CN219538520U - A double-arm traction hook for orthodontics - Google Patents

Abstract

The utility model provides a double-arm traction hook for tooth correction, which comprises a base piece, a unidirectional traction hook piece A and a unidirectional traction hook piece B which are fixedly connected with each other; the unidirectional traction hook A and the unidirectional traction hook B are respectively formed by fixing a single traction hook and a unidirectional traction hook connector; the base piece comprises a connecting seat head and an adhesive pedestal used for being adhered to the adhesive surface of the tooth, and the base piece, the unidirectional traction hook piece A and the unidirectional traction hook piece B are fixedly connected with each other through the fixed connection between the connecting seat head and the unidirectional traction hook connector. The double-arm traction hook can be used for efficiently controlling root movement or controlling root movement of inclined teeth and simultaneously integrally moving, so that the purpose of efficiently correcting the teeth vertically inclined is achieved, and orthodontic treatment time is greatly shortened.

Description

A double-arm traction hook for orthodontics

technical field

The utility model relates to the technical field of orthodontic appliances in stomatology, in particular to a double-arm traction hook for tooth orthodontics.

Background technique

In the process of orthodontic treatment, especially in the process of closing the extraction gap in tooth extraction cases, the teeth on both sides of the gap often fall to the extraction gap. In addition, in traditional fixed orthodontics and invisible orthodontics, root-controlled movement and overall movement of teeth are types of movement that are clinically difficult to achieve.

In clinical operation, if the teeth on the side of the gap are tilted during the process of closing the extraction gap, in fixed orthodontics, various bends on the arch wire are usually used to control the root movement to vertically tilt the teeth. This method requires a long course of treatment, and the bending of the arch wire is complicated, and the patient needs to wait for a long time for the operation; in invisible orthodontics, the teeth are vertically straightened through the design of resin attachments or the combination of braces and elastic traction. This method also requires a long course of treatment, and requires high patient compliance, and a slight incompatibility of the braces will lead to treatment failure. To sum up, whether in fixed or invisible orthodontics, the existing technology for vertically moving inclined teeth has the disadvantages of low efficiency, insufficient performance, and high requirements for manual operation by doctors or patients.

In order to solve the above problems, it is necessary to design a force application device that applies forces in multiple directions, especially bidirectional, to the same action site. However, the current orthodontic instruments with such functions usually have defects such as overly complex structures and single angles, which are inconvenient for flexible clinical use.

Utility model content

In view of the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide a double-armed traction hook for orthodontics, which can be used to efficiently control the roots of inclined teeth or move them as a whole at the same time , to achieve the purpose of orthodontic treatment of highly efficient vertically inclined teeth, thereby greatly shortening the orthodontic treatment time.

In order to achieve the above object, the utility model is realized by adopting the technical solution consisting of the following technical measures.

A double-arm traction hook for orthodontics, comprising a base part fixedly connected to each other, a one-way traction hook part A, and a one-way traction hook part B;

The one-way traction hook A and the one-way traction hook B are respectively fixed by a single traction hook and a one-way traction hook connector;

The base part includes a connecting seat head and a bonding pedestal for bonding with the tooth bonding surface. Through the fixed connection between the connecting seat head and the connecting body of the one-way traction hook, the base part and the one-way traction hook part A , One-way traction hooks B are fixedly connected to each other;

The angle between the traction hook of the one-way traction hook part A and the traction hook of the one-way traction hook part B is 20-160°.

Herein, the one-way traction hook A and the single traction hook in the one-way traction hook B are conventionally used traction hooks in the technical field of stomatology and orthodontics, which are mainly composed of a hook body and a rod body. It should be pointed out that in this article, the traction hook, as one of the components, is a conventional medical device for the purpose of traction in the technical field. It can be the specific technical solution given in this article, or it can be referred to Other disclosed towing hooks or structures that serve the same purpose of towing.

In one of the technical solutions, the towing hook is mainly composed of a hook body and a rod body. Wherein, one end of the rod body is connected to the hook body, and the other end is connected to the connecting body of the one-way traction hook.

