Bone nail hook device for orthodontics

Abstract

The utility model discloses a bone nail hook device for orthodontics, which comprises a bone nail with self-tapping threads, a drill bit is arranged at the front end of the bone nail, and an extension fixing seat is arranged at the rear end of the bone nail; the extension fixing base comprises a cylindrical base body, the bottom of the base body is in non-rotation connection with the rear end of the bone nail, at least one hook extending outwards is arranged on the side face of the base body, a hook claw is arranged at the end, away from the base body, of the hook, and a hemispherical top is arranged at the top of the base body. The implanting flexibility of the bone nail is improved, and the operation difficulty is reduced; the hanging range of the correcting device is expanded through the extending design of the hook; and the mechanical design difficulty during correction is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to dental orthodontic auxiliary device technical field, specifically is a kind of for the bone screw hook device of tooth correction. BACKGROUND

[0002] During the tooth correction process, in order to correct the position of teeth, it is often necessary to use bone screws to provide stable fixing points for applying correction force. However, bone screws usually need to be placed in places with good bone conditions and do not affect tooth arrangement. After placing bone screws in certain positions, direct connection with correction devices may be affected. Therefore, it is necessary to design a bone screw hook device that can conveniently mount elastic devices for correction. SUMMARY

[0003] The utility model aims at avoiding the problem of poor position of bone screws for tooth correction after being punched into the oral cavity, which affects the connection of correction devices. The bone screw hook device for tooth correction allows bone screws to be implanted in positions that are more convenient to operate. The device also enables quick installation and adjustment of elastic devices such as rubber bands and continuous rubber chains for correction through hooks.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] A bone screw hook device for tooth correction includes a bone screw with self-tapping threads. The front end of the bone screw is a drill bit, and the rear end of the bone screw is provided with an extended fixing seat. The extended fixing seat includes a cylindrical seat body. The bottom of the seat body is not rotationally connected to the rear end of the bone screw. At least one hook extends outward from the side of the seat body. The end of the hook away from the seat body is provided with a hook claw. The top of the seat body is provided with a hemispherical top.

[0006] The bone screw of the present scheme has self-tapping threads. Multiple bone screws are usually used together and are suitable for implanting in hard tissues around teeth. The rear end of the bone screw is connected to the fixed extended fixing seat. The hooks on the extended fixing seat are used to stably mount elastic devices for correction, including rubber bands, continuous rubber chains, etc. The elastic devices are connected through the hooks on multiple bone screws and are tightly attached to teeth, which can achieve better correction effect. The hemispherical top is smooth and round, which can ensure that it does not scratch soft tissues in the oral cavity.

[0007] As a preferred scheme of the utility model, the side of the seat body is provided with two hooks extending outward. The extension directions of the two hooks are opposite, and the hook claw is in the form of a semicircular ring. The extended fixing seat with one hook is suitable for the edge, and the extended fixing seat with two hooks is suitable for the middle, which facilitates the series connection of elastic devices.

[0008] As the preferred scheme of the utility model, the seat body is equipped with the first through hole penetrating the seat body, the hook penetrates the first through hole and is fixed with the seat body. The first through hole of the scheme can be used for limiting when the hook penetrates, and the length of the hook can be determined according to the requirement.

[0009] As the preferred scheme of the utility model, the hook penetrates the seat body, the seat body is equipped with the second through hole penetrating the seat body and the hook, the axis of the second through hole is perpendicular to the extension direction of the hook, and the second through hole is equipped with the ligature for fixing the hook and the seat body. The second through hole of the scheme can be used for the ligature to penetrate and fixedly connect the seat body and the hook.

[0010] As the preferred scheme of the utility model, the seat body bottom surface is equipped with the square hole groove recessed inward, and the rear end of the bone nail is a square column and is tightly arranged in the square hole groove. The bone nail and the extension fixing seat of the scheme are non-rotating connection, and the connecting structure with the shapes of square hole groove, triangular hole groove, pentagonal hole groove, hexagonal hole groove and oval hole groove can be adopted.

[0011] As the preferred scheme of the utility model, the extension fixing seat is made of metal material. The hook of the scheme has good elasticity and durability, and the shape of the hook is optimized and designed, so that the elastic device for correction can be stably hung.

[0012] The beneficial effect of the scheme is that the implant flexibility of the bone nail is improved, the operation difficulty is reduced, the range of the correction device is expanded through the hook extension design, and the design difficulty of mechanics during correction is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a three-dimensional structure schematic view of the utility model.

