FR2544193A1 - Manual mixer for dental materials - Google Patents

Abstract

The invention relates to a device allowing dental products to be mixed. This device comprises: a support bowl 1 into which there are fitted a mixing bowl 2, a mixing paddle 3 which can be removed from the lid 4, which is perpendicular to the centre of the mixing bowl 2 and held by the lid 4 which comprises a manoeuvring button 5 for giving a rotary movement to the mixing paddle 3. The device according to the invention is in particular intended for mixing powders.

Description

Manual mixer for dental materials
The present invention relates to a device for kneading dental products.

devices of this kind already exist on the market for mixing these products. The techniques commonly used by users are
either manual mixing using a plastic bowl and a spatula
either mixing using manual machines
or a mixing with electric machines.

 Dental products which require mixing are in principle impression materials, which are in the form of powder, to which water is added so that after spatulation they become impression pastes.

 For an optimal use of these products and so that they return all their physical properties, it is imperative that the dough is well crushed against the walls of the bowl, that is to say that it is well kneaded and not just mixed with water.

 Thus, it frequently happens that with the technique of hand mixing using a spatula and a bowl, a negative impact on the clinical results is recorded for lack of good mixing.

In contrast, the mixing technique using manual machines is very good, but these mixers are not very functional and impractical to clean. Indeed, the mixing blades of these devices are attached to the lid and when the powder has become imprint paste, it is advisable to use a spatula in order to be able to take the material from the bottom of the container, and put the said paste in the holder. footprint. In addition, we must clean the entire device after each use for reuse0
It is the same for electric machines, which are more or less sophisticated. This technique also allows good mixing, but the major drawback is a high codt at purchase for practitioners and, moreover, many parts are to be cleaned after each use.

 In summary, the most widely used technique is hand mixing, but it carries the risk of poorer clinical results; with regard to kneading machines, these are not very functional and have a relatively expensive coat.

 The invention overcomes the aforementioned drawbacks. It is indeed possible to be able to take with the mixing paddle the dough which has been kneaded by it and, moreover not to enter after each use to clean the device for reuse, which saves time appreciable for the user.

This mixer has s
a mixing paddle removable to the cover which allows firstly to mix and crush the powder and water against the walls of the bowl so that the material becomes a paste and, secondly this mixing paddle is used to take off the dough obtained.

 a base supporting a bowl to remedy the immediate problem of cleaning the bowl. It suffices to remove the mixing bowl from its base after each use and, to replace it with a clean bowl, it is the same for the spatula.

We will describe below a prototype according to the invention
Figure 1 shows a top view of a device according to the invention.

Figure 2 shows, in section, this device. - - -
This device therefore comprises a support bowl (1) in which is embedded a mixing bowl (2), a spatula (3) perpendicular to the center of the mixing bowl (2) held by a cover (4) comprising an operating button ( 5) to give a rotary movement to the spatula.

 The support bowl (1) having dimensions of the order of 10 centimeters for the height, and 15 centimeters in diameter in its upper part, and 12-centimeters in diameter at its base. This support bowl has recesses (6) at its bottom.

 So that the mixing bowl (2) can fit into the support bowl (1) it has two features; a semi-spherical shape having a few millimeters less than the support bowl, and at its base edges (7) which come to be embedded in the recesses (6) of the support bowl. The mixing bowl rests on the upper part of the support bowl thanks to a rim (8).

 the mixing blade (3) is perpendicular to the center of the mixing bowl (2) and adjoins at all points the half-circumference of the bowl. This is intended to obtain optimum mixing. The mixing paddle is thicker in its upper part (9) in order to prevent the powder from collecting at the top of the bowl during mixing. At the end of the mixing blade, a square (a0) allows the mixing blade to be fitted and removed from the cover as desired.

 According to FIG. 2, the mixing paddle has locations (11) specially designed for holding, in order to allow the digital setting in order to take the kneaded paste from the bottom of the mixing bowl (2).

 The cover (4) was the subject of a patent deposit n07220266; it includes: notches (12) for holding the device during mixing, an operating button (5), a casing (13) protecting the drive part.

 The device according to the invention is particularly intended for the mixing of powders.

Claims (5)

REVEM> ICATI ONS  1) Device for kneading dental products in order to obtain pasta, characterized in that it comprises a support bowl (1) in which a mixing bowl (2) fits, and a mixing blade (3) removable from the cover (4) allowing the picking of the kneaded dough.  2) Device according to claim 1 characterized in that the mixing bowl (2) is simply fitted into the support bowl (1) by recesses (6).  3) Device according to claim 1 characterized in that the mixing blade (3) is connected to the cover by a square (10) which allows the mixing blade (3) to be removable from the cover (4).  4) Device according to claim 3 characterized in that the mixing blade (3) has on its upper part of the locations (11) for the maintenance, to allow the digital setting for the purpose of removing the kneaded dough from the bottom of the bowl mixing (2).  5) Device according to any one of the preceding claims ca-acterized in that it is made of plastic.