58 results about "Stress shielding" patented technology

The invention provides an interbody fusion cage. The interbody fusion cage comprises an upper vertebral plate, a lower vertebral plate and a shell, the driving device comprises a driving rod, and a bevel gear pair is arranged on one side of the driving rod; the transmission bevel gear is meshed with the bevel gear pair; the top of the supporting rod is provided with a first spherical hinge, the first spherical hinge is embedded into the spherical seat of the upper vertebral plate, the outer surface of the supporting rod is provided with a transmission thread, and the bottom of the supporting rod is provided with a second spherical hinge; the sleeve is arranged on the outer surface of the supporting rod in a sleeving mode, and the top of the flexible base abuts against the second spherical hinge. According to the technical scheme, the stress shielding effect in the implanting process of the interbody fusion cage can be effectively achieved, and the technical problem that the interbody fusion cage is attached to the physiological curvature can be effectively solved.

The present application relates to femoral stem prosthesis, specifically provides a femoral stem prosthesis with twisted trabecular structure, aims to solve the problem that although the existing femoral stem prosthesis has trabecular porous structure to promote bone growth, but still due to the high material elastic modulus and stress concentration inside the pore, leading to stress shielding effect and trabecular fracture, so it is difficult to effectively prevent long-term loosening of the prosthesis. For this purpose, a femoral stem prosthesis with twisted trabecular structure of the present application comprises a trabecular structure unit arranged on the surface layer of the prosthesis, the shape of the trabecular structure unit is a space net structure, the space net structure is provided with pores, the pores can accommodate new bone, and the space net structure is twisted from the inside of the prosthesis to the surface layer of the prosthesis. The present application introduces the mechanical regulation effect brought by structure twisting by arranging the space net trabecular structure which is twisted continuously from inside to outside on the surface layer of the prosthesis, on the basis of ensuring that the pores can be used for new bone growth and realizing bone-prosthesis biological fixation.

The invention discloses a bionic type tibia intramedullary nail and a matched instrument thereof, and relates to the technical field of medical instruments, and the bionic type tibia intramedullary nail comprises an intramedullary nail body; the intramedullary nail body comprises an intramedullary nail near end, an intramedullary nail middle section and an intramedullary nail far end, the intramedullary nail middle section is inserted into the intramedullary nail near end in a threaded mode, and the intramedullary nail far end is inserted into the intramedullary nail middle section in a threaded mode; according to the intramedullary nail, through the sectional type thread inserting design of the intramedullary nail near end, the intramedullary nail middle section and the intramedullary nail far end and the matching of the variable pitch gradient structures of the near end thread, the middle section thread and the far end thread, precise adaptation of the intramedullary nail and the anatomical form of the tibia marrow cavity is achieved, and a gradient mechanical buffering system is formed by the near end thread, the middle section thread and the far end thread; the problem of stress shielding caused by the fact that rigidity of a traditional intramedullary nail is not matched with a skeleton is effectively solved, meanwhile, the variable-pitch threads and the thread depth gradual change design are adopted, damage to an endosteum during nail placement is reduced, uniform stress conduction is achieved, local stress concentration is avoided, and the risks of osteoporosis, delayed fracture healing and secondary fracture are reduced.

The invention relates to the technical field of medical instruments, in particular to a hip joint thighbone prosthesis and a hip joint thighbone prosthesis manufacturing method. The hip joint femoral prosthesis comprises a spherical prosthesis main body and a connecting part, the spherical prosthesis main body is provided with an opening, one end of the connecting part extends into the spherical prosthesis main body and is connected with the spherical prosthesis main body, and the other end of the connecting part extends out of the opening; wherein the inner wall of the spherical prosthesis main body is provided with a functional gradient porous structure, and the porosity and the pore diameter of the functional gradient porous structure are gradually increased from the inner wall of the spherical prosthesis main body to the center direction of the spherical prosthesis main body in the preset direction. According to the hip joint thighbone prosthesis, the service life of a surface replacement type hip joint thighbone prosthesis can be prolonged, the problem that an existing biological fixation type prosthesis is loosened and loses efficacy due to stress shielding is solved, and the risk that a porous structure is prone to falling off from a base body in a long-term load environment is reduced.

