KR200490478Y1

KR200490478Y1 - Ligature wire for orthodontic

Info

Publication number: KR200490478Y1
Application number: KR2020150006068U
Authority: KR
Inventors: 미츠히로 마츠시마; 유타카 오가사와라
Original assignee: 토미 가부시키가이샤
Priority date: 2015-09-11
Filing date: 2015-09-11
Publication date: 2019-11-18
Also published as: KR20170001040U

Abstract

It provides a ligature line having a hook portion having a constant rigidity without being easily broken.
<Solution>
It is possible to hook the retractor 30, which is made of one strand of wire folded and the twisted portion 1 of the wire is twisted by the orthodontic ligation line 1 attached to the orthodontic appliance 50. Hook portion 2; A mounting portion 3 into which the orthodontic appliance 50 can be inserted, constituted by a pair of wires extending from the hook portion 2; And a fastening portion 4 which can be fixed to the orthodontic appliance 50 inserted into the mounting portion 3 by twisting, which is composed of a pair of wires extending from the mounting portion 3 to the opposite side to the hook portion 2. The orthodontic ligation line 1 provided is provided.

Description

Orthodontic Ligation Line {LIGATURE WIRE FOR ORTHODONTIC}

The present invention relates to an orthodontic ligating line used for orthodontics.

By patent document 1 etc., a ligation line is known. The ligation wire of patent document 1 is comprised by the ring-shaped wire. The hook portion is formed by attaching a ring-shaped wire to the orthodontic appliance and twisting the excess length portion. By hooking an elastic ring-shaped member called elastic on the hook portion, teeth can be pulled out and orthodontics can be promoted.

U.S. Patent 6,910,885

However, when using the ligation wire which consists of a ring-shaped wire, the rigidity of a hook part will become nonuniform according to the method of an operator's procedure. For example, if the force of twisting the wire is weak, a hook portion with small rigidity is formed. Moreover, the rigidity of a hook part will become nonuniform according to the magnitude | size of the orthodontic appliance to be attached. For example, attaching a ligation line to a small orthodontic device lengthens the extra length part of a ligation line. When the hook portion is formed using all of these long extra length portions, the long hook portion is formed, and the hook portion with small rigidity is formed.

Here, a ligation line called a Kobayashi Hook in which a hook part was formed previously is known. According to this Kobayashi hook, a hook portion having a constant strength can always be obtained regardless of the operator. However, since this Kobayashi hook forms a hook part by welding adjacent wires with each other, the weld part becomes brittle by heat influence.

For this reason, the welding part is easily broken when trying to bend the hook part excessively in order to hook the tow, such as an elastomer, or the welding part is easily broken when repeatedly bending it repeatedly to correct the traction direction during the procedure. There was a problem.

Moreover, this Kobayashi hook tightens and fixes the orthodontic device by twisting the extra length part of a pair of wire provided in the opposite side of a hook part. At this time, if the excess length of the wire is twisted with excessive force, there is also a problem that the welded part is broken.

It is an object of the present invention to provide a ligation line having a hook portion having a constant rigidity without being broken easily.

In order to achieve the above object, the present invention provides the following.

(1) In the orthodontic ligation line which consists of one strand of wire folded, and is attached to the orthodontic device,

Hook portion that can be hooked, the retracted portion of the wire is twisted;

A cradle portion into which the orthodontic appliance is inserted, comprising a pair of the wires extending from the hook portion; And

An orthodontic ligature line having a fastening portion capable of fixing an orthodontic appliance inserted into the mounting portion by being twisted by a pair of the wires extending from the mounting portion to the opposite side to the hook portion.

According to the orthodontic ligation line which concerns on this invention, since the hook part is formed previously, the hook part which has a fixed strength can be obtained regardless of an operator. Moreover, since the hook part is twisted and formed, even if a bending force acts on a hook part, it does not break easily.

(2) In the orthodontic ligation line, the wire may be resin coated.

It is easy to set the frictional force generated when the resins are in contact with each other to be larger than the frictional force generated when the wires are in contact. For this reason, the twist of a hook part and a fastening part does not loosen easily, it is easy to keep rigidity of a hook part high, and it is easy to maintain the fastening strength of a fastening part high.

