which consists of plastic injection molding. It has a central elongated neck section 13, the shape and length of each Application is adapted. In the present case it is a so-called nose adapter, which is intended in one Nostril to be inserted into a patient. On his it has a discharge opening 14 in the form of an upper end Spray nozzle with an upstream angle chamber. To this is then inside the hollow nozzle section 13th a sleeve-shaped piston rod carrier 15 is provided in the a likewise hollow piston rod 16 is pressed in at the bottom. In it in turn is a piston tappet 17 in the form of one on it lower free end similar to beveled hollow steel needle an injection needle, by means of a Needle surrounding seal 18. This needle shaped plunger 17 completely penetrates the piston rod and is led up to the discharge opening 14, so its interior forms a discharge channel 19.

Das auszugebende pharmazeutische Medium 24 ist in einem Medienbehälter 20 vorgesehen, der als zylinderförmiger, unten geschlossener und oben offener, mit seitlichem Flansch versehener Glasbehälter ähnlich einer Ampulle ausgebildet ist. Er bildet gleichzeitig den Medienspeicher und die Pumpenkammer 23, so daß seine Innenwände gleichzeitig die Zylinderlaufbahn einer Schubkolbenpumpe 46 sind. Ihr Kolben 21 wird durch einen Kolbenstopfen gebildet, der aus Gummi oder gummiartigem Material besteht und in der Mitte eine Membran 22 in Form eines Mittelstückes mit geringer Wandstärke aufweist, die von dem Kolbenstößel 17 durchstoßen werden kann.The pharmaceutical medium 24 to be dispensed is in one Media container 20 provided as a cylindrical, below closed and open at the top, with side flange provided glass container formed like an ampoule is. It forms both the media storage and the Pump chamber 23 so that its inner walls simultaneously the Are cylinder barrel of a thrust piston pump 46. Your butt 21 is formed by a piston plug made of rubber or rubber-like material and one in the middle Membrane 22 in the form of a middle piece with a small wall thickness has, which are pierced by the piston tappet 17 can.

Der Medienbehälter 20 ist in einer Betätigungs- und Aufnahmehülse 25 aufgenommen, die in Form einer sehr lang gestreckten unten geschlossenen Kunststoff-Hülse mit inneren Stützrippen für den Medienbehälter ausgebildet ist. Ihr geschlossener Boden 26 bildet eine Betätigungsfläche für die Austragvorrichtung 11. Sie ist zwischen Rippen 45 im Inneren des Stutzenabschnittes zusammen mit dem Medienbehälter geführt und darin axial beweglich.The media container 20 is in an actuating and receiving sleeve 25 added, which is in the form of a very elongated plastic sleeve closed at the bottom with inner support ribs is designed for the media container. Your closed Bottom 26 forms an actuating surface for the Discharge device 11. It is between ribs 45 inside of the nozzle section together with the media container guided and axially movable therein.

Am Außenumfang ist eine erste Druckpunktsicherung 27 angeformt. Sie besteht aus drei Verbindungsstegen oder Speichen 29 (Fig. 3), die über Materialbrücken 30 mit einem umlaufenden äußeren Ring 28 verbunden sind. Dieser ist in einer durch eine Führungsnut 42 bestimmten Umfangsposition mit seinem Außenumfang in einer Schnappverbindung 32 aufgenommen, die in einem zylinderförmigen Basisabschnitt 34 des Grundkörpers, und zwar an dessen unterem Rand, vorgesehen ist. Die Materialbrücken sind so ausgelegt, daß sie bei Aufbringung eines vorgegebenen Betätigungsdruckes brechen (Fig. 2). Eine Innenrippe 48 des Basisabschnittes 34 legt den Ring 28 in seiner axialen Position fest.A first pressure point safety device 27 is formed on the outer circumference. It consists of three connecting bars or spokes 29 (Fig. 3), the material bridges 30 with a rotating outer ring 28 are connected. This is in one go a guide groove 42 with its circumferential position Outer circumference recorded in a snap connection 32, which in a cylindrical base section 34 of the base body, namely at its lower edge. The material bridges are designed so that when a break predetermined operating pressure (Fig. 2). A Inner rib 48 of the base section 34 places the ring 28 in its axial position.

