Novel anti-falling micro-implant anchorage nail

Abstract

The utility model discloses a novel anti-drop micro-implant anchorage nail which comprises a connecting part, the top of the connecting part is fixedly connected with a screw head, the top of the screw head is provided with a rotary concave hole, and the bottom of the rotary concave hole is provided with a limiting groove. Through the arrangement of the connecting part, the screw head, the rotary concave hole, the limiting groove, the limiting cylinder, the annular groove, the limiting piece, the connecting rod and the traction body, when anterior teeth are opened, orthodontic micro-implant nails are implanted into posterior tooth areas on the two sides, the rear sections of arch wires are arranged in wire penetrating holes of the orthodontic micro-implant nails, and the front sections of the arch wires are arranged on the gingiva of an anterior tooth bracket; the anterior teeth are pulled to move towards the root direction by utilizing the elasticity of the arch wire, the anterior teeth are depressed, the traction body of the orthodontic micro-implant nail can freely rotate relative to the connecting part and the nail body, anti-inflammatory liquid medicine is injected into the inner cavity of the external thread part through the injection hole, and the anti-inflammatory liquid medicine flows out through the liquid outlet hole to be in contact with gingival tissues; and the anti-inflammation can be well carried out on the part around the implant anchorage nail.

Description

Technical Field

[0001] The utility model relates to the technical field of oral implantation, in particular to a novel anti-falling micro-implantation anchorage nail. Background Art

[0002] Oral implant is a kind of oral therapy, and its cost roughly includes three parts: implant, crown and medical service cost. In the field of orthodontics, when opening the front teeth, two methods are often used: one is to implant orthodontic micro-implants in the alveolar bone of the front teeth area, and the other is to implant orthodontic micro-implants in the posterior teeth area on both sides;

[0003] For example, the utility model disclosed provides "an orthodontic micro-implant nail", and its announcement number is: CN205494042U. The patent includes a fixed nail body and a traction body, the fixed nail body is located at the lower part, the traction body is located at the upper end of the fixed nail body, the lower end of the fixed nail body is provided with a fixed thread, and the traction body is provided with a groove; a corresponding rotating concave hole and a rotating convex column are provided between the upper end of the fixed nail body and the traction body, which can convert the torque generated by the arch wire to the orthodontic micro-implant nail into pressure on the orthodontic micro-implant nail, which can effectively prevent the arch wire force from being dissipated due to the rotation of the orthodontic micro-implant nail, and also reduce the possibility of the orthodontic micro-implant nail falling off;

[0004] However, the threaded portion of this patent is solid. When the patient is undergoing implantation of the support nail and after implantation, anti-inflammatory operations need to be performed around the support nail. The solid threaded portion will cause inconvenience in anti-inflammatory treatment, and the anti-inflammatory effect of oral anti-inflammatory drugs is not good. Therefore, the purpose of the utility model is to facilitate the injection of anti-inflammatory drugs by providing an injection hole on the threaded portion. Utility Model Content

[0005] The purpose of the utility model is to provide a new type of anti-falling micro-implantation support nail, which has the advantage of convenient injection of anti-inflammatory drugs, and solves the problem that the threaded portion of the existing orthodontic micro-implantation nail is solid, and anti-inflammatory operations need to be performed around the support nail when and after the patient implants the support nail. The solid threaded portion makes anti-inflammatory work inconvenient, and the anti-inflammatory effect of oral anti-inflammatory drugs is also poor.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a novel anti-falling micro-implantation support nail, comprising a connecting part, the top of the connecting part is fixedly connected with a screw head, the top of the screw head is provided with a rotating concave hole, the bottom of the rotating concave hole is provided with a limiting groove, the inner cavity of the limiting groove is movably connected to a limiting cylinder, the surface of the limiting cylinder is provided with an annular groove, both sides of the inner cavity of the limiting groove are fixedly connected with limiting plates, the surface of the limiting plate is movably connected to the inner cavity of the annular groove, the top of the limiting cylinder is fixedly connected with a connecting rod, the top of the connecting rod is fixedly connected with a traction body, the top of the traction body is fixedly connected with a head cap, the surface of the traction body is provided with a threading hole, the bottom of the connecting part is fixedly connected with a nail body, the bottom of the connecting part and located on the outside of the nail body is fixedly connected with an external threaded part, the bottom of the nail body is fixedly connected with a nail tip, an injection hole is provided on one side of the screw head, a connecting groove is provided on the left side of the injection hole, and a liquid outlet is provided on the surface of the external threaded part.

