EP0397732A1 - Dispositif pour la polymerisation de matieres plastiques durcissant a la lumiere halogene - Google Patents

Dispositif pour la polymerisation de matieres plastiques durcissant a la lumiere halogene

Info

Publication number
EP0397732A1
EP0397732A1 EP19890901558 EP89901558A EP0397732A1 EP 0397732 A1 EP0397732 A1 EP 0397732A1 EP 19890901558 EP19890901558 EP 19890901558 EP 89901558 A EP89901558 A EP 89901558A EP 0397732 A1 EP0397732 A1 EP 0397732A1
Authority
EP
European Patent Office
Prior art keywords
light source
fan
halogen
housing
power supply
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Withdrawn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
EP19890901558
Other languages
German (de)
English (en)
Inventor
Günter Petz
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
Publication of EP0397732A1 publication Critical patent/EP0397732A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A61C19/003—Apparatus for curing resins by radiation
    • A61C19/004—Hand-held apparatus, e.g. guns

Definitions

  • the invention relates to a device for polymerizing halogen light-curing plastic materials, in particular tooth filling materials, with a handpiece receiving a halogen light source and a fan, a light guide rod that can be plugged onto the handpiece, and a power supply part for halogen light source and fan.
  • a handpiece which receives the halogen light source and the fan and holds the light guide rod is used, while the power supply part is accommodated in a housing which can be set up independently of the handpiece and is connected to the devices in the handpiece via a cable.
  • the device can also only be set up in a space-consuming manner.
  • the known device is characterized by a considerable weight, which gives rise to stable support surfaces.
  • the connecting cable proves to be a hindrance when handling the device.
  • the halogen light source, the fan and the light guide rod holder as well as electronic components for control and signaling devices and the power supply part are accommodated in a common housing.
  • the receiving housing is preferably designed in the shape of a pistol grip, in the handle part of which the electronic control and signaling devices and the power supply part and in the running part the halogen light source, the fan and the light guide rod holder are arranged.
  • the receptacle housing is formed by a cylindrical housing that is offset over a partial length.
  • the one-piece receptacle housing for accommodating the entire construction elements simplifies production and leads to space-saving handling.
  • the receptacle housings are expediently formed by housing halves over at least part of the length.
  • the light guide rod holder can optionally be designed separately and attached to the housing parts, for. B. can be fixed by clamping.
  • the power supply part has a power supply unit designed as a push-pull flow converter, the rectified mains voltage is clocked at 50 khz by a clock electronics and the power transmission via a metal ring toroidal transformer with high permeability and high maximum flux density takes place on the Halogenlichtlam ⁇ pe.
  • the power supply unit formed in this way is characterized by a low weight and a small size, as a result of which tilting moments when holding the device are avoided or kept low, while the high frequencies provide the prerequisite for accelerating the polymerization.
  • the light guide rod can be rotatably exchanged in a plug-in opening serving as a holder in the barrel part of the pistol-shaped receptacle housing or, in the case of cylindrical receptacle housings, in the remote housing part thereof.
  • a heat protection and a blue light filter to be set between the halogen light source and the light guide rod, as a result of which disruptive thermal influences on the plastic materials to be polymerized are avoided and predetermined hardness effects can be achieved.
  • the barrel part of the pistol grip-shaped receptacle housing can have a housing part with a larger diameter for accommodating the halogen light source and fan at the end facing away from the light outlet. This ensures that the size of the housing is kept to a minimum.
  • the receiving housing part which receives the halogen light source or the halogen light source and the fan is provided with a number of ventilation slots for the throughput of the fan flow.
  • the electronic control and signaling devices and the power supply part are also provided on a printed circuit board and to use the printed circuit board in the handle part of the pistol grip-shaped receiving housing.
  • electrically generated sound frequencies can be used as the signaling device, the height and duration of which can be set variably and which can be periodically identical or variably repeatable.
  • FIG. 8 a device according to FIG. 7 in bottom view.
  • the device in FIGS. 1 to 5 has a pistol-shaped housing 1, which is used to hold a halogen light source, a fan with control and signal devices (not shown) and a switching power supply (FIG. 6).
  • the receptacle housing 1 removably holds a light guide rod 2 by means of a plug-in opening 13, while 3 is a mains cable.
  • the receptacle housing 1 is formed over a partial length by halves 1 ', 1''which can be joined together and which together fix a grommet 4 which holds the light guide rod 2 firmly but releasably in a central opening.
  • the handle 5 of the receiving housing 1 receives the switching power supply (FIG. 6), while the halogen light source, for. B.
  • a Halogenlichtreflektorla pe and a fan as well as a heat protection and a blue light filter, also not shown, are arranged in a larger-diameter part 6 of the receiving housing 1.
  • the running part 6 has slots 7, 8 for dissipating the heat, in particular generated by the halogen light source. With 9 corrugations near the light guide rod 2 in the receiving housing 1 for better handling of the device.
  • An actuator 10 for a switch acting on the switching power supply (not shown) is arranged in the handle part 5.
  • the receiving housing 11 is essentially cylindrical.
  • the part of the receiving housing 11 facing the light guide rod is offset in cross section and has recessed grips 12 10.
  • a plug opening 13 for holding the light guide rod 2 is provided in this part of the receiving housing. 10 in turn designates the actuator for a switch (not shown) acting on the switched-mode power supply.
  • the power pack is constructed as a push-pull flow converter without an output throttle.
  • the structure is divided into blocks.
  • rectifier stage 14 With 14 a rectifier stage is designated. Rectification and sieving of the mains alternating voltage takes place in this. The circuit of the same is designed for a low screening capacity. At rectifier stage 14
  • driver stage 15 which drives the power mosfits.
  • the driver stage 15 uses the output signal of the clock generator 23 to generate the required control power for the switching transistors, which clock the rectified mains voltage directly.
  • toroidal core transmitters with a high permeability and a high maximum flux density are designed as a transformer 16 which enables a high degree of efficiency with an extremely small design and serves for galvanic isolation.
  • a halogen light source 17 is directly connected to the transmitted high
  • a small-sized rectifier stage 18 is required for the control of the fan and electronic circuit.
  • the fan 19 is used to dissipate the heat generated by the halogen light source 17.
  • An electronic timer buzzer is designated by 20.
  • the electronic tone generator circuit generates a tone frequency and controls the duration and repetition time of the tone.
  • the output signal is fed back via an electronic control stage 21 and galvanic isolation stage 22 by optoelectrical means.
  • the clock generator stage 23 also provides pulse width control to keep the output voltage constant. At the same time, the input voltage fluctuations are corrected and, in the event of overcurrent or overvoltage, the switching power supply is switched off.