Further, the structure of the hook body can be a curved configuration with an end and an opening structure, such as a question mark hook; or a ring configuration without an end, such as a ring hook.

Further, the structure of the rod body may be a straight rod configuration or a non-straight rod configuration. However, it should be noted that when the rod body is in a non-straight rod configuration, it is necessary to ensure that the magnitude and direction of the force/applied force at both ends of the rod body are consistent with the straight rod configuration, so as to achieve the same technical effect.

Further, the size and material of the hook body and the rod body can refer to the conventionally used traction hooks in the field of stomatology orthodontics, and the following technical solutions can also be adopted:

In one of the preferred technical solutions, the hook body and the rod body are made of metal materials, including but not limited to stainless steel materials (it should be noted that stainless steel is generally used as the instrument material in the field of orthodontic appliance technology in stomatology at present, The specific stainless steel model can refer to the selection of instruments in the same field); the length of the rod body is 1-8mm, and the outer diameter of the hook body is not more than 6mm, so as to be suitable for being placed in the human oral cavity as much as possible.

In this paper, the base part includes a connecting seat head and a bonding base for bonding with the tooth bonding surface, wherein the bonding base is bonded with the tooth bonding surface so that the double tooth provided in the technology of the utility model is The arm traction hook is fixed in the oral cavity of a human body. Based on the above functional purposes, the bonding pedestal described in this paper can refer to other bonding pedestals disclosed in the art or a structure that plays the same role of bonding and fixing, and the following technical solutions can also be adopted:

In one of the technical solutions, the bonding pedestal is selected to include a cylindrical shape or a polygonal shape, preferably a cylindrical shape.

In one of the preferred technical solutions, in order to enhance the bonding effect, the bonding surface of the bonding pedestal is a non-smooth plane, for example, provided with grinding lines, so as to enhance the bonding effect of the adhesive.

In one preferred technical solution, the outer diameter of the bonding pedestal is 2-6 mm, and the thickness is 0.3-1.5 mm.

In this paper, the base part includes a connection base and a bonding base for bonding with the tooth bonding surface. Through the fixed connection between the connection base and the one-way traction hook connector, the base part, one-way The traction hook part A and the one-way traction hook part B are fixedly connected to each other, wherein the fixed connection between the connecting seat head and the one-way traction hook connecting body can be directly fixed between the connecting seat head and the one-way traction hook connecting body The way of connection, such as bonding or threaded connection; it can also be connected and fixed between the connecting seat head and the connecting body of the one-way tow hook through other fixing functional components, such as screws.

In one of the technical solutions, the connecting seat head and the connecting body of the one-way traction hook are in the shape of a circular cylinder with internal threads and have the same inner diameter, and the two are fixed in series by screws. Further preferably, the outer diameters of the connecting seat head and the connecting body of the one-way traction hook are consistent, and the two are fixed in series by screws to form a cylindrical shape.

In one of the technical solutions, the connecting seat head and the one-way traction hook connecting body are provided with ring-shaped protrusions at the fixed connection with each other to achieve the function of fitting and fixing, further improving the stability of the fixed connection, and preventing The one-way traction hook part A and the one-way traction hook part B rotate relatively in a fixed state. Further, abrasive grains can be provided on the annular protrusion to further prevent relative rotation from occurring.

In one preferred technical solution, the outer diameter of the connecting seat and the connecting body of the one-way traction hook is 0.5-3 mm, and the height is 1-6 mm, so as to be as suitable for placement in the human oral cavity as possible.

It is worth emphasizing that, in the above-mentioned technical solution of the utility model, in order to achieve the purpose of freely adjusting the two-way traction angle, it is selected and defined to distinguish the one-way traction hook A and the one-way traction hook B, that is, the one-way The included angle between the traction hook A and the one-way traction hook B can be adjusted by the user and can be used repeatedly.

The invention of the utility model is that, through the setting of the included angle between the two one-way traction hooks, it can be used to efficiently control the root movement of the inclined teeth or to control the roots and move as a whole at the same time, so as to realize the high-efficiency vertical movement of the inclined teeth. The purpose of orthodontic treatment, thereby greatly reducing the time of orthodontic treatment.