[0007] Preferably, grooves are provided on both sides of the inner cavity of the rotating recessed hole, and balls are movably connected to the inner cavities of the grooves.

[0008] Preferably, a front threaded surface is formed on the front side of the nail tip, and a rear threaded surface is formed on the back side of the nail tip.

[0009] Preferably, the material of the nail body is zirconia ceramic material, and the materials of the screw head, the head cap part and the external thread part are the same as the material of the nail body.

[0010] Preferably, the front and back sides of the traction body are fixedly connected with threading plates, and the surface of the threading plates is provided with through holes.

[0011] Preferably, the inner cavity of the injection hole is provided with a sealing body, and the material of the sealing body is synthetic rubber.

[0012] Preferably, both sides of the nail body are fixedly connected with a flow guide, and a side of the flow guide away from the nail body is in contact with the inner wall of the external threaded portion.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model provides a connecting part, a screw head, a rotating concave hole, a limiting groove, a limiting cylinder, an annular groove, a limiting plate, a connecting rod and a traction body. When the front teeth are opened, orthodontic micro-implant screws are implanted in the posterior teeth area on both sides. The rear section of the arch wire is placed in the threading hole of the orthodontic micro-implant screw, and the front section is placed on the gingival side of the front tooth bracket. The elasticity of the arch wire is used to pull the front teeth to move toward the root side to press the front teeth down. Since the traction body of the orthodontic micro-implant screw can rotate freely relative to the connecting part and the screw body, anti-inflammatory liquid is injected into the inner cavity of the external threaded part through the injection hole. The anti-inflammatory liquid flows out through the liquid outlet hole and contacts with the gingival tissue, which can effectively reduce inflammation of the area around the implant support nail.

[0015] 2. The utility model sets a groove and a ball in its inner cavity to limit the two sides of the connecting rod, which can reduce the friction between the surface of the connecting rod and the inner wall of the rotating concave hole, making the connecting rod rotate more smoothly. By setting the front threaded surface and the rear threaded surface, the angle of the front threaded surface relative to the cross section is smaller than the angle of the rear threaded surface relative to the cross section. When screwing the micro-implant nail, since the threaded surface is biased towards the rear side, it is easier to screw the micro-implant nail in and fix it. By setting the nail body, screw head and head cap part of zirconia ceramic material, compared with the traditional metal support nail body, the occurrence of biocompatibility can be greatly reduced. By setting the threading plate and the through hole on its surface, the arch wire can be selectively passed through, which is convenient for adjusting the position of the arch wire. By setting a sealing body, it is used to seal the injection hole to prevent external dirt from entering the connecting groove and the inner cavity of the external threaded part. By setting a guide body, the anti-inflammatory liquid can flow out better through the liquid outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic cross-sectional view of the structure of the utility model;

[0018] Figure 3 For this utility model Figure 2 A local enlarged schematic diagram of the middle A;

[0019] Figure 4 It is a stereoscopic diagram of the connecting rod and the limiting cylinder of the utility model.

