A bone nail structure

Abstract

This utility model belongs to the field of bone screws, specifically a bone screw structure. Addressing the issue that existing traditional dental bone screws have a smooth metal surface between the threads, which leads to poor contact between the smooth metal surface and bone tissue during installation, creating micro-gaps that facilitate bacterial colonization and can cause infection and inflammation, the proposed solution includes a bone screw body made of titanium alloy. The bottom outer surface of the bone screw body is coated with an HA coating, and the bottom outer surface of the bone screw body has threads for easy installation and fixation. The HA coating and reinforcing mechanism increase the contact area and friction between the bone screw and bone tissue. This design allows the bone screw to fit more tightly with the bone tissue after implantation, effectively reducing the formation of micro-gaps, thereby significantly improving the stability of the bone screw in the bone tissue, reducing the risk of loosening, and providing reliable anchorage for subsequent oral treatments (such as orthodontics).

Description

Technical Field

[0001] This utility model relates to the field of bone screw technology, and in particular to a bone screw structure. Background Technology

[0002] Bone screws are widely used in dentistry. They are implanted into the alveolar bone as a rigid fulcrum, and the orthodontic force is transmitted through elastic elements (springs / rubber chains) to achieve precise tooth movement.

[0003] Traditional dental bone screws have a smooth metal surface between the threads. When installing bone screws, the smooth metal surface does not make close contact with the bone tissue, forming micro-gaps that allow bacteria to easily colonize, leading to infection and inflammation. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where the threads of traditional dental bone screws are on a smooth metal surface. When installing bone screws, the smooth metal surface does not make close contact with the bone tissue, forming micro-gaps that allow bacteria to easily colonize, leading to infection and inflammation. Therefore, this invention proposes a bone screw structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A bone screw structure includes a bone screw body made of titanium alloy. The bottom outer surface of the bone screw body is provided with an HA coating. The bottom outer surface of the bone screw body is provided with threads for easy installation and fixing. The top of the bone screw body is provided with an annular groove for easy fitting of an elastic element. The bone screw body is provided with a reinforcing mechanism, which can make the bone screw body less prone to loosening.

[0007] In one possible design, the reinforcing mechanism includes multiple filler blocks, and multiple slots are provided on all four sides of the bone nail body. The number of slots is the same as the number of filler blocks, and the multiple filler blocks fill the multiple slots respectively.

[0008] In one possible design, the top of the bone nail body has a cross groove to facilitate the installation or removal of the bone nail body.

[0009] In one possible design, the filler block is made of hydroxyapatite nanoparticles.

[0010] In one possible design, the diameter of the slot is 300 μm.

[0011] In one possible design, the bone screw body has an arc angle to reduce damage to the oral cavity caused by the bone screw body.

[0012] In this application, during use, the patient is given local anesthesia. A small incision is made in the gingiva where the bone screw needs to be implanted using a scalpel, exposing the underlying bone tissue. A bone drill of appropriate diameter is selected, and a hole is slowly drilled in the bone tissue according to the size and implantation depth of the bone screw to create a suitable space for implantation. During drilling, care must be taken to control the speed and depth of the drill bit to avoid damaging surrounding nerves, blood vessels, and other important structures. The bone screw is then slowly screwed into the pre-drilled hole using a tool. During the screwing process, the threads at the bottom of the bone screw body will tightly engage with the bone tissue. Since the threads are no longer a traditional smooth metal surface, but are filled with HA coating and hydroxyapatite nanoparticles in the groove, the contact area and friction between the bone screw and the bone tissue are increased, making the contact between the bone screw and the bone tissue tighter, reducing the formation of microgaps, and reducing the risk of bacterial colonization. At the same time, the arc design on the bone screw body can reduce damage to oral tissues.

[0013] The beneficial effects of this utility model are as follows:

[0014] In this invention, the bone screw structure, through the HA coating and the hydroxyapatite nanoparticle filling block filled in the cavity, greatly increases the contact area and friction between the bone screw and the bone tissue. This design allows the bone screw to fit more tightly with the bone tissue after implantation, effectively reducing the formation of microgap, thereby significantly improving the stability of the bone screw in the bone tissue, reducing the risk of bone screw loosening, and providing reliable anchorage for subsequent oral treatments (such as orthodontics).

[0015] In this utility model, the bone nail structure has an arc corner on the main body of the bone nail. This design makes the edge of the bone nail more rounded during implantation and use, avoiding the sharp edge from scratching and damaging the oral tissues, reducing the patient's pain and the occurrence of postoperative complications, and promoting the healing and recovery of the patient's oral tissues.

[0016] In this invention, the HA coating and reinforcing mechanism increase the contact area and friction between the bone screw and bone tissue. This design allows the bone screw to fit more tightly with the bone tissue after implantation, effectively reducing the formation of microgaps, thereby significantly improving the stability of the bone screw in the bone tissue, reducing the risk of bone screw loosening, and providing reliable anchorage for subsequent oral treatments (such as orthodontics). Attached Figure Description

[0017] Figure 1 This is a front view schematic diagram of a bone nail structure proposed in this utility model;

[0018] Figure 2 This is a partial structural diagram of a bone nail structure proposed in this utility model;

[0019] Figure 3This is a front view schematic diagram of a bone nail structure proposed in this utility model;

[0020] Figure 4 This is a top view schematic diagram of a bone nail structure proposed in this utility model.

