WO2021057753A1

WO2021057753A1 - Bracket with traction hook capable of being hidden

Info

Publication number: WO2021057753A1
Application number: PCT/CN2020/116966
Authority: WO
Inventors: 张钦辉; 徐梓恩
Original assignee: 广州欧欧医疗科技有限责任公司
Priority date: 2019-09-25
Filing date: 2020-09-23
Publication date: 2021-04-01
Also published as: CN110584809A

Abstract

Provided is a bracket with a traction hook (3) capable of being hidden. A bracket body (2) is provided with a traction hook (3) capable of being rotated relative thereto, an accommodating space (21) is provided in the bracket body (2), and when the traction hook (3) is not being used, the traction hook (3) is positioned in the accommodating space (21); and when the traction hook (3) is being used, one end of the traction hook (3) is rotated outwards to leave the accommodating space (21). A traditional fixed traction hook arranged on a bracket is replaced with the rotatable traction hook (3), when the traction hook (3) is not required to be used, the traction hook is hidden in the accommodating space (21) so that irritation caused by the traction hook (3) to the oral mucosa of a patient can be greatly reduced, and discomfort of the patient can be relieved; and when the traction hook (3) is required to be used, the traction hook can be taken out from the accommodating space (21) by rotating in such a way that the use of the traction hook (3) is not influenced.

Description

Bracket with concealable traction hook

Technical field

The invention relates to the technical field of orthodontic appliances, in particular to a bracket.

Background technique

Orthodontic brackets are the main components of orthodontic orthodontics to improve the patient’s occlusion. In traditional orthodontics, the brackets are first fixed on the patient’s teeth and the arch wires are joined to the arch wires of each bracket. In the groove or the arch wire hole, the arch wire exerts a corrective force that forces the tooth to move to the correct position. Sometimes, in order to move the teeth, adjust the occlusal relationship, close the gap, etc., it is necessary to apply force to the teeth to do intra-jaw or inter-jaw traction, by setting traction hooks on the brackets and brackets, and hanging rubber bands or tension springs on the traction hooks, etc. To apply force to the teeth, so some brackets need to be provided with traction hooks.

Usually the traction hook is not used throughout the entire orthodontic cycle, but only used in the early or middle and late stages of orthodontics. However, the traction hooks set on the current brackets on the market are all fixed traction hooks. The current brackets are not The towing hook cannot be removed when using the towing hook.

Our company filed a patent application with the application number 201510046931.X on January 29, 2015, which discloses that a locking traction hole is provided on the main part of the bracket, and one end of the traction locking hole forms a locking hole in the main groove , And set the traction component in the locking traction hole. Although the traction component in this earlier application is movable, the outer end of the traction component is still exposed outside the main part of the bracket, which will still irritate the oral mucosa and cause discomfort to the patient. Moreover, the technical solution described in the application is to solve the problem of the arch wire sliding in the groove of the bracket. In order to solve this technical problem, one end of the locking traction hole in the application must be connected to the main groove (ie the claims Description in 1: The other end of the locking traction hole forms a locking hole in the main groove of the main body part) The traction component is the locking bolt, the outer wall of which has threads, and the locking bolt is connected to the holder through the threads. The main part of the groove is connected, the locking bolt is screwed inward into the locking traction hole, and the tip of the pin can enter the main groove of the bracket through the locking hole, and contact with the archwire in the groove when it is working, and squeeze The frictional force can prevent the arch wire from sliding in the bracket and achieve the effect of stopping. The technical problem solved by this application is completely different from this application, and the technical solution is completely different from this application.

Due to its functional requirements, the structure of the traction hook stimulates the oral mucosa, which is easy to give patients a strong foreign body sensation. In addition, the traction hooks on the market all contain a sharp angle structure, which brings discomfort to the patient. In order to reduce the patient's foreign body sensation, providing a bracket that can be hidden when the traction hook is not in use can greatly reduce the discomfort caused to the patient during the use of the bracket. The purpose of this application is to provide a bracket that can hide the towing hook.

Summary of the invention

In view of the above technical problems, the present invention provides a bracket with a concealable towing hook.

The technical solution adopted by the present invention to solve the technical problem is:

A bracket includes a connected bottom plate and a bracket body, the bracket body is provided with a towing hook that can rotate relative to the bracket body, and the bracket body is provided with an accommodating space, when the towing hook is not used , The traction hook is placed in the accommodating space; when the traction hook is used, one end of the traction hook rotates outward to leave the accommodating space.

