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WO2016131160A1 - Seringue d'application d'une matière dentaire - Google Patents

Seringue d'application d'une matière dentaire Download PDF

Info

Publication number
WO2016131160A1
WO2016131160A1 PCT/CH2016/000031 CH2016000031W WO2016131160A1 WO 2016131160 A1 WO2016131160 A1 WO 2016131160A1 CH 2016000031 W CH2016000031 W CH 2016000031W WO 2016131160 A1 WO2016131160 A1 WO 2016131160A1
Authority
WO
WIPO (PCT)
Prior art keywords
ejection nozzle
container part
syringe
syringe according
ejection
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.)
Ceased
Application number
PCT/CH2016/000031
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 WO2016131160A1 publication Critical patent/WO2016131160A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • B05C17/00593—Hand tools of the syringe 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
    • B05C17/01—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

Definitions

  • the invention relates to a syringe for applying a dental composition according to the preamble of claim 1.
  • Applicators are used to apply dental material to fill a cavity on a tooth.
  • Such application devices are similar to a pistol grip with a trigger. The movement of the trigger causes the linear movement of a ram.
  • a syringe can be inserted into the application device.
  • the syringe comprises a cylinder jacket which encloses a cavity, a piston movable in the cavity and an ejection nozzle on an end face of the cylinder jacket.
  • the syringe comprises a flange. With the help of the flange, the syringe is releasably held in the application device. The syringe is pre-administered with a single dose of dental material.
  • the syringe After pressing the dental material by the plunger pushes the piston in the direction of the ejection nozzle, the syringe can be removed from the application device and disposed of.
  • the cylinder jacket and the ejection nozzle are integrally formed and are usually manufactured as a one-piece injection molded part.
  • the ejection nozzle is angled relative to the longitudinal axis of the cylinder jacket.
  • the syringes exist with different angles between the longitudinal axis of the syringe and the ejection nozzle in order to be able to reach all teeth of a patient well. For the resulting different syringes different injection molds are necessary.
  • the task initiating the present invention results in the further development of a syringe of the generic type, which is simplified and correspondingly inexpensive to produce.
  • Yet another object of the invention is to propose a generic syringe with improved ease of use.
  • the container part and the ejection nozzle are connected to one another such that the ejection nozzle is held movably in the container part by a joint.
  • the solution of the problem is achieved in a syringe according to the preamble of claim 1, characterized in that the syringe from the container part, the Ausspritzdüse and the piston, whereby the syringe is formed in three pieces and that the second end of the Ausspritzdüse as a condyle and the inside of the front page as Joint socket emes ball joint are formed.
  • the constructive feature that the container part and the ejection nozzle are two components which can be produced separately leads to several advantages over the prior art, in which the container part and the ejection nozzle are integral.
  • the container part which is preferably produced by injection molding, can be the same for all syringes.
  • a single injection mold is sufficient for the container parts, resulting in corresponding savings in investment costs.
  • the different ejection nozzles can be produced independently of the container part.
  • the shape of the ejection nozzles can be made much more flexible than if the container part and ejection nozzle are produced in one piece.
  • the demolding of the separate ejection nozzles can also be done in a simple design injection molds, which leads to further reductions in investment costs.
  • other liquids and pastes can be applied with the syringe.
  • the ejection nozzle is movable relative to the container part. Thereby, the position of the ejection nozzle is adjustable so that to be filled tooth holes with the ejection nozzle easier to reach.
  • the ball joint allows a simple, movable connection without the need for additional components.
  • the ejection nozzle can not only be pivoted in one plane, but is three-dimensional pivotable and rotatable with the joint head.
  • the setting of the ejection nozzle relative to the container part is therefore particularly flexible.
  • the ball joint is close to the dental mass when it is expressed from the cavity.
  • the joint socket preferably surrounds the joint head such that the joint head is pivotably held in the joint socket.
  • the condyle is pressed against the resistance of the socket in this and snapped with this. As a result, no further component for joint fixation is necessary.