The utility model relates to the intervertebral fusion cage technical field discloses a kind of anti-drop intervertebral fusion cage. To solve the stress shielding problem in the actual use of conventional intervertebral fusion cage in prior art, and porosity is lower, fusion rate is low after operation;Lack of bone integration channel, the technical problem of low fusion rate after operation. The utility model includes support frame, at least two bone graft channels are arranged on support frame, to fill bone induction material and promote bone growth;Support frame end is provided with clamping groove;Support frame includes edge support part, and edge support part is connected by porous structure between;The porosity of porous structure gradually changes from small to large by the direction close to far from vertebral body, and presents gradient distribution. The utility model effectively balances the problem of insufficient porous structure strength, and the problem of too large solid structure quality, and the porosity of porous structure is large, has more bone integration channel, is conducive to the growth of bone cell, and can effectively improve bone growth rate.

The invention discloses an optimization method, device and equipment of a biodegradable bone fracture plate and a storage medium, and is applied to the technical field of medical instruments, and the method comprises the following steps: constructing a finite element model of femoral shaft fracture; in the finite element model, applying a dynamic biomechanical load simulating a human body walking cycle; the stress level of the bone fracture plate and the displacement level of the fixed thighbone are used as optimization targets, and multi-dimensional parameters of the bone fracture plate are optimized; delimiting a safety area of the bone fracture plate according to the optimized bone fracture plate design parameters; according to the method, the technical steps of base material type selection and process optimization, finite element model construction and dynamic load application, multi-dimensional parameter optimization, safety area demarcation and personalized adaptation and the like are organically combined; the technical problems of secondary operation, stress shielding, high biological safety risk, poor adaptability, high engineering difficulty and the like of a traditional bone fracture plate are effectively solved.

The utility model relates to a kind of 3D printing's embedded titanium-magnesium alloy bone repair body, belong to bone repair body field, solve the existing single titanium alloy bone repair body elastic modulus and human skeleton difference in prior art is larger, it is prone to stress shielding effect, and the single magnesium alloy bone repair body mechanical strength and corrosion resistance is poor.The utility model includes titanium alloy cylinder, magnesium alloy structure and inlay structure, magnesium alloy structure is connected with titanium alloy cylinder by inlay structure;Multiple evenly distributed inlay grooves are equipped along the circumference of titanium alloy cylinder, both sides of inlay groove are equipped with directional slide, magnesium alloy structure is arranged in inlay groove, both sides of magnesium alloy structure are equipped with limit protrusion, limit protrusion and directional slide sliding connection.The utility model inlay magnesium alloy structure in titanium alloy cylinder, rely on titanium alloy cylinder to provide mechanical support, magnesium alloy structure gradually degrades to promote bone growth, the defect of single material is effectively avoided by the combination of both.

The invention belongs to the technical field of oral implant restoration, and particularly relates to a porous implant based on a TPMS bionic structure and a model construction method thereof.The porous implant comprises a base body, the base body is provided with an upper entity section, a porous section and a lower entity section, the surface of the upper entity section and the surface of the lower entity section are of threaded structures, and the porous section and the upper entity section are of threaded structures. The surface of the porous section is of a porous extremely-small curved surface structure, the interior of the porous section is of a solid structure, the porous structure and the solid structure are integrally formed, and the porous section is located below the bone level. The porous implant prepared by the method disclosed by the invention can effectively relieve the'stress shielding 'effect of a traditional compact implant so as to improve the interfacial osseointegration performance and the long-term stability of implantation of the implant.

This invention provides an interbody fusion device and its preparation method, comprising: metal endplates symmetrically arranged vertically, with a mesh structure on the surface of the metal endplates, the mesh structure including: a bone mesh on the outer surface of the metal endplates, a coupling mesh on the inner surface of the metal endplates, a metal separator layer fixedly disposed between the bone mesh and the coupling mesh, and a linkage locking seat disposed on the inner surface of the metal endplates; a cable passing through the linkage locking seat on the inner surface of the aforementioned metal endplates; a polymer matrix fixed between the aforementioned pair of metal endplates by the aforementioned shear-resistant structure; a bone graft cavity, which is a cavity jointly formed by the metal endplates and the polymer matrix; and a positioning hole penetrating the aforementioned polymer matrix. This application addresses the technical problems that, with prolonged implantation time, complications such as displacement, coating peeling, settlement, stress shielding, bone resorption in adjacent areas, and delayed inflammatory reactions often occur.

