WO2000010479A1 - Capsule de melange/distribution - Google Patents

Capsule de melange/distribution Download PDF

Info

Publication number
WO2000010479A1
WO2000010479A1 PCT/US1999/019005 US9919005W WO0010479A1 WO 2000010479 A1 WO2000010479 A1 WO 2000010479A1 US 9919005 W US9919005 W US 9919005W WO 0010479 A1 WO0010479 A1 WO 0010479A1
Authority
WO
WIPO (PCT)
Prior art keywords
mixing
dispensing capsule
capsule according
slider
tubular piston
Prior art date
Application number
PCT/US1999/019005
Other languages
English (en)
Other versions
WO2000010479A9 (fr
WO2000010479A8 (fr
Inventor
Ralf Wilner
Uwe Walz
Original Assignee
Dentsply International Inc.
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 Dentsply International Inc. filed Critical Dentsply International Inc.
Priority to EP99942354A priority Critical patent/EP1105064A1/fr
Priority to JP2000565805A priority patent/JP2002523132A/ja
Publication of WO2000010479A1 publication Critical patent/WO2000010479A1/fr
Publication of WO2000010479A8 publication Critical patent/WO2000010479A8/fr
Publication of WO2000010479A9 publication Critical patent/WO2000010479A9/fr

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
    • A61C5/66—Capsules for filling material
    • 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
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M2005/3128—Incorporating one-way valves, e.g. pressure-relief or non-return valves
    • 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
    • B05C17/01—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 manually mechanically or electrically actuated piston or the like
    • B05C17/0146—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 manually mechanically or electrically actuated piston or the like comprising a valve in the proximity of the nozzle that is not actuated by pressure, e.g. manually actuated

