WO1998029052A1 - Attachement tournant polyvalent - Google Patents
Attachement tournant polyvalent Download PDFInfo
- Publication number
- WO1998029052A1 WO1998029052A1 PCT/EP1997/007243 EP9707243W WO9829052A1 WO 1998029052 A1 WO1998029052 A1 WO 1998029052A1 EP 9707243 W EP9707243 W EP 9707243W WO 9829052 A1 WO9829052 A1 WO 9829052A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sleeve
- attachment
- connector
- ring
- instrument
- Prior art date
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
- A61C1/02—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
- A61C1/05—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 turbine drive
- A61C1/052—Ducts for supplying driving or cooling fluid, e.g. air, water
-
- 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
- A61C1/18—Flexible shafts; Clutches or the like; Bearings or lubricating arrangements; Drives or transmissions
Definitions
- the present invention relates to a versatile rotating attachment capable of connecting different types of dental instruments to a power source.
- this invention relates to a rotating attachment capable of connecting to dental instruments, the rear parts of which are intended to ensure the connection of this instrument to the attachment, have, relative to one another, different geometric configurations.
- the conventional dental installations which are used by the practitioners for the operations of treatment of the teeth, generally consist of a power source which is designated, in this professional environment, by the term of "unit" and which is capable of supply the agents and energy necessary for the implementation of said operations.
- These installations generally comprise several supply pipes, one end of which is connected to the unit, while the other end is designed to be connected, via a specific connection socket, to the rear of one or more dental instruments that are available on a display stand.
- connection socket For its mechanical attachment to an instrument, each connection socket is generally fitted with a rotating nut which is arranged to be screwed onto the rear of this instrument, the latter comprising a thread provided for this purpose.
- This assembly consisting of the hose, the socket and the rotating nut, is designated, in the dental field, by the term "attachment”.
- this socket and the nut the practitioner can, depending on the operations he has to perform, connect the necessary instruments to the respective attachments of his installation according to their compatibility. We seek, for reasons of simplification, rationalization and economy to improve this compatibility and to allow the connection of the greatest number of instruments, or even of all the instruments, on the same attachment, and to equip the installations with several attachments of the same type, or even a single attachment capable of ensuring the connection of all instruments to the unit.
- the object of the present invention is to provide a rotating attachment which responds to this problem and which, by a simple and inexpensive solution, allows connection to different types of dental instruments having rear parts of different geometries.
- the subject of the invention is a versatile rotary attachment comprising: a pipe comprising connection means, such as at least one electrical supply cable and / or at least one conduit for transporting a fluid, these connection means being intended to be connected to the power source, a connector provided for ensuring the connection, at the front of the attachment, between a dental instrument and the connection means, this connector being formed by a first fixed connector integral with the connection means and a second movable and removable connector, which can be connected to the first connector and which is designed to be connected to the dental instrument, the second connector being able to be rotatably mounted and held axially on the first fitting via a rotating stop ring, axially locked on the first fitting and able to be screwed on the second fitting, and a nut which can be secured to the rear part of the instrument
- FIG. 1 is a side view schematic of dental equipment comprising an instrument connected to an attachment according to the invention
- FIG. 2 is a view in longitudinal section of a section of an attachment connected to the rear of a dental instrument of a first type , whose rear has a first configuration
- Figure 3 is a sectional view similar to Figure 2, but showing the attachment of Figure 2 connected to the rear of a dental instrument of a second type and whose the rear has a second configuration
- FIG. 3A is an enlargement of zone A of FIG. 3
- FIG. 3A is an enlargement of zone A of FIG. 3
- FIG. 4 is a perspective view of a stop ring and of a movable connector equipping the attachment of the figure 3.
- a dental equipment ⁇ which includes a conventional instrument la, lb, formed in this example of a contra-angle which is provided, at its front end, with a head 2, arranged to receive a tool, not shown.
- the front will be defined as being the region of the equipment extending in the direction of the head 2 (arrow AV) and "the rear” will be defined as being the region of this equipment s' extending in the opposite direction (arrow AR), that is to say in the direction of a unit S to which the instrument la, lb is connected.
- a motor 6 which can be detached from the handle 4 by simple traction.
- the motor 6 is further connected, at the rear, to an attachment 8a, 8b which comprises a supply pipe 10 connected to the unit S which forms a source of supply of electrical energy and fluids.
- This attachment 8a, 8b further comprises a socket 14 inside which are arranged several connection elements, not referenced, comprising several fluid transport channels as well as several contacts and electrical supply wires.
- the supply pipe 10 comprises several fluid transport conduits and several electrical supply wires (also not referenced) forming connection means R which are connected to the unit S and which are respectively connected to the channels and to the wires of the socket 14.
- these fluid transport channels and conduits make it possible to supply the equipment with air which serves as engine air, if the instrument 1a, 1b is a turbine or a pneumatic motor, or possibly as cooling air, if the instrument 1a, 1b is a contra-angle connected to an electric motor 6, as in the example shown.
- These channels and conduits can also make it possible to ensure the evacuation of the exhaust air towards the rear of the equipment, towards the unit S, and / or can be used to supply the air and water necessary for the cooling "spray", a spray which is intended to be projected onto the working area of the tool which is supported and driven by the head 2.
- the wires and electrical contacts of all these components make it possible, for their part, to power the electric motor 6 and / or a lighting lamp, which can for example be housed in the motor 6 and which can be associated with optical fibers guiding the light up to 'at head 2, towards the work area.
- a lighting lamp which can for example be housed in the motor 6 and which can be associated with optical fibers guiding the light up to 'at head 2, towards the work area.
- the pipe 10 and the socket 14 may comprise other wires, channels and / or conduits, not shown, having functions which it is not necessary to describe here.
- an attachment and an instrument comprising several connection means formed by channels, conduits, and connection wires, it will be understood that the invention also applies to an arrangement comprising only one conduit and / or a single fluid transport channel, and / or a single electrical supply wire.
- the rear part 22 of the instrument 1a, 1b which is shown partially in the drawings, is described, in this particular example, as belonging to an element of a motor.
- This motor is part, in the broad sense, of a range of several types of apparatus or components intended for dental treatment and having different functionalities, these apparatuses including the motor presently described here being all qualified as "dental instruments", which '' they intervene directly or indirectly during the treatment.
- the attachment 8a, 8b which is the subject of the present invention and which will be described in more detail below, is capable of being advantageously connected to different types of dental instruments, the rear parts of which have different geometric configurations. These instruments which can be an engine like described in this example or in particular a turbine, a turbine connector, or even a contra-angle with motor are conventional and known to those skilled in the art and will therefore not be described here in detail.
- the attachment 8a, 8b comprises a rotating fixing nut 16 in which is formed, at its front end, an internal thread 18 (FIG. 2) which is arranged to be screwed onto an external thread 20, provided on the rear part 22 of the instrument la, lb.
- instrument 1a which is shown in FIG. 2 and which will be described below is an instrument of a first type, in particular an electric motor, having a first specific rear configuration.
- the socket 14 comprises a connector 24 which is formed by two respectively fixed 26 and movable 28a connections, these two connections being provided to provide the interface and the functional link for transporting electrical energy and fluids between the connection means R of the pipe 10 and the rear 22 of the engine.
- the attachment 8a comprises a hollow body or sleeve 30 in which a sheath of flexible material 31 is fixedly held, by means of a flange 32.
- the fixed connector 26 of the connector 24 is also engaged and fixedly held in the body 30, via an insert 34, made integral with the body 30 by a screwed ring 36.
- the fixed connector 26 comprises a hollowed-out longitudinal shaft 38 which is fixed to the insert 34 by conventional screws 39.
- This shaft 38 carries radial electrical contacts 40 (only one being referenced) which are fixed on the shaft 38 and which cooperate with corresponding electrical contacts 42, integral with the movable connector 28a.
- the fixed connector 26 due to its attachment to the pipe 10, via the insert 34, the screws 39, and the ring 36 is intended to remain permanently on the attachment 8a, apart from maintenance operations. As will be understood from the following description, this fixed part 26 of the connector 24 is intended to remain permanently on the attachment 8a.
- the movable connector 28a of the connector 24 as well as the shaft 38 of the fixed connector 26 comprise channels for transporting fluids, as well as bores, grooves and various orifices, not referenced, which allow the transport of the fluid (s) from the connection means R, towards the instrument la.