[0014] Fig. 2 It is a side surface structure schematic view of the extension fixing seat of the utility model.

[0015] Fig. 3 It is a bottom surface structure schematic view of the extension fixing seat of the utility model.

[0016] In the drawing: 1, bone nail 2, extension fixing seat 3, seat body

[0017] 4, hook 5, hook claw 6, semispherical top

[0018] 7, first through hole 8, second through hole 9, square hole groove. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0020] Reference Figs. 1-3 ,

[0021] A bone nail hook device for tooth correction, comprising a bone nail 1 with self-tapping thread, the front end of the bone nail 1 is a drill bit, and the rear end of the bone nail 1 is provided with an extension fixing seat 2; the extension fixing seat 2 comprises a cylindrical seat body 3, the bottom of the seat body 3 is not rotationally connected with the rear end of the bone nail 1, at least one outwardly extending hook 4 is arranged on the side surface of the seat body 3, a hook claw 5 is arranged at the end of the hook 4 away from the seat body 3, and a hemispherical top 6 is arranged on the top of the seat body 3.

[0022] Two outwardly extending hooks 4 are arranged on the side surface of the seat body 3, the extending directions of the two hooks 4 are opposite, and the hook claw 5 is in the form of a semicircular ring.

[0023] The seat body 3 is provided with a first through hole 7 penetrating through the seat body 3, and the hook 4 penetrates through the first through hole 7 and is fixed with the seat body 3.

[0024] The hook 4 penetrates through the seat body 3, the seat body 3 is provided with a second through hole 8 penetrating through the seat body 3 and the hook 4, the axis of the second through hole 8 is perpendicular to the extending direction of the hook 4, and a ligation line (not shown in the figure) for fixing the hook 4 and the seat body 3 is arranged in the second through hole 8.

[0025] A square hole groove 9 is arranged on the bottom surface of the seat body 3 and is recessed inwardly, and the rear end of the bone nail 1 is in the form of a square column and is tightly arranged in the square hole groove 9.

[0026] The extension fixing seat 2 is made of metal material.

[0027] Specific use process:

[0028] The bone nail 1 of the scheme has self-tapping thread, and a plurality of bone nails 1 and extension fixing seats 2 are usually used together, are suitable for being implanted into appropriate hard tissues around teeth, the rear end of the bone nail 1 is connected and fixed with the extension fixing seat 2, the extension fixing seat 2 is fixedly connected with the hook 4 penetrating through the seat body 3 by means of ligation line, and the hook 4 on the extension fixing seat 2 is used for stably mounting a spring device for correction, including rubber band, continuous rubber chain and the like, the spring device is hooked on the plurality of bone nails 1 and the extension fixing seat 2, is tightly attached to the teeth, and a better correction effect can be obtained.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A bone pin hook device for orthodontic use, characterized by: The invention relates to a bone nail with self-tapping thread, the front end of the bone nail is a drill bit, and the rear end of the bone nail is provided with an extended fixing base; The extended fixing base comprises a cylindrical base body, the bottom of the base body is not rotationally connected with the rear end of the bone nail, the side of the base body is provided with at least one outwardly extending hook, the end of the hook away from the base body is provided with a hook claw, and the top of the base body is provided with a hemispherical top.

2. A bone peg hook device for orthodontic use according to claim 1, characterized in that: The side of the base body is provided with two outwardly extending hooks, the extending directions of the two hooks are opposite, and the hook claw is in the shape of a semicircular ring.

3. A bone peg hook device for orthodontic use according to claim 2, characterized in that: The base body is provided with a first through hole penetrating the base body, and the hook penetrates the first through hole and is fixed with the base body.

4. A bone peg hook device for orthodontic use according to claim 1, characterized in that: The hook penetrates the base body, the base body is provided with a second through hole penetrating the base body and the hook, the axis of the second through hole is perpendicular to the extending direction of the hook, and the second through hole is provided with a ligature for fixing the hook and the base body.

5. A bone peg hook device for orthodontic use according to claim 1, characterized in that: The bottom of the base body is provided with an inwardly recessed square hole groove, and the rear end of the bone nail is a square column and is tightly fitted in the square hole groove.

6. A bone peg hook device for orthodontic use according to claim 1, characterized in that: The extended fixing base is made of metal.

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