In some preferred embodiments, the bracket body includes a limiting member, and the limiting member is used to limit the rotation angle of the towing hook.

In some further preferred embodiments, the limiting member includes an elastic limiting member.

In some preferred embodiments, two limiting protrusions are formed on the side of the traction hook. When the traction hook is not used, the elastic limiting member abuts against the side wall of the first limiting protrusion to block The traction hook rotates, when the traction hook is used, force is applied to rotate the traction hook, the first limiting protrusion squeezes the elastic limiting member to cause deformation, and then the first limiting The protrusion passes over the elastic limiting member, and when the traction hook rotates to the use position, the elastic limiting member abuts against the side wall of the second limiting protrusion to block the traction hook from continuing to rotate.

In a further preferred embodiment, when the towing hook is rotated to the use position, the two sides of the elastic limiting member respectively abut against the sides of the first limiting protrusion and the second limiting protrusion wall.

In other preferred embodiments, the bracket body includes a limiting member and an elastic limiting member, the elastic limiting member is provided in the accommodating space, and the side surface of the towing hook forms a third limiting member. When the traction hook is not used, the elastic limit member abuts against the side wall of the third limit projection to block the rotation of the traction hook. When the traction hook is used, force is applied to rotate the The traction hook, the third limiting protrusion squeezes the elastic limiting member to cause deformation, and then the third limiting protrusion crosses the elastic limiting member, when the traction hook rotates to the use position At this time, the limiting member abuts against the hook, blocking the traction hook from continuing to rotate.

In a further preferred embodiment, when the traction hook is rotated to the use position, both sides of the third limiting protrusion abut the elastic limiting member and the limiting member respectively.

In some preferred embodiments, when the towing hook is placed in the accommodating space, the outer surface of the towing hook matches the outer surface of the bracket body to form a smooth curved surface.

In a further preferred embodiment, the smooth curved surface is ellipsoid-like or spherical-like.

In some preferred embodiments, the outer surface of the traction hook is smooth and curved.

In some preferred embodiments, a rotating shaft is provided on the bracket body, and the traction hook is rotatably connected with the bracket body through the rotating shaft.

In a further preferred embodiment, the rotation axis is parallel or perpendicular to the bottom plate.

In some preferred embodiments, the end of the towing hook facing the outside of the bracket is hook-shaped or convex when in use, and the hook or convex can be used to hang a traction accessory.

In view of the problem that the traction hooks on the current brackets are all fixed traction hooks and contain acute-angle structures, which greatly stimulate the oral mucosa of the patient and cause the patient to feel a strong foreign body sensation, this application provides a bracket with a concealed traction hook. The bracket body is provided with a traction hook that can rotate relative to it, and the bracket body is provided with an accommodating space. When the traction hook is not used, the traction hook is placed in the accommodating space; When the towing hook is used, one end of the towing hook rotates outwards away from the accommodating space; compared with the prior art, it has the following positive effects: the present invention changes the fixed towing hook provided on the traditional bracket It is a rotatable traction hook. When the traction hook is not needed, it can be hidden in the accommodating space, which can greatly reduce the irritation of the traction hook to the patient’s oral mucosa and reduce the patient’s discomfort. When the traction hook is needed, it can be rotated by turning It can be taken out from the accommodating space without affecting the use of the towing hook.

The present invention will be further described below in conjunction with the drawings and embodiments.

Description of the drawings

Fig. 1 is a three-dimensional structural view of the towing hook of the bracket in embodiment 1 in a hidden state.

Fig. 2 is the internal structure diagram of the bracket in the hidden state of the towing hook of the embodiment 1.

Fig. 3 is a three-dimensional structural view of the bracket in embodiment 1 in the use state of the traction hook.

Fig. 4 is a diagram of the internal structure of the bracket in the first embodiment when the traction hook is in use.

Figure 5 is a three-dimensional structural view of the bracket in the first embodiment with the cover open.

Fig. 6 is a three-dimensional structural view of the towing hook of the bracket in the second embodiment in a hidden state.

Fig. 7 is an internal structure diagram of the bracket in the hidden state of the towing hook in the second embodiment.

Fig. 8 is a three-dimensional structural view of the bracket in the second embodiment when the traction hook is used.

Fig. 9 is a diagram of the internal structure of the bracket in the second embodiment when the traction hook is in use.

Fig. 10 is a three-dimensional structural view of the towing hook of the bracket in the third embodiment in a hidden state.

11 is a diagram of the internal structure of the bracket in the third embodiment when the towing hook of the bracket is hidden.