Definitions

  • the invention concerns a mixing and application or dispensing capsule for dental materials.
  • a tubular piston is supported against the container with a tear-off ⁇ ng.
  • the tear-off ⁇ ng is removed with a g ⁇ pper tool.
  • a container has in one end lying opposite a throughput borehole a correspondingly configured projection, which engages in a correspondingly configured recess of the tubular piston in the resting state, and secondly by the fact the container has, above the throughput borehole, a guide groove, in which a slider joined with a discharge cannula is guided in a sliding motion and can be stopped both in the sealing and conducting positions.
  • the catch or snap connection which comprises an appropriately configured radial projection of the inner wall of the container at the end lying opposite the throughput borehole in the position of rest of the mixing and dispensing capsule, and of an appropriately configured radial recess of the piston.
  • a blocking clip nor a ring to be pulled off is necessary in order to compensate for the forces that arise.
  • the tubular piston can be displaced without friction up to a limited feed or advance.
  • the blocking function which is produced by the interaction between the projection of the inside wall of the container and the recess of the outer wall of the tubular piston is joined at a limited extent of advance of the stamp, which is sufficient for emptying the tubular piston, while it terminates after this.
  • the friction-free advance after mixing can only be guaranteed if the projection lies on the inner wall of the container and the recess lies on the outer wall of the tubular piston.
  • the radial projection of the container which is shaped as a convexly arched inner surface, engages in the radial recess of the tubular piston, which is shaped as a concavely arched outer surface.
  • the stamp is shaped like a cylmder with a uniform outer diameter, which is adapted to the diameter of the tubular piston.
  • the diameter is reduced only in the short region of the stamping plate.
  • the guide of the stamp m the piston is stable such that even with an oblique placement of the piston for activating the mixing and dispensing capsule, no radial gap is formed between the outer wall of the tubular piston and the inner wall of the container, and thus a leaking out of liquid is reliably avoided.
  • An erroneous pressing of the stamp is avoided in that the friction between the stamp and the tubular piston is selected sufficiently high. This can be accomplished, on the one hand, by an approp ⁇ ate adaptation and mate ⁇ al selection for the stamp and the tubular piston and/or, on the other hand, by an approp ⁇ ate catch or snap connection as desc ⁇ bed above between the stamp and the tubular piston.
  • liquid container which is formed by the tubular piston, the stamp as the bottom and the foil as the cover, can be mounted and filled m a simple way.
  • the mixing and dispensing capsule will hold different dental mate ⁇ als, it is understood that the inside space of the tubular piston that is not taken up by the stamp, as well as the mside space of the container not taken up by the tubular piston, will have sufficient remaining space m order to take up the quantities of the mixing components that occur, whereby the residual volume m the container must be designed for liquid components and for the mixing process, in addition to holding the powder components.
  • the container has, above the throughput borehole, a guide groove that becomes wider toward the inside, m which a conical slider, which is joined with a discharge cannula without a transition, is held in a sliding manner
  • An accidental displacement of the slider will be avoided by the cooperation of an approp ⁇ ately configured buckling-out piece on the underside of the slider and two approp ⁇ ately configured indentations in the guide groove of the container.
  • the resulting friction between the slider and the guide groove is selected m such a way that the slider can be actuated by hand.
  • the slider In the sealing position, the slider seals the mixing and dispensing capsule in an air-tight manner, by catching the buckling-out piece of the slider m the indentation of the guide groove lying closest to the discharge opening After mixing, the slider is displaced in the direction of the indentation lying further away to the throughput borehole and after a specific amount of displacement catches with its bucklmg-out piece on the underside
  • the specific amount of displacement results from the distance of the two indentations m the guide groove
  • the distance and the position of the two indentations in the guide groove are selected such that the mixing and dispensing capsule is closed in the sealing position in an airtight manner by the slider, and after mixing, the discharge opening is brought to the throughput borehole in the cover, so that the channel of the discharge cannula is maximally accessible
  • the slider has a length such that in the sealing position, one end of the slider projects over the edge of the mixing and dispensing capsule by an amount corresponding to the amount of displacement between the indentations
  • Fig. 1 shows a longitudinal section of the mixing and dispensing capsule of the invention m a first form of embodiment in the finished, mounted state, p ⁇ or to activation.
  • Fig. 2 shows a representation corresponding to Fig 1 of a first form of embodiment after activation.
  • Fig. 3 shows a representation corresponding to Fig. 1 of a first form of embodiment after emptying.
  • Fig. 4 shows a longitudinal section of the slider and the guide groove in a single representation.
  • Fig. 5 shows a section along line A-A of Fig.4.
  • a mixing and dispensing capsule according to the invention is shown m section m Fig. 1.
  • a mixing and dispensing capsule according to the invention has a cylmd ⁇ cal container 10, a liquid container 20 shaped as a tubular piston, a stamp 40, and a slider 32 joined with a discharge cannula 30.
  • container 10 forms, within cyhnd ⁇ cal walls 19, mixing chamber 8, which is bounded at the top by a front wall 9 with a throughput borehole 13 and on the bottom by foil 23 of tubular piston 20.
  • the outer walls of container 10 have a guide groove 15 (Fig. 4) becoming wider toward the inside, which takes up slider 32, which is joined with discharge cannula 30.
  • guide groove 15 is shaped like a wedge. It is understood that the guide groove 15 can also be configured as broadening inwardly in stepped form.
  • slider 32 is adapted m its shape to correspond to guide groove 15.
  • Slider 32 has on the underside of the sealing end, a semi-sphe ⁇ cal bucklmg-out piece 34, which can catch in semi-sphe ⁇ cal indentations 12 and 14 sunk m bottom 16 of guide groove 15.
