Novel orthopedic implant fixator

Abstract

The utility model relates to the technical field of medical instruments, and discloses a novel orthopedic implant fixator which comprises a screw and a steel plate, the top end of the screw is fixedly connected with a nut, the outer portion of the nut is fixedly connected with a first thread, the inner wall of the steel plate is fixedly connected with a plurality of second threads, the first thread is in threaded connection with the second threads, and the first thread is in threaded connection with the second threads. A reinforcing assembly used for improving the performance of the device is fixedly connected to the interior of the screw and comprises an anti-wear layer, the outer portion of the anti-wear layer is fixedly connected to the inner wall of the screw, a stabilizing layer is fixedly connected to the inner wall of the anti-wear layer, and a promoting layer is fixedly connected to the inner wall of the stabilizing layer. According to the utility model, the screw thread I is designed on the surface of the screw cap, so that the screw cap can be stably connected with a steel plate during installation, additional tools are not needed for fixation, the complexity and duration of operation steps are reduced, and the risk of infection is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a novel orthopedic implant fixator. Background Art

[0002] Medical device technology is a discipline encompassing medicine, engineering, and biotechnology, with the goal of designing, manufacturing, and improving any instrument, device, tool, software, material, or system used to diagnose, prevent, monitor, treat, or alleviate disease. A new type of orthopedic implant fixator is an example of this technology. Typically made of biocompatible materials, it is designed to stabilize fractures or repair bones, promoting recovery.

[0003] In the existing technology, some fixators require additional tools to combine the screws after installing them on the steel plate, which increases the complexity and duration of the surgical steps, thereby increasing the risk of infection. Therefore, a new orthopedic implant fixator is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the present invention provides a new orthopedic implant fixator, which aims to improve the problem in the prior art that some fixators require additional tools to combine the screws after installing them on the steel plate, which increases the complexity and duration of the surgical steps and thus increases the risk of infection.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A novel orthopedic implant fixator comprises a screw and a steel plate. The top of the screw is fixedly connected to a nut, the outer portion of the nut is fixedly connected to a first thread, the inner wall of the steel plate is fixedly connected to a plurality of second threads, the first threads are threadedly connected to the second threads, and the inner portion of the screw is fixedly connected to a reinforcement component for improving the performance of the device.

[0007] As a further description of the above technical solution:

[0008] The reinforcing component includes an anti-wear layer, the outer portion of the anti-wear layer is fixedly connected to the inner wall of the screw, the inner wall of the anti-wear layer is fixedly connected to a stabilizing layer, the inner wall of the stabilizing layer is fixedly connected to a promoting layer, the inner wall of the promoting layer is fixedly connected to a bonding layer, and the inner wall of the bonding layer is fixedly connected to a degradation layer;

[0009] As a further description of the above technical solution:

[0010] The material of the screw is titanium alloy, and the material of the steel plate is memory alloy;

[0011] As a further description of the above technical solution:

[0012] The material of the anti-wear layer is titanium nitride, and the material of the nut is cobalt-chromium alloy;

[0013] As a further description of the above technical solution:

[0014] The material of the stabilizing layer is carbon fiber reinforced composite material, and both ends of the stabilizing layer are fixedly connected to the inner wall of the screw;

[0015] As a further description of the above technical solution:

[0016] The material of the promotion layer is nano-hydroxyapatite, and both ends of the promotion layer are fixedly connected to the inner wall of the screw;

[0017] As a further description of the above technical solution:

[0018] The material of the bonding layer is bioactive glass, and both ends of the bonding layer are fixedly connected to the inner wall of the screw;

[0019] As a further description of the above technical solution:

[0020] The degradation layer is made of polylactic acid, and both ends of the degradation layer are fixedly connected to the inner wall of the screw.

[0021] The utility model has the following beneficial effects:

[0022] In the utility model, a thread is designed on the surface of the nut, so that it can form a stable connection with the steel plate during installation, and no additional tools are needed for fixation, which reduces the complexity and duration of the surgical steps, thereby reducing the risk of infection; at the same time, by adding material layers such as anti-wear layer, stabilization layer, and promotion layer, the long-term stability and biocompatibility of the implant fixator are achieved, and the purpose of promoting bone cell growth and tissue regeneration is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional schematic diagram of a novel orthopedic implant fixator proposed by the present invention;

[0024] Figure 2 for Figure 1 A magnified view of point A in the figure;

[0025] Figure 3 for Figure 1 Enlarged view of point B in FIG.

[0026] Figure 4 This is a schematic structural diagram of a degradation layer of a novel orthopedic implant fixator proposed in the present invention;

[0027] Figure 5This is a schematic structural diagram of the anti-wear layer of a novel orthopedic implant fixator proposed in the present invention.

