FR2599241A2 - Device for holding a boring tool in a vibrationally moving dental instrument - Google Patents

Device for holding a boring tool in a vibrationally moving dental instrument Download PDF

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Publication number
FR2599241A2
FR2599241A2 FR8608151A FR8608151A FR2599241A2 FR 2599241 A2 FR2599241 A2 FR 2599241A2 FR 8608151 A FR8608151 A FR 8608151A FR 8608151 A FR8608151 A FR 8608151A FR 2599241 A2 FR2599241 A2 FR 2599241A2
Authority
FR
France
Prior art keywords
tool
core
vibrationally
holding
boring tool
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.)
Granted
Application number
FR8608151A
Other languages
French (fr)
Other versions
FR2599241B2 (en
Inventor
Henri Leonard
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.)
Micro Mega SA
Original Assignee
Micro Mega SA
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
Priority claimed from FR8218545A external-priority patent/FR2535198B1/en
Application filed by Micro Mega SA filed Critical Micro Mega SA
Priority to FR868608151A priority Critical patent/FR2599241B2/en
Priority to CH673/87A priority patent/CH671684A5/fr
Priority to IT8767213A priority patent/IT1217138B/en
Priority to IT8753156U priority patent/IT8753156V0/en
Priority to JP62086732A priority patent/JPS6359947A/en
Priority to DE3718026A priority patent/DE3718026C2/en
Priority to US07/056,703 priority patent/US4840566A/en
Publication of FR2599241A2 publication Critical patent/FR2599241A2/en
Publication of FR2599241B2 publication Critical patent/FR2599241B2/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A61C1/02—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design characterised by the drive of the dental tools
    • A61C1/07—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design characterised by the drive of the dental tools with vibratory drive, e.g. ultrasonic
    • 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
    • A61C1/08—Machine parts specially adapted for dentistry
    • A61C1/14—Tool-holders, i.e. operating tool holders, e.g. burr holders
    • A61C1/148—Non-rotating tool holders, e.g. vibrating, oscillating, nutating
    • 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
    • A61C5/40—Implements for surgical treatment of the roots or nerves of the teeth; Nerve needles; Methods or instruments for medication of the roots
    • A61C5/42—Files for root canals; Handgrips or guiding means therefor

Abstract

Device according to Claim 1 of the main patent, characterised in that the locking element is forcibly fitted onto the front part of the core and is pushed forward, locking the tool in place, by an element which slides on the rear part of the core under the action of a compression spring, itself pushing it forwards.

Description

La Déposante a décrit au Brevet Principal un dispositif pour le maintien d'un outil d'alésage des canaux radiculaires des dents dans un instrument dentaire comportant des moyens pour imprimer audit outil d'alésage un mouvement vibratoire, ce dispositif consistant en un noyau central tubulaire relié à son extrémité proximale auxdits moyens vibratoires et par suite affecté dudit mouvement vibratoire, et comportant à son extrémité distale un coude, Un perçage étant réalisé dalis ce coude dans le prolongement de sa section interne, l'outil d'alésage étant disposé dans cette partie coudée et dans ledit perçage et étant maintenu par un élément de blocage vissé sur la partie non coudée dudit noyau, et poussant l'outil sur les deux côtés de sa tige dépassant ledit noyau. The Applicant described in the Main Patent a device for maintaining a tool for boring the root canals of the teeth in a dental instrument comprising means for imparting a vibratory movement to said boring tool, this device consisting of a central tubular core connected at its proximal end to said vibratory means and consequently affected by said vibratory movement, and comprising at its distal end an elbow, A hole being made in this elbow in the extension of its internal section, the reaming tool being arranged in this bent part and in said bore and being held by a blocking element screwed onto the non-bent part of said core, and pushing the tool on both sides of its rod projecting beyond said core.

