A supporting structure for an alloyed bionic bone

Abstract

The utility model discloses an alloy bionic bone's support structure, the utility model relates to artificial bone technical field. Alloy bionic bone's support structure includes the outer tube, the inside of outer tube is provided with the connecting mechanism for connecting the place of suffering from the skeleton, the connecting mechanism includes: limiting component, including setting in the lumen of outer tube, the bottom fixed mounting of lumen has honeycomb pipe, the top of lumen is provided with the limiting pipe, and the bone growth guide material in the lumen inside continues to guide new bone growth, and new bone will gradually pass through the growth hole of connecting frame, the aperture of honeycomb pipe, and form the close connection relation with device main part, and after new bone grows completely mature, because the absorption plate and screw will be with the firmness of new bone and be absorbed by human body naturally, at this time, new bone has built up the firm support structure with device main part, and no longer needs the additional fixed component, and need not like traditional steel sheet and carry out secondary operation and take out, greatly reduce the trauma and recovery time of patient.

Description

Technical Field

[0001] This utility model relates to the field of artificial bone technology, specifically to a support structure for an alloy bionic bone. Background Technology

[0002] Artificial bone implantation is a surgical method used to repair bone defects or replace part of the bone function. In the repair of some long bone fractures or bone defects, a plate is fixed to the surface of the artificial bone and normal bone with screws, or an intramedullary nail is inserted into the medullary cavity to fix the artificial bone to the surrounding bone and ensure that it remains stable during the healing process.

[0003] The existing utility model patent with publication number CN208911047U discloses an artificial bone. This utility model provides an artificial bone with the following structure: an artificial bone body and a filling layer. The artificial bone body includes a hollow shell, a bone marrow channel, and a scaffold. The bone marrow channel is located inside the hollow shell and connected to the hollow shell via the scaffold. The filling layer fills the gap between the hollow shell and the bone marrow channel. The artificial bone body is a polyetheretherketone (PEEK) artificial bone body, and the filling layer is a bone growth-active bonding layer. In this utility model, after the artificial bone is implanted into the patient's body, the bone growth-active bonding layer can induce the generation of new bone under the influence of body fluids. Furthermore, the generated new bone can grow into the interior of the artificial bone body, forming a three-dimensional interpenetrating structure, which is beneficial for the integration of the artificial bone with the patient's own bone, preventing loosening of the artificial bone and allowing for greater flexibility. This solves the technical defect in the prior art where the artificial bone cannot fuse with the patient's own bone after implantation.

[0004] The aforementioned artificial bone requires a steel plate or similar structure to fix it to the affected bone during implantation. However, it does not have a pre-installed screw installation structure, making the process of connecting the steel plate with screws inconvenient and potentially damaging the overall structure and strength of the artificial bone. Furthermore, existing artificial bone tends to connect with the affected bone due to the bone-forming material, requiring the removal of the steel plate if the patient experiences discomfort. Additionally, the steel plate may cause infections or rejection reactions. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a support structure for an alloy bionic bone, which solves the problems of needing to remove the steel plate and the lack of pre-drilled holes on the surface of the artificial bone affecting screw installation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A support structure for an alloy biomimetic bone includes an outer tube, the interior of which is provided with a connecting mechanism for connecting to the bone at the affected site. The connecting mechanism includes:

[0007] The limiting component includes a cavity disposed inside an outer tube, a honeycomb tube fixedly installed at the bottom of the cavity, a limiting tube disposed above the cavity, a connecting frame fixedly installed on the outside of the limiting tube, and growth holes disposed on both sides of the connecting frame.

[0008] Fixation components, located on both sides of the top of the outer tube, are used to restrict the relative position between the outer tube and the bone at the affected site before bone growth is complete.

[0009] Preferably, the fixing component includes connecting plates fitted onto both sides of the top of the outer tube, a connecting bolt inserted into one side of the connecting plate, an absorption plate fixedly installed on the top of the connecting plate, and a screw inserted into one side of the absorption plate.