[0021] In the diagram: 1. Bone nail body; 2. Thread; 3. Filler block; 4. Annular groove; 5. Cross groove; 6. Arc; 7. Hole groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] In one embodiment: Refer to Figure 1-4 A bone screw structure, used in the field of bone screws, includes: a bone screw body 1 made of titanium alloy. Titanium alloy has good biocompatibility and mechanical properties, can exist stably in the human oral environment for a long time, and is not prone to corrosion and deformation, providing a basic guarantee for the reliable use of bone screws.

[0024] A HA coating is applied to the outer surface of the bottom end of the bone screw body 1. The HA hydroxyapatite coating enhances the bioactivity between the bone screw and bone tissue, promotes early integration between the bone tissue and the bone screw, and improves the stability of the bone screw. The outer surface of the bottom end of the bone screw body 1 also has threads 2 for easy installation and fixation. The thread design allows the bone screw to gradually penetrate deeper into the bone tissue through rotation during implantation, achieving stable fixation. Unlike the smooth metal surface between the threads of traditional dental bone screws, the bone screw structure in this embodiment, through subsequent reinforcement mechanism design, can solve the problem of poor contact between traditional bone screws and bone tissue.

[0025] The top of the bone screw body 1 has an annular groove 4. The main function of the annular groove 4 is to facilitate the installation of elastic elements. In oral treatments such as orthodontics, the elastic elements can be connected to the bone screw through the annular groove 4 to apply appropriate orthodontic force to the teeth.

[0026] To prevent the bone screw body 1 from loosening, a reinforcing mechanism is provided on the bone screw structure in this embodiment. Specifically, the reinforcing mechanism includes multiple filling blocks 3, and multiple slots 7 are formed on all four sides of the bone screw body 1. The number of slots 7 is the same as the number of filling blocks 3, and the multiple filling blocks 3 fill the multiple slots 7 respectively. After the bone screw is implanted into the bone tissue, the filling blocks 3 can interact with the surrounding bone tissue, increasing the friction and bonding force between the bone screw and the bone tissue, thereby improving the stability of the bone screw and reducing the possibility of loosening.

[0027] In another embodiment: Reference Figure 1-4In addition, a cross-shaped groove 5 is provided at the top of the bone screw body 1. During the operation, the doctor can use tools such as screwdrivers to insert into the cross-shaped groove 5 to easily and slowly screw the bone screw into the pre-drilled hole, thus installing the bone screw. When it is necessary to remove the bone screw, it can also be disassembled through the cross-shaped groove 5, which improves the convenience of the surgical operation.

[0028] Meanwhile, the bone screw body 1 has an arc angle 6. The design of the arc angle 6 makes the edge of the bone screw more rounded, which can reduce scratching and damage to oral tissues during implantation and use, reduce patient pain and the risk of postoperative complications, and promote the healing and recovery of oral tissues.

[0029] The material of filler block 3 and the diameter of the pore groove 7. Filler block 3 is made of hydroxyapatite nanoparticles. Hydroxyapatite nanoparticles have higher bioactivity and osteoconductivity, enabling them to better integrate with bone tissue, promote bone tissue growth and repair, further enhance the bonding strength between the bone screw and bone tissue, and improve the stability of the bone screw.

[0030] The diameter of the pores 7 is 300 μm. When the pores 7 with a diameter of 300 μm are used in conjunction with the hydroxyapatite nanoparticle filler block 3, they can provide suitable space for the interaction between the bone tissue and the filler block 3 while ensuring the stable filling of the filler block 3. This makes the bone screw and bone tissue more tightly bonded, effectively reduces the formation of microgaps, reduces the risk of bacterial colonization, and thus prevents infection and inflammation.

[0031] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A bone nail structure, characterized in that, The bone nail body (1) is made of titanium alloy. The bottom outer surface of the bone nail body (1) is coated with HA. The bottom outer surface of the bone nail body (1) is provided with threads (2) for easy installation and fixing. The top of the bone nail body (1) is provided with an annular groove (4) for easy fitting of elastic elements. The bone nail body (1) is provided with a reinforcing mechanism, which can make the bone nail body (1) less prone to loosening.

2. The bone nail structure according to claim 1, characterized in that, The strengthening mechanism includes multiple filling blocks (3), and multiple holes (7) are provided on all four sides of the bone nail body (1). The number of holes (7) is the same as the number of filling blocks (3), and the multiple filling blocks (3) are respectively filled in the multiple holes (7).

3. The bone nail structure according to claim 1, characterized in that, The top of the bone nail body (1) is provided with a cross groove (5) to facilitate the installation or removal of the bone nail body (1).

4. The bone nail structure according to claim 1, characterized in that, The filler block (3) is made of hydroxyapatite nanoparticles.

5. The bone nail structure according to claim 2, characterized in that, The diameter of the groove (7) is 300 μm.

6. The bone nail structure according to claim 1, characterized in that, The bone nail body (1) is provided with an arc angle (6) to reduce damage to the oral cavity caused by the bone nail body (1).

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