DE3426837A1 - Mixing syringe for dental compositions - Google Patents
Mixing syringe for dental compositionsInfo
- Publication number
- DE3426837A1 DE3426837A1 DE19843426837 DE3426837A DE3426837A1 DE 3426837 A1 DE3426837 A1 DE 3426837A1 DE 19843426837 DE19843426837 DE 19843426837 DE 3426837 A DE3426837 A DE 3426837A DE 3426837 A1 DE3426837 A1 DE 3426837A1
- Authority
- DE
- Germany
- Prior art keywords
- syringe
- piston rod
- mixing
- piston
- mixing syringe
- 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- Withdrawn
Links
- 238000002156 mixing Methods 0.000 title claims abstract description 49
- 239000000203 mixture Substances 0.000 title abstract 5
- 239000007921 spray Substances 0.000 claims abstract description 9
- 150000001875 compounds Chemical class 0.000 claims description 7
- 239000005548 dental material Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 230000000295 complement effect Effects 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims 2
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 239000004848 polyfunctional curative Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 239000002978 dental impression material Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C9/00—Impression cups, i.e. impression trays; Impression methods
- A61C9/0026—Syringes or guns for injecting impression material; Mixing impression material for immediate use
-
- 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
- A61C5/64—Applicators, e.g. syringes or guns for multi-component compositions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/44—Mixers with shaking, oscillating, or vibrating mechanisms with stirrers performing an oscillatory, vibratory or shaking movement
- B01F31/441—Mixers with shaking, oscillating, or vibrating mechanisms with stirrers performing an oscillatory, vibratory or shaking movement performing a rectilinear reciprocating movement
-
- 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
- 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
- B01F33/50112—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 of the syringe or cartridge type
-
- 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
-
- 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
- B01F35/714—Feed mechanisms for feeding predetermined amounts
-
- 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
- B01F35/716—Feed mechanisms characterised by the relative arrangement of the containers for feeding or mixing the components
- B01F35/7162—A container being placed inside the other before contacting the contents
-
- 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
- B01F35/71805—Feed mechanisms characterised by the means for feeding the components to the mixer using valves, gates, orifices or openings
-
- 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
- B01F35/75—Discharge mechanisms
- B01F35/754—Discharge mechanisms characterised by the means for discharging the components from the mixer
- B01F35/75425—Discharge mechanisms characterised by the means for discharging the components from the mixer using pistons or plungers
- B01F35/754251—Discharge mechanisms characterised by the means for discharging the components from the mixer using pistons or plungers reciprocating in the mixing receptacle
-
- 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
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
-
- 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
- B05C17/00513—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container of the thread type
-
- 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
-
- 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
- B05C17/0052—Accessories therefor
-
- 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
- B05C17/00559—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 the different components being stored in coaxial chambers
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (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
Description
Mischspritze für Dentalmassen Mixing syringe for dental materials
Die Erfindung betrifft eine Mischspritze für Dentalmassen, insbesondere Abdruckmassen gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a mixing syringe for dental materials, in particular Impression compounds according to the preamble of claim 1.
Die Basiskomponente und die Härterkomponente von Zwei-Komponenten-Dentalabdruckmassen müssen unmittelbar vor Anfertigung des Abdrucks in einem vorbestimmten Mischungsverhältnis gründlich gemischt werden. Die Komponenten sind in Tuben konfektioniert, aus denen vorbestimmte Stranglängen nebeneinander auf eine Unterlage gedrückt und ineinander verrührt werden. Die Verarbeitungszeit bis zum Abbinden der Abdruckmasse ist außerordentlich kurz. Darüber hinaus muß die angemischte Abdruckmasse vielfach noch in eine Spritze gefüllt werden, um die Masse an die Stelle heranzuführen, von der der Abdruck gefertigt werden soll.The basic component and the hardener component of two-component dental impression materials must be in a predetermined mixing ratio immediately before making the impression be mixed thoroughly. The components are packaged in tubes from which predetermined strand lengths pressed next to each other on a base and into each other be stirred. The processing time until the impression material sets is extraordinary short. In addition, the mixed impression material often has to be put into a syringe be filled in order to bring the mass to the point from which the impression was made shall be.
Es ist Aufgabe der Erfindung, einen Weg zu zeigen, wie die für die Vorbereitung von Mehrkomponenten-Dentalmassen, insbesondere Abdruckmassen, benötigte Zeit verkürzt und zugleich die Durchmischung der Komponenten verbessert werden kann.It is the object of the invention to show a way as the for Preparation of multi-component dental materials, especially impression materials Time can be shortened and at the same time the mixing of the components can be improved.