I1 est par ailleurs précisé dans le Premier Certificat d'addition que, l'outil étant bloqué dans son logement par le rebord supérieur de l'élément vissé sur le porte-outil, ledit élément de blocage est lui-même immobilisé par un second élément vissé derrière lui sur le porte-outil, à la manière d'un ensemble écrou (contre-écrou.  I1 is also specified in the First Certificate of addition that, the tool being locked in its housing by the upper edge of the element screwed onto the tool holder, said blocking element is itself immobilized by a second element screwed behind him on the tool holder, like a nut assembly (lock nut.

Bien que ce dispositif donne ainsi toute satisfaction, il peut arriver que le praticien ne sache pas bien doser le serrage de l'élément de blocage, et le serre trop ou pas assez. Although this device is thus entirely satisfactory, it may happen that the practitioner does not know how to properly dose the tightening of the locking element, and tightens it too much or not enough.

Le présent Certificat d'Addition vise donc un aménagement permettant d'éliminer ce risque. A cet effet ledit second élément est adapté sur le nez de l'instrument, non plus par vissage, mais par coulissement en opposition à un ressort de compression qui, prenant appui sur l'instrument, le repousse vers l'élément de blocage de l'outil avec une force constante. The present Certificate of Addition therefore aims at an arrangement making it possible to eliminate this risk. To this end, said second element is fitted on the nose of the instrument, no longer by screwing, but by sliding in opposition to a compression spring which, bearing on the instrument, pushes it towards the blocking element of the tool with constant force.

Par ailleurs, le présente Certificat d'Addition concerne un autre aménagement destiné à éviter que l'outil ne s'échappe en glissant hors de l'instrument, notamment au moment du déblocage. In addition, this Certificate of Addition relates to another arrangement intended to prevent the tool from escaping by sliding out of the instrument, in particular at the time of release.

A cet effet, selon l'invention, le manche de l'outil et son logement dans le nez du noyau comportent des éléments en creux et en saillie s'encastrant les uns dans les autres, tels que des filetages ou des rainures, interdisant tout déplacement axial de l'outil.To this end, according to the invention, the handle of the tool and its housing in the nose of the core include recessed and projecting elements which fit into one another, such as threads or grooves, preventing any axial movement of the tool.

On va maintenant décrire l'invention plus en détail en se référant au dessin annexé qui illustre en coupe longitudinale un mode de réalisation de chacun des aménagements précédents.  We will now describe the invention in more detail with reference to the accompanying drawing which illustrates in longitudinal section an embodiment of each of the preceding arrangements.

Sur ce dessin, on a représenté en 1 l'axe vibrant sur lequel est visu le noyau creux 2, de la même manière qu'au
Brevet Principal. La partie avant de ce noyau creux comporte un logement oblique 3 pour l'outil 4. L'élément de blocage de l'outil 4 dans son logement est un capuchon 5, emmanché à force sur ladite partie avant, et qui est lui-même bloqué par un élément 6, qui au lieu d'être vissé sur le noyau 2 comme dans le premier certificat d'addition, est également emmanché sur ce noyau, et repoussé vers le capuchon 5 par un ressort 7, comprimé entre un épaulement 8 du noyau fixe 2 et un épaulement 9 de l'élément coulissant 6. Sous l'effet de ce ressort, l'élément 6 repousse le capuchon 5 vers l'avant, et les rebords 10 et 11 de ce capuchon bloquent l'outil 4 dans son logement avec un effort toujours constant puisque c'est celui du ressort 7.In this drawing, there is shown at 1 the vibrating axis on which the hollow core 2 is viewed, in the same way as at
Main patent. The front part of this hollow core has an oblique housing 3 for the tool 4. The locking element of the tool 4 in its housing is a cap 5, force fitted on said front part, and which is itself blocked by an element 6, which instead of being screwed onto the core 2 as in the first certificate of addition, is also fitted onto this core, and pushed back towards the cap 5 by a spring 7, compressed between a shoulder 8 of the fixed core 2 and a shoulder 9 of the sliding element 6. Under the effect of this spring, the element 6 pushes the cap 5 forward, and the flanges 10 and 11 of this cap block the tool 4 in its housing with an always constant effort since it is that of the spring 7.