It should be noted that the angle between the hook of the one-way traction hook part A and the traction hook of the one-way traction hook part B is 20-160°, and the setting of the angle can be based on the vertical tooth sticking The angle of view in the joining surface direction may also be the actual angle between the draw hook of the one-way draw hook part A and the draw hook of the one-way draw hook part B. And the setting orientation of the towing hook is based on the common structure or shape of the towing hook known to those skilled in the art, and the setting orientation of the towing hook can be regarded as the overall orientation of the towing hook, such as a conventional towing hook including a rod body and a hook body , is to regard the direction of the rod body as the direction of the towing hook. When dealing with non-standard configurations of towing hooks, non-straight rod configurations and special-shaped hooks, it can be set with reference to the equivalent conventional towing hooks.

The utility model can apply two unidirectional traction forces in different directions on the traction hooks of the one-way traction hook part A and the one-way traction hook part B, so as to realize the overall movement of the drawn teeth towards the resultant force direction, or to Slanted teeth for efficient root-controlled movement while moving as a whole.

In this paper, the bonding pedestal used for bonding with the tooth bonding surface, wherein the tooth bonding surface is commonly used as the clinical crown center point of the tooth, that is, the center point of the clinical crown long axis and the mesial-distal contact point of the tooth crown. intersection, The plane is overlying through the upper and lower first permanent molars Midpoint and upper and lower central incisor overbite/> midpoint connection. (Chen Yangxi, Orthodontics-Basic, Technical and Clinical, 2012, People's Health Publishing House)

In one of the technical solutions, the double-arm traction hook for orthodontics also includes a top cover, which is used to close the top end of the one-way traction hook connector, thereby reducing the discomfort of the human oral cavity, and at the same time The connecting seat head and the one-way traction hook connecting body are used together as the traction element winding column.

In one of the technical solutions, in order to maintain the traction hook of the one-way traction hook part A and the traction hook of the one-way traction hook part B of the double-arm traction hook for orthodontics, the included angle between the two remains unchanged , you can choose to set an angle retainer between the two, and the angle retainer can refer to the conventional structure in the prior art, such as an angle fixing buckle; you can also choose between the one-way traction hook A and the one-way traction The connection interface between the hook parts B is provided with grinding lines, and/or a bayonet structure is provided, and the grinding lines and bayonet structure can refer to conventional structures in the prior art.

Based on the above technical and principle explanations, it can be known that in the above technical solution, the angle relationship between the draw hook of one-way draw hook part A and the draw hook of one-way draw hook part B is one of the important invention points , but in the above-mentioned technical solutions, they are all based on the technical idea that it is convenient for the user to make corresponding adjustments according to the patient's condition during the entire treatment process, but correspondingly, due to the adjustability of the included angle relationship, the included angle relationship is vulnerable to external forces The risk of modification, which can be reduced by some structural improvements, also increases the overall device cost.

Therefore, the inventor proposes big data collation based on clinical sampling, and uses the most conventional angle relationship as a fixed angle relationship:

A double-arm traction hook for orthodontics, comprising a base part and a two-way traction hook part fixedly connected to each other;

The two-way traction hook is composed of a traction hook A, a traction hook B and a two-way traction hook connecting body fixed;

The base part includes a connection base and a bonding pedestal for bonding with the tooth bonding surface. Through the fixed connection between the connection base and the two-way traction hook connector, the base part and the two-way traction hook are fixedly connected to each other. ;

The included angles between the traction hook A and traction hook B are 29～31°, 39～41°, 44～46°, 49～51°, 59～61°, 69～71°, 79～ Any of 81°, 89-91°, 99-101°, 109-111°, 119-121°, 129-131°, 139-141°, 149-151° or 159-160°.

In one of the technical solutions, the base part and the two-way traction hook part can be prepared separately, or can be directly prepared through an integral molding process to form a whole assembled and constructed by the base part and the two-way traction hook part.

