DE3839979A1 - Bubble-free capsule alginate - Google Patents

Bubble-free capsule alginate

Info

Publication number
DE3839979A1
DE3839979A1 DE3839979A DE3839979A DE3839979A1 DE 3839979 A1 DE3839979 A1 DE 3839979A1 DE 3839979 A DE3839979 A DE 3839979A DE 3839979 A DE3839979 A DE 3839979A DE 3839979 A1 DE3839979 A1 DE 3839979A1
Authority
DE
Germany
Prior art keywords
alginate
capsule
bubble
mixing
chamber
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Withdrawn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
DE3839979A
Other languages
German (de)
Inventor
Karlheinz Prof Dr Koerber
Klaus Dr Ludwig
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE3839979A priority Critical patent/DE3839979A1/en
Publication of DE3839979A1 publication Critical patent/DE3839979A1/en
Withdrawn legal-status Critical Current

Links

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
    • B05C17/00593—Hand tools of the syringe type
    • 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
    • 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

Landscapes

  • 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)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dental Preparations (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

Alginate can only be used with restrictions for taking impressions of trimmed teeth. In particular, a large number of superficial bubbles interfere with reproduction of details. The capsule alginate according to the invention avoids this restriction in that the pre-metered powder and the mixing fluid are preferably enclosed under a vacuum in the mixing capsule, so that no air bubbles can be stirred into the alginate during mechanical mixing. This results in bubble-free surfaces and improved material properties.

Description

Die Abformung beschliffener Zähne erfolgt üblicherweise durch Kombination von dünnfließenden und festeren Abformmateria­ lien. Hierbei soll das dünnfließende Material jedes Detail der abzuformenden Oberflächen exakt wiedergeben. Herkömmliche Alginate erfüllen diese Anforderung nicht.The molding of ground teeth is usually done by Combination of thin-flowing and firmer impression material lien. Here, the thin-flowing material should be every detail exactly reproduce the surfaces to be molded. Conventional Alginates do not meet this requirement.

Auch neuere Fein-Alginate zeigen an der Oberfläche des Ab­ druckes eine Vielzahl von kleinen Luftblasen, die die Detail­ wiedergabe beeinträchtigen.Newer fine alginates also show on the surface of the Ab prints a variety of small air bubbles that detail impair playback.

Üblicherweise werden Alginate von Hand dosiert und in einem Gefäß von Hand angerührt oder vordosiert nach Pulver und Flüssigkeit in einer Patrone angeliefert und in dieser mit­ tels eines Rüttlers angemischt. In beiden Fällen wird beim Anrühren ein nicht unerheblicher Luftanteil in das Alginat eingerührt. Diese eingeschlossene Luft kann dann während der Abdrucknahme zur oberflächlichen Blasenbildung führen.Alginates are usually dosed by hand and in one Vessel mixed by hand or pre-dosed for powder and Liquid delivered in a cartridge and in this with mixed with a vibrator. In both cases Mix a not inconsiderable amount of air into the alginate stirred in. This trapped air can then during the Taking an impression leads to superficial blistering.

Dieser Nachteil wird durch das neuerungsgemäße Kapselalginat dadurch vermieden, daß in der Kapsel das Pulver und die Anmischflüssigkeit unter Vakuum, stark vermindertem Luftdruck oder einem schwerer einrührbarem Gas eingeschlossen sind. Es resultieren nahezu blasenfreie Alginatoberflächen und zudem bessere Eigenschaften bezüglich der Kontraktion und bleiben­ den Deformation.This disadvantage is caused by the capsule alginate according to the innovation thereby avoided that in the capsule the powder and Mixing liquid under vacuum, greatly reduced air pressure or a gas that is difficult to stir. It result in almost bubble-free alginate surfaces and also better contraction properties and stay the deformation.