The invention discloses a porous scaffold SLM preparation method and device based on machine learning, and belongs to the technical field of additive manufacturing. The method comprises the following steps: firstly, designing a composite lattice porous structure consisting of inner-layer simple cubic cells and outer-layer body-centered cubic cells, wherein the inner-layer simple cubic cells and the outer-layer body-centered cubic cells are directly connected through nodes; then, a Latin hypercube sampling design test scheme is adopted, and initial small sample data of the selective laser melting process are obtained; then, a regression synthesis minority class oversampling technology is introduced to carry out enhancement processing on the data set; on the basis, establishing a kernel extreme learning machine prediction model optimized by a swarm intelligence algorithm; and finally, reversely solving optimal process parameters based on the target performance and completing preparation. Through the composite structure design, the stress shielding effect is effectively relieved, the problems of high experiment cost, less sample data and low prediction precision in traditional process optimization are solved, and efficient and accurate customized manufacturing of the high-performance medical CoCrMo implant is achieved.

The dynamic implant fixation plate and implant configured to accept the disclosed fixation plate can, in some aspects, provide a means of fixing an implant relative one or more planes while allowing motion relative to one or more planes. The use of the disclosed fixation plate and corresponding implant can reduce the occurrence of stress shielding and permit enhanced loading of the implant site.

This invention discloses a novel adjustable intramedullary nail, comprising a hollow main nail, a proximal end of the nail, and a main body of the nail, which are integrally formed. The diameter of the proximal end of the nail is larger than that of the main body. Multiple through-holes for dynamic screws are provided at the proximal end of the nail. An adjustment hole is provided on the main body of the nail, away from the proximal end. A dynamic bone screw is installed in each of the dynamic screw holes and can move axially along the holes. A tail cap is installed on the proximal side of the nail, and an elastomer is placed between the tail cap and the dynamic bone screw. An absorbable washer is placed distal to the dynamic bone screw to support it. An adjustment device for adjusting the stress at the fracture ends is provided on the main body of the nail, which can adjust the stress at the fracture ends according to the specific fracture conditions, avoid stress shielding at the fracture ends, accelerate fracture healing, reduce delayed healing and nonunion, and decrease the incidence of refracture after removal of the intramedullary nail.

The present invention relates to a method for interactively designing via an implant design platform an artificial joint implant for hip arthroplasty and corresponding broaching and osteotomy guide apparatuses. The proposed implant design platform reconstructs the anatomy of the patient's pelvic and femoral bones in a 3D digital environment, and accordingly develops a patient-specific femoral implant stem as well as patient-specific surgical tools broach / rasp, osteotomy guide) used in total 10 hip arthroplasty. The patient-specific femoral implant stem developed may be optimized to ensure optimum mechanical performance for the patient, employing complex internal lattices that minimize stress shielding and advanced trabecular surfaces to promote osseointegration.

The invention relates to a talus prosthesis and a preparation method thereof. The talus prosthesis comprises articular surface layers, a main body frame and a bone cement filling body, the articular surface layers are arranged on the main body frame, the main body frame is of a porous structure and is provided with beams which are vertically and horizontally crossed among the multiple articular surface layers, and the porosity of the main body frame in a high stress concentration area is smaller than that of the main body frame in a low stress area. The diameter of a beam of the main body frame in a high stress concentration area is larger than that of a beam of the main body frame in a low stress concentration area, and the main body frame and the articular surface layer are formed through 3D printing. The main body frame is filled with the bone cement filling body. According to the talus prosthesis, the density in a high stress concentration area is large, the density in a low stress concentration area is small, the mechanical adaptability of the talus prosthesis is improved, the weight of the talus prosthesis is reduced, the light weight of the talus prosthesis is achieved, and the expected remarkable effect of reducing stress shielding is achieved; the bottlenecks of poor mechanical suitability and limited process of the talus prosthesis in the related technology are broken through, and the risks of long-term loosening and abrasion can be reduced.

The invention belongs to the technical field of computer aided design, and provides a generative adversarial network-based personalized dental restoration intelligent design method, which comprises the following steps of: marking a difference set part connected with a temporary restoration region in a wearing three-dimensional model as a carrying model; carrying out combined Boolean operation on the temporary restoration body area and the undertaking model to obtain a combined part, and recording the combined part as a stress model; identifying a stress shielding area on the stress model according to the stress nephogram; performing elastic correction on the stress shielding area of the temporary restoration area to obtain a three-dimensional model of the dental restoration; the wall thickness of the strong sub-region with an unstable stress path caused by overall stress shielding is corrected through the wall thickness difference value of the corresponding elastic correction weak sub-region, the problem that overall stress shielding is converted into a local stress peak value is reduced, stress transmission is uniform, and the problem that stability fluctuates due to the fact that the stress path changes along with time is solved.