Der Basisabschnitt 34 erstreckt sich von Betätigungsschultern 35 abwärts, die als insgesamt ovale Fläche (Fig. 4) den mittleren Stutzenabschnitt 13 umgeben und nach unten einen versteifenden Rand 36 aufweisen.The base portion 34 extends from actuation shoulders 35 down, which as the total oval surface (Fig. 4) surrounded middle nozzle section 13 and down one have stiffening edge 36.

Die Speichen 29 haben, wie aus Fig. 3 zu erkennen ist, seitliche Verstärkungen und sind in axialer Richtung durch Stützrippen 31 versteift. Die äußere Oberfläche der Betätigungshülse 25 weist eine äußere Handhabe in Form einer Riffelung auf.As can be seen from FIG. 3, the spokes 29 have lateral reinforcements and are in the axial direction Support ribs 31 stiffened. The outer surface of the actuator sleeve 25 has an outer handle in the form of a Corrugation on.

Im Inneren des Basisabschnittes 34 sind aus Fig. 4 zu erkennende Wandungen 44 vorgesehen, die nach unten ragen. Sie bilden drei Bogenabschnitte 49 und erstrecken sich dann jeweils beidseitig zum Umfang des Basisabschnittes nach außen, so daß sie zwischen sich Schlitze 43 bilden. Zwischen deren Wandungen 44 befinden sich Plättchen oder Stege 40, die eine zweite Druckpunktsicherung 39 für einen zweiten Hub bilden. Sie sind über Materialbrücken 41 mit den Wandungen verbunden. Eine der Wandungen 44 ist verlängert und bildet einen Drehanschlag 38, an dem eine der Speichen 29 bei einer Drehung anschlägt.4 can be seen in the interior of the base section 34 Walls 44 are provided which protrude downwards. she form three arc sections 49 and then extend on both sides to the circumference of the base section outside so that they form slots 43 between them. Between whose walls 44 are platelets or webs 40 which a second pressure point safety device 39 for a second stroke form. They are over material bridges 41 with the walls connected. One of the walls 44 is extended and forms a rotary stop 38 on which one of the spokes 29 at one Rotation strikes.

FUNKTIONFUNCTION (Fig.1 bis 5)(Fig. 1 to 5)

Bei der Herstellung der Austragvorrichtung werden die Teile in der in Fig. 1 gezeigten Lage zusammengebaut. Der mit dem Medium 24 gefüllte Medienbehälter 20 ist in der Betätigungshülse 25 aufgenommen und seine Pumpenkammer 23 ist durch den Kolbenstopfen 21 dicht verschlossen. Er liegt in einem Abstand von der Spitze des Kolbenstößels 17, wenn sich die Betätigungshülse in der Ausgangslage befindet, die dadurch definiert ist, daß der Ring 28 der ersten Druckpunktsicherung 27 in der Schnappvorrichtung 32 eingerastet ist und an der Unterseite der Rippen 48 anliegt.When manufacturing the discharge device, the parts assembled in the position shown in Fig. 1. The one with the Medium 24 filled media container 20 is in the actuating sleeve 25 added and its pump chamber 23 is through the Piston plug 21 tightly closed. It is in one Distance from the tip of the piston rod 17 when the Actuating sleeve is in the starting position, this is defined that the ring 28 of the first pressure point securing 27 is engaged in the snap device 32 and on the Bottom of the ribs 48 abuts.