In der Grundausführung ist die Kapsel (1) zylinderförmig aus­ gebildet und durch eine Berstmembrane (5) in eine Kammer (2) zur Aufnahme der Flüssigkeit (7) und eine Kammer (3) zur Auf­ nahme des Pulvers (6) unterteilt. Die Kammer (7) ist mög­ lichst vollständig, die Kammer (3) nur teilweise gefüllt. Nicht gefüllte Anteile (8) der Kammern (2) und (3) stehen unter Vakuum (z.B. nach Abpackung unter Vakuum), vermindertem Luftdruck oder unter einem schwer einmischbarem Gas. Die Kap­ sel (1) ist am hinteren Ende durch einen kolbenartigen Deckel (4), der mittels eines externen Stempels (10) in die Kapsel einschiebbar gestaltet ist und am vorderen Ende durch einen konischen Ausflußstutzen (9), über den nach Abschneiden oder Öffnen seiner Spitze das angemischte Alginat ausgespritzt wird, abgeschlossen.In the basic version, the capsule ( 1 ) is cylindrical and divided by a bursting membrane ( 5 ) into a chamber ( 2 ) for receiving the liquid ( 7 ) and a chamber ( 3 ) for receiving the powder ( 6 ). The chamber ( 7 ) is as complete as possible, the chamber ( 3 ) is only partially filled. Unfilled portions ( 8 ) of the chambers ( 2 ) and ( 3 ) are under vacuum (eg after packaging under vacuum), reduced air pressure or under a gas which is difficult to mix. The cap sel ( 1 ) is at the rear end by a piston-like cover ( 4 ) which can be inserted into the capsule by means of an external stamp ( 10 ) and at the front end by a conical spout ( 9 ), via which after cutting or opening the mixed alginate is sprayed out at the tip.

In bevorzugter Ausführung ist die Form der Kapsel (1) als Einwegspritze mit integriertem Handstück (12) und dem in der hinteren Kapselverlängerung (14) geführten Druckstempel (11) ausgebildet.In a preferred embodiment, the shape of the capsule ( 1 ) is designed as a disposable syringe with an integrated handpiece ( 12 ) and the pressure ram ( 11 ) guided in the rear capsule extension ( 14 ).

Der vordere Anschlußstutzen (9) ist so gestaltet, daß ein Spritzenansatz bzw. eine Spritzdüse (13) (z.B. mittels eines Haftkonus, Bajonettrastung oder Gewinde) befestigt werden kann. Nach Öffnung der Spitze des Stutzens (9) kann das in der Kapsel maschinell angemischte blasenfreie Alginat mittels des Spritzenansatzes (13) zur Abdrucknahme direkt aus der Kapsel im Munde appliziert werden.The front connection piece ( 9 ) is designed in such a way that a syringe attachment or a spray nozzle ( 13 ) can be attached (for example by means of an adhesive cone, bayonet catch or thread). After opening the tip of the nozzle ( 9 ), the bubble-free alginate, which is mixed in the capsule by machine, can be applied directly from the capsule in the mouth by means of the syringe attachment ( 13 ) to take the impression.

In einer weiteren Ausführung der Kapsel (1) als Einwegspritze ist die Spritzdüse (15) am Kapselgehäuse integriert und der Materialauslaß durch eine zweite Berstmembrane (16) ver­ schlossen, die nach der Anmischung des Alginates durch weiteres Einschieben des Druckstempels (11) gesprengt wird.In a further embodiment of the capsule ( 1 ) as a disposable syringe, the spray nozzle ( 15 ) is integrated on the capsule housing and the material outlet is closed by a second bursting membrane ( 16 ), which is blown up after the mixing of the alginate by further insertion of the pressure plunger ( 11 ).

Claims (4)

