JPH0411696Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention is a polymerizable material consisting of two pastes, a paste containing a polymerization initiator and a paste containing a polymerization accelerator. The present invention relates to a container for containing a supplied dental composite resin filling material.

(Conventional technology) Dental composite resin filling materials contain polymerizable monomers,
It is a paste-like mixture of a powdered filler and a curing agent system, and the curing agent system is usually a redox type consisting of a polymerization initiator (organic peroxide) and a polymerization accelerator (amine). There is. Therefore, from the viewpoint of storage stability, such a composite resin filling material is composed of two pastes: paste A consisting of a polymerizable monomer, filler, and organic peroxide, and paste B consisting of a polymerizable monomer, filler, and amine. It is supplied to dentists in sets. Dentists then precisely measure and knead each paste before use. Conventionally, such composite resin filling materials have been supplied by loading pastes A and B into two syringes each having tapered tips as shown in FIG. 5 to facilitate the collection of the pastes. There is. In FIG. 5, the dentist shows a protrusion 2 provided at the base of the syringe body 1 that is held by the second and third fingers, and a push rod 3 that is shaped to be easy to push with the palm or the first finger. The end portion 4 is operated to extrude the filler material through the small hole 5, and a predetermined amount is taken out onto the kneading plate. In this case, the amount of filler to be collected is determined by measuring the length of the extruded pasty filler;
If the sampling ratio of the pastes is the same, the area of the small hole 5 is the same, and if the sampling ratio of the two pastes is different, the area of the small hole 5 of each syringe is made in the same ratio as the sampling ratio, and the two pastes are made equally. By taking long samples, accurate measurements can be made.

(Problem that the invention attempts to solve) The dental composite filling material supplied with a syringe is
As described above, the two-component paste can be accurately sampled by dispensing it onto a kneading plate of equal length, but extruding the paste to equal length is itself a very difficult operation. This is because the filling material extruded from the syringe may curve or bulge depending on the movement and speed of the hand when extruding the paste. In order to avoid this, if you use a single syringe with two parallel cylinder parts as shown in Figure 6, the movement and speed of the hand when extruding each component will be exactly the same, and each component will be extruded at exactly the same speed. The paste can be taken in equal lengths. However, the syringe shown in FIG. 6 is not easy to manufacture, and each paste of the filling material is manufactured separately and loaded into the syringe.
In order to load the upper paste, which is inconvenient in terms of storage of the filling material, a dedicated loading machine with poor versatility is required. Therefore, the problem to be solved by the present invention is to obtain a container that is filled with only one of the two pastes and that can be used by combining with a container filled with the other of the two pastes when in use. That's true.

(Means for solving the problem) This problem can be solved by the following invention. That is, the present invention is a container for containing either one of two pastes, a paste containing a polymerization initiator and a paste containing a polymerization accelerator, and one end of the container is used to store the paste. An opening is provided for insertion of an extrusion rod for extrusion, and a small hole is made at the other end for extruding the material into a long and thin shape. The part is fitted into an uneven part formed on the outer surface of the container containing the other material, so that the two pastes are simultaneously extruded in parallel during use, thereby fixing the two containers. This is a container made of a polymerizable material, characterized in that it is formed into a container made of a polymerizable material.

In the above container, it is preferable that the uneven portions formed on the outer surface include at least one concave portion and one convex portion at symmetrical positions with respect to a plane passing through the center points of both openings of the container.

Hereinafter, the present invention will be explained in more detail with reference to the drawings.

Although FIG. 1 shows one embodiment of the present invention, the present invention is not limited to this figure. A paste of a polymerizable material such as a dental composite resin filling material is loaded into the container, and this paste is extruded through a small hole provided at the tip of the cylinder. The side surface of the syringe-shaped container is provided with a concave portion and a convex portion at positions symmetrical to a plane A passing through the center point of both openings of the syringe-shaped container. The concave portion is shaped like a negative shape of the convex portion so that the concave portion and the convex portion can be fitted into each other.
Further, it is preferable that each of the concave portion and the convex portion be provided with a taper or an undercut so that the concave portion and the convex portion can be securely fixed. The shapes of the recesses and projections may be linear as shown in the embodiment or dotted. The distance between both ends of each of the concave and convex portions is preferably 1/10 or more of the syringe length in order to stabilize the attachment of the syringe-shaped container. Further, as shown in the embodiment of FIG. 1, the recessed portion and the convex portion are provided with a flat surface on the side surface of the syringe-shaped container, and if they are provided on this flat surface, the mounted state of the container can be maintained stably. I can do it.

FIG. 2 shows an embodiment in which a container of the present invention and a corresponding container are integrated, and in order to extrude the paste from such an integrated container,
A two-pronged push rod as shown in Figure 3 is used. In this case, it is preferable to provide the syringe base with a protrusion as shown by reference numeral 2 in FIG.
Also, if both pastes are difficult to flow,
When the hardness of each paste is extremely different, it is one of the preferred embodiments to use a dispenser as shown in Fig. 4, which can easily push out the pushing rod to the same length. It is one.

(Effects of the invention) Because the container of the invention has the above-described structure, after one paste is loaded into the container as before, there is no need for special connectors, and two containers can be connected during use. Can be integrated.

This allows both pastes to be sampled at the same time in equal lengths at close positions.

[Brief explanation of the drawing]

FIG. 1 is a perspective view schematically showing the container of the present invention, FIG. 2 is a perspective view showing an integrated form of the container of the present invention and a corresponding container, and FIG. 3 is a perspective view of the container of the present invention. FIG. 4 is a cross-sectional view showing a push rod used to push out the paste from the container of the present invention, and FIG. 4 is a cross-sectional view showing a dispenser used to push out the paste from the container of the present invention. FIG. 5 is a sectional view of a conventional container, and FIG.
The figure is a sectional view showing a container in which two syringe-shaped containers are combined.

Claims (1)

[Scope of utility model registration request] A container for containing either one of two pastes, a paste containing a polymerization initiator and a paste containing a polymerization accelerator, and one end of the container has an extrusion rod for pushing out the paste. It is opened for insertion, and a small hole is made at the other end for extruding the material into a long and thin shape, and an uneven part is formed on the outer surface of the container. The other material is fitted into an uneven part formed on the outer surface of the container in which the other material is stored, so that both containers are fixed so that the two containers are simultaneously extruded in parallel. A container of polymerizable material characterized by: