Novel long-arm positive shaft spring for adjusting inclination of canine shaft

By designing a new type of long-arm positive axis spring, and utilizing the obtuse angle connection of the connecting arm, the force-applying arm, and the sliding arm, as well as the elastic force storage part, the problem of the inability of existing positive axis springs to flexibly control the force is solved, and precise adjustment of canine axis inclination and comfortable orthodontic treatment are achieved.

CN224251513UActive Publication Date: 2026-05-19AFFILIATED STOMATOLOGICAL HOSPITAL OF NANCHANG UNIV (JIANGXI PROVINCIAL STOMATOLOGICAL HOSPITAL)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
AFFILIATED STOMATOLOGICAL HOSPITAL OF NANCHANG UNIV (JIANGXI PROVINCIAL STOMATOLOGICAL HOSPITAL)
Filing Date
2025-05-22
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

The existing positive axis spring design cannot flexibly control the force, which makes clinical operation inconvenient and requires the steel wire to be bent again to increase the force, affecting the efficiency of orthodontic treatment.

Method used

A novel long-arm positive shaft spring for adjusting the inclination of a canine shaft is designed, comprising a connecting arm, a force-applying arm, a sliding arm, and an elastic storage part. It is formed by bending stainless steel wire, with the force-applying arm and the sliding arm connected at an obtuse angle. The elastic storage part is used to adjust the magnitude and direction of the applied force, and it is used in conjunction with a self-locking bracket.

Benefits of technology

It achieves precise control over the canine axis inclination, the force applied by the appliance is controllable, it is comfortable, the orthodontic materials are readily available, it is easy to manufacture, and it is suitable for orthodontic treatment of a variety of patients.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel long-arm positive-axis spring for adjusting canine axis inclination, and relates to the technical field of orthodontics, the novel long-arm positive-axis spring comprises a connecting arm, a force application arm, a sliding arm and an elastic force storage part, the two ends of the connecting arm are connected with the force application arm and the sliding arm through the elastic force storage part respectively, and the elastic force storage part is connected with the connecting arm. And a hook is arranged at one end, far away from the elastic force storage part, of the sliding arm. According to the orthodontic appliance, canine teeth can be controlled to incline in the required direction, the force application size and direction of the orthodontic appliance are controllable, the teeth can be efficiently aligned while comfort is considered, the orthodontic materials are easy to obtain, manufacturing is easy and convenient, and the orthodontic appliance can be widely applied and popularized.
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Description

Technical Field

[0001] This application relates to the field of orthodontic technology, specifically to a novel long-arm positive axis spring for adjusting the canine axis inclination. Background Technology

[0002] During orthodontic treatment, some patients initially have distally tilted canines. This can easily lead to problems such as increased overbite, mesial tilt of posterior teeth, and open bite in the premolar segment during alignment and leveling, especially in cases requiring tooth extraction. Therefore, axial springs are commonly used clinically to correct the tilt of the canines.

[0003] The existing positive axis spring design cannot flexibly control the magnitude of the force during clinical operation. Therefore, only thinner steel wires can be used in clinical practice to apply a smaller force. This results in a long positive axis cycle and the need to be bent again when applying force. Utility Model Content

[0004] The main objective of this application is to provide a novel long-arm positive shaft spring for adjusting the inclination of the canine shaft, which aims to solve the above-mentioned technical problems.

[0005] The technical solution adopted in this application is as follows:

[0006] A novel long-arm positive shaft spring for adjusting the inclination of a canine shaft includes a connecting arm, a force-applying arm, a sliding arm, and an elastic storage part. The two ends of the connecting arm are connected to the force-applying arm and the sliding arm respectively through the elastic storage part. A hook is provided at the end of the sliding arm away from the elastic storage part.

[0007] Optionally, the force-applying arm and the sliding arm are connected to the connecting arm at an obtuse angle.

[0008] Optionally, the elastic energy storage part is a bent spiral structure.

[0009] Optionally, the long-arm positive shaft spring is formed by bending stainless steel wire.

[0010] Optionally, the stainless steel wire has a diameter of 0.016 inches.