The application discloses a degradable spinal fusion cage with a bone inductive microporous structure and belongs to the technical field of orthopedic implant medical devices. The fusion cage is integrally made of a degradable polymer composite material, the inside of the main body is provided with a bionic gradient microporous structure which is interconnected, and the surface of the fusion cage is provided with an active coating layer with a slow-release function. The mechanical property of the product is adapted to the physiological bearing requirement of the spine, the product can be steadily degraded along with the bone tissue regeneration process after being implanted into the human body, can effectively guide the bone tissue and microvessels to grow in, and can improve the intervertebral fusion efficiency; meanwhile, the problems of stress shielding, postoperative infection and the need for secondary removal surgery existing in traditional metal implants are solved, the product has good biocompatibility, the structure is reasonable, the preparation process is simple, and the product is suitable for clinical intervertebral fusion surgery of the spine.

The utility model discloses a personalized root type implant. Comprising an implant body, a central screw hole is formed in the upper end of the implant body, a Morse taper hole is formed in the upper portion of the central screw hole, and an inner hexagonal base hole is formed in the upper end of the Morse taper hole; the implant made of Ti-Ta alloy is close to a bone tissue of a human body, so that the stress shielding effect is effectively reduced; meanwhile, due to the introduction of tantalum, the corrosion resistance and bone combining capacity of the material are improved; a 3D printing technology is adopted to realize that the implant is completely matched with a tooth extraction socket in shape, and bone holes and convex blocks of a bionic bone trabecula porous structure are constructed on the surface of the interior part of a bone, so that the implant is convenient to mount in a tooth socket; the central screw hole and the Morse taper hole are designed at the upper end of the implant, so that the false tooth is conveniently mounted and connected, and the inner hexagonal base hole is formed at the upper end of the implant, so that the connection stability of the false tooth is conveniently improved, and the false tooth is prevented from rotating and falling off.

A computerized system and method (123A-C) for the automated design and additive manufacturing of patient-specific orthopedic reconstructions (600R). The method integrates anatomically tagged medical scans, oriented relative to X, Y, and Z axes, with machine-learning models trained on aggregate historical biomechanical outcomes to generate optimized implant geometries. The system calculates an Osseointegration Probability Score (OPS) and a Comprehensive Prognostic Success Score (CPSS) to dynamically modify internal porous lattice densities, minimizing stress shielding while maximizing load-bearing capacity. The manufacturing process simultaneously generates internal longitudinal conduits for post-operative vascularization and computationally optimized structural anchors (bulges, serrations, and wings) for precise anatomical fixation. By linking real-time biomechanical simulation with prognostic clinical data, the invention provides a high-fidelity manufacturing blueprint that improves long-term implant stability and reduces periprosthetic complications.

The invention discloses a 3D printing bone grafting bin-free interbody fusion cage which is characterized in that the 3D printing bone grafting bin-free interbody fusion cage comprises a supporting structure and a porous structure, the porous structure and the supporting structure are integrally printed and formed, the porous structure is constructed through connecting rods which are mutually connected in a space, and the porous structure is filled and stacked in the supporting structure; the support structure includes an edge. A through hole is formed in a gap between the connecting rods, and the through hole of the supporting structure is in an irregular shape. The 3D printing bone grafting bin-free porous interbody fusion cage is of a hexahedron structure, and the contour of the side wall of the porous structure achieves circular arc transition through fillets. The problems that a traditional interbody fusion cage is too high in elasticity modulus and has a stress shielding effect can be solved, the elasticity modulus of the 3D printing bone grafting bin-free porous interbody fusion cage is matched with the elasticity modulus of a human body bone of a patient part, bone grafting is not needed, and a good bone ingrowth effect can be achieved.

The invention relates to the technical field of biomedical materials, in particular to a preparation method of a hyperelastic low-modulus antibacterial bone implant, which comprises the following steps: firstly, designing a porous structure model with specific pore parameters based on a three-period minimal curved surface (Gyandroid), then uniformly mixing NiTi alloy powder with a small amount of Ag powder, and preparing a porous structure model; and finally, carrying out integrated forming by adopting optimized laser powder bed melting process parameters under a protective atmosphere. The prepared bone implant has the low elastic modulus of 1.5-3.5 GPa, can be well matched with human bones, and remarkably reduces the stress shielding effect; and meanwhile, the superelasticity of the NiTi alloy is reserved, and the alloy has the capability of recoverable deformation under the strain of 4%. Besides, by adding the Ag element, the antibacterial rates of the implant to staphylococcus aureus and escherichia coli exceed 90%, the material is endowed with excellent antibacterial performance on the premise of not excessively changing the matrix tissue, and the clinical safety and service reliability of the implant are effectively improved.