Fig. 12 is a three-dimensional structural view of the bracket in the third embodiment when the traction hook is in use.

Fig. 13 is an internal structure diagram of the bracket in the third embodiment when the traction hook is in use.

Fig. 14 is a three-dimensional structural view of the bracket in the third embodiment with the cover open.

detailed description

Example 1:

Referring to Figure 1, Figure 1 is a three-dimensional structural view of the bracket in the hidden state of the pulling hook of the bracket in the first embodiment. This embodiment provides a bracket, which includes a connected bottom plate 1 and a bracket body 2, and the bottom plate 1 is used for For sticking and fixing on the tooth surface of the tooth to be moved, the bottom plate 1 and the bracket body 2 are fixedly connected. The bracket body 2 is provided with a through groove 20 through which the archwire passes. The cross section of the through groove 20 can be any shape. In this embodiment, the through groove 20 is a square groove. The through slot 20 is provided with a cover 4, and the bracket body 2 is provided with a card slot. The cover 4 can move along the card slot to open and close the through slot 20. The bracket body 2 is provided with a traction hook 3 that can rotate relative to it. In order to more conveniently show the structure of the bracket, Figure 2 shows the internal state of the bracket when the traction hook is not used. The trough body 2 is in a transparent state. It can be seen from FIG. 2 that the bracket body 2 is provided with an accommodating space 21. When the traction hook 3 is not used, the traction hook 3 is placed in the accommodating space. Space 21. The shape of the accommodating space 21 may be arbitrary. In this embodiment, the shape of the accommodating space 21 matches the shape of the towing hook 3. The accommodating space 21 and the through groove 20 may be in communication with each other or not. In this embodiment, the accommodating space 21 and the through groove 20 are not in communication. When the traction hook 3 is placed in the accommodating space 21, the outer surface of the traction hook 3 matches the outer surface of the bracket body 2 to form a smooth curved surface. In this embodiment, the traction hook The outer surface of 3 matches the outer surface of the bracket body 2 to form a smooth curved surface similar to a cube. At present, the brackets on the market are all square, and the side has a sharp structure, and the fixed traction hook also has a sharp structure, which will cause the patient to have a strong sense of foreign body, and the feeling of use is not good. In this embodiment, the traction hook can be hidden, and The outer surface of the bracket forms a smooth curved surface, which can significantly improve the patient's experience of use.

Referring to Figures 3-4, Figure 3 is a three-dimensional structural diagram of the bracket in the embodiment 1 in the use of the traction hook, and Figure 4 is an internal structural diagram of the bracket in the embodiment 1 in the use of the traction hook, the bracket The body 2 further includes a limiting member 24 for limiting the rotation angle of the traction hook 3. The limiting member 24 is fixedly connected to the bracket body 2. In this embodiment, the limiting member 24 and the bracket body 2 are integrally formed. When the towing hook 3 is rotated to the use position, the limiting member 24 abuts against the towing hook 3 to block the further rotation of the towing hook 3, and the limiting member 24 limits the maximum of the towing hook 3 Rotation angle.

The bracket body 2 further includes an elastic limiting member 22 arranged in the accommodating space 21, and the elastic limiting member 22 is in contact with the side surface of the towing hook 3. The shape of the elastic limiting member 22 may be arbitrary. Preferably, the surface of the elastic limiting member 22 in contact with the traction hook 3 is a smooth curved surface. In this embodiment, the elastic limiting member 22 is a cylindrical rod member, and the bracket body 2 is provided with holes for inserting both ends of the elastic limiting member 22. The two ends are respectively inserted into the two holes, and the elastic limiting member 22 can rotate axially. The bracket body 2 is provided with a rotating shaft 23, and the traction hook 3 is rotatably connected with the bracket body 2 through the rotating shaft 23.

The side surface of the traction hook 3 is provided with a third limiting protrusion 34. When the traction hook is not used, the elastic limiting member 22 abuts against the side wall of the third limiting protrusion 34 to block the traction hook 3 Rotate, the elastic limit member 22 and the third limit protrusion 34 fix the traction hook 3 in a hidden position, and cannot automatically rotate out. When the traction hook 3 is used, force is applied to rotate the traction hook 3, the third limiting protrusion 34 squeezes the elastic limiting member 22 to cause deformation, and then the third limiting protrusion 34 Beyond the elastic limiting member 22, one end of the towing hook 3 leaves the accommodating space 21.

It is necessary to turn the traction hook 3 back to the hidden position, just apply force to rotate the traction hook 3 inward, the third limiting protrusion 34 squeezes the elastic limiting member 22 to deform it, and then The third limiting protrusion 34 can pass over the elastic limiting member 22, and the traction hook 3 returns to the hidden position.

