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EP1523385B1 - Système de distribution de substances fluides - Google Patents

Système de distribution de substances fluides Download PDF

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Publication number
EP1523385B1
EP1523385B1 EP03720501A EP03720501A EP1523385B1 EP 1523385 B1 EP1523385 B1 EP 1523385B1 EP 03720501 A EP03720501 A EP 03720501A EP 03720501 A EP03720501 A EP 03720501A EP 1523385 B1 EP1523385 B1 EP 1523385B1
Authority
EP
European Patent Office
Prior art keywords
cartridge
delivery system
attachment
injectate
resilient arms
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
EP03720501A
Other languages
German (de)
English (en)
Other versions
EP1523385A1 (fr
Inventor
Barbara MÜLLER
Werner Mannschedel
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.)
Coltene Whaledent GmbH and Co KG
Original Assignee
Coltene Whaledent GmbH and Co KG
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 Coltene Whaledent GmbH and Co KG filed Critical Coltene Whaledent GmbH and Co KG
Publication of EP1523385A1 publication Critical patent/EP1523385A1/fr
Application granted granted Critical
Publication of EP1523385B1 publication Critical patent/EP1523385B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00503—Details of the outlet element
    • B05C17/00506—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00553—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with means allowing the stock of material to consist of at least two different components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00596—The liquid or other fluent material being supplied from a rigid removable cartridge having no active dispensing means, i.e. the cartridge requiring cooperation with means of the handtool to expel the material

