344 results about "Bone implant" patented technology

A high-performance near-pure zinc alloy, a preparation method therefor and a use thereof, relating to the technical field of zinc alloys. The alloy component is that the content of Zn is greater than or equal to 99.5%, and the remaining trace alloy elements include at least two of the following 14 elements: Mg, Mn, Li, Cu, Ag, Ca, Sr, Fe, Zr, Ti, Al, C, Ga, and Si. The alloy has the yield strength ≥ 250 MPa, the tensile strength ≥ 320 MPa, the elongation ≥ 25%, the mechanical property change during one year of room-temperature storage ≤ 5%, the maximum bending force ≥ 2 kN, the stress corrosion sensitivity factor ≤ 15%, the size of corrosion pits after 60 days of immersion ≤ 15 μm, and the standard deviation of the size of corrosion pits ≤ 3 μm. The alloy is suitable for the preparation of biodegradable stents, bone implant devices, medical staplers or anastomotic nails for intestines, blood vessels or nerves, vascular clamps, guided bone or tissue regeneration membranes, heart valve protheses, dura mater repair membranes, soluble bridge plugs and fracturing balls for oil drilling, zinc alloy die castings, electroplated zinc materials, building zinc materials, battery-grade zinc, printing-grade zinc, and zinc-based brazing alloys.

The invention discloses a cranio-maxillofacial dissimilar metal bone implant with an antibacterial property and a preparation method thereof, and relates to the technical field of medical implant prostheses, the preparation method comprises the following steps: step 1, preparing a nano-silver-antibacterial peptide GL13K composite peptide solution with the antibacterial property; 2, based on the selective laser melting technology, titanium alloy powder is prepared into a porous framework; 3, melting zinc powder, and filling pores of the porous skeleton with the molten zinc powder to obtain a semi-finished heterogeneous metal bone implant; step 4, depositing the nano-silver-antibacterial peptide GL13K composite peptide solution prepared in the step 1 on the surface of the semi-finished heterogeneous metal bone implant prepared in the step 3 through a pulse electrodeposition method to obtain a finished heterogeneous metal bone implant; the prepared finished heterogeneous metal bone implant has a remarkable antibacterial effect, the postoperative infection risk can be reduced, and the nano-silver-antibacterial peptide GL13K composite peptide can further promote osteoblast attachment and proliferation and accelerate the bone healing process.

A bone insert includes a cap having a convex top surface, an elongated stem, and a barrier between the cap and the stem. The stem of the bone insert is inserted into a hole formed in a host bone until the barrier is pressed against the exposed bone. The bone implant can be placed against a small focus contact point on the cap. Liquid cement can be injected into a space volume between the host bone and a bone implant. The cap can be made of a material and / or have surface features that create a strong bond with the cement when the liquid cement cures. The stem can be made of a material and / or have bone ingrowth surface features that create a strong bond with the bone.

The invention provides a directional solidification preparation method of a degradable high-hardness zinc alloy material. The preparation method of the zinc alloy material comprises the machining processes of vacuum induction melting, vacuum directional solidification melting and the like, through the preparation method, growth of Zn + Mg2Zn11 trilobal eutectic and Zn + MgZn2 spiral eutectic is regulated and controlled, microscopic structures are arranged in the specific direction, fine and uniform structure morphology is formed, and the corrosion resistance and the mechanical property of the alloy are improved. The Zn-Mg series alloy prepared by the preparation method disclosed by the invention shows excellent microhardness (181.19 to 243.10 HV). Besides, the corrosion rate of the ideal degradable bone implant is within the range of 0.1 mm / y to 0.5 mm / y, and the corrosion rate of the degradable medical Zn-Mg alloy bone implant material is within the range of 0.0316 mm / y to 0.2280 mm / y, so that the requirement on the corrosion rate in the bone repair process is met; and after the Cu element is added on the basis of Zn-3% Mg, the microhardness of the Zn-3% Mg-Cu-Cu alloy material is improved to about 200HV, and the advantages in the aspect of mechanical support are improved.

A humeral implant is provided. The implant includes a humeral stem including a plurality of fins. At least one fin comprises a serrated bottom edge. A radial distance between an inner bottom edge of the at least one fin and a centerline of the humeral implant increases along a distal length of extension of the at least one fin. At least the serrated bottom edge of the at least one fin is configured to cut into and compact bone of the metaphysis of a humerus toward relatively denser cancellous bone of a peripheral portion of the humerus when press-fit therein, thereby providing sufficient press-fitting for cementless fixation of the humeral stem into the humerus. Related kits and methods are also provided.

