EP1605858A1 - Capsule de melange - Google Patents

Capsule de melange

Info

Publication number
EP1605858A1
EP1605858A1 EP04721793A EP04721793A EP1605858A1 EP 1605858 A1 EP1605858 A1 EP 1605858A1 EP 04721793 A EP04721793 A EP 04721793A EP 04721793 A EP04721793 A EP 04721793A EP 1605858 A1 EP1605858 A1 EP 1605858A1
Authority
EP
European Patent Office
Prior art keywords
mixing capsule
mixing
nozzle
chamber
piston
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.)
Withdrawn
Application number
EP04721793A
Other languages
German (de)
English (en)
Inventor
Daniel Schmid
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.)
Alfred Schmid AG
Original Assignee
Alfred Schmid AG
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 Alfred Schmid AG filed Critical Alfred Schmid AG
Publication of EP1605858A1 publication Critical patent/EP1605858A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00—Filling or capping teeth
    • A61C5/60—Devices specially adapted for pressing or mixing capping or filling materials, e.g. amalgam presses
    • A61C5/62—Applicators, e.g. syringes or guns
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00—Filling or capping teeth
    • A61C5/60—Devices specially adapted for pressing or mixing capping or filling materials, e.g. amalgam presses
    • A61C5/66—Capsules for filling material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/501—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use
    • B01F33/5011—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/713—Feed mechanisms comprising breaking packages or parts thereof, e.g. piercing or opening sealing elements between compartments or cartridges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/713—Feed mechanisms comprising breaking packages or parts thereof, e.g. piercing or opening sealing elements between compartments or cartridges
    • B01F35/7137—Piercing, perforating or melting membranes or closures which seal the compartments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/7174—Feed mechanisms characterised by the means for feeding the components to the mixer using pistons, plungers or syringes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/19—Mixing dentistry compositions
    • 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
    • B05C17/00516—Shape or geometry of the outlet orifice or the outlet element

