CN113808749A - Implant analysis method, device and equipment - Google Patents
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Abstract
The embodiment of the invention provides an implant analysis method, device and equipment, wherein the analysis method comprises the following steps: acquiring a medical image of a bone of a surgical site of a patient; generating a bone plate model and a bone model which are attached to the bone surface according to the medical image; assembling the bone model and the bone fracture plate model to obtain a first implant model; carrying out parameterization processing on the model of the implant to generate a second implant model; performing finite element analysis on the second implant model to generate an analysis result; judging whether the analysis result meets a preset condition, and determining the analysis result as a final analysis result when the analysis result meets the preset condition; and when the analysis result does not meet the preset condition, carrying out parameterization processing and finite element analysis on the model of the second implant repeatedly, and judging whether the generated analysis result meets the preset condition or not until the analysis result meets the preset condition.
Description
Technical Field
The invention relates to the technical field of bioengineering, in particular to an implant analysis method, device and equipment.
Background
Natural teeth of humans may be supported in the jaw by periodontal fibers, which act as shock absorbers when compressive forces are applied, such as during chewing. The patient's natural teeth may be removed or missing due to caries, accidental injury, anatomical abnormalities, age, etc. As a result, the dental implant device may be implanted into a bone structure of a patient to improve the appearance and/or dental function of the patient. Dental implants, which are widely used in dental treatment, are ready-made products.
In the prior art, the technical problem that the stability of the healing of the bone of a patient is uncertain because the implant cannot be parameterized and analyzed effectively in the modeling and analyzing process of the implant exists.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide an implant analysis method, which is used to solve the technical problem existing in the prior art that the implant cannot be parameterized and analyzed effectively in the process of modeling and analyzing the implant, so that the stability of the patient bone healing is uncertain.
In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme:
an embodiment of the present invention provides an implant analysis method, including:
acquiring a medical image of a bone of a surgical site of a patient;
generating a bone plate model and a bone model which are attached to the bone surface according to the medical image;
assembling the bone model and the bone fracture plate model to obtain a first implant model;
carrying out parameterization processing on the model of the implant to generate a second implant model;
performing finite element analysis on the second implant model to generate an analysis result;
judging whether the analysis result meets a preset condition or not,
when the analysis result meets a preset condition, determining the analysis result as a final analysis result;
and when the analysis result does not meet the preset condition, carrying out parameterization processing and finite element analysis on the model of the second implant repeatedly, and judging whether the generated analysis result meets the preset condition or not until the analysis result meets the preset condition.
Further, the finite element analysis includes static stress analysis, fatigue analysis, and topological calculations.
Further, the parameterization processing is to reset the profile curve, the plate thickness of the bone fracture plate, the position of the screw, the specification parameters of the screw and the finite element parameters.
Further, the generating of the bone plate model fitted to the bone surface according to the medical image specifically includes:
acquiring a visual angle for drawing the bone fracture plate outline and a bone fracture plate outline according to the medical image;
generating a first bone fracture plate model which is attached to a bone surface according to the visual angle for drawing the bone fracture plate outline and the drawn bone fracture plate outline;
and picking points on the surface of the first bone fracture plate and generating screw holes to generate a bone fracture plate model which is attached to the bone surface.
Further, picking points and generating screw holes on the surface of the first bone plate, and generating a bone plate model which is attached to a bone surface specifically comprises:
picking points on the surface of the first bone fracture plate and generating screw holes to generate a second bone fracture plate;
and carrying out porous treatment on the surface of the second bone fracture plate to generate a bone fracture plate model which is attached to the bone surface.
Furthermore, the reconstruction of the first simulation model, the grid division, the solution and the visualization are all in the same set of geometric model.
Further, the assembling the bone model and the bone plate model to obtain the first implant model specifically comprises:
obtaining an assembly screw model through Boolean operation according to the bone fracture plate model;
and assembling the bone plate model, the assembling screw model and the skeleton model to obtain a first implant model.
Further, the static stress analysis specifically includes:
and respectively endowing each part of the second implant model with material properties, constraint setting and load setting, generating a grid according to the set grid density, solving the grid, and generating an analysis result.
Further, the fatigue analysis predicts the second implant model fatigue life based on a material property S-N curve.