The invention discloses a multifunctional coating capable of forming a long-term stable endogenous electric field to promote antibiosis, and a preparation method and application thereof, and belongs to the technical field of biological functional modification. According to the coating, through the elaborately designed Ta / Ag heterostructure, long-term stable generation of an endogenous electric field is achieved, the antibacterial performance is enhanced, osseointegration is promoted, and the problem of drug resistance is avoided; the coating does not need external electrical stimulation, so that the operation process is simplified, and the clinical application risk is reduced; due to the Ta material, the osseointegration capacity is improved, and Ag has broad-spectrum and efficient antibacterial performance. The TC4-Ta / Ag group has excellent charge storage capacity and a stable electric field, and the long-term osseointegration effect is remarkably improved; according to the preparation method of the coating, the coating which is stable in structure and not prone to falling off can be obtained, the long-term stable antibacterial performance is kept, the coating has wide application prospects in the field of titanium alloy bone implants, a new solution is provided for orthopedic surgery and implant treatment, and the treatment effect and life quality of patients are improved.

The invention discloses a method and a system for testing corrosion fatigue of a bone implantation device under a pathological condition, and relates to the technical field of orthopedic medical device evaluation, and the method comprises the following steps: constructing a dynamic load spectrum database covering physiological and pathological states; in-vitro reproduction of a dynamic mechanical environment borne by the bone implantation instrument in physiological and pathological states is completed through a multi-axis servo system; and acquiring service state data of the bone implantation instrument, and analyzing the service state data of the bone implantation instrument to obtain coupling experiment data. According to the invention, the defects of single load mode and environment simulation distortion in the traditional test method are overcome, high-fidelity simulation and comprehensive monitoring of the corrosion fatigue behavior of the bone implantation device under the pathological condition are realized, the consistency of the in-vitro test result and the in-vivo actual service performance is improved, and the application prospect is wide. And a scientific and unified evaluation basis is provided for material screening, structure optimization and service life evaluation of different types of bone implantation instruments.

Threaded bone implants, such as pedicle screws, are provided with an elongate body comprising a first portion, a second portion distal to the first portion, and a third portion distal to the second portion. The first, second and third portions may be provided with different features that correspond to first, second and third anatomical regions of interest in a vertebrae or other bone segment(s). The bone implants, systems, methods of manufacture, and methods of use disclosed herein may be used for the stabilization, fixation and / or fusion of the sacroiliac joint, the spine and or other bone segments.

The invention relates to the technical field of bone implant measuring devices, and discloses a device for measuring the push-out force of a bone implant, the device comprises a base, a bone sample and an implant sample, the upper surface of the base is fixedly connected with a plurality of supporting columns, the top ends of the supporting columns are jointly and fixedly connected with a detection table, and the detection table is fixedly connected with the bone sample. A first electric push rod is fixedly connected to the upper surface of the base, a measuring assembly is installed on the surface of the detection table, the driving end of a second electric push rod is fixedly connected with a force sensor, and the lower surface of a limiting plate is fixedly connected with the upper surface of the detection table. The height of the fixing layer can be adjusted through the first electric push rod, and when the height of the fixing layer changes, the fixing layer can be flexibly switched between an axial push-out test mode and a shear push-out test mode, so that the axial push-out test and the shear push-out test can be performed on the bone implant without carrying and repeatedly fixing a sample; the device improves the measurement efficiency and flexibility, is simple in structure, and is convenient to use.

A patella impaction device includes a first clamp configured to be pressed along a pressure axis and onto a dome-shaped surface of a patella implant to be connected to a resected patella. The first clamp includes a shell-shaped clamping element mounted on a holding structure of the first clamp in a floating manner and allowing the clamping element to move at least along one axis of movement within a plane extending perpendicular to the pressure axis. The patella impaction device can be a component of a patella preparation set.