Definitions

  • the invention relates to a mixing capsule for accommodating a two-component mixture, in particular for producing a dental cup, according to the preamble of claim 1.
  • mixing capsules for curable dental compositions are known in the prior art.
  • Examples of mixing capsules are disclosed, for example, in the following patent applications: EP-A-0 245 788, US 5,026, 283, DE 4315920 and DE-A-39 20537.
  • the mixing capsules mentioned are used for storing and mixing the starting components of a curable multicomponent mixture. As soon as the starting components are mixed with one another, a spontaneous polymerization reaction sets in, and within a few minutes the starting components form a hard material that serves as a tooth filling.
  • Multi-component mixture must be coordinated.
  • the ejection nozzle must be dimensioned such that the multi-component mixture can be pressed out of the mixing capsule with little effort.
  • Multi-component mixture is pressed into the cavity of a tooth to be repaired by the dentist using a known squeeze gun.
  • the treating dentist must let the ejection nozzle of the mixing capsule protrude as far as possible into the cavity of the tooth so that the cavity is completely filled when the material is pressed out.
  • this is due to the size the gun and the stiffness and limited length of the nozzle often difficult to accomplish.
  • a common feature of the known mixing capsules is that the ejection nozzles are each in one piece with the mixing capsule.
  • Syringes with interchangeable tips have been known for many years.
  • the syringes are used to store various solutions, such as etching liquids.
  • the object of the present invention is therefore to provide a mixing capsule which can be used for processing multi-component mixtures of different viscosities. Another goal is to create a capsule that allows the multi-component mixture to be used even in hard-to-reach places. Another goal is to propose a capsule that can be tailored on site to the needs of the treatment required.
  • a mixing capsule is characterized in that the mixing capsule and the ejection nozzle are formed at least in two pieces and can be connected to one another by means of releasable fastening means.
  • the mixing capsule according to the invention has the advantage that, depending on the viscosity, the flowable ones produced in the mixing capsule Two- or multi-component mix different spray nozzles can be used.
  • the manufacturer of the multi-component mixtures is therefore no longer forced to use different mixing capsules depending on the viscosity of the mixture, but can always use the same mixing capsule - but with different ejection nozzles. It can thus also be left to the dentist, depending on the application site, to insert spray nozzles of different length on the mixing capsule.
  • the ejection nozzle advantageously has a flange on the mixing capsule side, which flange can be sealed to the mixing capsule. This can prevent
  • the ejection nozzle with the flange can be plugged onto the mixing capsule (plug connection). This enables the spray nozzle to be put on or replaced quickly.
  • connection piece provided with a screw-shaped internal thread.
  • a connection part with a corresponding external thread can also be provided on the ejection nozzle.
  • the ejection nozzle can be reliably fixed with a screw connection.
  • a screw connection has the advantage over a snap or plug connection that the spray nozzle attached in this way cannot unintentionally come loose. If the ejection nozzle did not lie close to the mixing capsule, material could escape, but without the ejection nozzle itself being able to come loose.
  • a double helical thread with the same pitch is provided on the connecting piece, the paths of which begin offset from one another by 180 degrees.
  • This has the advantage that when the nozzle is firmly screwed on, there is an even contact pressure on opposite sides of the flange.
  • the flange is advantageously oval and can interact with the double screw-shaped internal thread of the connecting piece.
  • a nozzle is expediently formed on the outlet opening of the mixing capsule, and the ejection nozzle has a widened connecting part which can be placed on the nozzle. This guiding ability enables the ejection nozzle to be placed well on the mixing capsule, in particular when the connecting piece projects beyond the connecting piece by a certain amount.
  • the interchangeable ejection nozzle described above can be provided in the case of mixing capsules of various designs. These mixing capsules are intended for the reception of dental dental masses and in the initial state each comprise two separate chambers in which the starting components of a polymerizable two- or two-component polymerizer initiated spontaneously or by light
  • Multi-component mixture are kept.
  • Such mixing capsules usually have an axially displaceable activating element with which the wall obscuring the passage opening is destroyed or. can be opened.
  • Figure 1 a mixing capsule according to the invention with a replaceable
  • FIG. 1 Ejection nozzle in a perspective view
  • Figure 2 the mixing capsule of Figure 1 without ejection nozzle
  • Figure 3 the mixing capsule of Figure 2 in longitudinal section
  • Figure 4 the ejection nozzle of Figure 1 in a perspective view
  • 5 a mixing capsule according to the invention without an ejection nozzle, but with a
  • Activation device in the starting position Fig. 6: the mixing capsule of Fig. 5 with the activation device in the
  • FIG. 1 to 6 show a mixing capsule 11 according to the invention with an outer container part 13 and a piston 15 accommodated in the container part 13.
  • the piston 15 is axially displaceable in the container part 13 and is in FIG. 5 in the starting position or filling position and in FIG Mixed position (activated state of the capsule).
  • the container part 13 is cylindrical and has an opening 16 for inserting the piston 15 and an end face 17, on which an ejection nozzle 19 is detachably arranged.
  • At the an annular groove 25 is present between two ring shoulders 21, 23 at the rear end of the container part and serves to receive a jaw of a pressing tool known in the industry.
  • the ejection nozzle 19 is not formed in one piece with the mixing capsule container 13, but rather as an individual part which can be detachably attached to the end face 17 of the container 13.
  • connecting means are preferably provided in the form of a rotary or screw connection.
  • a connection piece 27 with a helical internal thread 29 is formed on the container 13.
  • the internal thread 29 is designed as a double (two-part) thread with two screw tracks 31a, 31b offset from one another by 180 degrees (FIG. 3). Basically, you could also use a three or more split thread with screw tracks offset by 120 degrees or less.
  • a piece 33 is provided in the center of the connection piece 27, a piece 33 is provided.
  • An outlet channel 35 is formed in the socket 33, which opens into the mixing capsule 11.
  • the connecting piece 33 projects forwardly beyond the connecting piece 27 by a certain amount. This makes it easier to attach the spray nozzle 19 to the mixing capsule 11.
  • the ejection nozzle 19 has on the connection side a connecting flange 37 with a flat, annular sealing surface 39.
  • Two ears 41 are formed on opposite sides of the connecting flange 37. These can be engaged by the screw tracks 31a, 31b.
  • the connecting flange 37 consequently has an essentially oval shape.
  • the ejection nozzle 19 has a cylindrical connecting part 43, the inside diameter of which corresponds approximately to the outside diameter of the connecting piece 33.
  • a plurality of longitudinal ribs 47 are formed on the outside of the connecting part 43. The purpose of these is to ensure a good grip when screwing the ejection nozzle onto the mixing capsule.
  • the connecting part 43 has a conical nozzle channel section 43, which opens into a nozzle channel 49.
  • the ejection nozzle 19 has an outlet opening 51 at the front.
  • a mixing capsule representative of other types is described here by way of example for completeness:
  • a first chamber in the mixing capsule 11 between the piston 15 and the end face 17 52 hereinafter also referred to as the mixing chamber, which serves to hold a preferably powdery component of a multi-component mixture.
  • a second chamber 53 is formed in the piston 15, which serves to hold a liquid or at least flowable component of a multi-component mixture.
  • the second chamber 53 has an interior space 57 with a passage opening 55 oriented towards the end face 17. In the non-activated state according to FIG. 5, the passage opening 55 is closed with a FoHe or membrane 59.
  • the FoHe can be welded onto the end face 61 of the piston 15 in a known manner.
  • one or more ring seals 62 are formed on the piston skirt.
  • the first seal 62 is located on the foremost piston edge.
  • Two further seals 62a, 62b are spaced apart from the first seal 62.
  • a displacement body 63 is inserted into the first chamber 52 between the end face 61 of the piston 15 and the end face 17 of the container part 13.
  • the displacement body 63 has a shape complementary to the interior 57 of the piston 15.
  • the displacement body 63 is axially displaceable in the container part 13 by means of an activation pin 67, which is received in the ejection nozzle 19 before the activation of the mixing capsule (see FIG. 5).
  • the length of the activation pin 67 is at least as long that the displacement body 63 can be completely inserted into the second chamber 53.
  • the activation pin 67 has a head 68, which serves as a stop.
  • the displacement body 63 has a round recess 71 on the bottom 69.
  • the recess 71 serves to receive the front part of the activation pin 67.
  • the front part of the activation pin 67 and the recess 71 are advantageously created in such a way that a frictional connection is achieved.
  • the displacement body 63 is fixed in the mixing space of the non-activated capsule 11.
  • an overflow channel 73 is provided in the casing of the displacement body (FIGS. 5 and 6).
  • the exchangeable ejection nozzle 19 can also be provided on a mixing capsule, as described in the patent applications mentioned at the beginning. These mixing capsules also have two chambers for receiving the starting components of a polymerizable multicomponent unit.
  • a piston axially displaceable in a mixing capsule can be designed as a hollow piston.
  • a plunger can in turn be arranged axially displaceably in this hollow piston.
  • the axially displaceable plunger serves as an activation part which, during feed, can destroy a burstable liquid container arranged in the hollow piston, so that the contents of the container pour out into the mixing chamber.
  • a mixing capsule for a two-component mixture has a preferably cylindrical container part 13 with at least one (first) piston 15 which is axially displaceable in the container part 13.
  • a replaceable ejection nozzle 19 is provided on the front side of the mixing capsule 11.
  • the ejection nozzle 19 is detachably connected to the mixing capsule.
  • a second piston (not shown in the figures) can be arranged axially displaceably in the piston 15.
  • a second chamber is defined between the end face of the second piston and the end face of the first piston 15, which serves to hold a fluid or liquid mass. The mass stored in the second chamber can be displaced into the first chamber with the second piston.