Embodiments of the present invention also provide an analysis apparatus for an implant, the analysis apparatus including the following modules:
the simulation device comprises the following modules:
an acquisition module for acquiring a medical image of a bone of a surgical site of a patient;
the generating module is used for generating a bone fracture plate model and a bone model which are attached to a bone surface according to the medical image;
the assembling module is used for assembling the bone model and the bone fracture plate model to obtain a first implant model;
the processing module is used for carrying out parameterization processing on the model of the implant to generate a second implant model;
an analysis module for performing finite element analysis on the second implant model to generate an analysis result;
a judging module for judging whether the analysis result meets a preset condition,
when the analysis result meets a preset condition, determining the analysis result as a final analysis result;
and when the analysis result does not meet the preset condition, carrying out parameterization processing and finite element analysis on the model of the second implant repeatedly, and judging whether the generated analysis result meets the preset condition or not until the analysis result meets the preset condition.
Embodiments of the present invention also provide an implant analysis apparatus, including a processor and a memory;
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is configured to perform a method of analyzing an implant as described above according to instructions in the program code.
Compared with the prior art, the embodiment of the invention has the beneficial effects that:
the embodiment of the invention provides an implant analysis method, device and equipment, wherein the analysis method comprises the following steps: acquiring a medical image of a bone of a surgical site of a patient; generating a bone plate model and a bone model which are attached to the bone surface according to the medical image; assembling the bone model and the bone fracture plate model to obtain a first implant model; carrying out parameterization processing on the model of the implant to generate a second implant model; performing finite element analysis on the second implant model to generate an analysis result; judging whether the analysis result meets a preset condition, and determining the analysis result as a final analysis result when the analysis result meets the preset condition; and when the analysis result does not meet the preset condition, carrying out parameterization processing and finite element analysis on the model of the second implant repeatedly, and judging whether the generated analysis result meets the preset condition or not until the analysis result meets the preset condition.
The implant analysis method not only realizes the rapid modeling and rapid simulation of the implant lacking, but also perfects the parameterization processing on the basis; meanwhile, by generating the bone fracture plate with the matched skeleton outline of the patient, the overall stability is effectively improved, the biomechanical property of an implant system is improved, and the technical problem that in the prior art, the stability of the patient bone healing is uncertain due to the fact that the implant cannot be parameterized and analyzed effectively in the modeling analysis process of the implant is solved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a method flow diagram of a method of analyzing an implant according to an embodiment of the present invention;
FIG. 2 is a block diagram of an implant analysis system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an implant analysis device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1, the present embodiment provides an implant analysis method, including:
acquiring a medical image of a bone of a surgical site of a patient;
wherein, the patient is detected and scanned by CT or other image devices to obtain the medical image of the bone of the operation position of the patient.
After the medical image of the bone of the surgical site of the patient in the scanned DICOM format is imported into the minics for processing, the useful image obtained by processing is output in the STL file format and imported into SolidWorks for entity conversion, and the useful image is converted into the SLDPRT format for saving and naming again.
Generating a bone plate model and a bone model which are attached to the bone surface according to the medical image;
specifically, according to the medical image, obtaining a visual angle for drawing the bone fracture plate outline and a bone fracture plate outline;
generating a first bone fracture plate model which is attached to a bone surface according to the visual angle for drawing the bone fracture plate outline and the drawn bone fracture plate outline;
and picking points on the surface of the first bone fracture plate and generating screw holes to generate a bone fracture plate model which is attached to the bone surface.
Wherein, being in the surface pick-up point of first coaptation board generates the screw, and the coaptation board model that generates and laminate mutually with the skeleton face specifically includes:
picking points on the surface of the first bone fracture plate and generating screw holes to generate a second bone fracture plate;
and carrying out porous treatment on the surface of the second bone fracture plate to generate a bone fracture plate model which is attached to the bone surface.
Entering a modeling module of a software design interface, selecting a visual angle for drawing the outline of the bone fracture plate and the outline of the bone fracture plate by means of a SolidWorks operation interface according to a prompt instruction in the aspect of modeling the personalized implant, quickly and automatically generating a first bone fracture plate model which is attached to a bone surface, generating a screw hole with a certain specification at a pick-up point on the surface of the first bone fracture plate model, and calling a SolidWorks Boolean operation function to generate a screw with a certain specification; in the aspect of carrying out porous structure modeling on the bone plate model, the porous structure processing of the corresponding position of the bone plate model is realized by setting porous structure parameters or calling the porous structure model in a database to be directly applied to the bone plate model; in the aspect of calling the part library, different types of designed anatomical bone fracture plates are stored in the part library in advance, and calling is realized on the parts through an interface.
Assembling the bone model and the bone fracture plate model to obtain a first implant model;
specifically, the assembling the bone model and the bone plate model to obtain the first implant model specifically comprises:
obtaining an assembly screw model through Boolean operation according to the bone fracture plate model;
and assembling the bone plate model, the assembling screw model and the skeleton model to obtain a first implant model.