Diese Aufgabe wird erfindungsgemäß durch die im kennzeichnenden Teil des Patentanspruchs 1 angegebenen Merkmale gelöst.This object is achieved according to the invention by the in the characterizing part of claim 1 specified features solved.
Im Rahmen der Erfindung werden die zu mischenden Komponenten der Dentalmasse unmittelbar in einer Spritze gemischt, so daß sie als gebrauchsfertige Masse unmittelbar aus dieser Spritze abgegeben werden kann. Das bisher erforderliche Umfüllen der anderweitig gemischten Dentalmasse in die Abgabespritze entfällt. Die Konstruktion der Mischspritze ist relativ einfach, da der im Spritzenkörper untergebrachte Rührer mittels der Kolbenstange des Auspreßkolbens betätigt wird.In the context of the invention, the components of the dental compound to be mixed are mixed immediately in a syringe so that they are immediately ready for use can be dispensed from this syringe. The previously required decanting of the Otherwise mixed dental material in the dispensing syringe is not required. The construction the mixing syringe is relatively simple because of the stirrer housed in the syringe body is actuated by means of the piston rod of the ejection piston.
Bei der Mischspritze handelt es sich bevorzugt um eine für den einmaligen Gebrauch bestimmte Wegwerfspritze. Bei dem Sperrventil kann es sich um eine durch einen Deckel oder dergleichen verschließbare öffnung handeln. Bevorzugt ist das Sperrventil als Einwegventil ausgebildet. Es sitzt an dem im Inneren des Spritzenkörpers gelegenen Ende der Kolbenstange, in deren Inneren auch der Einlaßkanal der zuzumischenden Komponente, insbesondere der Härterkomponente, verläuft. Ein besonders einfaches Einwegventil besteht in einem zweckmäßigerweise in einer Ringnut am Umfang der Kolbenstange sitzenden Ring aus gummielastischem Material, der radiale Auslaßöffnungen des Einlaßkanals verschließt.The mixing syringe is preferably one for the one-time use Use certain disposable syringes. The shut-off valve can be a through act a cover or the like closable opening. That is preferred Check valve designed as a one-way valve. It sits on the inside of the syringe body located end of the piston rod, inside which also the inlet channel of the to be mixed Component, especially the hardener component, runs. A particularly simple one One-way valve consists in an expediently in an annular groove on the circumference of the piston rod seated ring made of rubber-elastic material, the radial outlet openings of the inlet channel locks.
Der mit der Kolben stange fest verbundene Rührer kann beliebige Form haben und ist vorzugsweise als mit öffnungen versehene Platte ausgebildet. Die Kupplung, mit der die Kolbenstange am Kolben verriegelt wird, ist zweckmäßigerweise als Bajonettverschluß oder Gewinde ausgebildet, so daß sie durch eine Drehbewegung gesteuert werden kann.The stirrer firmly connected to the piston rod can have any shape have and is preferably designed as a plate provided with openings. The coupling, with which the piston rod is locked on the piston, is expediently as a bayonet lock or threaded so that it can be controlled by a rotary movement.
Bei Betätigung des Rührers ändert sich der Volumeninhalt des Spritzenkörpers entsprechend der Eintauchtiefe der Kolbenstange. Um der Volumenänderung beim Rühren Rechnung zu tragen, kann der dem Auslaßstutzen benachbarte Teil der Zylinderwand des Spritzenkörpers als Faltenbalg ausgebildet sein. Zum Volumenausgleich kann aber auch der Kolben herangezogen werden, sofern dieser leichtgängig genug in dem Spritzenkörper geführt ist.When the stirrer is operated, the volume of the syringe body changes according to the immersion depth of the piston rod. About the change in volume when stirring To take into account, the part of the cylinder wall adjacent to the outlet port of the syringe body can be designed as a bellows. For volume compensation, however, the plunger can also be used, provided that it runs smoothly enough in the syringe body is led.