The end of the towing hook 3 facing the outside of the bracket body 2 is a free end 32. The towing hook 3 forms a recess 33 near the free end 32, and the recess 33 makes the free end 32 is convex and can be used to hang rubber bands or pull rings. The outer surface of the free end 32 has a smooth transition and does not contain sharp corners, which can greatly reduce the irritation of the traction hook 3 to the oral mucosa of the patient, and it is not easy to catch food.

Traction hooks are used to hang rubber bands or tension springs for intra-jaw or inter-jaw traction. Usually, the traction hooks are not used throughout the entire orthodontic cycle, but only in the early or middle and late stages of orthodontics, but currently on the market The towing hooks set on the brackets are all fixed towing hooks, and the towing hooks cannot be removed when the towing hooks are not used. The brackets in this embodiment change the fixed traction hooks of the conventional brackets into movable traction hooks, and hide the traction hooks 3 inside the bracket body 2 when the traction hooks 3 are not needed. Inside the accommodating space 21, the towing hook 3 can be pulled out of the accommodating space 21 when it needs to be used, which can avoid discomfort to the patient when the towing hook 3 is not in use.

The traction hooks of all brackets on the market are hooks formed by bending a cylindrical body. On the one hand, it contains a sharp angle structure, which is easy to stimulate the oral mucosa of the patient and cause strong foreign body sensation and discomfort. On the other hand, it is in the eating process of the patient. It is easy to catch food and cause inconvenience for patients to eat. The end of the towing hook 3 facing the outside of the bracket body 2 is a free end 32 when in use, and the free end 32 is convex. The convex outer surface has a smooth transition without sharp corners, which can greatly reduce The traction hook 3 stimulates the oral mucosa of the patient and is not easy to catch food.

5, FIG. 5 is a three-dimensional structural view of the bracket in the first embodiment with the cover plate opened. The cover body 4 can move relative to the bracket body 2, and the bracket body 2 is provided with A card slot, the cover 4 can move along the card slot to open and close the through slot 20.

Example 2:

6-9, this embodiment provides a bracket with concealable towing hooks. Figure 6 is a three-dimensional structural view of the brackets in the concealed state of the towing hooks in the second embodiment, and Figure 7 is the brackets in the second embodiment The internal structure diagram of the traction hook in the hidden state. Figure 8 is the three-dimensional structure diagram of the bracket in the embodiment 2 when the traction hook is in use. Figure 9 is the internal structure diagram of the bracket in the embodiment 2 in the traction hook state. , In order to better show the structure, in Figure 7 and Figure 9, the bracket body is a transparent structure, the bracket structure in embodiment 2 is basically the same as the bracket in embodiment 1, the difference is that the specific performance is a limiting structure different.

The bracket body 2 is provided with an elastic limit member 22 in the accommodating space 21. The elastic limit member 22 is used to limit the rotation angle of the traction hook 3, and the elastic limit member 22 is The side of the traction hook 3 touches. The shape of the elastic limiting member 22 may be arbitrary. Preferably, the surface of the elastic limiting member 22 in contact with the traction hook 3 is a smooth curved surface. In this embodiment, the elastic limiting member 22 is a cylindrical rod member, and the elastic limiting member 22 is fixedly connected to the bracket body 2.

Two limiting protrusions are formed on the side of the traction hook 3, which are a first limiting protrusion 30 and a second limiting protrusion 31, respectively. When the traction hook is not used, the elastic limit member 22 abuts against the side wall of the first limit protrusion 30 to block the movement of the traction hook 3, and the first limit protrusion 30 can The traction hook 3 is fixed in a hidden position to prevent the traction hook 3 from falling out automatically.

When the traction hook 3 is used, force is applied to rotate the traction hook 3, the first limiting protrusion 30 squeezes the elastic limiting member 22 to deform it, and then the first limiting protrusion 30 Beyond the elastic limiting member 22, one end of the towing hook 3 leaves the accommodating space 21.

8-9, when the traction hook 3 moves to the use position, the elastic limit member 22 abuts against the side wall of the second limit protrusion 31 to block the traction hook 3 from continuing to rotate, so The second limiting protrusion 31 controls the maximum rotation angle of the traction hook 3. In order to better fix the traction hook 3 in the use position, when the traction hook 3 is rotated to the use position, both sides of the elastic limit member 22 abut against the first limit protrusion 30 and The side walls of the second limiting protrusion 31, that is, the first limiting protrusion 30 and the second limiting protrusion 31 clamp the elastic limiting member 22, and can hold the traction hook 3 No rotation occurs in the use position.

