445 results about "Bone implant" patented technology

The medical bone implant (1; 11, 14) for stabilizing a bone area is provided, comprising an implant body made of a thermoplastic composite material for fixing in or on a human or animal bone for stabilizing the bone area, and further comprising at least one sensor (2) for measuring one or more parameters of the healing process and / or the state of the implant (1; 11, 14). The at least one sensor (2) is a passive magnetoelastic sensor (2). Furthermore, a method for monitoring the state of the implant (1; 11, 14) is provided, in which the passive magnetoelastic sensor (2) is used for monitoring the state of the implant (1; 11, 14) during the manufacturing process of the implant (1; 11, 14) and / or during storage of the implant (1; 11, 14).

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 belongs to the technical field of biological coatings, and provides an antibacterial coating with a TaCu nano multilayer structure and a preparation method of the antibacterial coating. The antibacterial coating comprises a Cu layer and a Ta layer which are sequentially and alternately stacked on a base body, the Cu layer is in contact with the base body, and the Ta layer is the outermost layer. The Cu layers and the Ta layers are sequentially and alternately stacked on the substrate, the Cu < 2 + > layer-by-layer release delays the release rate, the cytotoxicity is reduced, and a lasting antibacterial effect is obtained; meanwhile, due to introduction of Ta, the osteogenesis performance of the matrix is effectively enhanced, and proliferation of bone cells is promoted. The antibacterial coating does not show cytotoxicity to rat bone marrow mesenchymal stem cells, can inhibit growth of staphylococcus aureus for a long time, is beneficial to promoting proliferation of osteoblasts, and can be used as an antibacterial coating for the surface of a bone implant. The preparation method of the antibacterial coating provided by the invention has the advantages of simple process, high deposition speed and high bonding strength.

The present invention relates to a medical magnesium rare earth alloy powder and a preparation method and application thereof, belonging to the technical field of metal additive manufacturing. It is used to solve the problem that the existing magnesium alloy powder is used for additive manufacturing of formed bone implants, which will lead to excessive degradation rate of magnesium alloy bone implants, decreased biocompatibility, poor corrosion resistance and antibacterial properties, and fail to meet the performance requirements of bone implants. A medical magnesium rare earth alloy powder, the composition by weight percentage is: Sc: 0.5-2.75%, Zr: 0-0.5%, Y: 4-7%, and the rest is Mg and non-removable impurity elements. The magnesium alloy powder of the present invention has high purity, few impurities, slight surface oxidation, is suitable for laser additive manufacturing, has no obvious component deviation, and is controllable in composition; the magnesium alloy bone implant obtained by additive manufacturing has good corrosion resistance, can continuously provide mechanical support, and the number of mechanical support days is ≥85 days, which is better than the performance requirements of bone implants in my country's medical industry.

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.

A medical bone implant for stabilizing a bone region is provided, comprising an implant body manufactured from a thermoplastic composite material for the purpose of being anchored in or on a human or animal bone for the purpose of stabilizing the bone region, and further comprising at least one sensor for measuring one or more parameter(s) of the healing process and / or of a condition of the implant. The at least one sensor is a passive, magnetoelastic sensor. Furthermore, a method for monitoring the condition of an implant is provided. A passive magnetoelastic sensor is used for monitoring the condition of the implant during its manufacturing process and / or during its storage.

The invention relates to an orthopedic knee joint prosthesis (2) comprising a metallic femoral implant part (4), a metallic tiboral implant part (6), and a meniscus replacement part (8) which forms a sliding partner for the femoral implant part (4) and is held on the tiboral implant part (6), wherein the femoral implant part (4) in the implanted state has surface areas (10) facing the bone and in contact with the bone, wherein the femoral implant part (4) in the implanted state has articulating condylar surface areas (12) in sliding contact with the meniscus replacement part (8) as a sliding partner, wherein the tiboral implant part (6) in the implanted state has surface areas (16) facing the bone and in contact with the bone, and wherein the tiboral implant part (6) in the implanted state has surface areas (18) in contact with the meniscus replacement part (8).wherein the femoral implant part (4) and the tiboral implant part (6) each have surface areas (14, 20) in the implanted state that are not in contact with the bone or the meniscus replacement part, but are in contact with the soft tissue, wherein the femoral implant part (4) has at least a hardening and wear-reducing, in particular multilayer, coating (38) on the articulating condylar surface areas (12) that are in sliding contact with the sliding partner; according to the invention, it is proposed that the femoral implant part (4) and / or the tiboral implant part (6) has a three-dimensionally porous surface structure (30, 32) in the surface areas (10, 16) facing the bone to promote bone ingrowth into the implant part (4, 6),and that the femoral implant part (4) and / or the tiboral implant part (6) has a coating (52, 54) on the surface areas (14, 20) that are not in contact with the bone and not with the meniscus replacement part (8) but are in contact with soft tissue, at least in some areas, by means of which the surface roughness of these surface areas (14, 20) is reduced.

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.

The present invention generally relates to bone implants. More specifically, the present invention relates to bone implants used for the fixation or fusion of the sacroiliac joint and / or the spine. For example, a system for fusing or stabilizing a plurality of bones is provided. The system includes an implant structure having stem portion and a head portion, the stem portion having a rectilinear cross sectional area. A tulip or saddle structure can be attached to the head portion, and a rod can be secured within the tulip or saddle structure.

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 described system designed to promote the biological attachment of fibrous connective tissue to a bone implant features a bone implant with a scaffold defining a porous attachment surface, a suction port, and a manifold that distributes a negative pressure gradient across the attachment surface. The system also includes an extracorporeal vacuum pump and a percutaneous suction hose connecting the suction port of the implant to the vacuum pump. The implant is placed in the patient's body with connective tissue applied over the attachment surface, and the suction hose is attached and connected to the vacuum pump. The vacuum pump, operating outside the body, creates a negative pressure gradient over an extended period, promoting the growth of slow growing Sharpey's fibres for superior biological integration. A highly vascularised tissue graft, such as a pedicled muscle flap, may be applied adjacent to the avascular tendon to enhance endogenous growth factor migration.

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.