  • the length of slider 32 is selected such that the actuation end 37 in the sealing position of slider 32 projects over edge 11 by an amount corresponding to the amount of displacement between indentations 12 and 14. It is preferred to establish the friction between slider 32 and guide groove 15 by an approp ⁇ ate adaptation, so that slider 32 can be actuated by hand by actuation end 37; m the sealing position mixing chamber 8 is sealed m a substantially airtight manner by sealing end 39, and m the conducting position, the flow of mixed dental mate ⁇ al flows out only through discharge opening 38. Slider 32 is joined with discharge cannula 30 above discharge opening 38. It is preferred that slider 32 and discharge cannula 30 are combined into one part.
  • Channel 35 between discharge opening 32 and mouth opening 36 is const ⁇ cted in a funnel form in the region of the inner wall of slider 32 and runs slightly conical m the region of the inner wall of discharge cannula 30.
  • a particularly favorable flow profile results, which facilitates the discharge of highly viscous dental mate ⁇ als, such as, for example, glass lonomer filling cements.
  • Mixing chamber 8 holds the powdery components of the dental mate ⁇ al in the prepared state accordmg to Fig. 1.
  • the hollow space that is formed by mixing chamber 8, is thus dimensioned such that even when the maximal filling volume is provided, there always remains enough hollow space unfilled, so that a good intermixing is later possible.
  • the cylind ⁇ cal inner wall 19 of container 10 forms a well-sealing guide for tubular piston 20, which serves on the one hand as a liquid container and on the other hand as an uptake for stamp 40.
  • container 10 has an outer projection m the form of an annular groove 17, which produces the connection with a discharge g ⁇ pper tool (not shown) acting on stamping surface 43
  • Inner wall 19 of container 10 ends in a radial, convexly arched inner projection 18, which has a smaller diameter than the inside wall 19 of the container. Projection 18 is limited at the bottom by the radial foot surface 7.
  • Tubular piston 20 is positioned inside container 10.
  • the inside space of tubular piston 20 is bounded by the cylind ⁇ cal inner wall of the latter, by the inner surface 24, by foil 23, and by the front surface of stamp 41. This mside space holds the liquid components of the dental mate ⁇ al.
  • Mixing opening 25 has a smaller diameter than the diameter of the inner wall of the tubular piston Foil 23, which serves for sealing the mixing opening 25 in the state of rest of the mixing and dispensing capsule, is glued or is bonded onto the back side of inside surface 24, whereby the diameter of the circular foil 23 is larger than the diameter of mixing opening 25 and smaller than the diameter of the inner wall of container 10
  • a radial bonding edge reaching over the diameter of the outer wall of the tubular piston which negatively influences the mounting and sliding of tubular piston 20 m container 10, can be reliably avoided.
  • tubular piston 20 ends in a radial, concavely arched recess 26, which has a smaller diameter than the outer wall of tubular piston 20.
  • Recess 26 is bounded at the bottom by radial foot surface 27 and is substantially flush with foot surface 7. It is assured in this way that tubular piston 20 is taken up completely m container 10 and when activated by hand, there is no displacement of tubular piston 20 relative to container 10, if stamp 40 is completely pushed into tubular piston 20.
  • the catch or snap connection results by the catching of projection 18 of container 10 in recess 26 of tubular piston 20.
  • Projection 18 is configured to recess 26 such that, tubular piston 20 is held sufficiently ⁇ gidly in the desired position of rest du ⁇ ng storage and transport to the user as well as according to Fig. 2 du ⁇ ng the activation process, and, on the other hand, according to Fig. 3, the friction, which a ⁇ ses between tubular piston 20 and container 10 with a further advance of stamp 40, is not too great, so that the discharge of the mixed dental mate ⁇ al is reliably assured with a known discharge g ⁇ ppmg tool.
  • Stamp 40 which has a front surface 41 with a projection 42 is found mside tubular piston 20.
  • the friction between the inner wall of tubular piston 20 and the outer wall of stamp 40 is selected in such a way that stamp 40, not without exercising hand force, changes its relative position to tubular piston 20, which is adjusted m the tension of the assembly. It is understood that the friction can also be provided by a catch or snap connection, which exists between a radial, convexly arched projection of the inner wall of tubular piston 20 and a radial, concavely arched recess of the outer wall of stamp 40.
  • the length of stamp 40 is preferably adapted to the length of tubular piston 20, so that stamp 40 can be completely taken up m tubular piston 20.
  • front surface 41 with projection 42 is adapted to inner surface 24 with mixing opening 25, as can be seen from Fig. 2, so that projection 42 fills up mixing openmg 25 when stamp 40 is completely pressed in. In this way, the liquid component is completely expelled from the tubular piston.
  • stamp 40 is provided with a borehole 44 (Fig. 1).
  • Fig. 1 the mixing and dispensing capsule is shown in the state of rest.
  • stamp 40 is pressed by hand against a ⁇ gid base, e.g., a working surface.
  • stamp 40 is displaced in tubular piston 20 and exercises a pressure on liquid component 50 and expels the residual air that is present, which in turn presses on foil 23.
  • foil 23 bursts and the liquid component 50 is injected into mixing chamber 8.
  • the end of the activation process is clearly indicated, as is better seen from Fig. 2, if stamp foot surface 43 ends flush with foot surfaces 7. It is understood that projection 42 is also flush with the upper end of mixing opening 25, and liquid component 50 is completely injected into the mixing chamber. Du ⁇ ng the activation process, no relative motion occurs between tubular piston 20 and container 10.
  • the mixing and dispensing capsule is utilized in a known vibrating mixing device, in order to produce a homogeneous mixing of components 50 and 60 of dental mate ⁇ al introduced together into mixing chamber 8.
  • the capsule is removed and mixing chamber 8 is opened by displacing slider 32 into the conducting position.
  • slider 32 is moved such as by finger pressure, onto the actuating end 37 in the direction of the arrow
  • bucklmg-out piece 34 at the underside of slider 32 is popped out of indentation 14.
  • bucklmg-out piece 34 In the conducting position of the slider, bucklmg-out piece 34 catches notably in indentation 12, discharge opening 38 is covered by the throughput borehole, and the actuation end 37 as well as sealing end 39 are flush with the edge of the cylind ⁇ cal outer wall of container 10.
  • the mixing and dispensing capsule can be emptied. This is done by inserting the mixing and dispensing capsule into a known discharge g ⁇ pper tool. The finished mixture is pressed out through discharge cannula 30 by advance of stamp 40, whereby the empty state is shown in Fig. 3 Tubular piston 20 is then completely pushed into mixing chamber 8 with the pushed-in stamp 40.