The invention discloses a carbon-based composite material skull connecting screen plate and a preparation method thereof, and belongs to the technical field of biomedical materials. The preparation method comprises the following steps: machining a carbon-based composite material into a skull connecting screen substrate, washing and drying the substrate, firstly performing chemical vapor deposition on a carbon or / and silicon carbide substrate, then performing physical vapor deposition on a metal film layer, and converting the metal film layer into a metal oxide layer by adopting an electrochemical oxidation method, thereby obtaining the carbon-based composite material skull connecting screen. The connecting screen plate can avoid the defects of imaging artifacts and stress shielding existing in metal materials, can enhance the adhesion, proliferation and differentiation capacity of bone cells, and can improve the biocompatibility, wear resistance and mechanical property of the bone cells at the same time.

The invention discloses porous bone cement and a preparation method thereof, and belongs to the technical field of biomedical materials. The porous bone cement is prepared from three components, namely bone cement powder, liquid A and liquid B, according to the invention, the magnesium powder and the water of the liquid B synchronously generate gas to form pores, so that an internally communicated porous structure (the pore diameter is 50-1000 microns) is formed, the elastic modulus (1398-1656 MPa) is reduced to avoid stress shielding, and the mechanical requirement that the compression strength is greater than or equal to 70 MPa is ensured; the liquid B can integrate the functions of antibiosis, osseointegration promotion and the like, and the developing agent is suitable for postoperative monitoring, has good biocompatibility and is suitable for bone defect repair and other orthopedic surgeries.

The utility model relates to the technical field of butt welding elbows, in particular to a high-pressure-resistance butt welding elbow which comprises an elbow body, a plurality of flow guide fins are arranged on the inner side of the elbow body, a stress protection sleeve is arranged on the outer side of the elbow body, and a plurality of bionic reinforcing ribs are arranged on the inner side of the stress protection sleeve. The rib height h of the bionic reinforcing ribs and the reference wall thickness t0 of the elbow body meet the condition that h is equal to (0.1-0.15) t0, the ribs of the bionic reinforcing ribs are distributed according to logarithmic spiral lines, the trend of the bionic reinforcing ribs and the tangential direction of the center line of the elbow body form an included angle of 30-45 degrees, and the wall thickness of the elbow body is distributed in a sine square manner along the tangential angle theta of the center line. The flow guide fins are matched with the bionic reinforcing ribs distributed in a logarithmic spiral mode to form a composite flow guide field, the medium flow resistance is reduced by 15%-20%, vortex generation is effectively restrained, the tangential included angle design of the ribs is 30-45 degrees, fluid shear force and the trend of the reinforcing ribs form optimal mechanical coupling, and turbulent flow energy loss is reduced.

The invention discloses a 3D printing porous interbody fusion cage which comprises an upper end face, a lower end face, a first side face, a second side face and an internal structure. The upper end face comprises an upper end face support and an upper end face porous structure; the lower end face comprises a lower end face support and a lower end face porous structure; the first side face and the second side face are oppositely arranged and are connected to the front end and the rear end of the 3D printing porous interbody fusion cage, and an instrument groove is formed in the rear end of the 3D printing porous interbody fusion cage; the internal structure is filled with the internal porous structure, and the upper end face porous structure, the lower end face porous structure and the internal porous structure are all formed by filling and stacking connecting rods. According to the 3D printing porous interbody fusion cage, the problems that a traditional interbody fusion cage is too high in elasticity modulus and has a stress shielding effect can be solved, the elasticity modulus of the 3D printing porous interbody fusion cage is matched with the elasticity modulus of a human body bone of a patient part, and therefore a good bone ingrowth effect can be achieved without bone grafting or a small amount of bone grafting.