[0028] Legend:

[0029] 1. Screw; 2. Nut; 3. Thread 1; 4. Steel plate; 5. Thread 2; 6. Anti-wear layer; 7. Stabilization layer; 8. Promotion layer; 9. Bonding layer; 10. Degradation layer. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Reference Figures 1 to 3 The utility model provides an embodiment: a new orthopedic implant fixator, comprising a screw 1 and a steel plate 4. The screw 1 is made of titanium alloy. As the core component of the implant, the screw 1 made of titanium alloy has good biocompatibility, excellent mechanical properties and corrosion resistance. The elastic modulus of titanium alloy is relatively closer to that of bones, which helps to reduce the stress shielding effect and promote the natural load of bone tissue. The steel plate 4 is made of memory alloy. The material of the memory alloy can restore its original shape under certain temperature conditions after deformation, thereby providing unique adaptability and support effects during the implantation process. The top of the screw 1 is fixedly connected with a nut 2, and the material of the nut 2 is cobalt-chromium alloy. The cobalt-chromium alloy is used to manufacture the nut 2 and is selected for its excellent mechanical properties and wear resistance. The nut 2 of this material is combined with the screw 1 to ensure the reliability and durability of the entire structure. The outside of the nut 2 is fixedly connected with a thread 1 3, and the inner wall of the steel plate 4 is fixedly connected with multiple threads 2 5. Thread 1 3 and thread 2 5 are threadedly connected. Thread 1 3 is intended to interlock with thread 2 5 in the steel plate 4, thereby ensuring that the steel plate 4 can be firmly connected to the screw 1. No additional tools are required for fixation, which reduces the complexity and duration of the surgical steps and thus reduces the risk of infection.

[0032] Reference Figures 4 and 5The interior of the screw 1 is fixedly connected to a reinforcement component for improving the performance of the device. The reinforcement component includes an anti-wear layer 6. The exterior of the anti-wear layer 6 is fixedly connected to the inner wall of the screw 1. The material of the anti-wear layer 6 is titanium nitride TiN. Titanium nitride is added to the inner wall of the screw 1 as an anti-wear layer 6 due to its high hardness and good wear resistance. It protects the implant from wear and extends its service life. The inner wall of the anti-wear layer 6 is fixedly connected to a stabilization layer 7. The material of the stabilization layer 7 is carbon fiber reinforced composite material. Both ends of the stabilization layer 7 are fixedly connected to the inner wall of the screw 1, providing additional structural support and stability while keeping the implant lightweight. Carbon fiber reinforced composite material has high strength and stiffness and good compatibility with human tissue. The inner wall of the stabilization layer 7 is fixedly connected to a promotion layer 8. The material of the promotion layer 8 is nano-hydroxyapatite. Both ends of the promotion layer 8 are fixedly connected to the inner wall of the screw 1. It mimics the natural mineral composition of bone, increases the affinity between the implant and bone, and promotes early bone cell growth and the integration of the implant with bone.

[0033] The inner wall of the promotion layer 8 is fixedly connected to a bonding layer 9 made of bioactive glass. Both ends of the bonding layer 9 are fixedly connected to the inner wall of the screw 1. Bioactive glass has the property of inducing bone cell growth and can tightly integrate with the surrounding bone tissue, accelerating the healing process. The inner wall of the bonding layer 9 is fixedly connected to a degradation layer 10 made of polylactic acid (PLA). Both ends of the degradation layer 10 are fixedly connected to the inner wall of the screw 1. As the internal degradation layer 10, polylactic acid is a biodegradable polymer that gradually degrades over time, allowing bone tissue to gradually replace it, promoting long-term fixation and tissue regeneration.

[0034] Working Principle: This orthopedic implant fixator utilizes a composite, multilayered material system designed to achieve optimal biocompatibility, mechanical properties, and patient comfort. The system consists of a screw 1, a plate 4, a nut 2, and its internal reinforcements. Each component is carefully designed to adapt to the complex biological environment within the human body and ensure successful implantation and long-term stability.

[0035] Screw 1 is made of titanium alloy, a material widely used in orthopedic implants and highly regarded for its excellent biocompatibility, superior mechanical properties, and good corrosion resistance. Titanium alloy's elastic modulus is similar to that of human bone, helping to reduce stress shielding and allowing natural bone to bear appropriate loads, which is crucial for promoting bone healing. Furthermore, titanium alloy's low specific gravity makes the implant less burdensome on the patient.