The technical solution of the utility model has the following beneficial effects:

(1) The double-arm traction hook for orthodontics provided by the utility model can be used to efficiently control the roots of inclined teeth or move them as a whole at the same time, so as to realize high-efficiency and high-efficiency for inclined teeth, especially severely inclined teeth. Effective orthodontic treatment can greatly shorten the time of orthodontic treatment.

(2) Based on the optimal technical solution provided by the utility model, those skilled in the art can set the angle between the two one-way traction hooks according to clinical judgment, so as to flexibly respond to different clinical situations.

Description of drawings

Fig. 1 is a schematic structural view of a double-arm traction hook for orthodontics provided by Embodiment 1 of the present utility model without a top cover.

Fig. 2 is a schematic structural diagram of a double-arm traction hook for orthodontics provided by Embodiment 1 of the present utility model.

Fig. 3 is an exploded schematic diagram of a double-arm traction hook for orthodontics provided by Embodiment 1 of the present utility model.

Fig. 4 is a schematic diagram of the bonding surface structure of the bonding pedestal in the double-armed traction hook for orthodontics provided by Embodiment 1 of the present utility model. As shown in the figure, the bonding surface is a non-smooth plane, which is provided with grinding lines to enhance the bonding effect of the adhesive.

Fig. 5 is a structural schematic diagram of a double-arm traction hook for orthodontics provided by Embodiment 1 of the present utility model, which does not include a top cover and is perpendicular to the direction of view of the bonding surface of the teeth.

Fig. 6 is a schematic diagram of a double-arm traction hook for orthodontics provided by Embodiment 1 of the present invention in use. In the figure, the direction indicated by the arrow is the direction of the traction force, and the traction is carried out according to the method shown in the figure, so as to achieve the purpose of class II traction between the jaws while tilting the teeth vertically. It should be noted that the shape of the pulled tooth in the figure is only for illustration.

Fig. 7 is a schematic diagram of a double-arm traction hook for orthodontics provided by Embodiment 1 of the present invention in use. In the figure, the direction indicated by the arrow is the direction of the traction force. Refer to the way shown in the figure for traction to achieve the purpose of vertically tilting the teeth while moving the teeth as a whole to close the interdental gap. It should be noted that the shape of the pulled tooth in the figure is only for illustration.

Fig. 8 is a schematic structural diagram of a double-arm traction hook for orthodontics provided by Embodiment 2 of the present invention.

Detailed ways

In order to further understand the utility model, the preferred embodiment of the utility model is described below in conjunction with the examples, but it should be understood that these descriptions are only to further illustrate the features and advantages of the utility model, rather than limiting the utility model claims. Those skilled in the art can refer to the content of this article to appropriately improve the process parameters to achieve. In particular, it should be pointed out that all similar substitutions and modifications are obvious to those skilled in the art, and they are all considered to be included in the present utility model. The method and application of the present utility model have been described through preferred embodiments, and the relevant personnel can obviously modify or appropriately change and combine the method and application described herein without departing from the content, spirit and scope of the present utility model to come Realize and apply the utility model technology. While it is believed that those of ordinary skill in the art are well aware of the following terms, the following definitions are set forth to help explain the subject matter disclosed in the present invention.

A double-arm traction hook for orthodontics, comprising a base part fixedly connected to each other, a one-way traction hook part A, and a one-way traction hook part B;

The one-way traction hook A and the one-way traction hook B are respectively fixed by a single traction hook and a one-way traction hook connector;

The base part includes a connecting seat head and a bonding pedestal for bonding with the tooth bonding surface. Through the fixed connection between the connecting seat head and the connecting body of the one-way traction hook, the base part and the one-way traction hook part A , One-way traction hooks B are fixedly connected to each other;

The angle between the traction hook of the one-way traction hook part A and the traction hook of the one-way traction hook part B is 20-160°.

Herein, the one-way traction hook A and the single traction hook in the one-way traction hook B are conventionally used traction hooks in the technical field of stomatology and orthodontics, which are mainly composed of a hook body and a rod body. It should be pointed out that in this article, the traction hook, as one of the components, is a conventional medical device for the purpose of traction in the technical field. It can be the specific technical solution given in this article, or it can be referred to Other disclosed towing hooks or structures that serve the same purpose of towing.