[0010] Preferably, the outer tube has a planar structure on the top outer side that fits into the connecting plate, and the limiting tube is symmetrically arranged inside the cavity with the center of the planar structure as the reference. The two ends of the limiting tube penetrate the outer tube wall, and the central cavity is connected to the outside.

[0011] Preferably, the connecting frame has an opening structure at its center that is fixedly connected to the outer wall of the limiting tube. The connecting frame is symmetrically installed on both sides of the limiting tube with the center of the limiting tube as a reference, and both ends of the connecting frame are fixedly connected to the inner wall of the outer tube. The surface of the honeycomb tube is provided with hexagonal vertical openings distributed in an array.

[0012] Preferably, the connecting plates are symmetrically installed on both sides of the top of the outer tube, and the connecting bolts are connected to the inner wall of the limiting tube through a threaded structure.

[0013] Preferably, the connecting plate is connected to the outer tube by two connecting bolts, the outer curvature of the connecting plate is consistent with the outer curvature of the outer side of the outer tube, the end of the connecting bolt is fitted into the outer side of the connecting plate, and the absorbent plate and screw are made of bone guiding material.

[0014] Beneficial effects

[0015] This invention provides a support structure for an alloy biomimetic bone. Compared with the prior art, it has the following advantages:

[0016] (1) In the new bone growth stage, the absorbable plate and screws of this alloy bionic bone support structure first assume the role of fixation, firmly fixing the device to the bone at the affected site, providing a stable environment for new bone growth and preventing device displacement. At the same time, the bone growth guiding material inside the lumen will continuously guide the growth of new bone. The new bone will gradually pass through the growth holes of the connecting frame and the openings of the honeycomb tube, forming a tight connection with the main body of the device. When the new bone is fully grown and matured, since the absorbable plate and screws are made of bone guiding material, they will be naturally absorbed by the human body as the new bone stabilizes. At this time, the new bone has built a stable support structure with the main body of the device, and no additional fixation components are needed. Unlike traditional steel plates, there is no need for secondary surgery to remove them, which greatly reduces the trauma and recovery time for patients.

[0017] (2) The supporting structure of this alloy bionic bone has a pre-designed planar structure at the top of the outer tube that fits into the connecting plate, providing precise positioning for the installation of the connecting plate. At the same time, the connecting plate has pre-set insertion holes for connecting bolts, which can be directly passed through these holes and connected to the internal limiting tube via threads, quickly completing the fixation of the connecting plate. In addition, the absorbent plate fixed at the top of the connecting plate also has pre-set insertion holes for screws, so the screws do not need to be drilled on the surface of the artificial bone and can be directly passed through the holes in the absorbent plate to connect with the bone at the affected area. These pre-designed fitting structures, bolt holes, and screw holes form a complete installation path, making the screw installation process more convenient and precise, and avoiding damage to the artificial bone structure caused by additional drilling. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the outer tube of this utility model;

[0020] Figure 3 This is a schematic diagram of the screw mounting structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure between the connecting frame and the limiting tube of this utility model;

[0022] In the diagram: 1. Outer tube; 2. Connecting mechanism; 21. Limiting component; 211. Tube cavity; 212. Honeycomb tube; 213. Limiting tube; 214. Connecting frame; 215. Growth hole; 22. Fixing component; 221. Connecting plate; 222. Connecting bolt; 223. Absorption plate; 224. Screw. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This utility model provides a technical solution: a support structure for an alloy biomimetic bone includes an outer tube 1, and a connecting mechanism 2 is provided inside the outer tube 1 for connecting to the bone at the affected site. The connecting mechanism 2 includes:

[0025] The limiting component 21 includes a cavity 211 disposed inside the outer tube 1. A honeycomb tube 212 is fixedly installed at the bottom of the cavity 211. A limiting tube 213 is disposed above the cavity 211. A connecting frame 214 is fixedly installed on the outside of the limiting tube 213. Growth holes 215 are provided on both sides of the connecting frame 214. A planar structure that fits into the connecting plate 221 is provided on the top outer side of the outer tube 1. The limiting tube 213 is symmetrically disposed inside the cavity 211 with the center of the planar structure as the reference. Both ends of the limiting tube 213 penetrate the tube wall of the outer tube 1. The central cavity is connected to the outside. An opening structure that is fixedly connected to the outer wall of the limiting tube 213 is provided at the center of the connecting frame 214. The connecting frame 214 is symmetrically installed on both sides of the limiting tube 213 with the center of the limiting tube 213 as the reference. Both ends of the connecting frame 214 are fixedly connected to the inner wall of the outer tube 1. The surface of the honeycomb tube 212 is provided with hexagonal vertical openings distributed in an array.