Eine der Komponenten der Abdruckmasse, vorzugsweise die Basiskomponente, wird zweckmäßigerweise bereits in der Mischspritze konfektioniert geliefert. Die zweite Komponente, das heißt die Härterkomponente, wird bevorzugt ebenfalls in einer zum Einfüllen in die Mischspritze vorbereiteten Spritze konfektioniert geliefert. Die Handelseinheit umfaßt bevorzugt mehrere solcher Mi sch spritzen und eine einzige Spritze für die zweite Komponente, deren Inhaltsvolumen jedoch entsprechend der Zahl der Mischspritzen der Handelseinheit bemessen ist.One of the components of the impression compound, preferably the base component, is expediently already packaged in the mixing syringe. the second component, that is, the hardener component, is preferably also in one Delivered ready-made syringe for filling into the mixing syringe. The commercial unit preferably comprises several such Mi sch syringes and a single one Syringe for the second component, the volume of which, however, corresponds to the Number of mixing syringes of the commercial unit is measured.
Im folgenden soll ein Ausführungsbeispiel der Erfindung anhand von Zeichnungen näher erläutert werden. Es zeigt: Fig. 1 eine schematische Schnittdarstellung einer Mischspritze; Fig. 2 einen Schnitt durch einen Verschlußdeckel der Mischspritze der Fig. 1; Fig. 3 eine teilweise aufgebrochene Seitenansicht der Mischspritze der Fig. 1 mit aufgesetztem Verschlußdeckel während des Mischvorgangs und Fig. 4 eine teilweise geschnittene Seitenansicht einer Vorratsspritze für eine zweite Komponente der Dentalmasse.In the following, an embodiment of the invention will be based on Drawings are explained in more detail. It shows: FIG. 1 a schematic sectional illustration a mixing syringe; 2 shows a section through a closure cover of the mixing syringe of Fig. 1; Fig. 3 is a partially broken away side view of the mixing syringe of FIG. 1 with the closure lid attached during the mixing process, and FIG. 4 shows a partially sectioned side view of a storage syringe for a second component the dental mass.
Fig. 1 zeigt eine für den einmaligen Gebrauch bestimmte, als Wegwerfspritze ausgebildete Mischspritze, in der vorkonfektioniert die Basiskomponente einer Zweikomponenten-Silikonabdruckmasse zur Herstellung von Kiefer- und Zahnabdrücken oder dergleichen enthalten ist. Die Mischspritze hat einen hohl zylindrischen Spritzenkörper 1, der an seiner einen Stirnseite 3 einen Auslaßstutzen 5 mit einem Außengewinde 7 trägt. Auf den Auslaßstutzen 5 ist bei Lieferung und während des Mischvorgangs ein Verschluß deckel 9 geschraubt, der mit einem zentrischen Stopfen 11 in den Auslaßstutzen 5 eingreift und bündig mit der Innenseite der Stirnwand 3 abschließt (Fig. 2). Fig. 1 zeigt eine anstelle des Verschlußdeckels 9 auf den Auslaßstutzen 5 aufgeschraubte Spritzdüse 13 zum Auftragen der gemischten Dentalmasse.Fig. 1 shows a disposable syringe intended for single use trained mixing syringe in which the basic component of a two-component silicone impression material is pre-assembled for the production of jaw and tooth impressions or the like is included. the Mixing syringe has a hollow cylindrical syringe body 1, which at its one Front side 3 carries an outlet connection 5 with an external thread 7. On the outlet port 5 a cap 9 is screwed on delivery and during the mixing process, which engages with a central plug 11 in the outlet connection 5 and is flush flush with the inside of the end wall 3 (Fig. 2). Fig. 1 shows one in place of the cap 9 screwed onto the outlet nozzle 13 for Application of the mixed dental material.
In dem Spritzenkörper 1 sitzt abgedichtet axial verschiebbar ein Kolben 15, der in einer zentrischen öffnung 17 eine Kolbenstange 19 axial verschiebbar führt. Die Kolbenstange 19 trägt im Bereich ihres den Auslaßstutzen 5 benachbarten Endes radiale Nasen 21 eines Bajonettverschlusses, dessen komplementäre Taschen 23 in dem Kolben 15 vorgesehen sind und die Verriegelung der Kolbenstange 19 am Kolben 15 erlauben. Der Kolben 15 kann bei angekuppelter Kolbenstange 19 aus seiner dem Auslaßstutzen 5 fernen Stellung mittels der Kolbenstange 19 zum Auslaßstutzen 5 hin bewegt werden.A plunger is seated in the syringe body 1 and is axially displaceable in a sealed manner 15, which has a piston rod 19 axially displaceable in a central opening 17 leads. The piston rod 19 carries in the region of its adjacent outlet connection 5 End of radial lugs 21 of a bayonet catch, its complementary pockets 23 are provided in the piston 15 and the locking of the piston rod 19 on Allow piston 15. When the piston rod 19 is coupled, the piston 15 can be removed from its the outlet connection 5 remote position by means of the piston rod 19 to the outlet connection 5 to be moved.
