FR2619302A1 - Support allowing the attachment of instruments used in dental surgery in their order of use - Google Patents

Abstract

Support consisting of a right angled parallelepiped, designed to withstand repeated sterilisation treatments, on which are situated cavities whose axis may or may not be perpendicular to the principal plane of the support, referenced by a system of rows and columns marked on the said support, and intended to hold instruments in the order in which they will be used during an endodontic treatment.

Description

 The present invention relates to a support making it possible to maintain small dental surgery instruments in the order in which they will be used during the various manipulations that a person skilled in the art may have to perform during the treatment of patients coming under this surgery.

 The use of such a support allows a person skilled in the art a rational positioning of his instruments thus promoting the execution of the operations necessary for the treatment of the patient in the best conditions.

 The surface on which the support rests will preferably be identical to the upper surface of the support. However, it can, without drawback, have a larger dimension than this.

 More particularly, the invention relates to a support which is preferably in the form of a rectangular parallelepiped, one of the corners of which can possibly be truncated so as to favor orientation1 the location as well as the storage of said support in an appropriate housing.

 The upper face of the parallelepiped is pierced with cavities intended to house the instruments mentioned above, which are also called strawberries by those skilled in the art. Each cavity can either be blind, or completely cross the parallelepiped then having in its lower part at a distance from the lower edge of the support preferably between 1 and 3 mm, a symmetrical shoulder intended to hold the above-designated instrument (Fig. 4).

An arrangement such as this one has the advantage of making cleaning operations of such a support easier.

 The cavities are all intended to receive a specific device will therefore have different diameters depending on the size of the devices assigned to them.

 Each cavity being intended to receive an instrument whose functions are specific can be advantageously located and designated by a system of abscissa and ordinates, the cavities then being ordered in rows and columns. The characters allowing this designation may be indicated on the support by any appropriate means such as engraving, fixing by chemical processes, bonding, etc.

 The characters chosen to distinguish abscissa and ordered will advantageously belong to distinct systems of marking capital letters, small letters, Greek characters, Arabic numbers, Roman etc ...

 By way of example and without limitation, it is possible to number the cavities lengthwise by capital letters, the cavities in the widthwise direction by Roman numerals (I, 11, III ... ) (see Fig. 1).

 The axis along which the cavities which are mentioned above are oriented may be perpendicular to the main plane of the parallelepiped or have any inclination relative to this plane so as to make it easier to locate the instruments by the man of the Art.

 The sequences according to which the rows and columns governing the order of the cavities are organized may or may not be repetitive. This means that, for example, between two successive columns and / or lines the spacing existing between the centers of two neighboring cavities may or may not be identical, the distance existing for each neighboring line or column between the edge of the parallelepiped and the first cavity of the row or column considered can be identical or not.

 A staggered arrangement of two successive lines could be interesting by allowing those skilled in the art an optimal visibility of the instruments present on the support.

 It is possible to use supports whose number of rows and columns vary according to the specialty practiced by the practitioner.

Each row or column can be assigned to strawberries corresponding to a particular treatment sequence.

 Such supports will advantageously be made of materials repeatedly supporting the sterilization methods commonly used by those skilled in the art such as thermal, chemical or radiation sterilizations.

 The supports according to the present invention can be used without limitation more particularly in endodontics so as to allow the maintenance of the strawberries necessary for the conditioning of the teeth prior to the performance of a root canal treatment.

 The following examples illustrate the invention and do not limit it in any way.

EXAMPLE 1
Support constituted by a rectangular parallelepiped intended to be used in the practice of endodontics. This support has cylindrical cavities arranged in three lines called I, II, III and four columns A, B, C, D (Fig. 1). Lines I and III include four cavities each; line II includes two cavities; lines I and II are characterized by the fact that the axis along which the cavities orient, form an angle preferably between 80 and 40 with the main plane of the parallelepiped, more particularly chosen between 65 and 55. The axis along which the cavities of line III are oriented will preferably be perpendicular to the main plane of the parallelepiped.

 Two cavities of the same line I, II or III, will preferably be placed at regular and equal intervals. In particular, the distances existing between the centers of two successive cavities of the same line I, II or III whatever it is, are identical. In addition, the distances separating the cavities of line III from the edge corresponding to the width of the parallelepiped are identical to those separating the corresponding cavities of line I from this same edge.

 For example, the length of the parallelepiped may be between 40 and 60 mm; the width between 35 and 50 mm; the thickness of the support may preferably be chosen between 5 mm and 30 mm, more particularly between 5 mm and 10 mm.

 The depth at which the cutters are inserted into the support will preferably be between 3 mm and 6 mm.

 For information only, let us mention a distance between 3 and 9 sima, between the edges of the support and the center of the cavity IA, and a distance between 10 and 15 mm, between the centers of two neighboring cavities on the same line. The distance existing between the center of the cavity 11A and the edge corresponding to the width of the support (see FIG. 1 to 3) will preferably be chosen between 10 and 20 mm. The distance between the center of this cavity and the other edge will preferably be between 15 and 25 mm.

 The cavities of line III may be distant from the edges corresponding to the length of the parallelepiped by a length preferentially chosen between 5 min and 10 mm.

 Sufficient space should be left for the indication of characters.

 The corner located in the extension of line III will be truncated so as to favor the orientation or the location of the support by those skilled in the art where the storage of said support in an appropriate passenger compartment.

