FR2536276A1 - WORKSTATION FOR ORTHODONTIC WORK - Google Patents

Abstract

1. A working place for preparing wire arches (A) for orthodontic works, said working place being characterized in that it comprises at least the following elements grouped in one set : a surface (1) to be lighted by transparency, for examining radiographs against the light, and an apparatus for controlling said surface lighting, a projector (2) of arch curve models with a translucent projection screen (3) and at least one control and/or adjustment apparatus (26), two electric terminals (4, 4') each able to receive one end of an arch (A) and each connected to one electric wire (4a, 4b), one of said wires being provided with a switch (5), a vat (6) for reduction of the arches (A) for receiving an etching agent or an electrolyte, a vat (7) able to receive an etching agent and/or electrolyte neutralizing solution, and mechanical connection means (8) maintaining associated all said elements and making said set look like a piece of furniture.

Description

The present invention relates to a workstation for executing

  orthodontic work and in particular for the preparation of metal wire arches intended to be applied to the teeth of a jaw in order to straighten them. These orthodontic works require a large amount of material for implementation, such as a negatoscope

  to examine the x-rays, electronic trays

  lysis and neutralization, means of welding and heating O means of heat treatment etc. All this material occupies a lot of space in a dental office which is already heavily encumbered by various other conventional apparatus and instruments. the present invention is to overcome this disadvantage by providing the practitioner a workstation grouping together

  the material necessary for orthodontics, including

  is thus reduced and the use of which is

  particularly convenient for the practitioner.

  According to the invention, the workstation for performing orthodontic work, in particular for

  the preparation of wire arches, is

  characterized in that it comprises at least the following elements grouped into a set g a transparency-brightenable surface O to examine X-ray radiographs O and a control member of the illumination of this surface O a projector of curve curves arc O with translucent projection screen and at least one control and / or adjustment member O two electrical terminals Es each capable of receiving an end of an arc and each connected to an electrical conductor O one of these conductors c Domportant a switch an arc reduction tank that can receive a cleaning agent or an electrolyte,

  a container capable of receiving a neutral solution

  The mechanical stripping agent and / or the electrolyte and mechanical connecting means now all these elements in combination and conferring on this ensenble the appearance of a piece of furniture o The practitioner can thus perform all orthodontic work on this workstation that all the material he needs O Thus, the illuminable surface allows him to examine the X-rays and to make precise measurements from them. The Curve Projector allows him to reproduce on a screen some forms of arcs ideaux presenting variable proportionso It is then enough for him to bend the wire of the arc to confornmer the latter to the curve projectedeo The two electrical terminals parmettent to heat 1 arc by Joule effect so as to obtain

  an annealing of the bow conferring on him the

mechanical tees desired

  The reduction bath makes it possible to polish

  electrolytic wise of 10 larco All these devices can be ordered by the practitioner by operating buttons on a control panel

  Other features and advantages of the invention

  will still appear in the following description

  In the accompanying drawings given in non-limiting examples, FIG. 1 is a perspective view of a

  Workstation 1 according to the invention -

  FIG. 2 is a perspective view of the upper part of the arc recieving device.

  FIG. 3 is a view in longitudinal section

  the device of annealing arcs;

  FIG. 4 is a longitudinal sectional view

  on a large scale, following the plane IV-IV of Figure-12 showing the arc curves model projector; Fig. 5 is a plan view showing the projection screen and the adjustment wheel of the aforementioned projector; Fig. 6 is a schematic view showing a computer display screen assembly associated with an X-ray examination surface.

  equipped with an electromagnetic grid and stylet.

  We see in Figure 1 that the de-tra station

  for performing orthodontic work, in particular

  for the preparation of wire arches essentially comprises the following elements grouped together into a surface (1) which can be illuminated by transparency, to examine radiographs by means of transparency, and a switch controlling the illumination of this surface, arranged on a control panel, -aprojector (2) arc curve models, with translucent projection screen (3) and at least one control member and / or adjustment (26), two electrical terminals (4, 4 ') each capable of receiving an end of an arc (A) and each connected to an electrical conductor (4a, 4b), one of these conductors comprising a switch (5) (Eirfg Dr 52 d 3),

  a tray (6) for reducing arcs

  get a cleaning agent or an electrolyte O

  a container (7) adapted to receive a neutral solution

  tracing the etchant and / or the electrolyte, and

  mechanical connection means (8) now

  all these elements in association and conferring

  to this set the appearance of a piece of furniture.

  In the example shown, the connection means

  its mechanics are constituted by an enclosure (8) mounted on feet (9) giving it the appearance of a table This enclosure (8) contains the elements (1, 2, 3, 4, 5, 6, 7) of which the adjustment devices

  and control (10) are arranged on one side la-

  (11) of said enclosure The top (13) of this enclosure (8) is made of plastic and

  has cells receiving the two bins (6,7).