Example 3:

10-14, FIG. 10 is a three-dimensional structural view of the towing hook of the bracket in embodiment 3 in a hidden state, and FIG. 11 is an internal structure diagram of the towing hook of the bracket in embodiment 3 in a hidden state, and FIG. 12 is an implementation The three-dimensional structure diagram of the bracket in the use state of the traction hook in Example 3, Figure 13 is the internal structure diagram of the bracket in the use state of the traction hook in Example 3, and Figure 14 is the open state of the bracket in the embodiment 3 The following three-dimensional structure diagram, in order to better show the structure, in Figure 11 and Figure 13, the bracket body is a transparent structure, the bracket structure of embodiment 2 is basically the same as that of embodiment 1, the difference is that The shape of the outer surface of the bracket body 2 is different. When the towing hook 3 is placed in the accommodating space 21, the outer surface of the towing hook 3 matches the outer surface of the bracket body 2 to form a smooth curved surface In this embodiment, the outer surface of the traction hook 3 matches the outer surface of the bracket body 2 to form a spherical shape, and the outer surface of the traction hook 3 is smooth and curved. When the traction hook 3 is in use, the end facing the outside of the bracket body 2 is in a hook shape, and the hook shape can be used to hang traction accessories such as compression springs and rubber bands.

The present invention is not limited to the above-mentioned embodiments. If various changes or modifications to the present invention do not depart from the spirit and scope of the present invention, and if these changes and modifications fall within the scope of the claims of the present invention and equivalent technical scope, the present invention will also It is intended to include these changes and modifications.

Claims

A bracket includes a connected bottom plate and a bracket body, and is characterized in that: the bracket body is provided with a towing hook that can rotate relative to it, and the bracket body is provided with an accommodating space. When the towing hook is used, the towing hook is placed in the accommodating space; when the towing hook is used, one end of the towing hook rotates outward to leave the accommodating space.
The bracket according to claim 1, wherein the bracket body includes a limiting member, and the limiting member is used to limit the rotation angle of the towing hook.
3. The bracket of claim 2, wherein the limiting member comprises an elastic limiting member.
The bracket of claim 3, wherein the side surface of the towing hook is formed with two limiting protrusions, when the towing hook is not used, the elastic limiting member abuts against the first limiting protrusion The raised side wall blocks the rotation of the traction hook. When the traction hook is used, force is applied to rotate the traction hook, and the first limiting protrusion squeezes the elastic limiting member to deform it, and then The first limiting protrusion crosses the elastic limiting member, and when the traction hook is rotated to the use position, the elastic limiting member abuts against the side wall of the second limiting protrusion to block the traction hook Keep turning.
The bracket according to claim 4, wherein when the towing hook is rotated to the use position, both sides of the elastic limit member abut against the first limit protrusion and the second The side wall of the limit protrusion.
The bracket according to claim 3, wherein the bracket body includes a limiting member and an elastic limiting member, the elastic limiting member is provided in the accommodating space, and the side surface of the towing hook A third limiting protrusion is formed. When the towing hook is not used, the elastic limiting member abuts against the side wall of the third limiting protrusion to block the rotation of the towing hook. When the towing hook is used, When force is applied to rotate the traction hook, the third limiting protrusion squeezes the elastic limiting member to cause deformation, and then the third limiting protrusion crosses the elastic limiting member, and when the traction When the hook rotates to the use position, the limiting member abuts against the hook, blocking the traction hook from continuing to rotate.
The bracket according to claim 6, wherein when the towing hook is rotated to the use position, two sides of the third limiting protrusion respectively abut the elastic limiting member and the limiting Pieces.
The bracket according to any one of claims 1-7, wherein when the towing hook is placed in the accommodating space, the outer surface of the towing hook matches the outer surface of the bracket body Form a smooth curved surface.
8. The bracket according to claim 8, wherein the smooth curved surface is ellipsoid-like or spherical-like.
7. The bracket according to any one of claims 1-7, wherein the outer surface of the traction hook is a smooth curved surface.
7. The bracket according to any one of claims 1-7, wherein a rotating shaft is provided on the bracket body, and the traction hook is rotatably connected with the bracket body through the rotating shaft.
The bracket according to any one of claims 1-7, wherein the end of the towing hook facing the outside of the bracket is hook-shaped or convex when in use, and the hook-shaped or convex can be used For hanging traction accessories.