Die so entstandene gebrauchsfertige Austragvorrichtung wird nun bei Bedarf von dem Benutzer ergriffen, indem er zwei Finger auf die Betätigungsschultern 35 legt und mit dem Daumen auf die Betätigungsfläche 26 drückt. Bei der Aufbringung eines ausreichenden Betätigungsdruckes reißen die Materialbrücken 30, die eine Sollbruchstelle bilden, so daß die Betätigungshülse nun mit vorbestimmter Kraft und dementsprechend hoher Betätigungsgeschwindigkeit in Fig. 1 nach oben bewegt wird. Nach Durchlaufen des vom Abstand der Nadel 17 von der Membran 22 vorgegebenen Leerweges durchsticht die Nadel die Membran, die Kolbenstange 16 drückt den Kolbenstopfen in den Medienbehälter 20 und das Medium 24 wird über den Austragkanal 19 in der Nadel und die Austrittsöffnung 14 als Sprühnebel freigegeben. Dies geschieht, während der Patient den Stutzenabschnitt 13 in eines seiner Nasenlöcher eingeführt hatte.The resulting ready-to-use discharge device is now seized by the user if necessary by using two Fingers on the actuation shoulders 35 and with the Presses thumb on the actuating surface 26. When applying a sufficient actuation pressure tear the Material bridges 30, which form a predetermined breaking point, so that the actuating sleeve now with a predetermined force and accordingly high operating speed in Fig. 1 after is moved up. After going through the distance from the needle 17 of the empty path predetermined by the membrane 22 pierces the Needle the membrane, the piston rod 16 presses the piston plug in the media container 20 and the medium 24 is on the Discharge channel 19 in the needle and the outlet opening 14 as Spray released. This happens while the patient the neck portion 13 inserted into one of its nostrils would have.

Am Ende dieser ersten Austraghub-Stufe, bei der genau bemessen die Hälfte des Mediums ausgetragen ist, schlagen die Speichen 29 an dem Anschlag 37 an der Unterseite der Wandungen 44 an und begrenzen somit den Austrag. Der Austragsdruck bricht schlagartig zusammen und die Zerstäubung hört ohne Nachtropfen auf. At the end of this first discharge stroke stage, at which precisely dimensioned half of the medium is discharged, beat the Spokes 29 on the stop 37 on the underside of the walls 44 and thus limit the discharge. The discharge pressure suddenly breaks down and the atomization stops without Dripping on.

Der Patient kann nun den Stutzenabschnitt 13 in sein zweites Nasenloch einführen, nachdem er die Austragvorrichtung auf die zweite Austragshubstufe vorbereitet hat. Dies geschieht dadurch, daß die Betätigungshülse 25 mittels der Handhabe 33 (Riffelung) um ca. 30° gedreht hat. Aus dem Vergleich der Figuren 3 und 4 ist zu erkennen, daß die Speichen 29 jeweils unter ca. 30° Abstand zu den Schlitzen 43 in den Wandungen 44 stehen. Sie waren am Ende der ersten Austragshub-Stufe etwa in der Mitte der Abschnitte 49 an diesen angeschlagen. Sie werden nun durch die Drehung soweit gedreht, bis sie über den Schlitzen 43 stehen. Als Drehanschlag dient dazu der nach unten verlängerte Wandungsabschnitt, der den Drehanschlag 38 bildet.The patient can now move the nozzle section 13 into its second Insert nostril after opening the delivery device has prepared the second discharge stroke. this happens in that the actuating sleeve 25 by means of the handle 33rd (Corrugation) has rotated by approx. 30 °. From the comparison of the Figures 3 and 4 can be seen that the spokes 29 each at a distance of approximately 30 ° to the slots 43 in the walls 44 stand. They were about at the end of the first discharge stroke stage struck on these in the middle of the sections 49. she are now rotated by the rotation until they over the Slots 43 stand. The serves as a turning stop Wall section extended at the bottom, which contains the rotary stop 38 forms.

Wenn jetzt wiederum die Betätigungshülse 25 in Fig. 1 nach oben gedrückt wird, so legen sich die Speichen 29 auf die Stege 40. Bei Erreichen des vorgegebenen Betätigungsdruckes für die zweite Austragshubstufe brechen auch dort die Materialbrücken 41. Die zweite Austraghubstufe wird auch wie die erste ausgeführt, indem die untere Stirnkante der Kolbenstange 16 den Kolbenstopfen 21 weiter in den Medienbehälter 20 hineindrückt und damit das Medium nach Art einer Schubkolbenpumpe durch den Austragkanal 19 fördert.If now again the actuating sleeve 25 in Fig. 1 after is pressed above, the spokes 29 lie on the Bars 40. When the specified actuation pressure is reached the material bridges also break there for the second discharge stroke stage 41. The second discharge stroke level is also like that first run by the lower front edge of the piston rod 16 the piston plug 21 further into the media container 20 pushes in and thus the medium in the manner of a thrust piston pump through the discharge channel 19.

Beim dargestellten Ausführungsbeispiel ist damit die Funktion beendet. Es handelt sich also um eine Zweimal-Einwegpumpe, die nach einmaliger Benutzung entsorgt wird. Da mit Ausnahme des Medienspeichers 20 und der Stahlnadel 17, sowie ggf. des Kolbenstopfens 21 alle Teile aus Kunststoff-Spritzguß bestehen, und zwar vorzugsweise aus dem gleichen Material, ist ein Recycling möglich.In the illustrated embodiment, this is the function completed. So it's a two-way disposable pump, which is disposed of after a single use. Because with one exception the media storage 20 and the steel needle 17, and possibly the Piston plug 21 all parts are made of plastic injection molding, preferably made of the same material recycling possible.

Die Austragvorrichtung gestattet es, die einzelnen Teilchargen mit großer Dosiergenauigkeit und -zuverlässigkeit auszugeben; falls gewünscht aus in bemessen unterschiedlichen Mengen. Die Teilhübe sind wegen des bei der Erst-Betätigung zu durchlaufenden Leerwegen unterschiedliche, was bei der Gestaltung berücksichtigt wird. Es ist möglich, die Austragvorrichtung für andere Zwecke zu adaptieren, beispielsweise für Medikamente, die für Augen oder andere paarig oder mehrfach vorkommende Anwendungsorte bestimmt sind. Auch für mehrere aufeinanderfolgende Applikationen in Form von Spray oder anderer Ausgabeform, beispielsweise die Behandlung in Abständen einiger Minuten auf den gleichen Applikationsort, ist die Vorrichtung einsetzbar.The discharge device allows the individual partial batches dispense with great dosing accuracy and reliability; if desired in different sizes Amounts. The partial strokes are because of the first actuation to pass through empty paths different, what with the Design is taken into account. It is possible to use the discharge device to adapt for other purposes, for example for medication for eyes or other paired or multiple occurring application locations are determined. Also for several successive applications in the form of spray or other output form, for example the treatment in Intervals of a few minutes on the same application site, the device can be used.

BESCHREIBUNG DES AUSFÜHRUNGSBEISPIELSDESCRIPTION OF THE EMBODIMENT (Fig. 6 und 7)(Figs. 6 and 7)

Die Austragvorrichtung 11 entspricht bis auf die nachstehend erläuterten Unterschiede der nach den Fig. 1 bis 5. Auf deren Beschreibung wird Bezug genommen. Gleiche Teile tragen gleiche Bezugszeichen.The discharge device 11 corresponds to the one below explained differences of that according to FIGS. 1 to 5. On their description is referred to. Wear the same parts same reference numerals.