A radiolucent fixation system is provided for orthopedic and translational applications, comprising implantable thermoplastic plates, rods, and fasteners for stabilizing fractures or bone defects while enabling clear diagnostic imaging. The fasteners include a rigid central component and deformable malleable grip segments that are selectively welded or staked using an energy-producing handheld device. In some embodiments, blind-end rivet mechanisms are used to secure fixation where access to the distal cortex is limited. The radiolucent materials reduce imaging artifacts, enable repeated longitudinal studies in preclinical research, and avoid complications associated with metal implants such as stress shielding and imaging interference. Methods for device implantation, imaging, and fabrication using additive and subtractive manufacturing are also described.

The invention provides a preparation method, device and equipment of a percutaneous channel internal fixing screw, a medium and a product. The method comprises the following steps: acquiring three-dimensional image data of a target object, wherein the three-dimensional image data comprises a region of interest of a to-be-implanted internal fixation screw; recognizing a screw implantation channel based on the three-dimensional image data, and recognizing bone mineral density data corresponding to the screw implantation channel; based on the bone mineral density data of the screw implantation channel and a pre-constructed screw preparation parameter selection model, determining internal fixation screw parameters suitable for the target object; and screw printing processing is carried out based on the internal fixation screw parameters, and the internal fixation screw suitable for the target object is obtained. According to the technical scheme, the adaptation degree of the internal fixation screw and the bone is improved, the stress shielding rate is effectively reduced, and individualized adaptation of the internal fixation screw is achieved.

The invention discloses a bionic bone implant for a 4D printed porous NiTi alloy spine, and relates to the technical field of bionic bone implants.The bionic bone implant comprises an implant body, and the implant body is integrally formed by porous NiTi alloy containing microelements through the 4D printing technology; after the implant main body is implanted into a human body, the shape or porosity of the implant main body can be controllably changed under the stimulation of the body temperature of 35-42 DEG C, the shape recovery rate is larger than or equal to 90%, and the porosity adjusting range is + / -5%-10%. According to the bionic bone implant for the 4D printed porous NiTi alloy spine, the porosity and the aperture are regulated and controlled, and a gradient porous structure is designed in the mechanical conduction direction of the spine, so that the elastic modulus is reduced, the elastic modulus is highly matched with the mechanical property of cancellous bones of the spine of a human body, the stress shielding effect is effectively eliminated, and the risk of surrounding bone atrophy is reduced; meanwhile, the shape memory effect of the NiTi alloy can realize controllable adjustment of shape / porosity under the stimulation of body temperature, the shape memory effect is adaptive to the physiological curvature change of the post-operation spine, and the long-term stability of the implant is improved.

The application discloses an intramedullary fixation device for femoral intertrochanteric fracture, which comprises a nail body, a cavity extending along a longitudinal axis from a proximal end to a distal end is arranged in the nail body, a force carrier system is arranged on the nail body to create a dynamic control at a human femoral neck and femoral head to eliminate stress shielding and realize controllable transverse dynamic force, the force carrier system comprises a movable assembly arranged at the proximal end of the nail body and at least one sliding piece arranged at the distal end of the nail body, the movable assembly serves as a main power source of the transverse dynamic force while playing a connecting and fixing role on the femoral neck and femoral head, and the sliding piece is used for the movable connection between the distal end of the nail body and the femoral body. The application can decompose the stress concentration and stress shielding of the locking nail on the intramedullary nail, enhances the bending strength, and realizes the stability of biomechanics. The proximal end of the intramedullary nail is coated with titanium, has a high friction coefficient, provides initial stability and long-term bone ingrowth effect, and can effectively reduce the occurrence of broken nail, bone nonunion and delayed bone healing.

This invention discloses a locking bone plate, its preparation equipment, and a preparation method. The locking bone plate includes a bone plate body, a multi-directional micro-motion locking component, a gradient bioactive coating, a stress buffer structure, and a bone-inducing positioning component. The surface of the bone plate body has an anatomically conforming curved surface, with locking holes and micro-motion holes arranged alternately along its length, and a stress buffer structure in the middle. The multi-directional micro-motion locking component is assembled in the micro-motion holes, enabling multi-directional angle adjustment and axial micro-motion of the locking screws. The gradient bioactive coating fully covers the surface of the bone plate body and the walls of each hole, employing a three-layer structure. The bone-inducing positioning component is located on the bone side of the bone plate body that conforms to the bone, used to assist fracture reduction and induce bone cell growth. This invention achieves an organic combination of rigid fixation and multi-directional micro-motion, enhancing bioactivity and bone integration capabilities. It can adapt to complex fracture morphologies, reduce stress shielding, accelerate bone healing, and is safe to use and easy to assemble, possessing extremely high clinical application value.