[0011] Compared with the prior art, the beneficial effects of this application are:

[0012] This application proposes a novel long-arm positive axis spring for adjusting the canine axis inclination, which can control the canine to tilt in the desired direction. The force and direction of the orthodontic appliance are controllable, ensuring both comfort and efficient orthodontic alignment. The orthodontic material is readily available, easy to manufacture, and can be widely promoted and used. Attached Figure Description

[0013] Figure 1A schematic diagram of the structure of the novel long-arm positive axis spring for adjusting the inclination of the canine shaft provided in the embodiments of this application, viewed from one angle;

[0014] Figure 2 A schematic diagram of the use of the novel long-arm positive axis spring for adjusting the inclination of canines provided in this application embodiment in the oral cavity.

[0015] Explanation of the labels in the attached drawings:

[0016] 1-Force application arm, 2-Connecting arm, 3-Sliding arm, 4-Elastic energy storage part, 5-Hook, 6-Self-locking bracket, 7-Main bow wire. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0018] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0019] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0020] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0021] See attached document Figure 1 This application provides a novel long-arm positive shaft spring for adjusting the inclination of a canine shaft, including a connecting arm 2, a force-applying arm 1, a sliding arm 3, and an elastic storage part 4. The force-applying arm 1 and the sliding arm 3 are located at both ends of the connecting arm 2, and the force-applying arm 1 and the sliding arm 3 are each connected to the connecting arm 2 through an elastic storage part 4. The axis of the force-applying arm 1 and the axis of the sliding arm 3 are both at an obtuse angle to the axis of the connecting arm 2. A hook 5 is provided at the end of the sliding arm 3 away from the elastic storage part 4.

[0022] In this embodiment, the entire long arm positive axis spring is formed by bending a stainless steel wire with a diameter of 0.016 inches, and the elastic storage part 4 is formed by bending a stainless steel wire into a spiral structure, with one spaced on each side at both ends of the connecting arm 2.

[0023] like Figure 2 As shown in the embodiment of this application, a novel long-arm positive axis spring for adjusting canine axial inclination is provided. It is suitable for patients whose canines require adjustment of mesiodistal axial inclination during orthodontic treatment and whose intraorally bonded canine self-ligating brackets have built-in vertical tube devices. In use, the force-applying arm 1 is inserted into the vertical tube of the self-ligating bracket 6. The end of the force-applying arm 1 is fixed to the vertical tube with fluid resin to prevent it from slipping out. The inclination direction of the force-applying arm 1 corresponds to the inclination direction of the positive axis of the canine crown. Simultaneously, the connecting arm 2 extends distally across a tooth and hooks onto the main archwire 7 of the self-ligating bracket 6 via a hook 5 on the sliding arm 3. The position of the hook 5 is adjusted by the bending angle of the force-applying arm 1 and the movement of the sliding arm 3 along the mesiodistal axis on the main archwire 7. This causes different deformations in the elastic storage part 4 to adjust the magnitude of the applied force. The hook 5 is fixed to the main archwire 7 using fluid resin. Utilizing the elasticity of the wire, force is applied to the tooth to tilt it, thereby adjusting the canine axial inclination. It should be noted that the self-ligating bracket 6 is a commonly used orthodontic appliance, and its structure will not be described in detail here.

[0024] As can be seen, the novel long-arm positive axis spring for adjusting the canine axis inclination provided in this application embodiment effectively solves the shortcomings of traditional positive axis springs that cannot flexibly control the magnitude of force. Moreover, the magnitude and direction of the applied force of this positive axis spring are controllable, which can make teeth efficiently aligned while taking into account comfort. The orthodontic materials are easy to obtain, the manufacturing process is simple, and it can be widely promoted and used.

[0025] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A new type of long arm straight axle spring with adjusted canine axis inclination, characterized in that, The connecting arm, the force applying arm, the sliding arm and the elastic force storage part are included, two ends of the connecting arm are connected with the force applying arm and the sliding arm through the elastic force storage part respectively, and the sliding arm is provided with a hook at an end away from the elastic force storage part.

2. The new type of long arm straight axle spring that adjusts the inclination of canine tooth shaft according to claim 1, characterized in that, The force applying arm and the sliding arm are connected with the connecting arm at an obtuse angle.

3. The new type of long arm straight axle spring that adjusts the inclination of canine tooth shaft according to claim 1, characterized in that, The elastic force storage part is a bent spiral structure.

4. The new type of long arm straight axle spring that adjusts the inclination of canine tooth shaft according to claim 1, characterized in that, The long arm straight shaft spring is formed by bending a stainless steel wire.

5. The new type of long arm straight axle spring that adjusts the inclination of the canine tooth shaft according to claim 4, characterized in that, The diameter of the stainless steel wire is 0.016 inch.