In an assembly module of the implant, a SolidWorks insert part function is called, a bone plate model and a corresponding screw part are inserted, and the bone model is subjected to self-adaption to complete assembly of the first implant model.
The modeling and assembling module is mainly divided into a single-segment implant mode and a multi-segment implant mode, and taking the multi-segment implant mode as an example, the design steps sequentially comprise bone plate modeling, bone model processing, screw Boolean production and implant system assembling.
Carrying out parameterization processing on the model of the implant to generate a second implant model;
the partial dimensions of the first implant model are modified and the model is updated by a parameterization process.
The parameterization processing comprises resetting of a profile curve, the plate thickness of the bone fracture plate, the position of a screw, specification parameters of the screw and finite element parameters. The parameterization process is mainly used for modifying parameters of the first implant model, such as parameters of a contour curve, the thickness of a bone fracture plate, the position of a screw, specifications of the screw and the like, and setting and modifying engineering analysis parameters, such as material setting, constraint, load, grid and the like.
Performing finite element analysis on the second implant model to generate an analysis result;
wherein the finite element analysis comprises static stress analysis, fatigue analysis and topological calculation.
Specifically, the static stress analysis specifically includes:
and respectively endowing each part of the second implant model with material properties, constraint setting and load setting, generating a grid according to the set grid density, solving the grid, and generating an analysis result.
The fatigue analysis predicts the second implant model fatigue life based on a material property S-N curve.
According to the requirements of the implant, an engineering analysis interface is developed for three analysis types of static stress analysis, fatigue analysis and topological calculation which are commonly used. The engineering analysis module is realized through a Simulation plug-in of the SolidWorks, firstly, a dynamic link SolidWorks.
In the Simulation module, the finished constraint setting in the static stress analysis has the functions of a fixed geometric body, a fixed hinge, an elastic support and the like, wherein the fixed geometric body can be used for fixing an implant system or a skeleton, and the elastic support can simulate the constraint load of muscle force of an incisor muscle, an infrapterus muscle, a temporalis muscle and the like by setting the normal stiffness of the elastic support. The material property of the application of the fatigue analysis needs to be provided with a material property with an S-N curve, and the fatigue analysis and the topological optimization need to be related through an example, and an existing static stress analysis example is related.
The static stress analysis module simplifies the setting of the finite element analysis pretreatment, adds the function of recording pretreatment setting so as to repeat the same setting to quickly obtain a simulation result, and the static stress simulation result can quickly check the maximum values and positions of stress, displacement and strain and is displayed in a software interface. The fatigue analysis module predicts the fatigue life of the implant system based on the S-N curve of the material characteristics, and a designer can intuitively and rapidly confirm dangerous parts and weak links in the structure.
Judging whether the analysis result meets a preset condition or not,
when the analysis result meets a preset condition, determining the analysis result as a final analysis result;
and when the analysis result does not meet the preset condition, carrying out parameterization processing and finite element analysis on the model of the second implant repeatedly, and judging whether the generated analysis result meets the preset condition or not until the analysis result meets the preset condition.
And after the analysis and solution are completed, obtaining a finite element analysis result, selecting the analysis result to check, evaluating whether the analysis result meets a preset condition, and if the result meets the preset condition, storing the result and exporting a file of the second implant model in a format required by 3D printing. And if the result is unqualified, carrying out parameterization on the second implant model again, modeling or carrying out I-finite element analysis after carrying out parameterization on the implant again, solving and obtaining the analysis result again, and repeating the steps until the obtained analysis result is qualified.
The analysis method of the embodiment is suitable for three-dimensional software such as SolidWorks;
specifically, through a SolidWorks API function interface, using VB.NET to carry out secondary development on SolidWorks, establishing a set of human-computer interaction interface software, and researching and adding a special function module suitable for carrying out parameterization processing on the implant in the software; the SolidWorks application is used as a service program by selecting a proper API interface, the starting and closing of the SolidWorks on the background can be controlled at any time and the function of the SolidWorks can be called through a functional module designed in the human-computer interaction interface, a SolidWorks special functional module suitable for the user needs is established, and the design efficiency is greatly improved.
In the embodiment, SolidWork is selected to complete all designs of the implant, including part modeling, part assembly and finite element analysis. The SolidWork parameterization of the implant can be achieved by generating a new personalized model by size-driving the model built with new size values. The boolean operation function of SolidWork is used for assembling the leading-in parts of the bone fracture plate model, so that the complicated assembling process can be greatly reduced. The finite element module Simulation of SolidWorks can quickly perform static stress analysis, topological optimization, fatigue analysis and the like on the model, simplify the design flow and greatly improve the analysis efficiency of a user.