[0036] The steel plate 4 is made of a memory alloy, a material that can return to its original shape under certain temperature conditions after deformation. This unique property allows the steel plate 4 to adapt to the shape and position of the bone during implantation, providing personalized support and fixation for the patient. The use of memory alloy not only improves the flexibility of the surgery, but also enhances the comfort and stability after implantation. At the same time, the thread 1 3 on the nut 2 can be threadedly connected to the thread 2 5 on the steel plate 4, so that after the screw 1 is driven into the patient's bone, it can form a stable connection with the steel plate 4. This design no longer requires additional tools for fixation, reduces the complexity and duration of the surgical steps, and thus reduces the risk of infection.

[0037] Nut 2 is made of cobalt-chromium alloy, a material chosen for its excellent mechanical properties and wear resistance. The hardness and strength of cobalt-chromium alloy ensure the reliability and durability of the connection between nut 2 and screw 1, maintaining its integrity and functionality even under long-term loads and movement.

[0038] The design of the reinforcement components further enhances the performance of the entire fixator. The anti-wear layer 6 is composed of titanium nitride (TiN), a ceramic material with extremely high hardness and good wear resistance. Adding the anti-wear layer 6 to the inner wall of the screw 1 can significantly improve the durability of the implant and reduce the risk of failure due to wear. The stabilization layer 7 is made of carbon fiber reinforced composite material. The high strength and stiffness of this material provide additional structural support and stability to the implant, while its lightweight properties reduce the physical burden on the patient.

[0039] The promotion layer 8 uses nanohydroxyapatite, a material that mimics the natural mineral composition of bone, increasing the affinity of the implant to bone and promoting early bone cell growth and implant-bone integration. The binding layer 9 uses bioactive glass, which can induce bone cell growth and close integration with surrounding bone tissue, accelerating the healing process. The innermost degradation layer 10 is made of polylactic acid (PLA), a biodegradable polymer that gradually degrades over time, allowing bone tissue to gradually replace it, promoting long-term fixation and tissue regeneration.

[0040] The design of this entire new orthopedic implant fixator takes into account not only the biological and mechanical properties of the materials but also the actual needs and quality of life of the patient. Through this multi-layered, multi-material integrated design, the implant fixator of this utility model is able to promote the growth and integration of bone cells while ensuring initial stability, ultimately achieving long-term implant stability and rapid patient recovery. Furthermore, the design also considers the long-term performance of the implant. By using biodegradable materials, the risk of secondary surgery is reduced, providing patients with a safer and more effective treatment option.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A novel orthopedic implant fixator, comprising a screw (1) and a steel plate (4), characterized in that: The top of the screw (1) is fixedly connected to a nut (2), the outside of the nut (2) is fixedly connected to a thread 1 (3), the inner wall of the steel plate (4) is fixedly connected to a plurality of thread 2s (5), the thread 1 (3) and the thread 2 (5) are threadedly connected, and the inside of the screw (1) is fixedly connected to an enhanced component for improving the performance of the device.

2. A novel orthopedic implant fixator according to claim 1, characterized in that: The reinforcing component comprises an anti-wear layer (6), the outer portion of the anti-wear layer (6) is fixedly connected to the inner wall of the screw (1), the inner wall of the anti-wear layer (6) is fixedly connected to a stabilizing layer (7), the inner wall of the stabilizing layer (7) is fixedly connected to a promoting layer (8), the inner wall of the promoting layer (8) is fixedly connected to a bonding layer (9), and the inner wall of the bonding layer (9) is fixedly connected to a degradation layer (10).

3. The novel orthopedic implant fixator according to claim 1, characterized in that: The material of the screw (1) is titanium alloy, and the material of the steel plate (4) is memory alloy.

4. The novel orthopedic implant fixator according to claim 2, characterized in that: The material of the anti-wear layer (6) is titanium nitride (TiN), and the material of the nut (2) is cobalt-chromium alloy.

5. The novel orthopedic implant fixator according to claim 2, characterized in that: The material of the stabilizing layer (7) is a carbon fiber reinforced composite material, and both ends of the stabilizing layer (7) are fixedly connected to the inner wall of the screw (1).

6. The novel orthopedic implant fixator according to claim 2, characterized in that: The material of the promotion layer (8) is nano-hydroxyapatite, and both ends of the promotion layer (8) are fixedly connected to the inner wall of the screw (1).

7. The novel orthopedic implant fixator according to claim 2, characterized in that: The material of the bonding layer (9) is bioactive glass, and both ends of the bonding layer (9) are fixedly connected to the inner wall of the screw (1).

8. The novel orthopedic implant fixator according to claim 2, characterized in that: The material of the degradation layer (10) is polylactic acid (PLA), and both ends of the degradation layer (10) are fixedly connected to the inner wall of the screw (1).

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