In one embodiment, the towing hook is mainly composed of a hook body and a rod body. Wherein, one end of the rod body is connected to the hook body, and the other end is connected to the connecting body of the one-way traction hook.

In one embodiment, the structure of the hook body may be a curved configuration with an end and an opening structure, such as a question mark hook; it may also be a ring configuration without an end, such as a ring hook.

In one embodiment, the structure of the rod body may be a straight rod configuration or a non-straight rod configuration. However, it should be noted that when the rod body is in a non-straight rod configuration, it is necessary to ensure that the magnitude and direction of the force/applied force at both ends of the rod body are consistent with the straight rod configuration, so as to achieve the same technical effect.

In one of the implementations, the size and material of the hook body and the rod body can refer to the conventionally used traction hooks in the field of stomatology orthodontics, and the following technical solutions can also be adopted:

In one of the preferred embodiments, the hook body and the rod body are made of metal materials, including but not limited to stainless steel materials (it should be noted that stainless steel is generally used as the instrument material in the field of orthodontic appliance technology in stomatology at present, The specific stainless steel model can refer to the selection of instruments in the same field); the length of the rod body is 1-8mm, such as 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, 6.5mm; The diameter is not greater than 6mm, such as 1mm, 2mm, 3mm, 4mm, 5mm, so as to be suitable for placement in the human oral cavity as much as possible.

In this paper, the base part includes a connecting seat head and a bonding base for bonding with the tooth bonding surface, wherein the bonding base is bonded with the tooth bonding surface so that the double tooth provided in the technology of the utility model is The arm traction hook is fixed in the oral cavity of a human body. Based on the above functional purpose, in one of the implementations, the adhesive pedestal described herein can refer to other disclosed adhesive pedestals in the art or structures that play the same role of bonding and fixing, and the following can also be used technical solution:

In one preferred embodiment, the bonding pedestal is selected to include a cylindrical shape or a polygonal shape, preferably a cylindrical shape.

In one preferred embodiment, in order to enhance the bonding effect, the bonding surface of the bonding pedestal is a non-smooth plane, for example, provided with abrasive lines, so as to enhance the bonding effect of the adhesive.

In one preferred embodiment, the outer diameter of the bonding pedestal is 2-6mm, such as 2.5mm, 3mm, 3.5mm, 4mm, 5mm, 5.5mm; the thickness is 0.3-1.5mm, such as 0.4mm, 0.5mm mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm.

In this paper, the base part includes a connection base and a bonding base for bonding with the tooth bonding surface. Through the fixed connection between the connection base and the one-way traction hook connector, the base part, one-way The traction hook part A and the one-way traction hook part B are fixedly connected to each other, wherein the fixed connection between the connecting seat head and the one-way traction hook connecting body can be directly fixed between the connecting seat head and the one-way traction hook connecting body The way of connection, such as bonding or threaded connection; it can also be connected and fixed between the connecting seat head and the connecting body of the one-way tow hook through other fixing functional components, such as screws.

In one preferred embodiment, the connecting seat head and the connecting body of the one-way traction hook are in the shape of a circular cylinder with internal threads and have the same inner diameter, and the two are fixed in series by screws. Further preferably, the outer diameters of the connecting seat head and the connecting body of the one-way traction hook are consistent, and the two are fixed in series by screws to form a cylindrical shape.

In one of the implementations, the connecting seat head and the one-way traction hook connecting body are provided with ring-shaped protrusions at the fixed connection with each other, so as to achieve the function of fitting and fixing, further improve the stability of the fixed connection, and prevent The one-way traction hook part A and the one-way traction hook part B rotate relatively in a fixed state. Further, abrasive grains can be provided on the annular protrusion to further prevent relative rotation from occurring.