[0020] In the figure: 1, connecting part; 2, screw head; 3, rotating concave hole; 4, limiting groove; 5, limiting cylinder; 6, annular groove; 7, limiting plate; 8, connecting rod; 9, traction body; 10, head cap; 11, threading hole; 12, nail body; 13, external threaded part; 14, nail tip; 15, injection hole; 16, connecting groove; 17, liquid outlet hole; 18, threading plate; 19, through hole; 20, sealing body. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The components of the present invention are all common standard components or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0023] See also Figure 1-4 A novel anti-falling micro-implantation anchorage nail comprises a connecting part 1, a screw head 2 is fixedly connected to the top of the connecting part 1, a rotating concave hole 3 is provided on the top of the screw head 2, a limiting groove 4 is provided at the bottom of the rotating concave hole 3, the inner cavity of the limiting groove 4 is movably connected to a limiting cylinder 5, an annular groove 6 is provided on the surface of the limiting cylinder 5, both sides of the inner cavity of the limiting groove 4 are fixedly connected to limiting plates 7, the surface of the limiting plate 7 is movably connected to the inner cavity of the annular groove 6, the top of the limiting cylinder 5 is fixedly connected to a connecting rod 8, and the connecting rod 8 is fixedly connected to the top of the limiting cylinder 5. The top of the connecting rod 8 is fixedly connected to a traction body 9, the top of the traction body 9 is fixedly connected to a head cap portion 10, a threading hole 11 is provided on the surface of the traction body 9, the bottom of the connecting portion 1 is fixedly connected to a nail body 12, an external threaded portion 13 is fixedly connected to the bottom of the connecting portion 1 and located on the outside of the nail body 12, a nail tip 14 is fixedly connected to the bottom of the nail body 12, an injection hole 15 is provided on one side of the screw head 2, a connecting groove 16 is provided on the left side of the injection hole 15, and a liquid outlet hole 17 is provided on the surface of the external threaded portion 13.

[0024] Grooves are provided on both sides of the inner cavity of the rotating recessed hole 3, and balls are movably connected to the inner cavities of the grooves.

[0025] Through the above technical solution, by setting the groove and the balls in its inner cavity to limit the two sides of the connecting rod 8, the friction between the surface of the connecting rod 8 and the inner wall of the rotating recessed hole 3 can be reduced, making the connecting rod 8 rotate more smoothly.

[0026] The front side of the nail tip 14 is provided with a front threaded surface, and the back side of the nail tip 14 is provided with a rear threaded surface.

[0027] Through the above technical solution, by setting the front thread surface and the rear thread surface, the angle of the front thread surface relative to the cross section is smaller than the angle of the rear thread surface relative to the cross section. When the micro-implant is screwed, the micro-implant is easier to screw in and fix because the thread surface is biased toward the rear side.

[0028] The material of the nail body 12 is zirconia ceramic material, and the materials of the screw head 2 , the head cap portion 10 and the external thread portion 13 are the same as the material of the nail body 12 .

[0029] Through the above technical solution, by providing structures such as the nail body 12, the screw head 2 and the head cap 10 made of zirconium oxide ceramic material, the occurrence of biocompatibility can be greatly reduced compared with the traditional metal material anchor nail body.

[0030] The front and back sides of the traction body 9 are both fixedly connected with threading plates 18 , and the surface of the threading plates 18 is provided with through holes 19 .

[0031] Through the above technical solution, by providing the threading piece 18 and the through hole 19 on its surface, the arch wire can be selectively passed through, so that the position of the arch wire can be adjusted conveniently.

[0032] The inner cavity of the injection hole 15 is provided with a sealing body 20 , and the material of the sealing body 20 is synthetic rubber.

[0033] Through the above technical solution, the sealing body 20 is provided to seal the injection hole 15 , thereby preventing external dirt from entering the inner cavity of the connecting groove 16 and the external threaded portion 13 .

[0034] Both sides of the nail body 12 are fixedly connected with a flow guide, and the side of the flow guide away from the nail body 12 is in contact with the inner wall of the external threaded portion 13 .

[0035] Through the above technical solution, by providing a guiding body, the anti-inflammatory liquid can flow out through the liquid outlet 17 better.

