JP3067787U - Orthodontic wire lock device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lock device which can easily and surely fix an orthodontic wire to a tube fixed to a supporting tooth, and which has strength enough to withstand repeated use. SOLUTION: A pair of tubes 16, 17 of a tube body 14 are provided.
In the orthodontic apparatus in which the two leg pieces 11 and 12 of the orthodontic wire 10 are fitted respectively to fix the wires, the two tubes 16 and 17 are placed on the upper surface of the base plate 15 at predetermined intervals. A spring piece 20 is provided in the lower part of the inside of one tube 16, and a locking groove 13 is provided in the lower part on the front side of one leg 11 of the correcting wire 10. At the time of fitting, the spring piece 20 is engaged with the locking groove 13 so that the correction wire 10 can be fixed to the tube body 14.

Description

[Detailed description of the invention]

[0001]

[Industrial technical field]

 The present invention relates to an orthodontic device, and more particularly to a locking device for fixing an orthodontic wire such as an arch wire or a paratal bar to a tube fixed to a supporting tooth.

[0002]

[Prior art]

 Conventionally, when performing orthodontics using an orthodontic wire, particularly an arch wire, as shown in FIG. 7, a cylindrical tube is attached to the surface of a band 4 fitted to a molar as a supporting tooth. The arch wire is fixed by adhering a tube body 1 having the upper and lower parts 3 and 3 welded to the upper surface of the base plate 2 and inserting the two leg pieces of the arch wire 5 into the tubes 3 and 3 respectively.

In order to prevent the leg pieces of the archwire 5 from coming out of the tube 3 during use, as shown in Japanese Utility Model Laid-Open No. 4-92657 and Japanese Utility Model Publication No. 16-5516, both legs of the archwire 5 are used. A substantially rectangular-shaped elastic restraining line is provided between the pieces, and the front end of the elastic restraining line is locked to the lower end surface of the tube 3.

[0004]

[Problems to be solved by the invention]

 However, the above-mentioned conventional locking device has a drawback that it is not possible to smoothly lock and release the orthodontic wire due to its configuration, and the elastic restraining line and the tube are welded to each other to weld the arch wire and the base plate. However, there are drawbacks, such as being removed after repeated use because they are attached to each.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a locking device that can easily and surely fix an orthodontic wire to a tube main body and has strength enough to withstand repeated use.

[0006]

[Means for Solving the Problems]

 In the present invention, in order to achieve the above object, two leg pieces of the orthodontic wire are fitted into a pair of tubes of the tube body fixed to the supporting teeth, and the wire is fixed. In the orthodontic apparatus, the two tubes are integrally arranged on the upper surface of the base plate at a predetermined interval, and a spring piece is provided on the lower part inside one of the tubes, and one leg piece of the orthodontic wire is provided. A locking groove is provided in a lower portion on the front side, so that the spring piece is engaged with the locking groove at the time of fitting and insertion, so that the correcting wire can be fixed to the tube body.

[0007] Furthermore, a lateral locking hole is provided at a lower portion of one side of the one tube of the tube body, and a stopper pin is additionally provided near one leg of the correction wire so as to fit. In some cases, the tip of the stopper pin at the time of insertion is engaged with the locking hole so that the correction wire can be fixed to the tube body.

[0008]

[Embodiment of the invention]

Embodiment 1 Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. 1 to 3, reference numeral 10 denotes an archwire, in which square pillar-shaped legs 11, 12 are arranged side by side at a predetermined interval in a direction perpendicular to the archwire. A locking groove 13 is provided on the side.

Reference numeral 14 denotes a tube body in which tubes 16 and 17 are integrally arranged on the front surface of the base plate 15 at the same interval as the leg pieces 11 and 17, and inside the tubes 16 and 17. Each has a vertically oriented rectangular through hole 18 formed therein. Further, a cutout 19 in the lateral direction is formed in the lower part on the front side of one of the tubes 16. Reference numeral 20 denotes a spring piece, which has a base 21 and a pressing portion 22 connected to each other via an upright portion 23, and a locking projection 24 is provided on the back side of the pressing portion 22. Thus, the base 21 is fixed to the front surface of the base plate 15 and the pressing portion 22 is disposed so as to be located in the cutout hole 19.