Par ailleurs, également selon l'invention, le logement 3 est taraudé ou comporte des rainures circulaires, tandis que le manche de l'outil 4 comporte des parties s'encastrant exactement dans ce taraudage ou ces rainures, avec un certain jeu pour permettre sa mise en place ou son extraction. Furthermore, also according to the invention, the housing 3 is tapped or has circular grooves, while the handle of the tool 4 has parts which fit exactly into this tapping or these grooves, with a certain play to allow its placement or extraction.

Quand l'outil est en place, il est maintenu à la fois par cet encastrement et les rebords 10 et 11 du capuchon. Pour le libérer, il suffit de faire coulisser l'élément 6 vers la droite en comprimant le ressort 7. L'outil est alors débloqué et, grâce au jeu entre les filetages ou rainures précités, il devient possible de l'extraire, sans qu'il s'échappe en glissant librement hors du logement 3. When the tool is in place, it is held both by this recess and the flanges 10 and 11 of the cap. To release it, simply slide the element 6 to the right by compressing the spring 7. The tool is then released and, thanks to the play between the aforementioned threads or grooves, it becomes possible to extract it, without qu '' it escapes by sliding freely out of the housing 3.

Un circlip 12 limite la course vers l'avant de l'élément 6 sous l'effet du ressort 7.  A circlip 12 limits the forward travel of the element 6 under the effect of the spring 7.

Claims (2)

REVENDICATIONS 1. Dispositif selon la revendication 1 du Brevet Principal, caractérisé en ce que l'élément de blocage est emmanché à force sur la partie avant du noyau et est repoussé vers l'avant en bloquant l'outil en place par un élément coulissant sur la partie arrière du noyau sous l'action d'un ressort de compression le repoussant lui-même vers l'avant.1. Device according to claim 1 of the Main Patent, characterized in that the blocking element is force fitted on the front part of the core and is pushed forward by blocking the tool in place by a sliding element on the rear part of the core under the action of a compression spring pushing it itself forward. 2. Dispositif selon la revendication I du brevet principal caractérisé en ce que le logement de l'outil et le manche de l'outil comportent des rainures ou analogues s'encastrant les unes dans les autres avec un jeu permettant l'introduction ou l'extraction de l'outil, mais lui interdisant tout déplacement longitudinal au moment du blocage et du déblocage. 2. Device according to claim I of the main patent characterized in that the tool housing and the handle of the tool have grooves or the like fitting into each other with a clearance allowing the introduction or extraction of the tool, but preventing it from any longitudinal displacement at the time of locking and unlocking.
FR868608151A 1982-11-03 1986-06-02 DEVICE FOR HOLDING A BORING TOOL IN A DENTAL INSTRUMENT WITH VIBRATORY MOTION. Expired - Lifetime FR2599241B2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR868608151A FR2599241B2 (en) 1982-11-03 1986-06-02 DEVICE FOR HOLDING A BORING TOOL IN A DENTAL INSTRUMENT WITH VIBRATORY MOTION.
CH673/87A CH671684A5 (en) 1986-06-02 1987-02-23
IT8767213A IT1217138B (en) 1986-06-02 1987-03-18 DEVICE FOR SUPPORTING A BORING TOOL IN A VIBRATORY-MOVING DENTAL INSTRUMENT
IT8753156U IT8753156V0 (en) 1986-06-02 1987-03-18 DEVICE FOR SUPPORTING A BORING TOOL IN A VIBRATORY-MOVING DENTAL INSTRUMENT
JP62086732A JPS6359947A (en) 1986-06-02 1987-04-08 Boring tool holder of vibration type dental remedy machine
DE3718026A DE3718026C2 (en) 1986-06-02 1987-05-29 Device for attaching a tool to a dental instrument with a vibration movement
US07/056,703 US4840566A (en) 1986-06-02 1987-06-02 Device for maintaining a boring tool in a vibratory dental instrument

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8218545A FR2535198B1 (en) 1982-11-03 1982-11-03 DEVICE FOR HOLDING A BORE TOOL IN A DENTAL INSTRUMENT WITH VIBRATORY MOTION
FR868608151A FR2599241B2 (en) 1982-11-03 1986-06-02 DEVICE FOR HOLDING A BORING TOOL IN A DENTAL INSTRUMENT WITH VIBRATORY MOTION.