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)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

L'invention concerne une capsule de mélange et d'application pour des produits dentaires. Cette capsule présente un récipient (10), un piston tubulaire (20) pourvu d'une masse (40) formant récipient de liquide. Pendant l'activation, le piston tubulaire (20) est maintenu via un évidement (26) dans une projection (18) du récipient (10) configurée de manière appropriée, en regard de la masse (40) actionnée manuellement. Cette capsule comporte un coulisseau (32) qui est assemblé à une canule de décharge (30). Cette capsule se caractérise en ce que le récipient (10) comprend une rainure de guidage (15) au-dessus de l'alésage de passage (13) dans lequel le coulisseau (32) qui peut être actionné manuellement est maintenu. Ce système assure l'étanchéité de la capsule dans la position de repos, et une fois les composants mélangés, assure la libération du produit dentaire dans la position de guidage via la canule de décharge (30) assemblée.
PCT/US1999/019005 1998-08-18 1999-08-18 Capsule de melange/distribution WO2000010479A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP99942354A EP1105064A1 (fr) 1998-08-18 1999-08-18 Capsule de melange/distribution
JP2000565805A JP2002523132A (ja) 1998-08-19 1999-08-18 混合及び投薬カプセル

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US9703698P 1998-08-19 1998-08-19
US37679199A 1999-08-18 1999-08-18
US09/376,791 1999-08-18
US60/097,036 1999-08-18

Publications (3)

Publication Number Publication Date
WO2000010479A1 true WO2000010479A1 (fr) 2000-03-02
WO2000010479A8 WO2000010479A8 (fr) 2000-06-02
WO2000010479A9 WO2000010479A9 (fr) 2000-08-17

Family

ID=26792392

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/019005 WO2000010479A1 (fr) 1998-08-18 1999-08-18 Capsule de melange/distribution

Country Status (3)