In the present embodiment, when the two leg pieces 11 and 12 of the arch wire 10 are fitted and inserted into the tubes 16 and 17, respectively, the locking projections 24 of the spring pieces 20 fit into the locking grooves 13 of the leg pieces 11. Therefore, the arch wire 10 is securely locked to the tube body 14. When the tip of the pressing portion 22 is lifted up against the elasticity of the pin portion at the time of removal, the locking projection 24 is detached from the locking groove 13, so that the archwire 10 can be easily removed from the tube body 14. Can be extracted.

[0011]

Embodiment 2 In this embodiment, as shown in FIGS. 4 to 6, a flat stopper pin provided with an engaging claw 31 at the tip end is provided near one leg 11 of the archwire 10. 30 is provided at right angles to the archwire 10.

In addition, the tube body 14 is formed such that one of the tubes 32 has a larger diameter than the other tube 33 so that the leg piece 11 and the stopper pin 30 can be fitted at the same time. At the lower side, a lateral locking hole 34 reaching the through hole 18 is provided.

In this embodiment, when the legs 11, 12 of the archwire 10 are respectively inserted into the tubes 32, 33, the stopper pins 30 are also fitted together, and the engaging claws 31 are provided. Is locked in the locking hole 34 of the tube 16, so that the archwire 10 is securely locked to the tube body 14. When the distal end of the engaging claw 31 is pushed inward against the elasticity with a pin at the time of removal, the engaging claw 31 is disengaged from the locking hole 34, so that the archwire 10 is removed from the tube body 14. It can be easily removed.

In each of the above embodiments, an example in which an arch wire is used as an orthodontic wire has been described. However, the present lock device is also used when another orthodontic wire such as a paratal bar is used. Can be.

[0015]

[Effect of the Invention] In the present invention, since the above configuration is adopted, the orthodontic wire can be securely locked to the tube body and can be easily released. Therefore, the operation of orthodontics can be performed smoothly. In addition, it has sufficient strength to withstand repeated use.

[Submission date] October 8, 1999 (1999.10.8)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0015

[Correction method] Change

[Correction contents]

[0015]

Effects of the invention]

 According to the present invention, since the orthodontic wire is configured as described above, the orthodontic wire can be securely locked to the tube body and can be easily released. Therefore, the operation of orthodontics can be performed smoothly. In addition, it has sufficient strength to withstand repeated use.

[Brief description of the drawings]

FIG. 1 is a perspective view in a first embodiment.

FIG. 2 is a plan view of the connection state.

FIG. 3 is a sectional view taken along line AA in FIG. 2;

FIG. 4 is a perspective view in a second embodiment.

FIG. 5 is a plan view of the connection state.

6 is a sectional view taken along line BB in FIG.

FIG. 7 is a plan view showing a general use mode.

[Explanation of symbols]

 10 Arch wire 11 Leg piece 12 Leg piece 13 Lock groove 14 Tube body 15 Base plate 16 Tube 17 Tube 18 Through hole 19 Notch hole 20 Spring piece 22 Pressing part 30 Stopper pin 31 Engagement claw 32 Tube 33 Tube 34 Lock hole

Claims (2)

[Utility model registration claims] 1. An orthodontic apparatus in which two leg pieces of an orthodontic wire are fitted into a pair of tubes of a tube body fixed to supporting teeth, respectively, and the wires are fixed. The two tubes are integrally arranged at a predetermined interval on the upper surface of the base plate, and a spring piece is provided at the lower part on the inside of one of the tubes. Wherein the spring piece is engaged with the locking groove at the time of fitting and insertion so that the orthodontic wire can be fixed to the tube body. 2. An orthodontic apparatus in which two leg pieces of an orthodontic wire are inserted into a pair of tubes of a tube body fixed to a supporting tooth, respectively, and the wires are fixed. Tubes are integrally arranged at predetermined intervals on the upper surface of the base plate, and a horizontal locking hole is provided at a lower portion of one side of one of the tubes, and a stopper is provided near one leg of the correction wire. A pin is attached, and at the time of insertion, the tip of the stopper pin is engaged with the locking hole,
An orthodontic wire lock device characterized in that an orthodontic wire can be fixed to a tube body.