Der Stutzenabschnitt 13 verjüngt sich zu seinem Ende hin und geht in einen Auslaßrüssel 50 über, der einstückig mit diesem ausgebildet ist und langgestreckt und dünn ist. Sein Durchmesser beträgt zwischen 3 und 4 mm oder darunter, jedoch meist nicht mehr als 5 mm, und er ist über 10 mm, vorzugsweise zwischen 20 und 30 mm lang. Das Verhältnis Rüssellänge zu Durchmesser beträgt ca 7 und sollte vorteilhaft über 5 betragen. Er ist kreisrund zylindrisch und hat an seinem Ende die Auslaßöffnung 15 in Form einer Sprühdüse. Diese ist ein in den Auslaßrüssel 50 eingeformtes Loch der kleinen Durchmessers, das zusammen mit Wirbelkanälen 51, die in das stirnseitige Ende eines Füllstücks 52 eingeformt sind, eine Düse mit kegelförmigem Sprühstrahl bildet. The nozzle section 13 tapers towards its end and goes into an outlet trunk 50, which is integral with this is trained and elongated and thin. Its diameter is between 3 and 4 mm or less, however usually not more than 5 mm, and it is preferably over 10 mm between 20 and 30 mm long. The ratio trunk length to diameter is about 7 and should advantageously be over 5 be. It is circular cylindrical and has at its end the outlet opening 15 in the form of a spray nozzle. This is a hole of small diameter formed in the outlet trunk 50, that along with vertebral canals 51 that go into that front end of a filler 52 are formed, a Forms nozzle with conical spray.

Das Füllstück 52 ist einstückig mit der Kolbenstange 16 ausgebildet und hat an seiner Außenseite Leitungskanäle 53 sehr geringen Querschnittes in Form von eingeformten Längsnuten. Das Längsstück füllt einen Innenkanal 54 des hohlen Auslaßrüssels 50 aus, was den Totraum für das austretende Medium minimiert. Die Leitungskanäle 53 sind über eine durch eine Durchmesserveringerung der Einheit Füllstück/Kolbenstange gebildete Verteilerkammer 53 an die Innenbohrung der Nadel 17 angeschlossen.The filler 52 is integral with the piston rod 16 formed and has conduit channels 53 on its outside very small cross section in the form of molded longitudinal grooves. The longitudinal piece fills an inner channel 54 of the hollow one Exhaust nozzle 50 from what the dead space for the emerging Medium minimized. The line channels 53 are through one a reduction in the diameter of the filler / piston rod unit formed distribution chamber 53 to the inner bore of the needle 17 connected.

Bei Fig. 7 ist der Auslaßrüssel 50 flexibel biegsam, und zwar im Bereich einer gelenkartigen Knickstelle 56, die in einem mittleren Bereich des Auslaßrüssels liegt. Sie ist dadurch gebildet, daß das Füllstück 52a im Bereich der Knickstelle im Durchmesser soweit reduziert ist, daß es aufgrund der Flexibilität seines Materials leicht biegsam ist. Auch das Material des Auslaßrüssels ist soweit flexibel, daß es eine gewisse schlauchartige Biegung zuläßt. Gegebenenfalls könnten zur Erleichterung der Biegung dort balgartige Falten eingeformt sein. Es ist auch möglich, den gesamten Auslaßrüssel durch entsprechende Materialwahl elastisch oder plastisch biegsam zu machen. Es ist auch möglich, den Auslaßrüssel permanent zu krümmen oder abzuwinkeln oder die Ausrichtung der Sprühdüse anders als in Achsrichtung zu wählen.In Fig. 7, the outlet nozzle 50 is flexible, namely in the area of an articulated kink 56, which in a middle area of the outlet trunk. It is through it formed that the filler 52a in the area of the kink in Diameter is reduced so much that it is due to the flexibility of its material is slightly flexible. The material too of the outlet proboscis is so flexible that it is a allows some hose-like bend. If necessary, could bellows-like folds are molded in there to facilitate bending his. It is also possible to remove the entire trunk through appropriate choice of materials elastic or plastic to make it pliable. It is also possible to use the outlet proboscis to constantly bend or bend or align choose the spray nozzle differently than in the axial direction.

