JPH0321221Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a dental treatment instrument, and particularly to an instrument for filling a root canal with gutta percha points.

[Prior Art] Conventionally used gutta percha point filling devices were manufactured by surgeons in the clinic using the plastic handles of interdental brushes. That is, the tip of the plastic handle is heated and softened using a device such as a barberner, and processed to fit the head of the hemp needle.
The head of the hemp needle was then fixed to the processed handle and the needle was connected.

[Problems that the invention aims to solve] The conventional instruments mentioned above can be easily manufactured by the surgeon himself in the clinic, and all the instruments used are manufactured by reusing used instruments. It is economically very good. However, in the conventional device described above, the head of the hemp needle fixed to the handle is fixed. Therefore, depending on the treatment area, a fixed angle is often inconvenient. Therefore, the present invention provides a filling device whose angle can be changed arbitrarily.

[Means for solving the problem] The needles are planted in a disc-shaped rotating body in the radial direction, and the rotating body is placed in a groove provided in the head member, and the needles are placed in a direction perpendicular to the groove. The rotary body is rotatably supported on the head member by the pin inserted through the head member. A connecting portion is provided at the tip of the grip held by the operator, and a connecting portion that engages with this connecting portion is provided on the head member. When the head member is connected and fixed to the grip, the end surface of the connecting portion of the grip presses and fixes the rotating body, thereby restricting the rotation of the rotating body.

[Example] Hereinafter, the gutta percha point filling device of the present invention will be described with reference to the drawings of one example.

Fig. 1 is a side view of a gutta percha point filling device according to an embodiment of the present invention, Fig. 2 is an enlarged top view of the filling device head, and Fig. 3 is an enlarged vertical sectional view of the filling device head. be.

A disc-shaped rotating body 1 has needles 2 set up in the radial direction of the rotating body 1. The head member 3 has a groove 4 having a width slightly wider than the thickness of the rotating body 1. The rotary body 1 is arranged in the groove 4, and the pin 5 is inserted into the groove 4 from the vertical direction, so that the rotary body 1 is rotatably supported on the head member 3. Section 9 is constituted. Further, the head member 3 is provided with an internal thread at its rear end.

The grip 7 has a diameter and length suitable for being held by an operator, and is provided with a protruding threaded portion 8 at its tip. When the grip 7 is attached to the head member 3 and the grip 7 is screwed in, the tip of the threaded part 8 presses against the outer circumferential surface of the rotating body 1, restricting and fixing the rotation of the rotating body 1, and also locking the rotating body 1 and the head. The member 3 and the grip 7 are integrally fixed.

[Effect of the invention] In the filling device described above, when the grip 7 is loosened, the pressure of the threaded portion 8 on the rotating body 1 is released, and the rotating body 1 becomes freely rotatable. Therefore, adjust the needle 2 to an angle suitable for the treatment area, and use the grip 7.
If it is closed, the rotating body 1 is fixed. That is, the angle formed between the needle 2 and the longitudinal direction of the grip 7 can be arbitrarily changed to suit the treatment area.

As is clear from the above description, the filling device of the present invention completely solves the problems of conventional filling devices.

There are many different types of root canals, including thick root canals, thin root canals, long root canals, and short root canals. Therefore, in the present invention, a plurality of needles with different thicknesses and lengths are prepared, these needles are planted on the rotating body 1, a plurality of types of heads 9 are prepared, and the heads 9 are replaced. , it is possible to adapt it to root canals with a wide variety of shapes.

[Brief explanation of drawings]

FIG. 1 is a side view of a gutta percha point filler according to an embodiment of the present invention. FIG. 2 is an enlarged top view of the head of FIG. 1. FIG. 3 is an enlarged longitudinal sectional view of the head of FIG. 1. 1... Rotating body, 2... Needle, 3... Head member, 4
...Groove, 5...Pin, 6...Finger rest, 7...Grip, 8...Screw part, 9...Head.

Claims (1)

[Claims for Utility Model Registration] 1. A disc-shaped rotating body, the rotating body has needles planted in the radial direction of the rotating body, and the head member has a needle at the tip that is slightly thicker than the rotating body. It has a wide groove, a rotating body is placed in the groove, the rotating body is rotatably supported by the head member by a pin inserted vertically into the groove, and the grip is suitable for being held by the operator. It has a diameter and a length, and has a connecting portion connecting the head member at its tip, and when the head member is connected to the grip, the tip surface of the connecting portion presses the rotating body and rotates. A gutta percha point filling device characterized by integrally fixing a body, a head member, and a grip. 2. The gutta percha point filling device according to claim 1, wherein a recessed finger rest is formed in the upper part of the head member. 3. The gutta percha point filling device according to claim 2 of the utility model registration, characterized in that the needle set on the rotating body has a plurality of diameters. 4. The gutta percha point filling device according to claim 3, wherein the needles set on the rotating body have a plurality of lengths.