- These elements also include various conventional sealing means, such as O-rings which will not be described in more detail.
- the rear 22 of the instrument 1a also comprises a set of connection means also formed by fluid transport channels, bores, grooves and various orifices, but also by contacts and electrical wires which are will not describe either, their construction being conventional and within the reach of those skilled in the art.
- the movable connector 28a can rotate on the fixed connector 26, with contacts and a friction adjustment which ensure a good connection between these two connectors.
- the movable connector 28a can however, in use, be immobilized axially on the shaft 38 and relative to the fixed connector 26, by means of a rotating stop ring 44 the front of which is screwed onto the rear of the mobile connector 28a.
- the shaft 38 of the fixed connector 26 comprises a collar 48 which is, in this example, associated with a overcome (not referenced) with low coefficient of friction.
- the collar 48 is trapped axially between the ring 44 and the movable connector 28a.
- this arrangement has functional clearances such that the stop ring 44 can be screwed and tightened on the movable connector 28a, without there being any jamming of the ring 44-connector 28a assembly. on the collar 48, and therefore on the fixed connector 26.
- the ring 44, the movable connector 28a, the rear 22 of the instrument 1a and the nut 16 can rotate together, around the fixed connector 26 and relative to the longitudinal axis L1 of the attachment 8a and of the pipe 10, to allow the instrument to be rotatable at this level of the equipment, in order to offer the practitioner greater freedom of movement in his manipulations, during processing.
- the nut 16 of the attachment 8a is advantageously composed, at the front, of a removable sleeve 50a and, at the rear, of a socket 52 which can be connected to the sleeve 50a by a screw-nut system, consisting of a first thread 54 formed at the front of the sleeve 52 and a second thread 56 which is intended to be screwed onto the first and which is formed at the rear of the sleeve 50a.
- the sleeve 50a is on the other side intended to be fixed on the rear of the dental instrument la, in particular via the threads 18 and 20, which makes it possible to mechanically subject the attachment 8a and the dental instrument la .
- first surface bearing 58a formed, in this example, in the bottom of a housing of the sleeve 50a, in the vicinity of the thread 18.
- This bearing surface 58a has the shape of an annular shoulder which cooperates by axial pressure on a shoulder 60 , made in this example on the connector mobile 28a, and which abuts on the bearing surface 58a of the sleeve 50 when the nut 16 is screwed onto the rear part 22 of the engine 1a. This ensures that there is contact and sealed communication between the connection means of the attachment 8a and the connection means of the instrument 1a.
- FIG. 3 represents an attachment 8b according to the invention, coupled to an instrument 1b of a second type, constituted in this example by an electric motor having a rear part having a second specific configuration.
- the removable sleeve 50b of the nut 16 is different from the sleeve 50a shown in Figure 2. More particularly, the length of these removable sleeves 50a and 50b and the geometry of their front part are adapted to the type of instrument la, lb to which the attachment 8a, 8b must be connected.
- the attachment 8b of FIG. 3 is equipped with a movable connector 28b different from the movable connector 28a which equips the attachment 8a, in order to ensure the adaptation of this attachment 8b on the rear of the instrument lb.
- the total length L2 of the stop ring 44 (FIG. 4) is approximately 5 mm.
- This ring 44 has at its periphery, and in particular at the rear, fingers 45 (here four at 90 °) which protrude from the rear of the ring 44, in the longitudinal direction and which also extend in the radial direction . These fingers 45 constitute inter alia means for gripping the ring 44 which allow it to be manipulated in rotation.
- the stop ring 44 has a length and a shape such that it can be taken easily by hand. In this example, the ring 44 is therefore provided so that it can be actuated manually so as to allow a technician in particular to screw it in and unscrew it to change the mobile and removable connector 28a by another type of connector 28b.
- the ring 44 could be given another shape to allow it to be actuated for example by a specific tool.
- the range of movable fittings and the range of sleeves is not limited to that described, but can be extended to other types of fittings and sleeves, depending on the geometry of the instruments that are seeks to connect with attachment.
- the sleeve 50a, 50b has a length significantly greater than that of the sleeve 52, this sleeve 50a, 50b enveloping the removable connector 28a, 28b of the connector 24, as well as the stop ring, 44 and extending behind this ring 44 to come and hang on the socket 52.