Country Link
EP (1) EP1105064A1 (fr)
JP (1) JP2002523132A (fr)
WO (1) WO2000010479A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1142539A3 (fr) * 2000-04-08 2002-06-12 Degussa Dental GmbH & Co. KG Contenant jetable pour matériaux de comblement dentaires
JP2002191622A (ja) * 2000-12-27 2002-07-09 Gc Corp 歯牙修復材用カプセル
EP1344500A1 (fr) * 2002-03-15 2003-09-17 Ernst Mühlbauer GmbH & Co.KG Capsule de mélange de plusieurs composants, en particulier pour l'art dentaire
US8074794B2 (en) 2007-08-16 2011-12-13 Kabushiki Kaisha Shofu Chemicals mixing container with offset communicating holes
US20170209237A1 (en) * 2014-07-24 2017-07-27 3M Innovative Properties Company Container for storing and dispensing a liquid

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5331975B2 (ja) * 2006-09-25 2013-10-30 コーニンクレッカ フィリップス エヌ ヴェ 薬剤送達装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4084320A (en) * 1976-07-21 1978-04-18 Lewis Skeirik System for mixing and dispensing dental amalgam
US4175559A (en) * 1978-04-06 1979-11-27 Kreb Robert J Iii Sealable syringe
DE3920537A1 (de) 1988-07-18 1990-02-01 Ernst Muehlbauer Mehrkomponenten-mischkapsel mit ausspritzeinrichtung fuer die gemischte masse, insbesondere fuer dentalzwecke
US4969816A (en) * 1989-03-20 1990-11-13 Melvin Drumm Dental material carrier and applicator
US5290258A (en) * 1992-07-27 1994-03-01 Genesis Industries, Inc. Syringe for administering sequentially multiple doses of a medicament
DE4315920C1 (de) 1993-05-12 1994-12-22 Ivoclar Ag Mischkapsel für Dentalmassen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4084320A (en) * 1976-07-21 1978-04-18 Lewis Skeirik System for mixing and dispensing dental amalgam
US4175559A (en) * 1978-04-06 1979-11-27 Kreb Robert J Iii Sealable syringe
DE3920537A1 (de) 1988-07-18 1990-02-01 Ernst Muehlbauer Mehrkomponenten-mischkapsel mit ausspritzeinrichtung fuer die gemischte masse, insbesondere fuer dentalzwecke
US4969816A (en) * 1989-03-20 1990-11-13 Melvin Drumm Dental material carrier and applicator
US5290258A (en) * 1992-07-27 1994-03-01 Genesis Industries, Inc. Syringe for administering sequentially multiple doses of a medicament
DE4315920C1 (de) 1993-05-12 1994-12-22 Ivoclar Ag Mischkapsel für Dentalmassen

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1142539A3 (fr) * 2000-04-08 2002-06-12 Degussa Dental GmbH & Co. KG Contenant jetable pour matériaux de comblement dentaires
JP2002191622A (ja) * 2000-12-27 2002-07-09 Gc Corp 歯牙修復材用カプセル
EP1344500A1 (fr) * 2002-03-15 2003-09-17 Ernst Mühlbauer GmbH & Co.KG Capsule de mélange de plusieurs composants, en particulier pour l'art dentaire
US6846300B2 (en) 2002-03-15 2005-01-25 Ernst Muhlbauer Gmbh & Co. Kg Multi-component mixing capsule, in particular for dental purposes
US8074794B2 (en) 2007-08-16 2011-12-13 Kabushiki Kaisha Shofu Chemicals mixing container with offset communicating holes
US20170209237A1 (en) * 2014-07-24 2017-07-27 3M Innovative Properties Company Container for storing and dispensing a liquid
US10143535B2 (en) * 2014-07-24 2018-12-04 3M Innovative Properties Company Container for storing and dispensing a liquid

Also Published As

Publication number Publication date
JP2002523132A (ja) 2002-07-30
WO2000010479A9 (fr) 2000-08-17
WO2000010479A8 (fr) 2000-06-02
EP1105064A1 (fr) 2001-06-13

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