Definitions

  • the present invention relates to a dispensing system according to the preamble of claim 1 for fluid substances. More particularly, it relates to a dispensing system comprising a syringe in the form of a cartridge having at least one spray booth provided with an injection piston and an attachment attached to the cartridge at the dispensing end thereof.
  • a double-barreled syringe which comprises a cartridge of two axially parallel juxtaposed Spritzguthuntn with guided injection piston, to which a mixing tip is attached.
  • the attachment is done so far by simply plugging or by a screw connection ("luer lock closure"), in which an internal or external thread is provided on the piston syringe, in which engages the provided with a complementary complementary mixing syringe.
  • a dispensing system consisting of a cartridge and an attachment for fluid substances, in which at the discharge end of the cartridge as an attachment a mixing tip or a closure can be attached.
  • a snap closure is provided on this, which can be latched with locking recesses on the cartridge.
  • the US-B-6,394,314 discloses a fluid substance dispensing system also formed of a cartridge and an attachment in the form of a mixing tip or closure.
  • the attachment is provided with a bayonet lock with which the attachment to the cartridge can be releasably attached.
  • the object of the present invention is to overcome the disadvantages of the known in the prior art solutions for attaching an attachment to a syringe. This object is achieved by the features of the independent claim. Advantageous embodiments of the invention are specified in the subclaims.
  • a fluid substance delivery system comprising a syringe and an attachment attached thereto.
  • the syringe comprises a cartridge having at least one spit chamber provided with an injection piston. If the cartridge has a plurality of spray-material chambers, then injection-molded pistons can either be inserted individually or jointly into the spray-material chambers or pulled out of them, the injection-molded pistons advantageously being connected together by a suitable connecting element in the latter case.
  • a locking clip is arranged, to which the attachment is fastened by means of a releasable snap closure.
  • a characteristic feature of the invention provides that the attachment is secured by means of the releasable snap closure to the cartridge.
  • the releasable snap closure can basically be designed in any way, as long as it is ensured that when snapping the snap closure any increase by elastic-plastic deformation of the cartridge and / or attachment snaps into any depression.
  • the snap closure in the form of an attached to the attachment sliding sleeve with inner collar, which is pushed over a mounted on the outside of the cartridge outer collar present.
  • the latching of the snap closure is done with a vocal Einrastge Hursch so that the engagement of the operator can be controlled acoustically.
  • two hooks are formed on the attachment for its attachment to the cartridge by means of a snap closure, which are substantially diametrically opposed to each other.
  • the hooks each engage in undercut recesses assigned to them, wherein each recess is arranged on a spring arm which is formed on the latching clip and which is elastically loaded when deflected out of its rest position.
  • the hooks can get into engagement with the undercut depressions, this must first be overcome, the elastic spring force of the spring arms. If the hooks are in engagement with the undercut depressions, the elastic spring force of the spring arms likewise ensures that the hooks are secured against loosening.
  • the spring arms are designed in particular as sections of the latching clip fastened on the delivery-side end of the cartridge, whereby the cartridge and the latching clip can first be manufactured separately and subsequently joined.
  • conventional cartridges can be provided with the latching clamp carrying the spring arms for the snap closure, so that cartridges which have already been manufactured can also be retrofitted with a snap closure.
  • the locking clip in the form of the outlet openings of the cartridge encompassing (part) rings before, which are connected to each other by at least one web-like element.
  • the undercut depressions having spring arms protrude from the rings symmetrically from, in such a way that they can be converted into one another by turning the cartridge about its longitudinal axis by 180 °.
  • the spring arms can be provided for elastic deflection of the spring arms with pressure surfaces in the form of area-like widenings.
  • pressure surfaces are substantially diametrically opposite each other, so that the snap closure can be solved in a particularly simple and practical way by simultaneously pressing the pressure surfaces, for example by the pressure surfaces with the thumb and forefinger of a user are brought together.
  • the attachment is designed such that it has no rotational symmetry with respect to axes of rotation in the longitudinal axis of the cartridge.
  • the attachment can in this sense have an oval or triangular cross-sectional area. This allows the attachment, especially in the presence of several Spritzguthuntn, in a certain ("right") way, d. H. in a specific assignment of spray booths to an internal structure of the attachment, are placed on the cartridge. A possible “wrong" placement of the attachments in the necessarily rotationally symmetrical in the prior art luer-lock closures can be avoided.
  • the attachment according to the invention may be a mixing tip, which receives the spray material of the spray-material chambers ejected by the injection piston under pressure through the outlet openings and releases it again in mixed form.
  • it may be in the attachment according to the invention to act a cap for closing the outlet openings of Spritzguthuntn.
  • Fig. 1 is considered, wherein an exploded view of an embodiment of the dispensing system according to the invention is shown.
  • the reference numeral 1 denotes the cartridge of a double-barreled syringe.
  • the cartridge is provided with two spray chambers, each opening into an outlet opening 2.
  • Reference numeral 3 denotes a detent bracket provided with spring arms on which the undercut recesses are arranged as part of the snap lock mechanism.
  • the locking clip 3 is fitted onto the cartridge, in particular its outlet openings 2.
  • a mixing tip is shown in FIG. 1, which in turn is composed of a distributor unit 4 and a mixing / dispensing unit 5.
  • the distributor unit 4 is provided with inlet openings 6, which pass into the outlet openings 2 of the cartridge during assembly of the arrangement and take over the sprayed material, which is ejected through the outlet openings 2 by inserting the injection plungers into the spray booths.
  • the mixing / dispensing unit 5 has a spiral 10 located within the dispensing tip 11, which ensures thorough mixing of the injection material.
  • the discharge tip 11 is provided with an opening 8 for discharging the injection molding.
  • two diametrically opposed hooks 9 are arranged, which come in assembly of the arrangement in engagement with the undercut depressions of the spring arms of the locking clip 3.
  • FIG. 2 shows an enlarged plan view of the latching clip 3 of FIG. 1 in a position plugged onto the outlet openings 2 of the cartridge 1.
  • the locking clip 3 surrounds by means of partial rings 12, the outlet openings 2 of the cartridge 1, wherein the partial rings 12 are connected by a web-like connecting element 13 with each other.
  • the partial rings 12 protrude the spring arms 14, respectively in the direction of the other part ring from.
  • the spring arms 14 can be transferred by rotation of the cartridge 1 about its longitudinal axis by 180 ° into each other.
  • the spring arms are elastically loaded along the directions indicated by the arrows.
  • the undercut depressions 15 are respectively arranged on the spring arms 14, into which hooks 9 of the mixing tip engage in the assembled state of the arrangement.
  • the hooks 9 can engage in the undercut recesses 15, the spring arms must be deflected in a direction towards each other to elastic. In the engaged state ensures the elastic spring force of the spring arms for securing the snap connection.
  • the spring arms 14 are above Be provided with diametrically opposite arranged pressure surfaces 16, through which with a sufficient pressure perpendicular to the axial direction of the cartridge, a deflection of the spring arms is effected, so that when a simultaneous actuation of the pressure surfaces, the hooks 9 come out of engagement with the undercut recesses 15 and the Snap closure can be solved.
  • FIG. 3 shows a closure cap 17 for the cartridge.
  • the closure cap 17 is provided with sack sleeves 18 which, when joined to the cartridge 1, close the outlet openings 2 of the spray-material chambers.
  • the closure cap 17 also has diametrically opposite hooks 19 which, when the closure cap is fastened to the cartridge, engage with the undercut depressions 15 of the spring arms 14 of the latching clip 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Coating Apparatus (AREA)

Claims (11)