  The top (13) of this chamber (8) also has an opening (12) below which the electrical terminals (4, 4 D) are located. Moreover, this plastic top (13) has the outer surface of the projection screen

  (3) and the surface (1) brightenable by transparency.

  FIG. 1 also shows that sliding rule cephalometric measuring means

  the graduated surface (14) are arranged on the illuminated surface (1).

by transparency.

  The workstation further comprises electronic welding means (15, 16) and a gas torch (17) placed on the top (13) of the enclosure (8) and making it possible to execute different

  welding or heat treatment work.

  Figures 2 and 3 show that the opening

  re located above the two electrical terminals (4, 4 ') able to receive each end of an arc (A)

  is provided with a shutter plate (19), preferably

  insulation material which is pierced with a hole

  (20, 21) above each of the two terminals (4, 4 ').

  One (21) of these holes is elongate in a direction through the other hole (20). In addition, there is provided a hinged lid (22) which can be folded over the shutter plate (19).

  cover (22) is provided with a return spring.

  In the example shown the electrical terminals

  each consists of a bowl (40 4 ') open upwards and containing mercury or other conductive liquid in which the ends of the arc (A) are intended to dive, the mercury contained in these bowls (4 e 4 ') is in contact with metallic studs connected 2 of the electrical conductors (4 a, 4 b) connected to

  a source of electrical power through

  5 o The voltage of this source is sufficient for the arc A to be traveled

  by a current that can heat this arc by Jou-

  at a annealing temperature of the order of 700 to 800 C giving it the desired mechanical properties. The arcuate model projector (2) extending under the top (13) of the enclosure (8) is shown in detail in FIG. 4. dioptric projection system (24) which is movable on its optical axis (0) so as to obtain a variable projection ratio. An autofocus system makes it possible to project a sharp image. The model curve is carried by a transparent support (24). a) located in front of a group of lenses (24 b, 24 cooo) o At the rear of this group of lenses (24 b, 24 e oo) is arranged a light bulb (27) We also see on FIG. 4 shows that the optical axis (0) of the model projector (2) is parallel

  on the top surface (13) of the enclosure and meets

  a mirror (25) at 45 located below the projection screen (3) The control of the displacements of the dioptric system (24) is ensured by a wheel

2536 Z 76

  (26) a part of which passes through the top (13) of the enclosure (8,) so as to be accessible by the practitioner (see also FIG. 5). The top (13) of the enclosure (8) also has (see Figure 1) a support (31) for tools such as clamps (32) and a support (33) receiving different metal son to be shaped

in arches.

  The front face (11) of the enclosure (8) cc, D carries a storage drawer (34) and a control panel (l Oa) having the various switches or buttons coenmande (10) for the startup of different devices of the workstation compliant with the invention O These buttons counde

  (10) can be constituted by sen-

sitives.

  From the pecific description it therefore follows that

  the different devices and devices needed for orthodontic work are grouped together in a rational and compact way in a single piece of furniture, connected to one or more smiles

these electric current.

  Thus, thanks to the illuminable surface (1), the practitioner can conveniently examine radicraphis and carry out studies and cephalometric measurements.

very precise questions.

  By acting on the wheel (2 e) of setting the projector (2) curves models, the practitioner can reproduce on the screen (3) located on the top (13) of the enclosure (8), a curve of variable homothetic dimensions, adapted to the profile of the arc that he wants to achieve and in particular 3 erm inter-premolar specific to each patient to receive this arc It is sufficient for this purpose to reserter 10 aforementioned card on the screen (3 ) $ project'br

  on this screen the arc curve adapted to this

  then bend an archwire so that the curvature of the archwire matches the profile of the projected arc.

  The practitioner can then anneal this arc made

  It is made of a special stainless steel alloy by means of the annealing device shown in FIGS. 2 and 3. To this end, the ends of the arc A are introduced into the holes (20, 21) in order to immerse them in the mercury content. in the cavities (4, 4 ') The hole

  21 allows the setting up of arcs of diffe-

  rentes dimensions Then simply activate the switch 5 to allow the passage of the current in the arc The latter heats up by Joule effect

  at a temperature between 700 and 8000 C

thus, its annealing.

  The annealing of the arches A has the effect of oxidizing and tarnishing the metal surface.

  the arc is placed in the reduction bath 6.

  In this bath 6, orthophosphoric acid is electrolytic polishing of the arc which has the effect of stripping the surface of it In some cases it is possible to reduce the diameter of the wire of the arc on a certain part of it , this

  last being alone in the bath.

  The bow is then immersed in bath 7 of

  neutralization consisting of a bicarbonate solution

sodium hydroxide or the like.