An dem zum Auslaßstutzen 5 benachbarten Ende der Kolbenstange 19 ist ferner eine Rührerplatte 25 angebracht, die sich quer zur Schieberichtung der Kolbenstange 19 erstreckt und mehrere Durchgangsöffnungen 27 aufweist. Durch Hin- und Herbewegen der Kolbenstange 19 in dem Spritzenkörper 1 kann der Inhalt des Spritzenkörpers 1 gemischt werden.At the end of the piston rod 19 adjacent to the outlet connection 5 a stirrer plate 25 is also attached, which extends transversely to the sliding direction of the piston rod 19 extends and has a plurality of through openings 27. By moving back and forth the plunger rod 19 in the syringe body 1 can contain the contents of the syringe body 1 to be mixed.
Die Kolbenstange 19 enthält einen Einlaßkanal 29, der zur Spritzenaußenseite hin offen ist und im Bereich des im Spritzenkörper 1 gelegenen Endes der Kolbenstange 19 radiale Auslaßöffnungen 31 hat. Die Auslaßöffnungen 31 münden in einer die Kolbenstange 19 umschließenden Ringnut 33, in der ein Ring 35 aus gummielastischem Material sitzt, der die Auslaßöffnungen 31 verschließt und ein zum Inneren des Spritzenkörpers 1 hin öffnendes Einwegventil bildet.The piston rod 19 contains an inlet channel 29 which faces the outside of the syringe is open and in the area of the im Syringe body 1 located One end of the piston rod 19 has radial outlet openings 31. The outlet openings 31 open into an annular groove 33 which surrounds the piston rod 19 and in which a ring 35 made of rubber-elastic material that closes the outlet openings 31 and forms a one-way valve opening towards the interior of the syringe body 1.
Fig. 4 zeigt eine Vorratsspritze 37 für die zweite Komponente der Dental-Abdruckmasse, insbesondere die Härterkomponente. Die Vorratsspritze 37 hat einen Spritzenkörper 39, in welchem ein Kolben 41 verschiebbar ist. Von einer Stirnseite 43 des Spritzenkörpers 39 steht eine langgestreckte Spritzdüse 45 ab, deren Außendurchmesser dem Innendurchmesser des Einlaßkanals 29 der Mischspritze angepaßt ist. Am freien Ende der Spritzdüse 45 ist ein Außenkonus 47 vorgesehen, der in einem komplementären Innenkonus 49 des Einlaßkanals der Mischspritze dicht paßt. Die Spritzdüse 45 kann mittels eines Deckels 49 verschlossen werden.Fig. 4 shows a syringe 37 for the second component of the Dental impression compound, especially the hardener component. The storage syringe 37 has a syringe body 39 in which a piston 41 is displaceable. From a front side 43 of the syringe body 39 protrudes from an elongated spray nozzle 45, the outside diameter of which is adapted to the inner diameter of the inlet channel 29 of the mixing syringe. At the free At the end of the spray nozzle 45, an outer cone 47 is provided, which is in a complementary Inner cone 49 of the inlet channel of the mixing syringe fits tightly. The spray nozzle 45 can be closed by means of a cover 49.
Der Mischvorgang verläuft wie folgt: Die Mischspritze enthält bei Lieferung die Basiskomponente der Abdruckmasse und ist mit dem Schraubdeckel 9 verschlossen. Die Kolbenstange 19 ist vom Kolben 15 abgekoppelt.The mixing process is as follows: The mixing syringe contains at Delivery of the basic component of the impression material and is closed with the screw cap 9. The piston rod 19 is decoupled from the piston 15.
Nach Einführen der Spritzdüse 45 in den Einlaßkanal 29 wird durch Einpressen des Kolbens 41 entsprechend dem gewünschten Mischungsverhältnis eine vorbestimmte Menge der Härterkomponente in die im Spritzenkörper 1 enthaltene Basiskomponente eingeführt. Durch Hin- und Herbewegen der Kolbenstange 19 und damit der Rührerplatte 25 werden die beiden Komponenten innig gemischt. Sodann wird die Verschlußkappe 9 abgenommen und die Spritzdüse 13 aufgeschraubt.After inserting the spray nozzle 45 into the inlet channel 29 is through Pressing in the piston 41 according to the desired mixing ratio predetermined amount of the hardener component in the base component contained in the syringe body 1 introduced. By moving the piston rod 19 back and forth and thus the stirrer plate 25 the two components are intimately mixed. Then the cap 9 removed and the spray nozzle 13 screwed on.