In one preferred embodiment, the outer diameter of the connecting seat head and the one-way traction hook connecting body is 0.5-3mm, such as 0.6mm, 0.8mm, 1.0mm, 1.2mm, 1.4mm, 1.5mm, 1.6mm mm, 1.8mm, 2.0mm, 2.2mm, 2.5mm, 2.8mm; height is 1~6mm, such as 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, to be as suitable as possible placed in the human mouth.

It is worth emphasizing that, in the above-mentioned technical solution of the utility model, in order to achieve the purpose of freely adjusting the two-way traction angle, it is selected and defined to distinguish the one-way traction hook A and the one-way traction hook B, that is, the one-way The included angle between the traction hook A and the one-way traction hook B can be adjusted by the user and can be used repeatedly.

The invention of the utility model is that, through the setting of the included angle between the two one-way traction hooks, it can be used to efficiently control the root movement of the inclined teeth or to control the roots and move as a whole at the same time, so as to realize the high-efficiency vertical movement of the inclined teeth. The purpose of orthodontic treatment, thereby greatly reducing the time of orthodontic treatment.

It should be noted that the angle between the hook of the one-way traction hook part A and the traction hook of the one-way traction hook part B is 20-160°, and the setting of the angle can be based on the vertical tooth sticking The angle of view in the joining surface direction may also be the actual angle between the draw hook of the one-way draw hook part A and the draw hook of the one-way draw hook part B. And the setting orientation of the towing hook is based on the common structure or shape of the towing hook known to those skilled in the art, and the setting orientation of the towing hook can be regarded as the overall orientation of the towing hook, such as a conventional towing hook including a rod body and a hook body , is to regard the direction of the rod body as the direction of the towing hook. When dealing with non-standard configurations of towing hooks, non-straight rod configurations and special-shaped hooks, it can be set with reference to the equivalent conventional towing hooks.

The utility model can apply two unidirectional traction forces in different directions on the traction hooks of the one-way traction hook part A and the one-way traction hook part B, so as to realize the overall movement of the drawn teeth towards the resultant force direction, or to Slanted teeth for efficient root-controlled movement while moving as a whole.

In this paper, the bonding pedestal used for bonding with the tooth bonding surface, wherein the tooth bonding surface is commonly used as the clinical crown center point of the tooth, that is, the center point of the clinical crown long axis and the mesial-distal contact point of the tooth crown. intersection, The plane is overlying through the upper and lower first permanent molars Midpoint and upper and lower central incisor overbite/> midpoint connection. (Chen Yangxi, Orthodontics-Basic, Technical and Clinical, 2012, People's Health Publishing House)

In one of the implementations, the double-arm traction hook for orthodontics also includes a top cover, and the top cover is used to close the top end of the one-way traction hook connector, thereby reducing the discomfort of the human oral cavity, and at the same time The connecting seat head and the one-way traction hook connecting body are used together as the traction element winding column.

In one of the implementations, in order to maintain the traction hook of the one-way traction hook part A and the traction hook of the one-way traction hook part B of the double-arm traction hook for orthodontics, the included angle between the two remains unchanged , you can choose to set an angle retainer between the two, and the angle retainer can refer to the conventional structure in the prior art, such as an angle fixing buckle; you can also choose between the one-way traction hook A and the one-way traction The connection interface between the hook parts B is provided with grinding lines, and/or a bayonet structure is provided, and the grinding lines and bayonet structure can refer to conventional structures in the prior art.

Based on the above technical and principle explanations, it can be known that in the above technical solution, the angle relationship between the draw hook of one-way draw hook part A and the draw hook of one-way draw hook part B is one of the important invention points , but in the above-mentioned technical solutions, they are all based on the technical idea that it is convenient for the user to make corresponding adjustments according to the patient's condition during the entire treatment process, but correspondingly, due to the adjustability of the included angle relationship, the included angle relationship is vulnerable to external forces The risk of modification, which can be reduced by some structural improvements, also increases the overall device cost.