[0036] When in use, during implant treatment, first locate the target position to be implanted through X-ray or CT, then perform local anesthesia at the target position, use a cutter to make a 2-3mm incision on the surface mucosa of the target position, and then implant the new micro-implant support nail into the target position. When the front teeth are opened, orthodontic micro-implant nails are implanted in the posterior teeth area on both sides, the rear section of the arch wire is placed in the orthodontic micro-implant nail threading hole 11, and the front section is placed on the gingival side of the front tooth bracket. The elasticity of the arch wire is used to pull the front teeth toward the root side to press the front teeth down. Since the traction body 9 of the orthodontic micro-implant nail can rotate freely relative to the connecting part 1 and the nail body 12, the torque generated by the arch wire on it can be converted into pressure on the orthodontic micro-implant nail, which can effectively prevent the arch wire force from being dissipated due to the rotation of the orthodontic micro-implant nail, and also reduce the possibility of the orthodontic micro-implant nail falling off. Anti-inflammatory liquid is injected into the inner cavity of the external threaded part 13 through the injection hole 15, and the anti-inflammatory liquid flows out through the liquid outlet 17 and contacts with the gingival tissue, which can effectively reduce inflammation of the area around the implant support nail.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel anti-dropout micro-implantation anchorage nail, comprising a connecting portion (1), characterized in that: The top of the connecting portion (1) is fixedly connected to a screw head (2), a rotating concave hole (3) is provided at the top of the screw head (2), a limiting groove (4) is provided at the bottom of the rotating concave hole (3), the inner cavity of the limiting groove (4) is movably connected to a limiting cylinder (5), the surface of the limiting cylinder (5) is provided with an annular groove (6), both sides of the inner cavity of the limiting groove (4) are fixedly connected to limiting plates (7), the surface of the limiting plate (7) is movably connected to the inner cavity of the annular groove (6), the top of the limiting cylinder (5) is fixedly connected to a connecting rod (8), and the top of the connecting rod (8) is fixedly connected to A traction body (9), wherein a head cap portion (10) is fixedly connected to the top of the traction body (9), a threading hole (11) is provided on the surface of the traction body (9), a nail body (12) is fixedly connected to the bottom of the connection portion (1), an external threaded portion (13) is fixedly connected to the bottom of the connection portion (1) and located outside the nail body (12), a nail tip (14) is fixedly connected to the bottom of the nail body (12), an injection hole (15) is provided on one side of the screw head (2), a connecting groove (16) is provided on the left side of the injection hole (15), and a liquid outlet hole (17) is provided on the surface of the external threaded portion (13).

2. The novel anti-falling micro-implantation anchorage nail according to claim 1 is characterized in that: Grooves are provided on both sides of the inner cavity of the rotating recessed hole (3), and balls are movably connected to the inner cavities of the grooves.

3. The novel anti-falling micro-implantation anchorage nail according to claim 1 is characterized in that: The front side of the nail tip (14) is provided with a front threaded surface, and the back side of the nail tip (14) is provided with a rear threaded surface.

4. The novel anti-falling micro-implantation anchorage nail according to claim 1 is characterized in that: The material of the nail body (12) is a zirconium oxide ceramic material, and the materials of the screw head (2), the head cap portion (10) and the external thread portion (13) are all the same as the material of the nail body (12).

5. The novel anti-falling micro-implantation anchorage nail according to claim 1 is characterized in that: The front and back sides of the traction body (9) are both fixedly connected with threading plates (18), and a through hole (19) is provided on the surface of the threading plate (18).

6. The novel anti-falling micro-implantation anchorage nail according to claim 1 is characterized in that: The inner cavity of the injection hole (15) is provided with a sealing body (20), and the material of the sealing body (20) is synthetic rubber.

7. The novel anti-falling micro-implantation anchorage nail according to claim 1 is characterized by: Both sides of the nail body (12) are fixedly connected with a flow guide, and the side of the flow guide away from the nail body (12) is in contact with the inner wall of the external threaded portion (13).

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