1. Blasenfreies Kapselalginat, dadurch gekennzeichnet, daß in einer Anmischkapsel (1) versehen mit hinterem kolben­ artigem Deckel (4) bzw. zur Membrane, einer inneren Berstmembrane (5) und einem vorderen geschlossenen Aus­ flußstutzen (9) , die vordosierte Alginatanmischflüssig­ keit (7) in der hinteren Kammer (2) und das durch die Berstmembrane getrennte vordosierte Alginatpulver in der vorderen Kammer (3) bzw. die nicht gefüllten Anteile (8) von (2) und (3) unter Vakuum, vermindertem Luftdruck oder unter einem mit dem angemischten Alginat nicht oder nur schwer mischbarem Gas stehen bzw. mit diesem gefüllt sind.1. Bubble-free capsule alginate, characterized in that in a mixing capsule ( 1 ) provided with a rear piston-like cover ( 4 ) or to the membrane, an inner bursting membrane ( 5 ) and a front closed flow nozzle ( 9 ), the pre-metered alginate mixing liquid speed ( 7 ) in the rear chamber ( 2 ) and the pre-metered alginate powder separated by the bursting membrane in the front chamber ( 3 ) or the unfilled portions ( 8 ) of ( 2 ) and ( 3 ) under vacuum, reduced air pressure or under one with the mixed alginate is difficult or impossible to mix gas or are filled with it. 2. Blasenfreies Kapselalginat nach Anspruch 1, dadurch gekennzeichnet, daß die Kammer (2) vollständig mit ent­ gaster Flüssigkeit gefüllt ist, und nur die Kammer (3) unter Vakuum bzw. einem schwer mischbarem Gas steht.2. Bubble-free capsule alginate according to claim 1, characterized in that the chamber ( 2 ) is completely filled with ent-gassed liquid, and only the chamber ( 3 ) is under vacuum or a gas which is difficult to mix. 3. Blasenfreies Kapselalginat nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Anmischkapsel (1) als Einweg­ spritze ausgebildet ist, versehen mit integriertem Hand­ stück (12), dem in einer Kapselverlängerung (14) geführ­ ten Druckstempel (11) und einer Sonderform des Anschluß­ stutzens (9) zur Befestigung eines Spritzenansatzes (13) über Haftkonus, Bajonettrastung oder Gewinde. 3. Bubble-free capsule alginate according to claim 1 and 2, characterized in that the mixing capsule ( 1 ) is designed as a disposable syringe, provided with an integrated handpiece ( 12 ), the pressure stamp ( 11 ) guided in a capsule extension ( 14 ) and a special shape of the connecting piece ( 9 ) for attaching a syringe attachment ( 13 ) via adhesive cone, bayonet locking or thread. 4. Blasenfreies Kapselalginat nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Anmischkapsel (1) als Einweg­ spritze mit integriertem Handstück (12), Druckstempel (11) und integriertem Spritzen- bzw. Düsenansatz (15) ausgebildet ist und der Materialauslaß durch eine mit­ tels des Druckstempels sprengbare Berstmembrane (16) während des maschinellen Anmischens verschlossen ist.4. Bubble-free capsule alginate according to claim 1 and 2, characterized in that the mixing capsule ( 1 ) is designed as a disposable syringe with an integrated handpiece ( 12 ), pressure stamp ( 11 ) and integrated syringe or nozzle attachment ( 15 ) and the material outlet through one burstable membrane ( 16 ) which can be detonated by means of the pressure ram is closed during mechanical mixing.
DE3839979A 1988-11-26 1988-11-26 Bubble-free capsule alginate Withdrawn DE3839979A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE3839979A DE3839979A1 (en) 1988-11-26 1988-11-26 Bubble-free capsule alginate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3839979A DE3839979A1 (en) 1988-11-26 1988-11-26 Bubble-free capsule alginate

Publications (1)

Publication Number Publication Date
DE3839979A1 true DE3839979A1 (en) 1990-08-09

Family

ID=6367961

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3839979A Withdrawn DE3839979A1 (en) 1988-11-26 1988-11-26 Bubble-free capsule alginate

Country Status (1)

Country Link
DE (1) DE3839979A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29502783U1 (en) * 1995-02-20 1996-06-20 Thera Ges Fuer Patente Container for storing and dispensing a dental mass
DE20216631U1 (en) * 2002-10-28 2004-03-11 Haindl, Hans, Dr.med. Syringe for mixing solids and liquids, e.g. adhesives or bone cement, comprising liquid-tight piston in cylinder which is not air-tight
WO2007130703A2 (en) * 2006-01-31 2007-11-15 Align Technology, Inc. Dual-chamber package for preparing alginate impression paste

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29502783U1 (en) * 1995-02-20 1996-06-20 Thera Ges Fuer Patente Container for storing and dispensing a dental mass
US5722830A (en) * 1995-02-20 1998-03-03 Thera Patent Gmbh & Co. Kg Container for storing and dispensing a dental substance
DE20216631U1 (en) * 2002-10-28 2004-03-11 Haindl, Hans, Dr.med. Syringe for mixing solids and liquids, e.g. adhesives or bone cement, comprising liquid-tight piston in cylinder which is not air-tight
WO2007130703A2 (en) * 2006-01-31 2007-11-15 Align Technology, Inc. Dual-chamber package for preparing alginate impression paste
WO2007130703A3 (en) * 2006-01-31 2008-05-15 Align Technology Inc Dual-chamber package for preparing alginate impression paste

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