Therefore, the inventor proposes big data collation based on clinical sampling, and uses the most conventional angle relationship as a fixed angle relationship:

A double-arm traction hook for orthodontics, comprising a base part and a two-way traction hook part fixedly connected to each other;

The two-way traction hook is composed of a traction hook A, a traction hook B and a two-way traction hook connecting body fixed;

The base part includes a connection base and a bonding pedestal for bonding with the tooth bonding surface. Through the fixed connection between the connection base and the two-way traction hook connector, the base part and the two-way traction hook are fixedly connected to each other. ;

The included angles between the traction hook A and traction hook B are 29～31°, 39～41°, 44～46°, 49～51°, 59～61°, 69～71°, 79～ Any of 81°, 89-91°, 99-101°, 109-111°, 119-121°, 129-131°, 139-141°, 149-151° or 159-160°.

Hereinafter, the present application will be explained in further detail with reference to examples. However, those skilled in the art should understand that these examples are provided for illustrative purposes only, and are not intended to limit the present application.

Example 1

As shown in accompanying drawings 1 to 5, a double-arm traction hook for orthodontics in this embodiment includes a base part (1), a one-way traction hook part A (2), and a one-way traction hook part B ( 3);

The one-way traction hook A (2) and the one-way traction hook B (3) are respectively fixed by a single traction hook (7) and a one-way traction hook connector (6);

The base part (1) includes a connecting base (1-2) and a bonding pedestal (1-1) for bonding with the tooth bonding surface. Fixed connection to realize the fixed connection between the base part, one-way traction hook part A and one-way traction hook part B;

The angle between the traction hook (7) of the one-way traction hook part A (2) and the traction hook (7) of the one-way traction hook part B (3) can be freely within the range of 20-160°. Adjustment.

The towing hook (7) is mainly composed of a hook body and a rod body. Wherein, one end of the rod body is connected to the hook body, and the other end is connected to the one-way traction hook connecting body (6).

The structure of the hook body is a question mark hook, and the structure of the rod body is a straight rod configuration.

The hook body and the rod body are made of stainless steel; the length of the rod body is 4mm, and the outer diameter of the hook body is 3mm, so as to be suitable for being placed in the human oral cavity as much as possible.

The bonding pedestal (1-1) is cylindrical, with an outer diameter of 4 mm and a height of 0.5 mm.

The bonding surface of the bonding pedestal (1-1) is a non-smooth plane and is provided with grinding lines to enhance the bonding effect of the adhesive.

The connecting seat head (1-2) and the one-way traction hook connecting body (6) are in the shape of a circular cylinder with internal threads, and the inner and outer diameters are consistent, and the three are fixed in series by screws to form a cylindrical shape. The outer diameter of the connecting seat head (1-2) and the one-way traction hook connecting body (6) is 2.5mm, and the height is 1mm, so as to be suitable for being placed in the human oral cavity as far as possible.

The two-way traction hook for orthodontics also includes a top cover (4), and the top cover (4) is used to close the top of the connecting body of the one-way traction hook, thereby reducing the discomfort of the human oral cavity, and at the same time, the connecting seat The head and the one-way traction hook connecting body are used together as the traction element winding column.

Example 2

As shown in the accompanying drawing 8, the present embodiment is a kind of double-armed traction hook for orthodontics, comprising a base part (1) and a two-way traction hook part (5) fixedly connected to each other;

The two-way traction hook (5) is composed of a traction hook A (5-1), a traction hook B (5-2) and a two-way traction hook connecting body;

The base part includes a connection base and a bonding pedestal for bonding with the tooth bonding surface. Through the fixed connection between the connection base and the two-way traction hook connector, the base part and the two-way traction hook are fixedly connected to each other. ;

The included angle between the traction hook A (5-1) and the traction hook B (5-2) is 60°.

The towing hook A (5-1) and the towing hook B (5-2) are mainly composed of a hook body and a rod body. Wherein, one end of the rod body is connected to the hook body, and the other end is connected to the two-way traction hook connecting body.

The structure of the hook body is a question mark hook, and the structure of the rod body is a straight rod configuration.

The hook body and the rod body are made of stainless steel; the length of the rod body is 6mm, and the outer diameter of the hook body is 4mm, so as to be suitable for being placed in the human oral cavity as much as possible.