[0026] Specifically, the cavity 211 is filled with HA / TCP composite bone growth guiding material, covering the cavity of the honeycomb tube 212, the top of the cavity 211, and the inside of the growth hole 215. The guiding material guides bone growth. After the bone growth period ends, the bone in the affected area will completely fill the internal space of the cavity 211. It works with the honeycomb tube 212, the limiting tube 213, and the growth hole 215 to restrict the relative position between the bone and the cavity 211 and improve the connection strength. The connecting frame 214 and the limiting tube 213 can increase the structural strength of the top of the outer tube 1, and the honeycomb tube 212 can increase the structural strength of the bottom of the limiting tube 213.

[0027] Fixation components 22 are disposed on both sides of the top of the outer tube 1 to restrict the relative position between the outer tube 1 and the bone at the affected site before bone growth is complete. Fixation components 22 include connecting plates 221 fitted and installed on both sides of the top of the outer tube 1. Connecting bolts 222 are inserted and installed on one side of the connecting plates 221. Absorbing plates 223 are fixedly installed on the top of the connecting plates 221. Screws 224 are inserted and installed on one side of the absorbing plates 223. The connecting plates 221 are symmetrically installed on both sides of the top of the outer tube 1. The connecting bolts 222 are connected to the inner wall of the limiting tube 213 through a threaded structure. The connecting plates 221 are connected to the outer tube 1 through two connecting bolts 222. The outer curvature of the connecting plates 221 is consistent with the outer curvature of the outer side of the outer tube 1. The ends of the connecting bolts 222 are fitted with the outer side of the connecting plates 221. The absorbing plates 223 and screws 224 are made of bone guiding material.

[0028] Specifically, after the connecting plate 221 is installed by the connecting bolt 222, its outer side is fitted with the outer surface of the outer tube 1 to form a complete tubular structure. The end of the connecting bolt 222 is fitted inside the connecting plate 221, and its outer side is flush with the outer side of the connecting plate 221, so as to facilitate the adhesion of muscle tissue to the outer tube 1 and reduce rejection. The absorbent plate 223 can cooperate with the screw 224 to restrict the position of the bone and the affected area of ​​the outer tube 1 before the end of the bone growth period. The absorbent plate 223 and the guiding material inside the tube 211 work together. After the bone growth is completed, the absorbent plate 223 and the screw 224 will be completely absorbed. The overall connection is borne by the limiting component 21 and the grown bone. At the same time, the contents not described in detail in this specification are all prior art known to those skilled in the art.