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

L'invention concerne une capsule de mélange (11) pour un mélange à deux constituants. Cette capsule comporte une partie récipient (13) pourvue d'une buse d'éjection (19) formée sur la face frontale. Un piston (15) est guidé dans la partie récipient (13) de façon à pouvoir se déplacer axialement. Une ouverture traversante (55) est ménagée dans la face frontale du piston (15), ouverture à laquelle une première chambre (53) est raccordée. La cavité entre la face frontale de la partie récipient (13) et la face frontale du piston (15) définit une deuxième chambre ou une chambre de mélange (35). A l'état non activé de la capsule (11), une membrane pouvant éclater (59) obture l'ouverture traversante (55) entre la première et la deuxième chambre. La capsule de mélange (11) et la buse d'éjection (19) sont conçues au moins en deux pièces et peuvent être reliées l'une à l'autre à l'aide de moyens de liaison détachables.
EP04721793A 2003-03-21 2004-03-19 Capsule de melange Withdrawn EP1605858A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH4722003 2003-03-21
CH4722003 2003-03-21
PCT/CH2004/000171 WO2004082506A1 (fr) 2003-03-21 2004-03-19 Capsule de melange

Publications (1)

Publication Number Publication Date
EP1605858A1 true EP1605858A1 (fr) 2005-12-21

Family

ID=32996987

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04721793A Withdrawn EP1605858A1 (fr) 2003-03-21 2004-03-19 Capsule de melange