According to the implant method, the man-machine interaction software of secondary development design is carried out through three-dimensional software such as SolidWorks, modeling, simulation and parameterization processing of an implant system can be completed in one station, rapid modeling and rapid simulation of the personalized implant of the defective bone are achieved, and the parameterization processing is completed on the basis. Meanwhile, the implant system software is a bone fracture plate which is designed to be attached to the outline of the skeleton of a patient, so that the overall stability is effectively improved, and the biomechanical property of the implant system is improved. The invention also reduces the callus model through Boolean operation in the modeling module, simulates the strain condition of the callus in different periods through finite element analysis, then judges whether the skeletal development is facilitated, and the parameterization processing can realize the operations of automatic modeling assembly, pretreatment setting, simulation solving and the like only by modifying the main parameters of the command stream text carried by the software through self-defined command stream sentences, thereby saving the steps of needing cyclic operation and greatly improving the efficiency.
The bone fracture plate design of the modeling module can be designed in a single-section or segmented mode, and personalized design of different cases is met; a callus model modeling function is added in the modeling module, so that conditions are provided for evaluating the effect of bone stimulation healing by subsequently simulating a callus strain result; 4. the recording function of the operation command is set for each operation step, and the steps of circular operation are omitted for each module; the parameterization processing is mainly used for modifying the parameter setting of the model and the finite element in a mode of modifying the main parameters of the command stream or directly modifying the corresponding parameters on a software interface; and the machine interactive interface software executes the corresponding functions according to a specific sequence when executing the corresponding functions, and automatically limits the functions which are not executable currently to be unusable.
Furthermore, because the mandible part is a relatively frequent movable joint of a human body, the fixation of the mandible fracture and the repair and fixation of bone defects need to meet certain biomechanical characteristics, and doctors serving as non-engineering designers are often not good at guiding the design of implant systems by using biomechanical properties. The implant analysis method of the embodiment makes up the defect that a doctor designs the implant from the aspect of engineering, and breaks through the traditional design method that the doctor only depends on medical clinical experience.
By the plant implant analysis method, the individualized implant attached to the surface of the defective mandible can be better designed, and the individualized implant is parameterized, so that the stability of postoperative bone healing of a patient is improved, rehabilitation exercise is performed in advance, the bone healing is accelerated, the service life of the implant can be prolonged, and the possibility of permanent fixation is increased. The implant with the three-dimensional shape attached to the bone surface and good biomechanics characteristics can not only reduce the operation time, improve the initial stability and accelerate the bone healing, but also reduce or eliminate the bone absorption, reduce the possibility of the failure of the fixing plate and improve the success rate of the operation.
As shown in fig. 2, an embodiment of the present invention further provides an implant analysis device, where the simulation device includes the following modules:
an acquisition module 201, wherein the acquisition module 201 is used for acquiring a medical image of a bone of a surgical site of a patient;
a generating module 202, wherein the generating module 202 is used for generating a bone plate model and a bone model which are attached to a bone surface according to the medical image;
an assembly module 203, wherein the assembly module 203 is configured to assemble the bone model and the bone plate model to obtain a first implant model;
the processing module 204, the processing module 204 is configured to perform parameterization on the model of the implant to generate a second implant model;
an analysis module 205, wherein the analysis module 205 is configured to perform a finite element analysis on the second implant model to generate an analysis result;
a judging module 206, wherein the judging module 206 is configured to judge whether the analysis result satisfies a preset condition,
when the analysis result meets a preset condition, determining the analysis result as a final analysis result;
and when the analysis result does not meet the preset condition, carrying out parameterization processing and finite element analysis on the model of the second implant repeatedly, and judging whether the generated analysis result meets the preset condition or not until the analysis result meets the preset condition.
The analysis device not only realizes the rapid modeling and rapid simulation of the implant lacking part, but also perfects the parameterization processing on the basis; meanwhile, by generating the bone fracture plate with the matched skeleton outline of the patient, the overall stability is effectively improved, the biomechanical property of an implant system is improved, and the technical problem that in the prior art, the stability of the patient bone healing is uncertain due to the fact that the implant cannot be parameterized and analyzed effectively in the modeling analysis process of the implant is solved.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
As shown in fig. 3, an embodiment of the present invention also provides an implant analysis apparatus, which includes a processor 300 and a memory 301;
the memory 301 is used for storing a program code 302 and transmitting the program code 302 to the processor;
the processor 300 is configured to execute the steps of one of the above embodiments of the implant analysis method according to the instructions in the program code 302.
Illustratively, the computer program 302 may be partitioned into one or more modules/units that are stored in the memory 301 and executed by the processor 300 to accomplish the present application. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution process of the computer program 302 in the terminal device 30.