[0029] During the procedure, firstly, using the shape and size of the absorbent plate 223 as a reference, a flat fitting surface is prepared on both sides of the bone at the affected area to ensure that the prepared surface can completely fit with the absorbent plate 223, providing a stable support surface for subsequent fixation. Then, according to the bone defect or repair needs at the affected area, the outer tube 1 is precisely implanted into the corresponding bone position at the affected area, ensuring that the axis of the outer tube 1 is consistent with the direction of force on the bone. Next, the connecting plate 221 is aligned with the pre-set fitting surface structure at the top of the outer tube 1, so that the curvature of the connecting plate 221 and the outer side of the outer tube 1 is maintained. Hold the connection plate 221 in place and insert it into the inner wall of the limiting tube 213 through a threaded structure. The symmetrical fixing of the two connecting bolts 222 ensures that the connecting plate 221 and the outer tube 1 form a stable whole. The ends of the connecting bolts 222 are fitted onto the outer side of the connecting plate 221 to maintain a smooth outer surface and reduce tissue rejection. At this point, the absorbent plate 223 at the top of the connecting plate 221 is precisely aligned with the fitted planes on both sides of the bone after trimming. Then, the screws 224 are inserted from the absorbent plate 221. The plate 223 is inserted through the pre-drilled holes and slowly screwed into the bone at the affected site. The anchoring effect of the screws 224 initially fixes the absorbent plate 223, connecting plate 221, and outer tube 1 to the bone at the affected site, limiting their relative displacement before new bone growth. Then, HA / TCP composite bone growth guiding material is filled into the lumen 211, ensuring that the material completely covers the cavity of the honeycomb tube 212, the top space of the lumen 211, and the inside of the growth holes 215 on both sides of the connecting frame 214. Under fluid conditions, the bone growth guiding material continuously... Inducing new bone formation, the new bone gradually passes through the growth pores 215 and the hexagonal vertical openings on the surface of the honeycomb tubes 212, gradually filling the gaps inside the tube 211, and forming a tight three-dimensional interpenetrating structure with the outer tube 1, the limiting tube 213, and the connecting frame 214. As the new bone matures, the absorbent plate 223 and screw 224 made of bone guiding material are naturally absorbed by the human body. Finally, the new bone is completely integrated with the outer tube 1, the limiting tube 213, the connecting frame 214, and the honeycomb tubes 212 in the main body of the device, achieving a long-term stable skeletal support function.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A support structure for an alloy biomimetic bone, characterized in that: Includes an outer tube (1), the inner part of which is provided a connecting mechanism (2) for connecting to the bone at the affected site, the connecting mechanism (2) including: The limiting component (21) includes a cavity (211) disposed inside the outer tube (1), a honeycomb tube (212) is fixedly installed at the bottom of the cavity (211), a limiting tube (213) is disposed above the cavity (211), a connecting frame (214) is fixedly installed on the outside of the limiting tube (213), and growth holes (215) are provided on both sides of the connecting frame (214). Fixation components (22) are located on both sides of the top of the outer tube (1) to restrict the relative position between the outer tube (1) and the affected bone before bone growth is complete.

2. The support structure of an alloy biomimetic bone according to claim 1, characterized in that: The fixing component (22) includes a connecting plate (221) fitted into both sides of the top of the outer tube (1), a connecting bolt (222) is inserted into one side of the connecting plate (221), an absorption plate (223) is fixedly installed on the top of the connecting plate (221), and a screw (224) is inserted into one side of the absorption plate (223).

3. The support structure of an alloy biomimetic bone according to claim 2, characterized in that: The outer tube (1) has a planar structure on the top outer side that fits into the connecting plate (221), and the limiting tube (213) is symmetrically arranged inside the cavity (211) with the center of the planar structure as the reference. The two ends of the limiting tube (213) penetrate the wall of the outer tube (1), and the central cavity is connected to the outside.

4. The support structure of an alloy biomimetic bone according to claim 1, characterized in that: The center of the connecting frame (214) is provided with an opening structure that is fixedly connected to the outer wall of the limiting tube (213). The connecting frame (214) is symmetrically installed on both sides of the limiting tube (213) with the center of the limiting tube (213) as the reference, and the two ends of the connecting frame (214) are fixedly connected to the inner wall of the outer tube (1). The surface of the honeycomb tube (212) is provided with hexagonal vertical openings distributed in an array.

5. The support structure of an alloy biomimetic bone according to claim 2, characterized in that: The connecting plates (221) are symmetrically installed on both sides of the top of the outer tube (1), and the connecting bolts (222) are connected to the inner wall of the limiting tube (213) through a threaded structure.

6. The support structure of an alloy biomimetic bone according to claim 2, characterized in that: The connecting plate (221) is connected to the outer tube (1) by two connecting bolts (222). The outer arc of the connecting plate (221) is consistent with the outer arc of the outer side of the outer tube (1). The end of the connecting bolt (222) is fitted with the outer side of the connecting plate (221). The absorption plate (223) and the screw (224) are made of bone guiding material.

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