The invention relates to the technical field of bone implants for minimally invasive surgery, and particularly discloses an implant for percutaneous minimally invasive thoracolumbar vertebral fracture, which comprises a vertebral body forming body, the vertebral body forming body comprises a vertebral body forming body head and a plurality of blade parts arranged at the rear end of the vertebral body forming body head in a surrounding manner, the vertebral body forming body head is provided with a needle guide hole penetrating along the axial direction, and the needle guide hole is communicated with the blade parts; a containing cavity is defined by the blade parts; the front end of the threaded guide rod and the head of the cone forming body are integrally formed, the needle guide hole penetrates through the threaded guide rod in the axial direction, and the rear end of the threaded guide rod extends out of the containing cavity; the pedicle screw is provided with a threaded hole penetrating in the axial direction, the threaded hole is in threaded connection with the threaded guide rod, the pedicle screw comprises a screw head and a threaded part arranged at the rear end of the screw head, and the screw head is arranged in the containing cavity and expands the blade part. According to the implant for the percutaneous minimally invasive thoracolumbar vertebral fracture, surgical wounds are reduced, the vertebral restoration effect is good, the stability of a vertebral formed body is guaranteed, and the surgical time can be saved.

The invention discloses a bionic heterogeneous composite structure bone implant and a preparation method thereof, and relates to the technical field of medical implants.The bionic heterogeneous composite structure bone implant comprises an inner-layer cross-shaped structure, a middle-layer negative Poisson's ratio structure and an outer-layer honeycomb structure, and the cross-shaped structure, the negative Poisson's ratio structure and the honeycomb structure jointly form a bionic composite structure; and immersing the bionic composite structure subjected to double-network crosslinking into a drug-containing solution for post-treatment and drug loading to obtain the bionic heterogeneous composite structure. According to the invention, bionic adaptation and intelligent optimization of mechanical properties are realized, and the stress shielding problem is solved; according to the invention, osseointegration and vascularization processes are obviously accelerated and enhanced, and leap-type improvement of biological activity is realized; a novel intelligent treatment mode based on in-vivo microenvironment response is developed, and on-demand and accurate drug delivery is achieved.

The invention provides a ZIF-8 gene-loaded hydrogel bone repair scaffold as well as a preparation method and application thereof, and belongs to the technical field of biomedical material manufacturing. The bone repair scaffold of the ZIF-8 gene-loaded hydrogel comprises a porous base material, hydrogel and ZIF-8 particles. The porous base material is a bone implant material; the hydrogel is sodium alginate hydrogel, the surface of the porous base material is coated with the hydrogel, and pores of the porous base material are filled with the hydrogel; the ZIF-8 particles are distributed in the hydrogel, the genes are loaded in the ZIF-8 particles, the genes are osteogenesis promoting genes, and the bone repair scaffold has multiple functions of resisting bacteria, promoting osseointegration, promoting osteogenesis and the like, so that the clinical application requirements of the bone repair scaffold are better met.

Porous-based bone implants with the integration of Triply Periodic Minimal Surface, TPMS, porous architectures are designed to support the growth and proliferation of bone tissue, bone marrow, and capillaries. This disclosure intends to reduce the adverse effect of conventional implants such as bone resorption over time, which is called the “stress shielding effect”. The “stress shielding effect” is caused by the mismatch between the implant and natural bone stiffness. Triply Periodic Minimal Surface, TPMS, porous architectures exhibit interconnected pore features. The interconnection of the porous network allows the TPMS to have a higher permeability than that of other porous structures, leading to more favorable nutrient transport. In addition, many physical characteristics of the TPMS structures including surface-to-volume ratio, pore size, elastic modulus, and fluid behaviors can be controlled precisely through mathematical manipulation. As a result, TPMS-based implants could be physical features, which are vaned based on different bone regions. In other words, the medical implants may exhibit non-uniform or gradient physical features, which can match the characteristic of trabecular and cortical bones. Therefore, TPMS-based implants could adjust the features to mimic neighboring bone regions. As a result, we can achieve medical implants, which have superior mechanical and biological responses, resulting in optimal cell growth and better medical treatment.

Bone implants and stabilizing rod coupling assemblies to secure a stabilizing rod relative to the bone implant. Bone implants may include a radially recessed collet receiving region that includes a proximal end with an undercut ledge configuration that is sized and configured to interface with and couple to a collet of a tulip assembly.