The terminal device 30 may be a desktop computer, a notebook, a palm computer, a cloud server, or other computing devices. The terminal device may include, but is not limited to, a processor 300, a memory 301. Those skilled in the art will appreciate that fig. 3 is merely an example of a terminal device 30 and does not constitute a limitation of terminal device 30 and may include more or fewer components than shown, or some components may be combined, or different components, e.g., the terminal device may also include input-output devices, network access devices, buses, etc.
The Processor 300 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The storage 301 may be an internal storage unit of the terminal device 30, such as a hard disk or a memory of the terminal device 30. The memory 301 may also be an external storage device of the terminal device 30, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are provided on the terminal device 30. Further, the memory 301 may also include both an internal storage unit and an external storage device of the terminal device 30. The memory 301 is used for storing the computer program and other programs and data required by the terminal device. The memory 301 may also be used to temporarily store data that has been output or is to be output.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method of analyzing an implant, the method comprising:
acquiring a medical image of a bone of a surgical site of a patient;
generating a bone plate model and a bone model which are attached to the bone surface according to the medical image;
assembling the bone model and the bone fracture plate model to obtain a first implant model;
carrying out parameterization processing on the model of the implant to generate a second implant model;
performing finite element analysis on the second implant model to generate an analysis result;
judging whether the analysis result meets a preset condition or not,
when the analysis result meets a preset condition, determining the analysis result as a final analysis result;
and when the analysis result does not meet the preset condition, carrying out parameterization processing and finite element analysis on the model of the second implant repeatedly, and judging whether the generated analysis result meets the preset condition or not until the analysis result meets the preset condition.
2. The method of analyzing an implant of claim 1, wherein the finite element analysis comprises a static stress analysis, a fatigue analysis, and a topology calculation.
3. The method of analyzing an implant according to claim 1,
the parameterization processing is to reset the profile curve, the plate thickness of the bone fracture plate, the position of the screw and the specification parameters thereof and the finite element parameters.
4. Method for analyzing an implant according to claim 3, characterized in that the generation of a bone plate model for the application to the bone surface from the medical image is embodied as:
acquiring a visual angle for drawing the outline of the bone fracture plate and the outline of the bone fracture plate according to the medical image;
generating a first bone fracture plate model which is attached to a bone surface according to the visual angle for drawing the bone fracture plate outline and the drawn bone fracture plate outline;
and picking points on the surface of the first bone fracture plate model and generating screw holes to generate the bone fracture plate model which is attached to the bone surface.
5. The method of analyzing an implant according to claim 4, wherein picking points and generating screw holes in the surface of the first bone plate to generate a bone plate model that conforms to a bone surface comprises:
picking points on the surface of the first bone fracture plate and generating screw holes to generate a second bone fracture plate;
and carrying out porous treatment on the surface of the second bone fracture plate to generate a bone fracture plate model which is attached to the bone surface.
6. The method for analyzing an implant according to claim 1, wherein said assembling the bone model and the bone plate model to obtain a first implant model comprises:
obtaining an assembly screw model through Boolean operation according to the bone fracture plate model;
and assembling the bone plate model, the assembling screw model and the skeleton model to obtain a first implant model.
7. The method for analyzing an implant according to claim 2, wherein the static stress analysis comprises in particular:
and respectively endowing each part of the second implant model with material properties, constraint setting and load setting, generating a grid according to the set grid density, solving the grid, and generating an analysis result.
8. The method of analyzing an implant of claim 2, wherein the fatigue analysis is a prediction of the second implant model fatigue life based on a material property S-N curve.
9. An implant analysis device, characterized in that the simulation device comprises the following modules:
an acquisition module for acquiring a medical image of a bone of a surgical site of a patient;
the generating module is used for generating a bone fracture plate model and a bone model which are attached to a bone surface according to the medical image;
the assembling module is used for assembling the bone model and the bone fracture plate model to obtain a first implant model;
the processing module is used for carrying out parameterization processing on the model of the implant to generate a second implant model;
an analysis module for performing finite element analysis on the second implant model to generate an analysis result;
a judging module for judging whether the analysis result meets a preset condition,
when the analysis result meets a preset condition, determining the analysis result as a final analysis result;
and when the analysis result does not meet the preset condition, carrying out parameterization processing and finite element analysis on the model of the second implant repeatedly, and judging whether the generated analysis result meets the preset condition or not until the analysis result meets the preset condition.
10. An implant analysis device comprising a processor and a memory;
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is configured to perform a method of analyzing an implant according to any one of claims 1-8 according to instructions in the program code.
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