- the socket 52 has a total length of about 4.2 mm, while "that the sleeves 50a and 50b have respective total lengths of about 35 and 32.2 mm.
- the technician separates the removable sleeve 50a, 50b from the attachment by the unscrewing, it has direct access to the ring 44 without the need to push the socket 52 backwards.
- the sleeve 52 extends essentially behind the stop ring 44, towards the rear of the equipment, in the direction of the pipe 10, and only covers the hollow body 30. Therefore, in the absence of the removable sleeve 50a, 50b, the practitioner can, if he wishes, grasp both the ring 44 and the sleeve 52 which can rotate together. It will further be specified here that the ring 44 and the sleeve 52 both remain permanently on the attachment and that they cannot be detached therefrom, at least without disconnecting the pipe 10 and its connection means R from 1 ' unit S.
- the internal diameter Dl of the sleeve 52 is, in particular at the front of this sleeve 52, less than the rear external diameter D2 of the stop ring 44, if although the stop ring 44 can act as a stop with respect to the sleeve 52 and it can block the axial movement of this sleeve 52 towards the front.
- the socket 52 cannot therefore be lost, if the pipe 10 is not disconnected from the unit S.
- the sleeve 52 fulfills this axial holding function, in place of the sleeve 50a (FIG. 2), since it comprises at the front a front bearing surface 58b which abuts, at the rear of the ring 44, against a bearing surface 62 formed by the free end of the fingers 45.
- the sleeve 50b when the sleeve 50b is screwed onto the rear 22 of the instrument lb via the threads 18 and 20, the nut 16 pulls the rear of the instrument lb.
- the socket 52 bearing against the ring 44, makes it possible to block the movable connector 28b against the rear of the instrument lb, in order to ensure the connection between the attachment and the instrument lb.
- the front bearing surface 58b of the sleeve 52 constitutes its most front edge, so that the sleeve 52 does not extend beyond the rear bearing surface 62 of the ring 44, and cannot come to overlap this ring.
- the fingers 45 of the ring 44 delimit between them semi-oblong notches 46 opening out radially and making it possible to arrange between the rear of the ring 44 and the front of the sleeve 52 of communication channels allowing the exhaust fluid to flow from the rear of the instrument 1b, towards the pipe 10.
- the insert 34 is, as seen in FIG. 2, indented on the side while ⁇ that the periphery of the movable connector 28b ( Figure 4) has cavities 47 allowing this fluid to flow between the sleeve 50b and this connector 28b.
- the rear of the sleeve 50b comprises, before the thread 56, an interior annular chamber 49 which also allows the exhaust fluid to circulate between the ring 44 and the sleeve 50b.
Landscapes
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Dentistry (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Shovels (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97954455A EP0948294B1 (fr) | 1996-12-27 | 1997-12-22 | Attachement tournant polyvalent |
DE69734724T DE69734724T2 (de) | 1996-12-27 | 1997-12-22 | Drehende mehrzweck-befestigungsvorrichtung |
AT97954455T ATE310461T1 (de) | 1996-12-27 | 1997-12-22 | Drehende mehrzweck-befestigungsvorrichtung |
JP52959898A JP3892485B2 (ja) | 1996-12-27 | 1997-12-22 | 多用途の回転接続用組立体 |
US09/319,432 US6033220A (en) | 1996-12-27 | 1997-12-22 | Multi-purpose revolving connecting assembly |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR96/16129 | 1996-12-27 | ||
FR9616129A FR2757763B1 (fr) | 1996-12-27 | 1996-12-27 | Attachement tournant polyvalent destine a etre utilise avec des instruments dentaires |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998029052A1 true WO1998029052A1 (fr) | 1998-07-09 |
Family
ID=9499231
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1997/007243 WO1998029052A1 (fr) | 1996-12-27 | 1997-12-22 | Attachement tournant polyvalent |