  • the socket has the shape of a spherical cap, whereby at the transition from the cavity to the socket a constriction is realized. If, during assembly of the syringe, the condyle overcomes the resistance caused by the constriction, it will snap into the socket and be held movably in the socket.
  • the diameter of the constriction is preferably less than 1 mm smaller than the diameter of the lumen and the socket.
  • the diameter of the condyle is substantially the same size as the diameter of the lumen and the socket, so that the condyle is easily movable in the lumen and the socket.
  • the ejection nozzle is insertable through the back into the container part and the condyle is locked by overcoming the constriction in the socket.
  • the through-hole through which the ejection nozzle protrudes from the container part can therefore be kept small since the condyle does not have to be forced through it to build the syringe together.
  • the assembly through the back of the container part therefore allows the ejection nozzle is held very reliable in the container part and can not be pushed out through the passage opening together with the dental material.
  • the joint head and the joint socket are free of expansion joints, which facilitate a locking of the two joint elements. Because the syringe has to be so small that it is in the mouth of one Patient movements are possible, such expansion joints are not necessary. The locking without expansion joints is therefore carried out without damaging the ejection nozzle or the container part.
  • the components and / or their injection molds can therefore be designed simply, resulting in low production costs and a simplified demolding. Expansion joints are inevitable in joints with larger dimensions than they occur in the syringe, otherwise the components can be destroyed during assembly.
  • a passage opening is provided on the end face through which the ejection nozzle protrudes and which limits the range of motion of the ejection nozzle relative to the container part.
  • the limitation of the passage opening specifies the versc venk Scheme in which the ejection nozzle can be moved.
  • the passage opening is circular or a slot along which / which the ejection nozzle is guided pivotably.
  • the shape of a slot causes in a simple manner that the ejection nozzle is only pivotable up and down and does not swivel to the side.
  • the slot determines the pivoting range of the ejection nozzle, since this strikes in the upper and lower end position of the slot.
  • Conceivable of course, would also be a different shape of the through hole for the ejection nozzle, if this should also be three-dimensionally pivotable to the sides, for example, round or oval through holes.
  • the angle range between which the ejection nozzle is pivotable relative to the longitudinal axis of the container part is between 10 and 80 degrees, preferably between 15 and 70 degrees and particularly preferably between 20 and 65 degrees. This angular range allows the ejection nozzle to reach well by pivoting each tooth hole, regardless of the location of the tooth hole in the oral cavity of a patient.
  • the ejection nozzle in the slot has a pivoting range between 20 and 90 degrees and preferably between 30 and 50 degrees. As already stated in the last paragraph, such a dimensioned pivoting range allows good accessibility of tooth holes which are to be filled with dental material.
  • the invention is also preferably characterized in that an ejection channel is provided in the ejection nozzle which tapers from the second end to the first end.
  • an ejection channel is provided in the ejection nozzle, which tapers conically from the second end to the first end.
  • Such a shaping of the ejection channel can be realized simply because the ejection nozzle is produced as a separate component of the syringe.
  • the conical ejection channel allows for improved dosing of the dental material.
  • the ejection channel can be adapted to the nature of the dental material in that the ejection channel in the region of the first end has a conical taper and the rest of the ejection channel is hollow cylindrical or the ejection channel in the region of the second end has a conical taper and the rest of the ejection channel is hollow cylindrical. Also conceivable are other embodiments of the ejection channel, if it requires the nature of Dentaimasse to be applied sensitively.
  • the front side is hemispherical in shape. It is thereby adapted to the shape of the socket, whereby the wall thickness of the end face is optimized. Furthermore, a hemisphere shape is easy to demold.
  • the ejection nozzle has a coloring, which coloration of a particular dental material can be assigned. An application of a wrong dental material is avoided by the unique color of the ejection nozzle.
  • the ejection nozzle is made of plastic. As a result, it is inexpensive to produce by injection molding. Other materials, such as metal are conceivable for the production of Ausspritzdüse.
  • a flange for detachable mounting in the application device is formed on the rear side of the container part.