 More particularly, said support is led to receive two main types of milling cutters, called milling cutter for turbine and milling cutter for contra-angle.

 The diameter of a turbine cutter is 0.16 ISO units; the diameter of a contra-angle cutter is 0.23 liSO unit.

 The dimensions of the cavities present on the support depend on the nature of the cutter which is intended for it; the cavities must allow each strawberry to be fixed to the support with gentle friction.

 In the case where the cavities pass through the support from side to side with a shoulder as shown (Fig. 4), the diameter of the narrowest part will be less than 0.16 unit 150 for a cavity intended to receive a cutter for turbine and less than 0.23 unit 150 for a contra-angle cutter. This diameter will preferably be chosen as being respectively between 0.22 and 0.15 unit 150 for a milling cutter for contra-angle and between 0.15 and 0.10 unit 150 for a milling cutter for turbine.

EXAMPLE 2 Use of a support according to Example 1 to place
sequentially instruments usable in
endodontics.

 Lines I, II and III will correspond to three main lines of action.

 On line I, the strawberries corresponding to the treatment of mortified, slightly dilapidated teeth will be fixed. The cutters that are fixed in the corresponding cavities are cutters for a turbine.

 The cutter fixed in IA allows the flattening of the occlusal surface when the decay rate of a tooth requires the imperative installation of a crown.

 The strawberries fixed in IB and IC allow the safe search of the pulp chamber. They differ only in their effective, respective diameter, chosen according to the preoperative radiography.

 The strawberry fixed in ID, allows an optimal opening of the pulp chamber by the continuity of its walls with the canal walls.

 The instruments fixed on line II will be used for the treatment of heavily decayed teeth. The cutters corresponding to line II are preferably cutters known as contra-angle cutters, used at speeds lower than those at which the cutters of line I are used.

 The cutters fixed in IIA and B are used to curett the decayed dentin. They differ only in their diameter.

 The strawberries fixed in III, correspond to particular treatments.

 The cutter fixed in III A, preferably corresponds to a cutter allowing the perforation or elimination of any restoration inlay, amalgam, cast crown or ceramic. It is a turbine cutter.

 The cutter fixed in III B, preferably corresponds to a specific cutter used to disassemble the pivots or search for the root canals. It is a contra-angle cutter.

 The cutter fixed in III C, preferably corresponds to a cutter for gingivectomy. It is a turbine cutter.

 The cutter fixed in III D, preferably corresponds to a cutter called peripheral dehulling for the installation of a copper ring. It is a turbine cutter.

EXAMPLE 3: Figures
Figures 1 to LI schematically explain the invention.

Claims (11)

 1 / Support of rectangular parallelepiped shape on which are arranged cylindrical type cavities of identical or different diameter, intended to receive instruments or cutters capable of being used in an order specially determined on said support during surgical procedures dental and more particularly in endodontics.  2 / Support according to claim 1, characterized in that the cavities which are present there are listed using a system of abscissa and ordinates.  3 / Support according to any one of claims 1 or 2, characterized in that the cavities which are present there are listed using a system of abscissa and ordinates symbolized by letters or / and numbers engraved or fixed on said support.  4 / Support according to any one of claims 1, 2 or 3, characterized in that the cavities which are present there are blind.  5 / Support according to any one of claims 1, 2 or 3, characterized in that the cylindrical cavities which are present there cross the said support right through by presenting in their lower part, at a distance from the lower edge of the support , preferably between 1 and 3 min, a shoulder symmetrically narrowing the cylindrical cavity, so as to correctly maintain the instruments that they are likely to receive.  6 / Support according to any one of claims 1 to 5, characterized in that one of the edges of said support is truncated so as to favor the orientation, the location or the storage of said support in a receptacle provided for this effect.  7 / Support according to any one of claims 1 to 6, characterized in that the angle that forms the axis of the cylindrical cavities present on said support can be, depending on the considered cavities or, perpendicular to the main plane of said support or else, form with the latter a variable angle preferably between 40 and 800.  8 / Support according to any one of claims 1 to 7, characterized in that the cylindrical cavities which are present there are organized in three rows and four columns, each cavity being intended to receive an instrument having a very particular function during carrying out treatments in dental surgery, more specifically in endodontics, the cavities belonging to the same line being more specifically intended to receive instruments corresponding to the treatment of conditions justifying comparable therapy, the entire organization in rows and columns corresponding to a treatment sequence used in endodontics.  9 / Support according to claim 8, characterized in that the cavities which are present there are distributed in three rows and four columns, each row and each column being characterized by a distinctive sign present on said suppart, the extreme lines comprising four cavities cylindrical, the central line two cylindrical cavities, the central line cavities being staggered relative to the cavities of the two outer lines, the distance between the centers of two neighboring cavities of the same line being identical for all lines, the lengths of the line segments, which pass through the centers of the cavities of the outer lines, which separate the center of the outer cavities of the lines outside the edges of the corresponding support being equal.  10 / Support according to any one of claims 8 or 9, characterized in that the axes of the cylindrical cavities of one of the two outer lines are perpendicular to the main plane of said support, the axes of the cylindrical cavities of the other two lines forming with the main plane of said support an angle chosen between 40 and 800 preferably between 55 and 650.  11 / Support according to any one of claims t to 10, characterized in that it is made of a material resistant to the repeated use of sterilization by thermal, chemical or using radiation.