The utility model relates to an artificial dental implant in a planting area with insufficient bone height, which is integrally mounted in an alveolar bone planting hole and comprises an anchor bearing and a connecting column, the upper end of the connecting column is connected with an abutment for mounting a dental crown, and the lower end of the connecting column is vertically fixed at the top of the anchor bearing; the anchor seat sinks into the bottom of the alveolar bone implanting hole, the plane area of the anchor seat is increased compared with that of the connecting column, the anchor seat is provided with a plane bottom surface, the bottom surface is in contact with the bottom wall surface of the alveolar bone implanting hole, and the side surface of the anchor seat is tightly attached to the side wall of the alveolar bone implanting hole; and the space of the alveolar bone implanting hole at the side part of the connecting column is filled with autologous bone powder. The implant has the advantages that 1) the thinner connecting column is matched with the larger anchor seat to form a countersunk head anchor, and the implant is anchored in an alveolar bone by utilizing biological growth, so that the effect of enough stability can be achieved although the embedding depth is low, and the trauma risk of a nerve tube in an operation is solved; and 2) the bottom of the implant provided by the utility model is of a flat bottom structure, so that the occlusion stress is effectively dispersed, and the use risk is solved.

The invention of the gradient porous structured sacral prosthesis and the manufacturing process aims to create an alternative replacement for bone loss in patients who require bone replacement. The gradient porous structured sacral prosthesis consists of an artificial bone fragment, a metal rod, and a set of screws for fixing the fragments. The manufacturing process consists of seven steps: Identifying the position and boundaries of the bone, First-step topology optimization, Second-step topology optimization, Defining the structural pattern and unit cell size, Designing the artificial bone implant, Mechanical performance testing of the implant, and Fabrication of the sacral implant. The devices and processes according to the present invention are clearly sequenced and characterized. Modification or change in the manufacturing sequence or use may reduce the capabilities of the present invention or make it unusable for the purposes of the present invention.

The invention belongs to the technical field of biological materials, and discloses a PEEK bone implant material of a piezoelectric catalysis biological heterojunction and a preparation method of the PEEK bone implant material, the material comprises a PEEK bone implant loaded with the biological heterojunction, the biological heterojunction is composed of BiVOO and a chalcogenide calcium compound in a molar ratio of 1-3, and the chalcogenide calcium compound is calcium sulfide, calcium selenide or calcium telluride; during preparation, the BiVO / CaX biological heterojunction is firstly prepared by a hydrothermal method or an in-situ composite method, then PEEK is sequentially subjected to acetone, ethanol and deionized water cleaning, sulfuric acid ultrasonic treatment for 5-10 minutes and dopamine modification, the biological heterojunction is in contact with the modified PEEK at 4 DEG C for 12 hours to complete loading, and improvement means can be introduced into part of schemes. The material has the acoustic catalytic antibacterial function and the bone repair promoting function, the antibacterial effect can be regulated and controlled through ultrasound, the process is simple, and the reaction condition is mild; the multi-drug-resistant bacterial infection can be dealt with, and the heterojunction loading stability and the material cell compatibility are improved.

An implant system that includes an implant having a base portion, that has a body and at least a portion of which includes a lattice structure, and an upper portion configured to releasably couple with the base portion. The implant system includes at least one first fastener configured to be received and extend at least partially through at least one bore of the base portion, and at least one second fastener configured to be received within a cavity of the base portion. Also disclosed is an implant that includes a body that has various elements configured to facilitate arthrodesis of the subtalar joint and talonavicular joint. The body includes an upper surface that is configured to interface with the tibia of a patient, and a lower surface that is configured to interface with the subtalar joint and / or calcaneus of the patient.

A microcirculation reconstruction bone implant capable of generating internal stress comprises a support shell and a support inner core. The support inner core is sleeved with the support shell, and the support shell and the support inner core form a matched structure. The stent shell is located between the bone tissue and the stent inner core, and the stent shell generates elastic deformation to generate internal stress and applies the internal stress to the surrounding bone tissue when the stent is implanted and loaded; a microcirculation reconstruction passage is also loaded on the stent inner core; by adopting a mode that the stent inner core is matched with the stent shell, the stent inner core is matched with the stent shell to form an elastic effect, so that internal stress can be continuously applied to bone tissues in postoperative application to promote bone growth and integration; and a complex stress environment can be adaptively adjusted, so that the stress compatibility between the implant and a bone tissue is ensured, new intraosseous circulation is established, and the postoperative healing effect after the implant is applied is promoted.