  • the syringe can be connected to the application device in a few seconds and removed from it.
  • Figure 1 a section through a first embodiment of a syringe for
  • FIG. 2 shows a section through a second embodiment of a syringe for
  • FIG 3 shows a section through a third embodiment of a syringe for
  • Figure 4 an axonometric view of the third embodiment.
  • a syringe for applying a dental composition is shown in FIGS. 1 to 4 and designated overall by reference numeral 11.
  • the syringe 11 is made up of the following components:
  • a preferably cylindrical container part 13 has an end face 15 and a rear side 17.
  • the end face preferably has the shape of a hemisphere.
  • On the back 17, an opening 19 is provided through which a piston can be inserted into the container part.
  • the piston is not shown in the figures.
  • a cavity 21 is provided, in which a dental material is received.
  • the syringe 11 is inserted into an application device. By operating a trigger guard, a plunger is moved forward and pushes the piston in the direction of the front side.
  • the dental composition is expressed from the cavity 21.
  • an ejection nozzle 23 which is arranged on the front side 15, the Dentahnasse is applied in a tooth cavity.
  • the ejection nozzle 23 has a first end 25, which faces away from the end face 15 and can also be considered as a tip. Further, the ejection nozzle 23 has a second end 27, with which the ejection nozzle 23 is pivotally connected to the end face 15.
  • the container part 13 and the ejection nozzle 23 are two separate components and therefore formed in two pieces.
  • the container part 13 and the ejection nozzle 23 are a single part and therefore permanently connected to each other.
  • the ejection nozzle 23 and the container part 13 are articulated in the region of the end face 15 with a ball joint.
  • the second end 27 as a joint head 29th formed, which is held pivotably in a joint socket 31.
  • the joint socket 31 is formed on the inside of the end face 15 and surrounds the joint head 29 in such a way that it is held in the joint socket 31 in a form-fitting manner.
  • the joint socket 31 has the shape of a spherical cap whose curved surface is larger than the curved surface of the hemisphere.
  • a constriction 32 is formed at the transition between joint socket 31 and cavity 21.
  • the joint head 29 can therefore snap into the joint socket 31 after overcoming a resistance and is then held in the joint socket 31 without further holding elements.
  • the diameter at the constriction 32 is smaller by less than 1 mm from the diameter of the cavity.
  • the end face 15 is pierced by a slot 33 through which the ejection nozzle 23 protrudes.
  • the slot 33 defines the direction of movement for the pivoting of the ejection nozzle 23 relative to the container part 13. That is, the ejection nozzle 23 is guided along the slot 33.
  • the pivoting movement of the ejection nozzle 23 is limited by the two attachment points on the slot 33.
  • the oblong hole 33 is formed asymmetrically on the hemispherical end face 15 in such a way that the ejection nozzle 23 can assume a specific basic position relative to the container part 13.
  • the longitudinal axis of the container part 35 and the longitudinal axis of the ejection nozzle 37 enclose an opening angle 39, which is preferably 45 degrees.
  • the ejection nozzle can be pivoted upwards and downwards along the slot 33 from the basic position.
  • the ejection nozzle 23 is pivoted up to the upper stop point on the slot 33.
  • the pivoting range 41 is preferably 40 degrees.
  • the Ausspritzdüse 23 can therefore be pivoted from the basic position each 20 degrees up and down.
  • the ejection nozzle 23 can be adapted to a variety of positions in order to achieve a tooth cavity well.
  • a further advantage of the bipartite of the ejection nozzle 23 and the container part 13 is that the ejection channel provided in the ejection nozzle 23 can taper from the second end 27 to the first end 25.
  • a one-piece design is a Such an embodiment of the ejection channel 43 is not or only very expensive to produce. If the syringe 11 is produced in one piece by the injection molding process, an outwardly tapering ejection channel can be removed from the mold, since it constitutes a so-called undercut.
  • FIG. 1 and FIG. 3 various forms of tapering of the ejection channel 43 are shown.
  • a tapering cone in the ejection direction may be provided at the first or at the second end 25, 27 (FIG. 1 and FIG. 3).
  • the ejection channel 43 tapers uniformly over its entire length (FIG. 2).
  • the configuration of the shape of the ejection channel 43 is determined by the type of dental material.
  • the ejection channel can be designed such that the dental material can be expressed particularly easily.
  • the ejection nozzles can conveniently be made of plastic or else of metal. They may have different colors, whereby the syringe 11 can provide information about which dental material is filled in the cavity 21.
  • a flange 45 is formed on the back 17.