  1. Système de distribution pour substances fluides, qui comprend une seringue à piston sous la forme d'une cartouche (1) avec au moins une chambre pour produit injecté, laquelle chambre de produit injecté est dotée d'un piston d'injection, une partie rapportée (5, 17) fixée sur une cartouche (1) sur son extrémité côté distribution, ainsi qu'une bride à encliquetage (3) disposée entre la cartouche (1) et la partie rapportée (5, 17), qui est encliquetée avec la cartouche (1),
    caractérisé en ce que
    la partie rapportée (5, 17) est fixée au moyen d'une fermeture à déclic (9) amovible sur la bride à encliquetage (3).
  2. Système de distribution selon la revendication 1,
    caractérisé en ce que la cartouche (1) présente au moins deux chambres de produit injecté disposées l'une à côté de l'autre et à axes parallèles avec des ouvertures de sortie (2) séparées.
  3. Système de distribution selon la revendication 1 ou 2,
    caractérisé en ce que, sur la partie rapportée (5, 17), pour sa fixation sur la cartouche (1), sont réalisés deux crochets (9) disposés sensiblement diamétralement opposés et en ce que sur l'extrémité, côté distribution, de la cartouche (1) sur la bride à encliquetage (3) sont réalisés deux bras de ressort (14) chargés élastiquement en cas de déviation à partir de leur position de repos, qui sont dotés chacun d'une cavité (15) contre-dépouillant et attribuée à un crochet (9), les crochets (9) s'engageant dans les cavités (15) contre-dépouillant et attribuées à ces crochets.
  4. Système de distribution selon la revendication 3,
    caractérisé en ce que les bras de ressort (14) sont conçus comme des parties des brides à encliquetage (3) fixées sur l'extrémité côté distribution de la cartouche (1).
  5. Système de distribution selon la revendication 4,
    caractérisé en ce que la bride à encliquetage (3) se présente sous une forme de bagues (partielles) (12) entourant les ouvertures de sorties (2) de la cartouche (1) et reliées entre elles par au moins un élément (13) de type entretoise, avec des bras de ressort (14) dépassant des bagues (partielles) (12), lesquels bras de ressort (14) peuvent être transférés en cas de rotation de la cartouche (1) autour de leur axe longitudinal de 180° l'un dans l'autre.
  6. Système de distribution selon l'une quelconque des revendications 3 à 5,
    caractérisé en ce que les bras de ressort (14) sont dotés pour la déviation élastique des bras de ressort (14) de surfaces de pression (16) sous la forme d'élargissements de type surface, les crochets (9) sortant de l'engrènement avec les cavités (15) contre-dépouillant et parvenant par l'exercice d'une force de pression suffisante sur les surfaces de pression (16).
  7. Système de distribution selon la revendication 6,
    caractérisé en ce que les surfaces de pression (16) sont sensiblement diamétralement opposées les unes aux autres.
  8. Système de distribution selon l'une quelconque des revendications précédentes,
    caractérisé en ce que la partie rapportée est une pointe de mélange (5), qui reçoit le produit injecté, expulsé par les pistons d'injection sous pression à travers les orifices de sortie (2), des chambres de produit injecté et le délivre dans une forme mélangée.
  9. Système de distribution selon l'une quelconque des revendications 1 à 7,
    caractérisé en ce que la partie rapportée est un capot de fermeture (17) pour la fermeture des ouvertures de sortie (2) des chambres de produit injecté.
  10. Système de distribution selon l'une quelconque des revendications précédentes,
    caractérisé en ce que la partie rapportée (5, 17) ne présente pas de symétrie de rotation autour d'axes de rotation dans le sens longitudinal de la cartouche (1).
  11. Système de distribution selon l'une quelconque des revendications précédentes,
    caractérisé en ce que la fermeture à déclic (9) s'enclenche avec un bruit perceptible.
EP03720501A 2002-07-19 2003-04-17 Système de distribution de substances fluides Expired - Lifetime EP1523385B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10233051 2002-07-19
DE10233051A DE10233051A1 (de) 2002-07-19 2002-07-19 Abgabesystem für fluide Substanzen
PCT/EP2003/004092 WO2004009249A1 (fr) 2002-07-19 2003-04-17 Systeme de distribution de substances fluides

Publications (2)

Publication Number Publication Date
EP1523385A1 EP1523385A1 (fr) 2005-04-20
EP1523385B1 true EP1523385B1 (fr) 2007-08-01

Family

ID=30010258

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03720501A Expired - Lifetime EP1523385B1 (fr) 2002-07-19 2003-04-17 Système de distribution de substances fluides

Country Status (11)

Country Link
US (1) US7316330B2 (fr)
EP (1) EP1523385B1 (fr)
JP (1) JP2005536331A (fr)
AR (1) AR040572A1 (fr)
AT (1) ATE368522T1 (fr)
AU (1) AU2003224102A1 (fr)
CA (1) CA2493069A1 (fr)
DE (2) DE10233051A1 (fr)
ES (1) ES2287470T3 (fr)
PT (1) PT1523385E (fr)
WO (1) WO2004009249A1 (fr)

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EP0993864A1 (fr) 1998-09-18 2000-04-19 Sulzer Chemtech AG Dispositif et procédé de mélanger et délivrer plusieurs composants fluides
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US6394314B1 (en) * 1999-10-12 2002-05-28 Discus Dental Impressions, Inc. Double-barreled syringe with detachable locking mixing tip
US6843652B2 (en) * 2002-12-06 2005-01-18 Kerr Corporation Single dose dental impression material delivery system and method

Also Published As

Publication number Publication date
EP1523385A1 (fr) 2005-04-20
US7316330B2 (en) 2008-01-08
ATE368522T1 (de) 2007-08-15
US20050230422A1 (en) 2005-10-20
PT1523385E (pt) 2007-11-13
AR040572A1 (es) 2005-04-13
ES2287470T3 (es) 2007-12-16
JP2005536331A (ja) 2005-12-02
WO2004009249A1 (fr) 2004-01-29
DE50307822D1 (de) 2007-09-13
DE10233051A1 (de) 2004-02-05
AU2003224102A1 (en) 2004-02-09
CA2493069A1 (fr) 2004-01-29

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