The invention provides a testing device for evaluating the degradation behavior of a degradable bone fixing instrument under complex mechanical loading, and the device can simulate complex mechanical conditions and liquid environment after the degradable bone fixing instrument is implanted into a human body in vitro, and can load pressure and fluid impact force in 1-3 directions at the same time; the temperature can be regulated and controlled to realize degradation at a specific temperature, and a plurality of test samples and degradation liquid can be collected at the same time for characterization analysis due to the multi-flux design, so that the degradation condition of the degradable bone fixation instrument under the complex mechanical loading condition is evaluated. The mechanical loading device is easy and convenient to operate, low in cost, good in universality and expansibility and adjustable in parameter, and the simulation condition is closer to the in-vivo real condition. Compared with a traditional non-mechanical condition, the device can provide a new thought for in-vitro prediction in vivo and short-term prediction of degradation evaluation of the degradable bone implant, and finally facilitates promotion of marketing of the novel degradable bone implant.

The invention relates to the technical field of bone implants, and provides a bone implant with a gradually-changed thread and a dental implant assembly, the bone implant comprises a gradually-changed thread section, the gradually-changed thread section is provided with a gradually-changed thread, and the gradually-changed thread extends from the top end side to the crown end side along the central longitudinal axis of the bone implant. The tapered thread includes a top side, a crown side, and a lateral surface connecting the top side and the crown side, the lateral surface defining a radially outer surface of the tapered thread, the tapered thread extending helically in a direction of the central longitudinal axis. The top side face comprises at least two slope faces, the width ratio of one slope face in the at least two slope faces to the top side face is gradually increased in the extending direction from the top end side to the crown end side, and the slope of the slope face is smaller than that of the other slope faces. According to the implant, bone attachment is easier, the expected mechanical effect is achieved through smaller bone extrusion on the unit area, damage to bone cells and blood vessels is reduced, and the initial stability and the bone combination speed after the implant is implanted are improved.

The invention discloses a preparation method and application of a biomimetic mineralized hydrogel coating with high adhesiveness, and relates to the technical field of bone implant surface modification. The method comprises the following steps: immersing a bone implant subjected to surface pretreatment into a polyvinyl alcohol solution, then carrying out single freezing and thawing cycle, and then carrying out annealing treatment, alternately soaking the annealed bone implant in a calcium-containing solution and a phosphorus-containing solution, and carrying out surface mineralization treatment; then, inducing a product subjected to surface mineralization treatment to obtain hydroxyapatite; the biomimetic mineralized hydrogel coating with strong adhesiveness is obtained on the surface of the bone implant. According to the method, the surface of the bone implant is coated with the strong-adhesion hydrogel coating by adopting a dip-coating method, and the thickness and the surface flatness of the coating can be controlled by adjusting the dip-coating frequency.

The invention discloses a preparation method of a cobalt ferrite manganese ferrite L-polylactic acid composite antibacterial bone scaffold, which comprises the following steps: growing manganese ferrite on the surface of cobalt ferrite in situ to prepare cobalt ferrite-manganese ferrite composite powder, and adding the prepared cobalt ferrite-manganese ferrite composite powder into ethanol to prepare a suspension; the preparation method comprises the following steps: preparing cobalt ferrite-manganese ferrite and poly-L-lactic acid composite powder, performing ultrasonic mixing with poly-L-lactic acid ethanol suspension, performing centrifugal drying to obtain the cobalt ferrite-manganese ferrite and poly-L-lactic acid composite powder, and finally performing selective laser sintering to obtain the cobalt ferrite-manganese ferrite / poly-L-lactic acid composite antibacterial bone scaffold. As a novel bone implant, the cobalt ferrite-manganese ferrite / poly-L-lactic acid composite antibacterial bone scaffold prepared by the invention can generate local high temperature and a large amount of active oxygen under the excitation of an alternating magnetic field, so that a good antibacterial effect is achieved.

The invention discloses a magnesium-titanium composite material with an interpenetrating phase structure for bone implantation, the magnesium-titanium composite material is formed by interpenetrating a reinforced phase made of a titanium alloy material and a matrix phase made of magnesium or a magnesium alloy material, and the reinforced phase and the matrix phase are respectively kept continuous in a three-dimensional space; a reinforcing phase and a matrix phase of the magnesium-titanium composite material have gradient structures in the radial direction; the invention further discloses a preparation method of the interpenetrating phase structure magnesium-titanium composite material for bone implantation. According to the magnesium-titanium composite material disclosed by the invention, the structure is designed into a structure in which the reinforcing phase and the matrix phase are three-dimensionally continuous and interspersed with each other and the two phases are in gradient in the radial direction, so that the magnesium-titanium composite material implant and healthy bone tissue at a bone defect part of a patient realize good biomechanical adaptation; the material is suitable for being used as a bone implant in the field of biomedical metal materials.