FUNKTIONFUNCTION (Fig. 6 und 7)(Figs. 6 and 7)

Zum Applizieren eines Medikaments in die Nasenhöhle und ihre Seitenkanäle, insbesondere auf die Nasenmuscheln (conchae nasi) wird der Auslaßrüssel vom Arzt oder einer anderen befähigten Person eingeführt und entsprechend ausgerichtet. Danach wird die Austragvorrichtung in der vorher beschriebenen Weise betätigt um einen ersten Hubabschnitt auszuführen. Danach wird der Auslaßrüssel in das zweite Nasenloch eingeführt und der zweite Hubabschnitt ausgelöst, nachdem dieser ggf. entriegelt wurde.For applying a drug to the nasal cavity and its Side channels, especially on the turbinates (conchae nasi) becomes the outlet trunk from the doctor or another qualified person introduced and aligned accordingly. Then the discharge device is in the previously described Actuated to perform a first lifting section. Then the outlet proboscis is inserted into the second nostril and the second stroke section triggered after this unlocked if necessary.

Bei einem fest abgewinkelten Auslaßrüssel kann durch entsprechende Gestaltung der Finger-Auflageschultern 35 eine bestimmte Handhaltung vorgegeben sein, so daß der Arzt automatisch die richtige Stelle trifft. Das gleiche gilt für eine exzentrische Düsenanordnung. Bei einem plastisch verformbaren Auslaßrüssel kann der Arzt entsprechend seiner Erfahrung den Rüssel vorher ausrichten und bei einem elastisch biegsamen Rüssel kann dieser sich beim Einführen in die Nase entsprechend formen. Hier kann die Aufbringung eines Gleitmittels auf den Auslaßrüssel helfen.With a fixed angled outlet proboscis by appropriate Design of the finger support shoulders 35 a certain Hand position must be specified so that the doctor automatically hits the right place. The same goes for one eccentric nozzle arrangement. With a plastically deformable The doctor can, according to his experience, discharge nozzle Align the trunk beforehand and with an elastic and flexible one Proboscis can become corresponding when inserted into the nose to form. Here the application of a lubricant help on the outlet proboscis.

Mit der speziellen Form der Austragvorrichtung mit Auslaßrüssel ist eine sehr wirksame Aufbringung auf bestimmte Bereiche der Nasenschleimhaut oder in bestimmte Nasenbereiche und Nasenhöhlen möglich, wobei die Ausführung mit zwei aufeinanderfolgenden Hüben der nasalen Applikation ebenfalls dient.With the special shape of the discharge device with outlet nozzle is a very effective application to certain areas the nasal mucosa or in certain areas of the nose and Nasal cavities possible, the execution with two successive Strokes of the nasal application also serves.

Claims (20)