Die Kolbenstange 19 wird über die Bajonettverbindung mit dem Kolben 15 gekuppelt und die fertiggemischte Dental-Abdruckmasse wird unmittelbar aus der Mischspritze für den Abdruck abgegeben.The piston rod 19 is connected to the piston via the bayonet connection 15 coupled and the ready-mixed dental impression material is directly from the Mixing syringe dispensed for the impression.
Beim Rühren ändert sich abhängig von der Eintauchtiefe der Kolbenstange 19 das Innenvolumen des Spritzenkörpers 1. Um der Volumenänderung Rechnung zu tragen, sind die Zylinderwände des Spritzenkörpers 1 mit in Umfangsrichtung sich erstreckenden Gelenkkerben 51 versehen, so daß die Zylinderwand im Bereich des Auslaßstutzens 5 einen Faltenbalg 53 (Fig. 3) bildet, der die Volumenänderung ausgleichen kann. Fig. 3 zeigt den Faltenbalg nach außen gefaltet. Der Faltenbalg kann auch nach innen gefaltet sein. Der Faltenbalg kann ganz entfallen, wenn die Volumenänderung klein ist, beispielsweise bei Kolbenstangen mit geringem Durchmesser oder wenn der Kolben 15 die Volumenausgleichsfunktion mit übernimmt.When stirring changes depending on the immersion depth of the piston rod 19 the internal volume of the syringe body 1. To take account of the change in volume, are the cylinder walls of the syringe body 1 with extending in the circumferential direction Hinge notches 51 provided so that the cylinder wall in the area of the outlet connection 5 forms a bellows 53 (FIG. 3) which can compensate for the change in volume. Fig. 3 shows the bellows folded outwards. The bellows can also go inwards be folded. The bellows can be omitted entirely if the change in volume is small is, for example, with piston rods with a small diameter or when the piston 15 takes over the volume compensation function.
Die Vorratsspritze 37 ist zusammen mit mehreren Mischspritzen zu einer Handelspackung konfektioniert. Das Volumen ihres Spritzenkörpers 39 ist so bemessen, daß es die zum Mischen des Basismaterials sämtlicher Mischspritzen der Handelspackung erforderliche Menge an Härter enthält. Um das Mischungsverhältnis exakt einhalten zu können, trägt der Spritzenkörper 39 Eichmarkierungen 55.The storage syringe 37 is together with several mixing syringes to one Retail pack made up. The volume of your syringe body 39 is dimensioned so that that it is used for mixing the base material of all mixing syringes in the commercial pack contains the required amount of hardener. To adhere to the mixing ratio exactly To be able to do so, the syringe body 39 carries calibration markings 55.
Anstelle des Bajonettverschlusses 21, 23 kann an dem dem Auslaßstutzen 5 zugewandten Ende der Kolbenstange 19 ein Gewindeansatz vorgesehen sein, der in einen Innengewindeansatz des Kolbens 15 einschraubbar ist. Die Mischspritze und die Vorratsspritze bestehen zweckmäßigerweise aus Kunststoff.Instead of the bayonet lock 21, 23 can be attached to the outlet port 5 facing the end of the piston rod 19, a threaded extension can be provided, which is shown in an internal thread attachment of the piston 15 can be screwed in. The mixing syringe and the syringe are expediently made of plastic.
Claims (13)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843426837 DE3426837A1 (en) | 1984-07-20 | 1984-07-20 | Mixing syringe for dental compositions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843426837 DE3426837A1 (en) | 1984-07-20 | 1984-07-20 | Mixing syringe for dental compositions |
Publications (1)
Publication Number | Publication Date |
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DE3426837A1 true DE3426837A1 (en) | 1986-01-23 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE19843426837 Withdrawn DE3426837A1 (en) | 1984-07-20 | 1984-07-20 | Mixing syringe for dental compositions |
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DE (1) | DE3426837A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112295065A (en) * | 2020-09-30 | 2021-02-02 | 广州迈普再生医学科技股份有限公司 | Full-automatic self-adaptive medical glue spraying device |
-
1984
- 1984-07-20 DE DE19843426837 patent/DE3426837A1/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112295065A (en) * | 2020-09-30 | 2021-02-02 | 广州迈普再生医学科技股份有限公司 | Full-automatic self-adaptive medical glue spraying device |
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