The invention relates to the field of metal materials, in particular to a biodegradable zinc-germanium alloy material and a preparation method thereof. According to the technical scheme, the Ge-Zn-Zn alloy comprises the following metals in percentage by mass: 1.5-4.5% of Ge and the balance of Zn, or comprises the following metals in percentage by mass: 1.5-4.5% of Ge, 0.2-0.8% of silver and the balance of Zn. The biodegradable zinc-germanium alloy material has the beneficial effects that a trace amount of germanium element is added into pure zinc, and the biodegradable zinc-germanium alloy material with relatively high mechanical property, good biocompatibility and degradability is obtained through smelting and heat treatment; besides, a trace amount of silver element can be added as required, so that the zinc-germanium alloy has higher mechanical property, proper degradation rate and better antibacterial property, has huge potential of being applied to design of novel bone implant materials and heart stents, and has wide application prospects in biodegradable materials.

The invention discloses a shape memory alloy bone scaffold imitating a Haversian system as well as a 4D printing preparation method and application of the shape memory alloy bone scaffold. According to the 4D printing preparation method, the stress state and function requirements of the bone scaffold are fully considered, a bone scaffold porous structure with an imitated Haversian system is designed by adopting a function bionic method, and the bone scaffold is prepared by adopting a 4D printing technology. The inner layer imitated cancellous bone porous structure designed in the preparation method not only meets the requirement that the inner layer has good elasticity and toughness, but also facilitates cell adhesion to guide cell growth and maintains blood supply; the designed artificial cortical bone porous structure with the Haversian system on the outer layer meets the requirement that the outer layer has good compression resistance and bending resistance, and the Haversian system is more beneficial to ingrowth of blood vessels and nerves and maintains skeleton metabolism and repair. The shape memory alloy bone scaffold simulating the Haversian system, disclosed by the invention, has a wide application prospect in the field of bone implants.

An interbody implant can comprise a cage and a porous structure. The cage can comprise an anterior segment, a medial segment, a posterior segment and a lateral segment contiguously connected to each other to define an interior space. The porous structure can be located in the interior space and can be bounded by the cage. The porous structure can comprise opposed superior and inferior surfaces exposed through the cage, an internal cavity located in an interior of the porous structure, and a plurality of ports connecting the internal cavity to the superior and inferior surfaces. A superior-inferior stiffness of the interbody implant can be defined by the porous structure. The porous structure can be compressed within a patient by movement of the spine to biologically stimulate bone growth in vertebrae adjacent the interbody implant. The implant can be configured for lateral, anterior and posterior insertion at different spine levels.

Bone implants, assemblies, and methods thereof. The implants may include non-threaded triangular implants configured to promote fixation and fusion of the sacroiliac joint. The implants may have a triangular body configured to prevent or minimize rotational motion of the implant. The implants may include an inner core or an outer shell, which provides structural support for a lattice structure. The structural geometry may be generated through topology optimization software, such as finite element analysis, based on anatomical loading conditions for the implant.

The invention discloses a preparation method of a heterostructure medical bone implant based on additive manufacturing, which comprises the following steps of: 1, preparing TC4 titanium alloy powder into a titanium alloy bracket with interconnected and intercommunicated pores according to a proper printing strategy by utilizing a selective laser melting technology; secondly, the titanium alloy support is placed in a chemical polishing solution to be polished; 3, taking the chemically polished titanium alloy bracket as a cathode, taking a pure iron sheet as an anode, and immersing the cathode and the anode into an electroplating solution for electroplating; and 4, casting the zinc-based metal in a molten state into the square crucible with the titanium alloy-iron bracket, pressing the heavy block on the square crucible, cooling, cutting, implanting the formed titanium alloy-iron-zinc heterostructure medical bone implant into a human body, gradually degrading the zinc-based metal along with time, and forming a new bone on the surface, so as to obtain the titanium alloy-iron-zinc heterostructure medical bone implant. Good biocompatibility of the zinc-based metal ensures development and growth of cells and avoids growth of bacteria.