Publications (2)

Publication Number Publication Date
FR2599241A2 true FR2599241A2 (en) 1987-12-04
FR2599241B2 FR2599241B2 (en) 1990-04-27

Family

ID=26223136

Family Applications (1)

Application Number Title Priority Date Filing Date
FR868608151A Expired - Lifetime FR2599241B2 (en) 1982-11-03 1986-06-02 DEVICE FOR HOLDING A BORING TOOL IN A DENTAL INSTRUMENT WITH VIBRATORY MOTION.

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Country Link
FR (1) FR2599241B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998031295A1 (en) * 1997-01-14 1998-07-23 Kaltenbach & Voigt Gmbh & Co. Medical or dental handpiece for treating by chip-removal or abrasion preferably tissue from the human or animal body

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE374711A (en) *
US1404519A (en) * 1921-11-17 1922-01-24 James M Gilbert Dental-broach holder
CH372132A (en) * 1955-03-08 1963-09-30 Cavitron Ultrasonics Inc Clearing device operated with sonic or ultrasonic frequency, especially for conservative dentistry
FR1455922A (en) * 1965-06-08 1966-05-20 Micro Mega Sa Handpieces for mechanical reaming of dental canals
FR2242187A1 (en) * 1973-08-28 1975-03-28 Buermoos Dentalwerk
US4229168A (en) * 1978-08-23 1980-10-21 Scholz Jr Howard W Contra-angle ultrasonic endodontic instrument
US4295827A (en) * 1979-12-31 1981-10-20 Howard Martin Endodontic flow through ultrasonic instrument holder attachment
US4330278A (en) * 1980-06-30 1982-05-18 Howard Martin Endodontic flow-through ultrasonic instrument holder device
EP0106632A2 (en) * 1982-10-06 1984-04-25 Syntex (U.S.A.) Inc. Vibratory device, dental or surgical instrument, and depth stop and attachment assembly therefor
FR2556584A2 (en) * 1982-11-03 1985-06-21 Micro Mega Sa Dental tool fixing system - has cone shaped clamp which is screwed to fasten drill in place

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE374711A (en) *
US1404519A (en) * 1921-11-17 1922-01-24 James M Gilbert Dental-broach holder
CH372132A (en) * 1955-03-08 1963-09-30 Cavitron Ultrasonics Inc Clearing device operated with sonic or ultrasonic frequency, especially for conservative dentistry
FR1455922A (en) * 1965-06-08 1966-05-20 Micro Mega Sa Handpieces for mechanical reaming of dental canals
FR2242187A1 (en) * 1973-08-28 1975-03-28 Buermoos Dentalwerk
US4229168A (en) * 1978-08-23 1980-10-21 Scholz Jr Howard W Contra-angle ultrasonic endodontic instrument
US4295827A (en) * 1979-12-31 1981-10-20 Howard Martin Endodontic flow through ultrasonic instrument holder attachment
US4330278A (en) * 1980-06-30 1982-05-18 Howard Martin Endodontic flow-through ultrasonic instrument holder device
EP0106632A2 (en) * 1982-10-06 1984-04-25 Syntex (U.S.A.) Inc. Vibratory device, dental or surgical instrument, and depth stop and attachment assembly therefor
FR2556584A2 (en) * 1982-11-03 1985-06-21 Micro Mega Sa Dental tool fixing system - has cone shaped clamp which is screwed to fasten drill in place

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998031295A1 (en) * 1997-01-14 1998-07-23 Kaltenbach & Voigt Gmbh & Co. Medical or dental handpiece for treating by chip-removal or abrasion preferably tissue from the human or animal body

Also Published As

Publication number Publication date
FR2599241B2 (en) 1990-04-27

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