Landscapes

  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • Geometry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Physics & Mathematics (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 seringue (11) pour appliquer une matière dentaire, qui peut être introduite dans un dispositif d'application pour exprimer la matière dentaire. Ladite seringue (11) comprend une partie réservoir (13) de préférence cylindrique présentant une face frontale (15) dotée d'une buse d'éjection (23) et face arrière (17) opposée à la face frontale (15), qui comporte une ouverture (19) pour insérer un piston mobile. Un piston à mouvement axial est reçu dans la partie réservoir (13), une cavité (21) destinée à recevoir la matière dentaire étant définie entre la face frontale (15) de la partie réservoir (13) et le piston. La partie réservoir (13) et la buse d'éjection (23) sont conçues en au moins deux parties et sont reliées l'une à l'autre, de manière que la buse d'éjection (23) peut être déplacée par rapport à la partie réservoir (13).
PCT/CH2016/000031 2015-02-20 2016-02-19 Seringue d'application d'une matière dentaire Ceased WO2016131160A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00228/15 2015-02-20
CH00228/15A CH710763B1 (de) 2015-02-20 2015-02-20 Spritze zur Applikation einer Dentalmasse.

Publications (1)

Publication Number Publication Date
WO2016131160A1 true WO2016131160A1 (fr) 2016-08-25

Family

ID=53039127

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2016/000031 Ceased WO2016131160A1 (fr) 2015-02-20 2016-02-19 Seringue d'application d'une matière dentaire

Country Status (2)

Country Link
CH (1) CH710763B1 (fr)
WO (1) WO2016131160A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD884877S1 (en) 2017-05-26 2020-05-19 S&C Polymer Silicon-und Composite-Spezialitaeten GmbH Applicator for dental use
CN112656528A (zh) * 2020-12-18 2021-04-16 江西瑞圣特科技有限责任公司 可调角度的冲牙器喷嘴及冲牙器
CN114278529A (zh) * 2020-06-23 2022-04-05 中山市华宝勒生活用品实业有限公司 一种抽液装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4218659B1 (fr) 2022-01-26 2025-07-09 Ivoclar Vivadent AG Cartouche dentaire

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0157121A1 (fr) * 1984-03-01 1985-10-09 ESPE Stiftung & Co Produktions- und Vertriebs KG Récipient pour distribuer des pâtes dentaires
WO2005016783A1 (fr) * 2003-08-14 2005-02-24 3M Espe Ag Capsule pour des materiaux a deux constituants
CN200998323Y (zh) * 2007-02-02 2008-01-02 百业通商务咨询(上海)有限公司 一种用于牙科带液包的粉、液混合治疗筒
GB2490365A (en) * 2011-04-28 2012-10-31 James Francis Venton Adjustable nozzle for mastic or sealant
EP2783654A1 (fr) * 2013-03-26 2014-10-01 3M Innovative Properties Company Ensemble piston et capsule de distribution d'un matériau dentaire
EP2818133A1 (fr) * 2013-06-26 2014-12-31 3M Innovative Properties Company Dispositif pour la distribution de matériau dentaire

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0157121A1 (fr) * 1984-03-01 1985-10-09 ESPE Stiftung & Co Produktions- und Vertriebs KG Récipient pour distribuer des pâtes dentaires
WO2005016783A1 (fr) * 2003-08-14 2005-02-24 3M Espe Ag Capsule pour des materiaux a deux constituants
CN200998323Y (zh) * 2007-02-02 2008-01-02 百业通商务咨询(上海)有限公司 一种用于牙科带液包的粉、液混合治疗筒
GB2490365A (en) * 2011-04-28 2012-10-31 James Francis Venton Adjustable nozzle for mastic or sealant
EP2783654A1 (fr) * 2013-03-26 2014-10-01 3M Innovative Properties Company Ensemble piston et capsule de distribution d'un matériau dentaire
EP2818133A1 (fr) * 2013-06-26 2014-12-31 3M Innovative Properties Company Dispositif pour la distribution de matériau dentaire

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD884877S1 (en) 2017-05-26 2020-05-19 S&C Polymer Silicon-und Composite-Spezialitaeten GmbH Applicator for dental use
CN114278529A (zh) * 2020-06-23 2022-04-05 中山市华宝勒生活用品实业有限公司 一种抽液装置
CN112656528A (zh) * 2020-12-18 2021-04-16 江西瑞圣特科技有限责任公司 可调角度的冲牙器喷嘴及冲牙器

Also Published As

Publication number Publication date
CH710763A1 (de) 2016-08-31
CH710763B1 (de) 2019-01-31

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