1 is a view showing a state of use of the ligation line.
It is a figure which shows the ligature line for orthodontics concerning 1st Embodiment of this invention.
3 is a view illustrating a process of attaching the ligation line of FIG. 2 to an orthodontic appliance.
4 is a view illustrating a process of attaching the ligation line of FIG. 2 to an orthodontic appliance.
It is a figure which shows the ligature line for orthodontics concerning 2nd Embodiment of this invention.

First Embodiment

(Use state of ligation boat)

Hereinafter, the orthodontic ligation line (henceforth a ligation line) which concerns on embodiment of this invention is demonstrated with reference to drawings. 1 is a diagram illustrating a state of use of the ligated line 1.

As shown in FIG. 1, orthodontic treatment is performed by attaching the orthodontic appliance 50 to a plurality of teeth, and applying one strand of arch wire 40 to each orthodontic appliance 50. The elastic book power of the arch wire 40 acts on the orthodontic appliance 50, and the position or posture of the tooth is corrected by applying the orthodontic force in the direction in which the orthodontic appliance 50 is to correct the tooth.

In addition, by pulling the traction port 30 such as a rubber band to the hook portion 2 provided on the ligation line 1, the traction orthodontic device 50 is pulled in a desired direction by the elastic force of the traction port 30. Also, the orthodontic force may be corrected by applying a corrective force to the teeth.

The ligation line 1 which concerns on this embodiment is used in order to fix the arch wire 40 to each orthodontic appliance 50.

On the other hand, although the orthodontic appliance shown is a type which fixes the arch wire to the orthodontic appliance 50 only by the ligation line 1, this invention is not limited to this. For example, you may use for the orthodontic appliance provided with the cover or clip which presses an arch wire, and in this case, an arch wire is fixed by a cover, a clip, and a ligation line. The orthodontic appliance shown is an orthodontic bracket, but the present invention can also be used for fixing arch wires to orthodontic buccal tubes.

(Structure of ligation boat)

2 is a diagram illustrating a state (state of a product) before use of the ligation line 1 according to the present embodiment.

As shown in FIG. 2, the ligating line 1 is comprised from the wire with one strand edge part folded back in the middle. As the wire, for example, stainless steel or titanium alloy wire can be used. The ligating line 1 is provided with the hook part 2, the mounting part 3, and the fastening part 4. As shown in FIG.

The hook part 2 is comprised by twisting the bending part of a wire. As described with reference to FIG. 1, this hook portion 2 is a portion to which a hook 30 such as a rubber band can be hooked.

The mounting part 3 is a site | part which forms the space into which the orthodontic appliance 50 can be inserted. The mounting part 3 is comprised by the pair of wire extended from the hook part 2. The space | interval W1 of the pair of wire which comprises the mounting part 3 is set to the same magnitude | size as an orthodontic device.

The tightening part 4 is comprised by the pair of wire extended from the mounting part 3 to the opposite side to the hook part 2. By twisting the tightening part 4, the arch wire 40 can be fixed to the orthodontic appliance 50 inserted in the mounting part 3. In this embodiment, one end (right end in FIG. 2) of the fastening part 4 is an open end.

The space | interval W2 of the pair of wires which comprise the fastening part 4 is set larger than the space | interval W1 of the pair of wires which comprise the mounting part 3. The space | interval W2 of the tightening part 4 is set larger than the orthodontic appliance.

(Use of ligation boat)

3 and 4 show the state in which the ligation line 1 is attached to the orthodontic appliance 50. As shown in FIG. 3, when the orthodontic appliance 50 is inserted into the holder 3, the orthodontic appliance 50 is first inserted between the pair of wires of the tightening portion 4. At this time, when the ligation line 1 is slid to the right side of Fig. 3 so as to enter between the wires from the open end of the tightening part 4, the operation is simple. After inserting the orthodontic device 50 into the tightening part 4, the ligation line 1 is slid to the right in FIG. 3, and the orthodontic device 50 is guided to the mounting part 3.

As shown in FIG. 4, when the orthodontic appliance 50 is located in the mounting part 3, the tightening part 4 was twisted and the orthodontic appliance 50 was wired. In order to maintain sufficient tightening force, cut the wire leaving only the necessary length of the twisted portion. In this manner, when the ligation line 1 is fixed to the orthodontic appliance 50, the orthodontic appliance 50 is fixed to the arch wire 40.

In addition, when the hook part 2 is needed in a treatment, the hook part 2 is plastically deformed in the arrow direction of FIG. 4, for example, so that the traction opening 30 may be easily hooked. After plastically deforming the hook portion 2, the hook 30 as shown in FIG. 1 can be hooked to the hook portion 2.