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 un dispositif pour la polymérisation de matières plastiques durcissant à la lumière halogène, notamment de matières d'obturation dentaire. Le dispositif comporte une pièce à main (1) renfermant une source de lumière halogène et une soufflante. Le dispositif comporte également un tube guide de lumière (2), lequel est fixé à la pièce à main, ainsi qu'une unité d'alimentation électrique pour la source de lumière halogène et la soufflante (19). Afin de réduire la complexité de fabrication et de simplifier la manipulation, la source de lumière halogène, la soufflante et la monture du tube guide de lumière, ainsi que l'unité d'alimentation électrique et les composants électroniques des systèmes de commande et de signalisation, sont logés dans un seul boîtier (1, 11).
EP19890901558 1988-12-06 1989-01-24 Dispositif pour la polymerisation de matieres plastiques durcissant a la lumiere halogene Withdrawn EP0397732A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3840984 1988-12-06
DE19883840984 DE3840984A1 (de) 1988-12-06 1988-12-06 Vorrichtung zum polymerisieren von halogenlichthaertenden kunststoffmaterialien

Publications (1)

Publication Number Publication Date
EP0397732A1 true EP0397732A1 (fr) 1990-11-22

Family

ID=6368504

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890901558 Withdrawn EP0397732A1 (fr) 1988-12-06 1989-01-24 Dispositif pour la polymerisation de matieres plastiques durcissant a la lumiere halogene

Country Status (4)

Country Link
EP (1) EP0397732A1 (fr)
AU (1) AU2935089A (fr)
DE (1) DE3840984A1 (fr)
WO (1) WO1990006092A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9204621U1 (de) * 1992-04-03 1992-07-30 Oralia Dentalprodukte Gmbh, 7750 Konstanz Vorrichtung zum Applizieren mit Licht
DE19525366C2 (de) * 1995-07-12 1997-10-16 Heraeus Kulzer Gmbh Handpolymerisationsgerät
DE29511927U1 (de) * 1995-07-24 1997-01-09 THERA Patent GmbH & Co. KG Gesellschaft für industrielle Schutzrechte, 82229 Seefeld Lichtpolymerisationsgerät
AUPN898196A0 (en) * 1996-03-28 1996-04-26 Nulite Systems International Pty Ltd Apparatus and method for polymerising dental photopolymerisable compositions
DE29709228U1 (de) * 1997-05-26 1998-09-24 THERA Patent GmbH & Co. KG Gesellschaft für industrielle Schutzrechte, 82229 Seefeld Lichtpolymerisationsgerät
US6068474A (en) * 1998-01-30 2000-05-30 Ivoclar Ag Light curing device
DE19803755C2 (de) * 1998-01-30 2001-03-15 Ivoclar Ag Schaan Lichthärtgerät
DE19810573C2 (de) * 1998-03-11 2002-09-12 Ivoclar Vivadent Ag Lichthärtgerät
DE19815846C2 (de) * 1998-04-08 2000-12-07 Ivoclar Ag Schaan Netzbetriebenes Lichthärtgerät
US6123545A (en) * 1998-04-08 2000-09-26 Ivoclar A.G. Mains-operated device for curing by light a polymerizable dental material
US6482004B1 (en) 1999-03-26 2002-11-19 Ivoclar Ag Light curing device and method for curing light-polymerizable dental material
DE19913890B4 (de) * 1999-03-26 2004-08-12 Ivoclar Vivadent Ag Lichtpolymerisationsgerät mit Pulsbetrieb

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AR207269A1 (es) * 1975-03-20 1976-09-22 Dentsply Int Inc Aparato de fuente de luz para suministrar radiacion ultravioleta a una zona de superficie restringida
AT355200B (de) * 1978-01-23 1980-02-25 Espe Pharm Praep Bestrahlungsgeraet zum aushaerten von durch strahlung haertbaren massen
DE3411996A1 (de) * 1984-03-31 1985-10-03 Kulzer & Co GmbH, 6393 Wehrheim Bestrahlungseinheit, wie ein polymerisationsgeraet zur vorzugsweisen aushaertung von dentalkunststoffen im mund

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9006092A1 *

Also Published As

Publication number Publication date
AU2935089A (en) 1990-06-26
DE3840984A1 (de) 1990-06-07
WO1990006092A1 (fr) 1990-06-14

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