  Naturally, the invention is not limited to the exemplary embodiment just described and many modifications can be made to it.

  without departing from the scope of the present invention.

  So we can integrate in the workstation

  according to the invention other devices or.

  devices than those described and in particular a microfor to perform certain thermal treatments 253627 e. Furthermore, as shown in FIG. 6, the X-ray examination surface (1) could

  include beneath it an electromagnetic gate (35).

  On the radiograph placed on this surface (1) is placed a stylet (36) with which the practitioner can follow the cephalometric trace of the radiography

  which is then reproduced on the visualization screen

  tion (37) which is connected to the stylet (36).

  The computer (38) which is associated with the display screen (37) has in memory a set of data such as the width of the teeth and the available space which makes it capable of delivering the diagnosis

  and the treatment plan according to the cephalographic

  metric that is reproduced on the screen (37).

  According to these data, the computer can display on the screen (37) the corrected cephalometric profile of the patient to be treated, as well as the profile

resulting skin.

  On the other hand, the workstation according to the invention can be mounted on wheels to enable its movement. Furthermore, this workstation can replace or supplement the conventional shelf connected to the movable arm of a unit or cart that

  usually found in dentist-dentists

your.

Claims (6)

CLAIMS Workstation for orthodontic work, especially for the preparation of wire arches, this workstation being characterized in that it comprises at least the following elements grouped together a surface (1) illuminable by transpa = Rence O to examine X-ray radiographs O and a control member of the illumination of this surface O a projector (2) of arc curve models O with translucent projection screen (3) and at least one control member and / or setting (26) e two electrical terminals (40 4 ") each receiving an end of an arc (A) and each connected to an electrical conductor (4 a, 4 b) 10 one of these conductors comprising a switch (5) e an arc reduction tank (6) capable of receiving a pickling agent or an electrolyte, a tank (7) capable of receiving a solution neutralizing the pickling agent and / or the electrolyte, and mechanical connection means (8) main = holding all these elements in combination and giving this ensenble the appearance of a piece of furniture 2 Workstation according to the claim characterized in that said mechanical connecting means (8) are constituted by an enclosure m.ontée on feet (9) him giving the appearance of a table O this enclosure (8) containing said elements (1, 2, 3, e O 5, 6 7) whose control and control elements (10) are arranged mainly on a lateral face ( 11) of said enclosure O and in that the top (13) of this enclosure (8) is plastic and comprises cells (6 7) receiving the two bins, and an opening (12) below which there are said electrical terminals (4, 4 i) that top (13) of plastic material housing or containing the outer face of the projection screen (3) and the surface (1) brightenable by transparencyo   3 o Workstation S elon the claim   1 or 2 e characterized in that graduated sliding gleometrical measuring means (14) are arranged on the surface (1) eclairable transparentlyo   4 o Workstation according to the claim   2 or 3, characterized in that it further comprises top-mounted electronic welding means (15, 16) (13) of said enclosure O o Workstation according to any one of the preceding   claims 2 to 4, characterized in that   comprises a gas torch (17) mounted on the top of the enclosure 6 o Workstation according to any one of claims 2 and 5, characterized in that   the opening located above the two terminals 6 lec-   (4, 4 ') each able to receive one   ex-tremite of an arch (A) is furnished with an ob-   preferably insulating turner (19) which is pierced with a hole (20, 21) above each of the two terminals (4, 4 '), at least one (21) of these holes being elongated in one direction passing through the other hole (20) and having a hinged lid (22) which is foldable on the shutter plate (19)   7 Workstation according to the claim   6, characterized in that said electrical terminals (4, 4 ') are each constituted by a bowl (4, 4 ") open upwards and conetenant mercury.   8 Workstation according to any one of   of the preceding claims, characterized in that   that the projector (2) of arc curve models comprises a projection diopic system (24) which is displaceable on its optical axis, so as to obtain a variable projection ratio with auto focus.   9 Workstation according to larevendica-   8, characterized in that the optical axis (0)   of the model projector (2) is parallel to the   face of the top (13) of the enclosure and meets a mirror (25) at 45 located below the projection screen (3), and in that the control of the displacements of the dioptric system is ensured by a wheel ( 26) some of which crosses the above (13) of the enclosure (8).   Workstation according to any one   of the preceding claims, characterized in that   it further comprises at least one support (31) for tools, disposed on the top (13) of the enclosure (8) and a support (33) for arcing son.   11 Workstation according to one of the   previous indications, characterized in that it   takes under the examination screen (1) an electronic grid   magnet (35), an electromagnetic stylet (36) displaceable on a cephalometric radiograph placed on the grid (35), this stylet being connected to a display screen (37) itself associated with   a computer (38) having in memory a certain   cephalometric data and who is fit   to reproduce on the screen (37) the cephalome profile correction of the patient.