DE8217950U1 - DISCHARGE DEVICE FOR DENTAL IMPRESSION MATERIALS - Google Patents

Description

description

The invention relates to a dispensing device for dental impression materials, consisting of a storage container for an impression compound and a further storage container for a hardener.

Impression compounds are used to make impressions of teeth and dentures. Impression materials of a certain composition are not self-curing. Shortly before use, a hardener must therefore be added to the actual impression material will.

Dispensing devices for such impression materials are common, which consist of two separate containers, one with the actual impression material and the other The container is filled with the hardener. These masses are then manually or mechanically in the dental practice in f brought together in a given mixing ratio, | shortly before the impression is taken. This is f

I but awkward because the person concerned is always careful

must ensure that the specified mixture I

Ratio, for example 1: 1, is precisely adhered to. £

So it must be from the separate storage containers |

the respective masses in the prescribed volumes | and can only then be mixed.

The invention avoids these disadvantages. It is based on the task of a dispenser for dental To propose impression materials, when they are actuated, a volume ratio between the two masses to be mixed with one another is set.

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To solve this problem, the invention is characterized in that that both reservoirs are designed as syringes, the cylinders of which are on a common lateral surface abut one another and which are integrally connected to one another, the plungers of both syringes also are integrally connected to one another and can be operated together.

In order to dispense the two masses provided in the syringes, only the two have to be connected to one another Pistons of the two syringes are actuated so that the two masses in one from the dispensing openings of both syringes jointly emerge at a predetermined volume ratio. So you need ksin's attention to each to put the desired mixing ratio.

This mixing ratio is based on the free cross-sections of the two cylinders of the syringes. Amounts to the ratio is 1: 1, as it often happens, both syringes are equal to each other. But everyone can do it too other desired volume ratio can be set, for example 1: 2 etc.

Because the two masses have to be mixed with one another after they have been dispensed, it is preferred if the dispensing openings both syringes are offset towards the common surface line. The two dispensing openings are then As close as possible to each other, which makes the subsequent mixing easier.

For joint actuation of both pistons, it is preferred if the actuating ends of both pistons are connected by a joint.

same actuating plate, which extends transversely to the axes of both syringes, are connected to one another.

Furthermore, it is preferred if a common plate is provided for both cylinders, which are attached to their Opening extends transversely to their axes. This ensures sufficient stability of this component and makes it easier also the introduction of the pistons into the cylinders.

Since the two syringes and the two plungers are each integral, it is preferred if these two Components are molded in one piece.

Around the dispensing openings of both syringes after use To be able to close, it is preferred if a closure part for both dispensing openings can be easily detached

j is provided between the actuating ends of the pistons.

The closure part is therefore injected together with this component and can then be easily removed be placed on the dispensing openings.

It is also preferred if the actuating ends are closed Have tips that are opened by cutting off the tips the first time you use them.

The invention is explained in more detail below using an exemplary embodiment from which further important ones Characteristics. It shows:

Fig. 1 - a view of the first structural unit with the two integrally connected to one another Cylinders;

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Fig. 2 - a view of the second structural unit with the two integrally connected to one another Piston with closure part;

Fig. 3 - a section along the line III-III of Fig. 2;

FIG. 4 shows a section along the line IV-IV of FIG. 2;

FIG. 5 is a view in the direction of arrow A of FIG. 1.

Fig, 1 shows the first structural unit? consisting of the two cylinders 1, 2, which are identical to one another and which are connected to one another along their common surface line 3 are. At the front end, both cylinders taper and open into dispensing openings 4, which are not symmetrically closed are arranged in their respective cylinder, but which are offset to the common surface line 3 towards. The surface line So 3 is the line of symmetry.

A common plate is provided at the other end of the cylinder.

Figures 2-4 show the second component, namely the two associated pistons 6, 7 · They basically exist of rods 8, which are designed as cross profiles or the like for stiffening. See also 3 and 4. In addition, reinforcements 9 running in the transverse direction can be provided.

At the front ends of the rods 8 these rubber profiles 10 are pushed onto the cylinders 1 or 2 are introduced.

The two rods 8 are connected to one another in one piece by a common actuating plate 11.

Approximately in the middle between the two rods 8, a plate 12 is easily detachably connected to this component via webs. On one side of this plate 12, closure caps 13 are provided which fit onto the tips 4. the Plate 12 with closure caps 13 can easily be broken out and is then placed on top 4, which has been opened for the first time with the aid of scissors or another suitable tool are.

Claims (8)

Protection claims 1. Dispenser for dental impression materials, consisting of from a storage container for an impression compound and a further storage container for a hardener, characterized in that both storage containers are designed as syringes, the cylinders (1, 2) of which bear against one another on a common lateral surface (3) and which are connected to one another in one piece are, the pistons (8, 10, 11) of both syringes also connected to one another in one piece and together are actuatable. 2. Dispensing device according to claim 1, characterized in that the dispensing openings (4) of both syringes for common The surface line (3) are offset. 3. Dispensing device according to claim 1 or 2, characterized in that that the actuating ends of both pistons (8) through a common actuating plate (11) which extends transversely to the Axes of both syringes extends, are interconnected. 4. Dispensing device according to one of claims 1-3, characterized in that that a common plate (5) for both cylinders (1, 2) is provided, which at their openings transversely to their Axes extends. · A · r for β * ■ r · c · 5. Dispensing device according to one of claims 1-4, characterized in that that both cylinders (1, 2) with discharge openings (4) on the one hand and both pistons with actuating ends, on the other hand, are each integrally molded from synthetic resin. 6. Dispensing device according to one of claims 1 ·· 5, I characterized by § that a closure part (13) for both dispensing openings (4) % easily detachable between the actuating ends (8) of the pistons J (1O) is provided, I. 7. Dispensing device according to one of claims 1-6, I characterized by i that the discharge ends (4) of the cylinders (1, 2) are closed I am. \ 8. A dispenser according to any of claims 1-7, * characterized, Ί that the syringes are identical to each other. The patent attorney: S. Schubert