Country Status (3)

Country Link
US (1) US20060116657A1 (fr)
EP (1) EP1605858A1 (fr)
WO (1) WO2004082506A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7638138B2 (en) 2003-02-21 2009-12-29 Translational Research, Ltd. Compositions for nasal administration of pharmaceuticals
USRE45404E1 (en) 2003-03-27 2015-03-03 Shin Nippon Biomedical Laboratories, Ltd. Powder medicine applicator for nasal cavity
EP1785145A4 (fr) * 2004-08-10 2008-08-13 Translational Res Ltd Composition transnasale dont l'action est immediate et l'absorbabilite est elevee
EP2116264B1 (fr) 2006-12-26 2017-09-27 Shin Nippon Biomedical Laboratories, Ltd. Préparation pour administration transnasale
WO2010131486A1 (fr) * 2009-05-15 2010-11-18 Shin Nippon Biomedical Laboratories, Ltd. Compositions pharmaceutiques intranasales avec pharmacocinétique améliorée
US8827946B2 (en) * 2009-07-31 2014-09-09 Shin Nippon Biomedical Laboratories, Ltd. Intranasal granisetron and nasal applicator
BR112017016149A8 (pt) 2015-02-04 2020-06-16 Rock Dental Ag cápsula de mistura para material dentário e método para preparação de material dentário
US11744967B2 (en) 2017-09-26 2023-09-05 Shin Nippon Biomedical Laboratories, Ltd. Intranasal delivery devices
CN112370697B (zh) * 2020-10-29 2021-11-23 郑世泉 一种密封罐体用氧气消耗式快速灭火装置

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GB795630A (en) * 1956-07-16 1958-05-28 Dental Perfection Company Improvements in or relating to dental syringe
US3028052A (en) * 1959-06-01 1962-04-03 John E Archer Mold-filling device
DE1939315B2 (de) * 1969-08-01 1973-03-15 Etablissement Dentaire Ivoclar, Schaan (Liechtenstein) Mehrkammeriger behaelter fuer die aufnahme von miteinander reagierenden substanzen zur herstellung von gebrauchsfertigen dentalpraeparaten
US3756390A (en) * 1972-03-07 1973-09-04 American Cyanamid Co Two-compartment aspirating disposable hypodermic syringe package
DE3832757C2 (de) * 1988-09-27 1997-08-07 Ernst Muehlbauer Anordnung zum Behandeln einer Mehrkomponentenmischkapsel, insbesondere für Dentalzwecke, mittels eines Vibrationsmischgeräts
US5871355A (en) * 1997-09-05 1999-02-16 Centrix, Inc. Dental mixing capsule for dispensing a multiple component dental material
US5944698A (en) * 1997-10-14 1999-08-31 Ultradent Products, Inc. Adjustable flow syringe
DE29821193U1 (de) * 1998-11-26 2000-03-30 ESPE Dental AG, 82229 Seefeld Mischkapsel
EP1150619A1 (fr) * 1999-02-02 2001-11-07 Alfred Schmid AG Procede de production d'un melange constitue d'au moins deux composants, et capsule de melange
US6375460B1 (en) * 2000-02-17 2002-04-23 Voco Gmbh Capsule for mixing and applying dental cement
AU2001241680A1 (en) * 2000-02-25 2001-09-03 Ultradent Products, Inc. Syringe apparatus with a rupturable membrane and related methods
JP2001340356A (ja) * 2000-05-31 2001-12-11 Gc Corp 歯牙修復材用カプセル
US6334774B1 (en) * 2000-11-24 2002-01-01 Phillip Mark Flow through applicator with resilient tip
EP1219262A1 (fr) * 2001-01-02 2002-07-03 GC Corporation Capsule pour matériau de restauration dentaire
US6386872B1 (en) * 2001-01-03 2002-05-14 Gc Corporation Capsule for dental restoration material
JP2002219138A (ja) * 2001-01-25 2002-08-06 Gc Corp 減圧式歯牙修復材用カプセル
US6527109B2 (en) * 2001-06-19 2003-03-04 William W. Schoo Container cap with liquid-dissolvable additive

Non-Patent Citations (1)

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Title
See references of WO2004082506A1 *

Also Published As

Publication number Publication date
US20060116657A1 (en) 2006-06-01
WO2004082506A1 (fr) 2004-09-30

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