On the other hand, in the said ligation wire 1, it is preferable that the wire is resin-coated. By coating with resin, it is easy to set the frictional force which generate | occur | produces when resins contact each other than the frictional force which arises when wires contact. For this reason, the twist of the hook part 2 and the fastening part 4 does not loosen easily, it is easy to maintain the rigidity of the hook part 2 high, and it is easy to maintain the fastening strength of the fastening part 4 high. For example, the ligation line 1 can be coated using PEEK resin, fluorine resin, polyester resin, silicone resin, urethane resin, acrylic resin, polyamide resin, epoxy resin and the like. Moreover, the aesthetics of the ligation line 1 can be improved by coating white resin.

(effect)

Unlike the present embodiment, in the case where the ligation line is twisted after the ligation line is attached to the orthodontic appliance, the hook portion is formed, the number of bits, the twist strength, and the like become uneven depending on the operator. Alternatively, if the orthodontic appliance to be attached is small, the extra length portion of the ligation line becomes long. Therefore, when the hook portion is formed using all of the extra length portions, the long hook portion is formed, and the hook portion with small rigidity is formed. However, since the hook portion 2 is formed in advance in the ligation line according to the present embodiment, a hook portion having a constant strength can be obtained regardless of the operator or the size of the orthodontic appliance 50 to be mounted. have.

In addition, unlike the present embodiment, when the hook portion is formed by welding as in the Kobayashi hook, the hook portion becomes brittle due to heat influence. However, according to the ligation line 1 which concerns on this embodiment, the hook part 2 is twisted and formed. That is, since the hook portion 2 is not brittle, even if a large bending force is applied to the hook portion 2 or the bending force is applied a plurality of times, it is not easily broken.

Second Embodiment

5 is a view showing the ligated line 11 according to the second embodiment of the present invention. In the first embodiment described above, an example in which one end of the tightening portion 4 is set as the open end has been described, but the present invention is not limited thereto. For example, as in the second embodiment shown in FIG. 5, one end of the tightening portion 14 may be twisted. According to the ligation line 11 which concerns on 2nd Embodiment, the twist part 15 is provided in the one end of the tightening part 14, and it is set as the shape which is easy to hold the ligation line 11 with a dental orthodontic pliers. .

Also in the ligation line 11 which concerns on this 2nd Embodiment, the space | interval W2 of the fastening part 14 is set wider than the space | interval W1 of the mounting part 13. For this reason, when attaching to the orthodontic appliance 50, the orthodontic appliance 50 is inserted into the tightening part 14, and the ligation line 11 is slid to the right side of FIG. 50 may be simply guided to the mounting portion (13).

After the orthodontic appliance 50 is positioned on the mounting portion 13, the tightening portion 14 is tightened to remove unnecessary portions including the twisting portion 15, and the arch wire is dentified by the ligation line 11. It is fixed to the calibration device 50.

Also in the ligation line 11 which concerns on this 2nd Embodiment, since the hook part 12 is formed previously, the hook part 12 which has a fixed strength can be obtained regardless of an operator.

In addition, according to the ligation line 11 which concerns on this embodiment, since the hook part 12 is twisted and formed, even if a large bending force is applied to the hook part 12 or a bending force is acted on multiple times, it does not break easily.

On the other hand, in the above-described first and second embodiments, an example in which a portion connecting the mounting portions 3 and 13 and the tightening portions 4 and 14 is formed in a gentle curve has been presented. It is not limited. The site | part which connects the holding | maintenance part 13 and the fastening part 14 may be comprised in the shape bent at right angles.

1: ligation boat
2: hook
3: cradle
4: fastener
11: ligation boat
12: hook part
13: hanger
14: Fasteners
15: kink
30: tow
40: arch wire
50: orthodontic device

Claims

In the orthodontic ligation line which consists of one strand of wire folded, and is attached to the orthodontic appliance,
The wire is resin coated,
A hook portion, in which the folded portion of the wire is pre-twisted, which can hook the tow port;
A cradle portion into which the orthodontic appliance is inserted, formed by a pair of the wires extending from the hook portion; And
An orthodontic ligature line having a fastening portion which is fixed to an orthodontic appliance inserted into the mounting portion by twisting, which is constituted by a pair of the wires extending from the mounting portion to the opposite side to the hook portion.

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