  1. Discharge device for flowable media using a thrust piston pump (46), with a base body (12) and a medium reservoir (20), which forms the pump chamber (23) of the thrust piston pump (46) and in which a pump piston (21) is movable over at least two discharge stroke steps from a starting position and the medium (24) flows via a discharge channel (19) provided in the base body (12) to a discharge opening (14), particularly a spray nozzle and in the starting position and at the start of each further discharge stroke step there is a pressure point protector (27, 39) destructible by a minimum actuating force to be applied, characterized in that a fixed stop (37) separate from the destructible pressure point protector is provided for ending the first discharge stroke step and the pressure point protector (39) for a further discharge stroke step is brought into the release position by an unlocking actuation freeing the stop (37).
  2. Discharge device according to claim 1, characterized in that the pressure point protectors (27, 39) contain at least one predetermined breaking point (30,41).
  3. Discharge device according to claim 1 or 2, characterized in that one of the pressure point protectors (27) contains a snap-in ring (28), which is preferably shaped onto a sleeve (25), which receives the medium container (20) and forms an actuation pusher by means of destructible material bridges (30, 41).
  4. Discharge device according to claim 3, characterized in that one of the stop elements (29) forming the stop is constructed on the spokes (29) carrying the ring (28).
  5. Discharge device according to claim 3 and 4, characterized in that the stop elements (29) forming the stop are reinforced on one side in the downwards direction by a shaped-on rib.
  6. Discharge device according to one of the preceding claims, characterized in that the unlocking actuation takes place by a rotation of the sleeve (35) receiving the medium reservoir (20) forming an actuating pusher.
  7. Discharge device according to one of the preceding claims, characterized in that the pressure point protector (39) for a further discharge stroke step is constructed as at least one and preferably three webs (40) connected by means of predetermined breaking points (41) to the base body and which is in particular located in the vicinity of a slot (43) bounded by walls (44) of the base body (12).
  8. Discharge device according to claim 5 or 6, characterized in that a turning stop (38) for the unlocking actuation is provided and is preferably formed by a projecting wall (44) of the base body (12).
  9. Discharge device according to one of the claims 5 to 7, characterized by a handle (33) for the unlocking actuation, preferably a knurling of the sleeve (35) receiving the medium reservoir (20) and forming an actuation pusher projecting from the base body (12).
  10. Discharge device according to one of the preceding claims, characterized in that the base body (12) has a projecting connecting piece (13) with the discharge opening (14) at the end, actuating shoulders (35) projecting laterally therefrom and a substantially cylindrical base portion (35) which, together with the connecting piece (13), receives the medium reservoir (20) and pressure point protectors (27, 39) and which projects out of the actuating sleeve (25), which can be pressed into the base body (12).
  11. Discharge device according to one of the preceding claims, characterized in that the medium reservoir (20) is tightly sealed in its starting position, but connected at the start of a further discharge stroke step to the discharge channel (19), the discharge device (11) being in particular constructed as a disposable multiple atomizer, preferably as a disposable two-component atomizer for the successive administration of a medicament to the two nostrils of a patient.
  12. Discharge device according to one of the preceding claims, characterized in that for the actuation of the thrust piston pump (46) a piston rod (16) presses into the medium container (20) as a pump piston a piston stopper (21) perforatable by a hollow plunger (17), such as a hypodermic needle, for opening the medium container and for its connection to the discharge channel (19) and which forms a closure for the medium container (20).
  13. Discharge device according to one of the preceding claims, characterized in that an idle path is provided between the starting position and the position in which the medium container (20) is opened.
  14. Discharge device according to one of the preceding claims, characterized in that a base body (12) of the discharge device (11) has a connecting piece (13), to which is connected a thin, long delivery tubule (50) with a much smaller diameter than the connecting piece (13) and on whose end is located the discharge opening (14), preferably in the form of a spray nozzle.
  15. Discharge device according to claim 14, characterized in that the delivery tubule (50) has an inner channel (54), which is largely filled, with the exception of at least one line channel (53) for the medium (24), by a filler (52), whose face adjacent to the discharge opening (14) preferably cooperates with said opening for bounding the spray nozzle vortex channels (51) and in particular contains the same.
  16. Discharge device according to claims 14 or 15, characterized in that, for a length of more than 10 mm, preferably between 20 and 30 mm, the delivery tubule (50) has a diameter below 5 mm, preferably between 3 and 4 mm.
  17. Discharge device according to one of the claims 14 to 16, characterized in that the delivery tubule (50) has a bend, such as a curve, a kink, etc. or branches off in an angled manner from the connecting piece (13) and preferably the bend is formed by a pliable portion (56) of the tubule (50) adapting to the nose channel during insertion into the same.
  18. Discharge device according to one of the claims 14 to 17, characterized in that the delivery tubule (50) is constructed for introduction into a nose channel, particularly the inner nostril and/or for the discharge of a medicament, preferably a vaccine or immunizing agent against common colds, such as influenza.
  19. Discharge device according to one of the claims 14 to 18, characterized in that the discharge opening (14) is constructed for producing a spray jet for wetting the conchae nasi.
  20. Discharge device according to one of the claims 14 to 19, characterized in that the connecting piece (13) contains a piston stopper (16) and a guide channel for a pump cylinder-forming medium container (20).
EP98904040A 1997-01-09 1998-01-08 Discharge device for flowable media using a thrust piston pump Expired - Lifetime EP0951362B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP02007105A EP1219356B1 (en) 1997-01-09 1998-01-08 Discharge device for flowable media using a piston pump
DE29824620U DE29824620U1 (en) 1997-01-09 1998-01-08 Discharge device for flowable media using a push piston pump