Country Status (7)
Country | Link |
---|---|
US (1) | US6033220A (fr) |
EP (1) | EP0948294B1 (fr) |
JP (1) | JP3892485B2 (fr) |
AT (1) | ATE310461T1 (fr) |
DE (1) | DE69734724T2 (fr) |
FR (1) | FR2757763B1 (fr) |
WO (1) | WO1998029052A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1145688A1 (fr) | 2000-04-14 | 2001-10-17 | Bien-Air Sa | Raccord tournant à connexion rapide pour relier un instrument dentaire à une source d'alimentation |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070190487A1 (en) * | 2004-12-16 | 2007-08-16 | David Pollock | Unitized modular ultrasonic handpiece cable connector |
CA2414908A1 (fr) | 2002-12-20 | 2004-06-20 | Derek Turner | Piece a main dentaire |
AT411867B (de) * | 2003-02-20 | 2004-07-26 | W & H Dentalwerk Buermoos Gmbh | Adapter für ein medizinisches lichtgerät |
US9877798B2 (en) * | 2005-04-12 | 2018-01-30 | Spring Health Products, Inc. | Electric dental handpiece |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0369043A1 (fr) * | 1988-11-14 | 1990-05-23 | Siemens Aktiengesellschaft | Pièce à main dentaire pourvue de moyens qui permettent une connexion compatible avec divers types d'accouplement rotatif |
EP0393364A1 (fr) * | 1989-04-20 | 1990-10-24 | Bien-Air Sa | Pièce à main dentaire |
FR2733680A1 (fr) * | 1995-05-05 | 1996-11-08 | Bien Air | Attachement destine a connecter differents types d'instruments dentaires, instrument prevu pour un tel attachement et equipement pourvu de cet attachement et de cet instrument |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5476379A (en) * | 1993-11-04 | 1995-12-19 | Disel; Jimmy D. | Illumination system and connector assembly for a dental handpiece |
US5511977A (en) * | 1994-10-24 | 1996-04-30 | Futch, Jr.; Walter B. | Method for converting dental handpieces to quick disconnect |
US5733117A (en) * | 1995-10-06 | 1998-03-31 | Micro Motors, Inc. | Sterile fluid delivery system and method |
JP3040639U (ja) * | 1997-02-17 | 1997-08-26 | 株式会社ナカニシ | 歯科用ホースのハンドピース側端部構造 |
-
1996
- 1996-12-27 FR FR9616129A patent/FR2757763B1/fr not_active Expired - Fee Related
-
1997
- 1997-12-22 JP JP52959898A patent/JP3892485B2/ja not_active Expired - Fee Related
- 1997-12-22 DE DE69734724T patent/DE69734724T2/de not_active Expired - Lifetime
- 1997-12-22 AT AT97954455T patent/ATE310461T1/de active
- 1997-12-22 EP EP97954455A patent/EP0948294B1/fr not_active Expired - Lifetime
- 1997-12-22 WO PCT/EP1997/007243 patent/WO1998029052A1/fr active IP Right Grant
- 1997-12-22 US US09/319,432 patent/US6033220A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0369043A1 (fr) * | 1988-11-14 | 1990-05-23 | Siemens Aktiengesellschaft | Pièce à main dentaire pourvue de moyens qui permettent une connexion compatible avec divers types d'accouplement rotatif |
EP0393364A1 (fr) * | 1989-04-20 | 1990-10-24 | Bien-Air Sa | Pièce à main dentaire |
FR2733680A1 (fr) * | 1995-05-05 | 1996-11-08 | Bien Air | Attachement destine a connecter differents types d'instruments dentaires, instrument prevu pour un tel attachement et equipement pourvu de cet attachement et de cet instrument |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1145688A1 (fr) | 2000-04-14 | 2001-10-17 | Bien-Air Sa | Raccord tournant à connexion rapide pour relier un instrument dentaire à une source d'alimentation |
US6319003B2 (en) | 2000-04-14 | 2001-11-20 | Bien-Air S.A. | Quick fit revolving connecting unit for connecting a dental instrument to a power supply |
Also Published As
Publication number | Publication date |
---|---|
JP3892485B2 (ja) | 2007-03-14 |
EP0948294A1 (fr) | 1999-10-13 |
JP2001508331A (ja) | 2001-06-26 |
DE69734724T2 (de) | 2006-08-17 |
ATE310461T1 (de) | 2005-12-15 |
FR2757763A1 (fr) | 1998-07-03 |
FR2757763B1 (fr) | 1999-02-26 |
EP0948294B1 (fr) | 2005-11-23 |
DE69734724D1 (de) | 2005-12-29 |
US6033220A (en) | 2000-03-07 |
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