The bonding pedestal is in the shape of a cylinder with an outer diameter of 3 mm and a height of 1 mm.

The connecting seat head and the two-way traction hook connecting body are in the shape of a circular cylinder with internal threads, and the inner and outer diameters are consistent, and the two are fixed in series by screws to form a cylindrical shape. The outer diameter of the connecting seat and the connecting body of the two-way traction hook is 2mm, and the height is 1.5mm, so as to be suitable for being placed in the human oral cavity as far as possible.

The above-mentioned embodiment is a preferred implementation mode of the present utility model, but the implementation mode of the present utility model is not limited by the above-mentioned embodiment, and any other changes, modifications and substitutions made without departing from the spirit and principle of the present utility model , Combination and simplification should all be equivalent replacement methods, and all are included in the protection scope of the present utility model.

Claims (10)

1. The double-arm traction hook for tooth correction is characterized by comprising a base piece, a one-way traction hook piece A and a one-way traction hook piece B which are fixedly connected with each other;

the unidirectional traction hook A and the unidirectional traction hook B are respectively formed by fixing a single traction hook and a unidirectional traction hook connector;

the base piece comprises a connecting seat head and an adhesive pedestal used for being adhered to the adhesive surface of the tooth, and the base piece, the unidirectional traction hook piece A and the unidirectional traction hook piece B are fixedly connected with each other through the fixed connection between the connecting seat head and the unidirectional traction hook connector.

2. The dual arm clevis for dental appliances of claim 1, wherein: the traction hooks of the unidirectional traction hook piece A and the unidirectional traction hook piece B have an included angle of 20-160 degrees.

3. The dual arm clevis for dental appliances of claim 1, wherein: the traction hook mainly comprises a hook body and a rod body;

the structure of the hook body is a bending structure with a head and an opening structure or a ring-shaped structure without a head;

the structure of the rod body is in a straight rod configuration or a non-straight rod configuration.

4. The dual arm clevis as in claim 3, further comprising: the length of the rod body is 1-8 mm, and the outer diameter of the hook body is not more than 6mm.

5. The dual arm clevis for dental appliances of claim 1, wherein: the outer diameter of the bonding pedestal is 2-6 mm, and the thickness is 0.3-1.5 mm.

6. The dual arm clevis for dental appliances of claim 1, wherein: the connecting seat head and the unidirectional traction hook connector are in a circular cylinder shape with internal threads, and the internal diameters of the connecting seat head and the unidirectional traction hook connector are consistent; the outer diameters of the connecting seat head and the unidirectional traction hook connector are consistent, and the connecting seat head and the unidirectional traction hook connector are serially connected and fixed through screws to form a cylinder shape.

7. The dual arm clevis for dental appliances of claim 1 or 6, wherein: the outer diameter of the connecting seat head, the bidirectional traction hook connector and the unidirectional traction hook connector is 0.5-3 mm, and the height is 1-6 mm.

8. The dual arm clevis for dental appliances of claim 1, wherein: the device also comprises a top cover piece, wherein the top cover piece is used for closing the top end of the unidirectional traction hook connector.

9. A double-arm traction hook for tooth correction is characterized by comprising a base piece and a bidirectional traction hook piece which are fixedly connected with each other;

the bidirectional traction hook piece is formed by fixing a traction hook A, a traction hook B and a bidirectional traction hook connector;

the base piece comprises a connecting seat head and an adhesive pedestal used for being adhered to the adhesive surface of the tooth, and the base piece and the bidirectional traction hook piece are fixedly connected with each other through the fixed connection between the connecting seat head and the bidirectional traction hook connector.

10. The dual arm clevis for dental appliances of claim 9, wherein: the included angle between the traction hook A and the traction hook B is any one of 29-31 degrees, 39-41 degrees, 44-46 degrees, 49-51 degrees, 59-61 degrees, 69-71 degrees, 79-81 degrees, 89-91 degrees, 99-101 degrees, 109-111 degrees, 119-121 degrees, 129-131 degrees, 139-141 degrees, 149-151 degrees or 159-160 degrees.