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19700437A DE19700437B4 (en) 1996-01-23 1997-01-09 Discharge device for flowable media by means of a piston pump
DE19700437 1997-01-09
DE19723133A DE19723133A1 (en) 1997-06-03 1997-06-03 Discharge device for media
DE19723133 1997-06-03
PCT/EP1998/000061 WO1998030335A1 (en) 1997-01-09 1998-01-08 Discharge device for flowable media using a thrust piston pump

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP02007105A Division EP1219356B1 (en) 1997-01-09 1998-01-08 Discharge device for flowable media using a piston pump
EP02007105.6 Division-Into 2002-03-28

Publications (2)

Publication Number Publication Date
EP0951362A1 EP0951362A1 (en) 1999-10-27
EP0951362B1 true EP0951362B1 (en) 2002-06-19

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Family Applications (3)

Application Number Title Priority Date Filing Date
EP98904040A Expired - Lifetime EP0951362B1 (en) 1997-01-09 1998-01-08 Discharge device for flowable media using a thrust piston pump
EP02007105A Expired - Lifetime EP1219356B1 (en) 1997-01-09 1998-01-08 Discharge device for flowable media using a piston pump
EP98109321A Expired - Lifetime EP0882516B1 (en) 1997-06-03 1998-05-22 Fluid dispenser

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP02007105A Expired - Lifetime EP1219356B1 (en) 1997-01-09 1998-01-08 Discharge device for flowable media using a piston pump
EP98109321A Expired - Lifetime EP0882516B1 (en) 1997-06-03 1998-05-22 Fluid dispenser

Country Status (14)

Country Link
US (2) US6321942B1 (en)
EP (3) EP0951362B1 (en)
JP (2) JP4046769B2 (en)
KR (2) KR100492350B1 (en)
CN (1) CN1103642C (en)
AT (3) ATE475487T1 (en)
AU (2) AU734535B2 (en)
BR (2) BR9807065A (en)
CA (1) CA2277208C (en)
DE (5) DE19723133A1 (en)
DK (2) DK0951362T3 (en)
ES (1) ES2176960T3 (en)
PT (1) PT951362E (en)
WO (1) WO1998030335A1 (en)

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Publication number Publication date
EP0882516B1 (en) 2004-09-29
EP1219356A2 (en) 2002-07-03
ATE277689T1 (en) 2004-10-15
KR20000069945A (en) 2000-11-25
CN1250398A (en) 2000-04-12
AU740121B2 (en) 2001-11-01
WO1998030335A1 (en) 1998-07-16
JP4046769B2 (en) 2008-02-13
US6321942B1 (en) 2001-11-27
BR9807065A (en) 2000-05-02
AU6207598A (en) 1998-08-03
KR100492350B1 (en) 2005-05-31
JPH10338298A (en) 1998-12-22
AU6987498A (en) 1998-12-10
DK0951362T3 (en) 2002-07-15
DE59814459D1 (en) 2010-09-09
ATE475487T1 (en) 2010-08-15
ES2176960T3 (en) 2002-12-01
DE19723133A1 (en) 1998-12-10
DE29824620U1 (en) 2001-11-15
JP2001509070A (en) 2001-07-10
CA2277208C (en) 2007-12-11
EP1219356A3 (en) 2002-08-28
CN1103642C (en) 2003-03-26
DE59804505D1 (en) 2002-07-25
PT951362E (en) 2002-11-29
EP1219356B1 (en) 2010-07-28
KR19990006599A (en) 1999-01-25
AU734535B2 (en) 2001-06-14
EP0951362A1 (en) 1999-10-27
EP0882516A1 (en) 1998-12-09
DE59812015D1 (en) 2004-11-04
ATE219391T1 (en) 2002-07-15
US6059150A (en) 2000-05-09
KR100559101B1 (en) 2006-07-25
CA2277208A1 (en) 1998-07-16
BR9801755A (en) 1999-06-01
DK0882516T3 (en) 2005-01-17

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