EP1182983A1 - Procede et dispositif utilises en medecine dentaire pour realiser un traitement au moyen d'un jet de liquide libre - Google Patents

Procede et dispositif utilises en medecine dentaire pour realiser un traitement au moyen d'un jet de liquide libre

Info

Publication number
EP1182983A1
EP1182983A1 EP99922405A EP99922405A EP1182983A1 EP 1182983 A1 EP1182983 A1 EP 1182983A1 EP 99922405 A EP99922405 A EP 99922405A EP 99922405 A EP99922405 A EP 99922405A EP 1182983 A1 EP1182983 A1 EP 1182983A1
Authority
EP
European Patent Office
Prior art keywords
hydraulic
pressure
valve
pneumatic
liquid
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Withdrawn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
EP99922405A
Other languages
German (de)
English (en)
Inventor
Laszlo Bascko
Gábor Varbiro
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.)
Bascko Laszlo
Original Assignee
Bascko Laszlo
Varbiro Gabor
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 Bascko Laszlo, Varbiro Gabor filed Critical Bascko Laszlo
Publication of EP1182983A1 publication Critical patent/EP1182983A1/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Withdrawn legal-status Critical Current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
    • A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
    • A61C1/0007—Control devices or systems
    • A61C1/0038—Pneumatic systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design

Definitions

  • the invention relates to a method and a device for separating
  • Tissues cannot be separated from one another with sufficient accuracy
  • So ⁇ ar and ultrasound methods are also known for dental treatment, in which the treatment is carried out using appropriate
  • lung known, which is primarily suitable for cutting the soft tissue, but for separating the healthy and pathological tissue much
  • the object of the invention is to create a dental ver ⁇
  • the invention is based on the knowledge that a
  • the treatment fluid is advantageously
  • the liquid emerging from the nozzle is regulated between 60 and 150 MPa
  • nete dental treatment device one with one for carrying out one.
  • Hand tool provided with a suitable treatment device
  • hydraulic supply unit is fed with liquid as an energy source, the hydraulic supply unit containing a hydraulic pump actuated by a drive unit and connected to a liquid container and into the feed line of this hydraulic supply line leading to the nozzle.
  • draulic pump consists of a pneumatic motor that has a
  • the supply unit is connected
  • control panel for the stepless adjustment of the control
  • Niert hydraulic control unit is connected, the one from a pneu ⁇
  • a float which detects the liquid level of the liquid container and if it is below a minimum value
  • the device according to the invention is expedient if between the hydraulic pressure line of the hydraulic supply unit and one for the flow
  • FIG. 1 shows the schematic basic structure of a possible embodiment of the
  • the device according to the invention basically consists of one for operation and one
  • a nozzle 6 is installed as a machining element
  • the pneumatic supply unit 1 consists of an electric
  • the compressor 8 is via the check valve 10 with one of the
  • Compressor 8 is also connected to a pressure switch 12, which
  • the pneumatic line 14 forming the actuating branch delivers
  • Pressure control valve 18 set and read on a pressure gauge 19
  • the value of the pneumatic feed pressure set is so
  • nem pressure gauge 22 can be read
  • Operating pressure of the hydraulic system is a combined hydraulic
  • Control unit 23 determines this combined hydraulic control unit
  • Unit 23 consists of a differential piston forming a common piston rod 24 attached pneumatic piston 25 and
  • paint control pressure p max can be changed (0 ⁇ p, ⁇ p vma x) Under the Wir ⁇
  • valves 29, 30 in functional connection with the two opposite
  • Stroke detection valves 29, 30 is the upper stroke position detection valve
  • valve 32 is connected in series
  • a check valve 36 is arranged, which during the break in operation of the hydraulic supply unit 2 or during the
  • Directional control valve 37 regulates the tool sensor valve 39 and a sensor that detects the lifting of the hand tool by a tool holding arm 38
  • a foot valve 40 is connected in series with the pneumatic line 20 forming the control branch
  • a microfilter 41 and a non-return valve 42 are built into the hand tools 5
  • Hand tool 5 is connected via a flexible line 43 to the hydraulic three-way valve 37 which regulates the supply of high-pressure liquid
  • Control valve 46 is in functional connection with the pressure regulator 28 via a pneumatic line 48, while the pressure-limiting safety valve 47 expediently acts as a valve provided with a rupture disk
  • the respective operating pressure p h of the hydraulic system can be read on a hydraulic pressure meter 49
  • the device according to the invention operates as follows
  • Compressor 8 of the pneumatic supply unit 1 is the pneumati ⁇
  • Lische pump 17 actuates the hand tool 5 with a treatment flow
  • the hydraulic pump 17 was the one in the hydraulic circuit
  • Three-way valve 37 are brought into the actuated position. A prerequisite for this is that the tool sensor valve 39 switches over when the hand tool 5 is lifted off the tool holding arm 38, the foot valve 40 also being switched over by stepping on a foot switch
  • the tool sensor valve 39 can get compressed air to the hydraulic three-way valve 37 and this switches into the actuated position, so the hydraulic three-way valve 37 switches the treatment fluid of high pressure, appropriately
  • Distilled water is usually passed in the direction of the hand tool 5
  • the dentist can use the hand tool 5 in the manner that is customary in the case of the dental drills, only the drill is replaced here by a concentrated liquid jet, with the switching off and starting
  • Three-way valve 37 in an actuated position and thus the beginning of the fluid
  • Readable operating pressure determined by the combined hydraulic control unit 23.
  • the hydraulic operating pressure required for the respective treatment which is expediently 60 to 70 MPa when separating soft parts, and 120 to 150 MPa when the tooth enamel is abraded is achieved by using the Control panel 4 arranged pressure regulator 28, a control pressure p v is set, which - via the pneumati ⁇
  • Nere surface A 2 of the hydraulic piston 26 causes a hydraulic operating pressure p h proportional to the control pressure p v .
  • Stroke position detection valve 29 by approaching its lower stroke position
  • Actuating member 27 actuated before reaching its end position, that is
  • the upper stroke position detection valve 30 is actuated by the actuating member 27, whereby the bistable three-way valve 15 is brought into such a switching position, where it closes the pneumatic line 14
  • the combined hydraulic control unit 23 also fulfills the
  • the lower stroke position detection valve is
  • the pressure relief valve 47 only occurs in the event of a
  • the disease can be carried out without loss of healthy tissue 3) At the border of the pathological and healthy tissue, the disease can be carried out without loss of healthy tissue 3) At the border of the pathological and healthy tissue.
  • the hand tool can be used with the conventional dental drill

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)
  • Water Supply & Treatment (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

L'invention concerne un procédé, mis en oeuvre en médecine dentaire, et un dispositif pour séparer des matières différentes à enlever lors d'un traitement dentaire à la limite du tissu osseux sain, ou bien, éventuellement, pour enlever par abrasion le tissu osseux sain. Par l'intermédiaire d'une buse montée sur un outil à main dentaire, un liquide sous haute pression est dirigé, sous la forme d'un jet de liquide libre concentré, avec une énergie cinétique élevée, sur la face dentaire à traiter. L'organe de travail de l'outil à main (5) est formé par une buse (6) adaptée pour l'émission d'un jet de liquide concentré sous haute pression, qui est alimentée en liquide par une source d'énergie, à savoir une unité d'alimentation (2) hydraulique commandée par un régulateur de pression (28) réglable. L'unité d'alimentation (2) hydraulique contient une pompe (17) hydraulique actionnée par une unité d'entraînement et reliée à un contenant à liquide (3). Dans la conduite d'alimentation de cette pompe hydraulique (17) conduisant à la buse (6) est montée une vanne à trois voies (37) à commande pneumatique, dans le circuit de commande pneumatique de laquelle sont montées une soupape de palpeur d'outil (39), actionnée par un organe de commande détectant l'élévation de l'outil à main (5), et une soupape de pied (40) actionnée par une commande à pied.
EP99922405A 1999-05-21 1999-05-21 Procede et dispositif utilises en medecine dentaire pour realiser un traitement au moyen d'un jet de liquide libre Withdrawn EP1182983A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/HU1999/000041 WO2000071049A1 (fr) 1999-05-21 1999-05-21 Procede et dispositif utilises en medecine dentaire pour realiser un traitement au moyen d'un jet de liquide libre

Publications (1)

Publication Number Publication Date
EP1182983A1 true EP1182983A1 (fr) 2002-03-06

Family

ID=10991265

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99922405A Withdrawn EP1182983A1 (fr) 1999-05-21 1999-05-21 Procede et dispositif utilises en medecine dentaire pour realiser un traitement au moyen d'un jet de liquide libre

Country Status (4)

Country Link
EP (1) EP1182983A1 (fr)
JP (1) JP2003519507A (fr)
AU (1) AU3949599A (fr)
WO (1) WO2000071049A1 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5334019A (en) * 1991-12-06 1994-08-02 American Dental Technologies, Inc. Dental air abrasive system
US5525058A (en) * 1992-03-27 1996-06-11 American Dental Technologies, Inc. Dental treatment system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0071049A1 *

Also Published As

Publication number Publication date
AU3949599A (en) 2000-12-12
WO2000071049A1 (fr) 2000-11-30
JP2003519507A (ja) 2003-06-24

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