MIMICS软件介绍

MIMICS软件介绍Introduction to MIMICS softwareMIMICS is a highly integrated and easy to use 3D image generation and editing software, it can input various scanning data (CT, MRI), 3D model is established for editing, and then output the general CAD (Computer Aided Design), FEA (finite element analysis), RP (RP) format, can the conversion of large-scale data processing on PC. MIMICS FEA module MIMICS FEA module can scan the input data for rapid processing, the corresponding output file format for FEA (finite element analysis) and CFD (computer simulation), 3D model users can scan data, and then on the surface of the mesh with the application in FEA analysis. The mesh division function in the FEA module optimizes the input data of the FEA to a maximum extent. The Heinz units based on the scan data can be used to assign material to the bulk mesh.In MIMICS, we build a 3D model through point cloud data.In the FEA module, using the MIMICS function of the 3D model grid remeshing redivides.In the FEA module, output to Patran, Neutral, Ansys and Abaqus, surface and other FEA software.Convert surface mesh into body mesh for preprocessing (e.g.MSC, Marc,...)In the FEA module, enter Patran, Ansys, and Abaqus body mesh files.In the FEA module, material allocation is done to the body mesh based on scan data.In the FEA module, output the body mesh after the material is assigned to Patran, Ansys, or Abaqus and other FEA software.MIMICS remeshing function:The MIMICS function of remeshing can significantly improve the STL model quality and processing speed, can easily be irregular triangles into triangles near equilateral. In the further consolidation in the automatic function, can be more professional and semi automatic or manual classification, in order to better carry out FEA analysis.More quality control parameters:MIMICS remeshing function provides the control parameters as many as 14 kinds of general quality, quality of the user can select the appropriate method to calculate the triangle.A simple automatic remeshing function:Remeshing function can automatically improve the quality of triangles, it searches all under the quality level of the preset bad triangles, and then convert them to acceptable shape.Manual remeshing:In some cases, automatic remeshing is still below the trianglequality requirements, so we can perform remeshing using manual method, remeshing function provides a unique toolbox to manually modify their shape.Improving reliability and accuracy in FEA analysis:MIMICS remeshing function provides a highly automated interface for all FEA software, it can significantly improve the reliability of STL model FEA analysis results and accuracy. Optimization of most FEA software tools cannot be carried out after remeshing, which makes the accuracy of the final result will be greatly reduced, the optimized MIMICS file with remeshing function to output to the FEA software and the optimization results.Save computing time:In general, the time required for optimization will be longer, but MIMICS remeshing function will greatly shorten the time.Material allocation:In grid data, a gray value calculation unit at FEA function of each unit scanning image data based on grid, and then according to the gray level range of different definitions of the corresponding materials, can also according to the density, or E modulus and Poisson's coefficient to define material. The bulk mesh assigned to the material is output to the Patran, neutral, Ansys, and Abaqus files.Distribute material in a uniform way:The area will be divided into equal volume mesh in Heinz units, corresponding to each region of different material, using the empirical formula Heinz unit into a density value, then the density value assigned to the corresponding grid, then for each material definition of E modulus and Poisson coefficient.Assign material by look-up table:In a XML file for the gray value distribution of the corresponding density value, and then enter the XML file in the FEA module, in accordance with the definition of the XML file for each individual grid distribution of materials, each material definition E modulus and Poisson ratio.The operation simulation module MIMICS operation simulation moduleis the operation simulation platform, analysis of human body measurement and analysis of available data on the details of the template, osteotomy and separation surgery and implant surgery simulation, or to explain the process of implantation, great help.Anthropometric analysis:To the human body measurement and analysis, select a template, the reference surface and measuring method of preset mark, required, after the plane and measurement required marks are determined, and plane measurement will be determined, if there is no suitable template, can customize the template.Tag list:Can create, copy, edit, delete and other operations on the marking point, in the above operation before each marker has a default attribute respectively, can edit features include: mark name, color, description.Flat list;The second list allows the user to define one or more analytic planes. To define an analysis surface, you must first define the mark points, or a plane based on a previously generated template.Measurement list:There are many ways available to measure the angle or distance for measuring the distance between two points, whether in or between pointand a surface can be measured, can be used for measuring angles, three point method and two line method (each line is determined by two points), note: only measurement can be carried out in the the template hasdefined point and surface.Operation process simulation:The MIMICS surgical simulation features a powerful 3D toolkit for surgical simulation, a variety of tools for simulating bone cutting and surgery, and the operation of STL files.Cutting:Two types of cutting tools are available: multi line cutting andcutting surface with multi line cutting, cutting the polyline, the user with the method of painting line to define a cutting curve, the cutting surface is perpendicular to the viewing plane, if not cut through the cutting depth, the cutting will be ineffective, with the cut surface of the polyline the cutting method is a free cutting tool, you can drag the cutting in 3D and 2D, 2D and 3D in the cutting path in real-time display.Division:This feature divides an object into separate 3D models,Then, several different local 3D models are built.Fusion:The fusion function turns the selected different models into a model.Mirror image:Mirroring functions can mirror selected objects along a set plane or an already flat surface (from human data analysis or MEDCAD) to generate new objects, which can be used to select multiple objects for mirroring operations.Placing traction:After the cutting operation, can select the appropriate traction device placed were compared in the 3D model from thedatabase, because the cutting operation can not be done automatically, so the operator must be used correctly understand the selected method of tractor.Adjustment of traction position:In order to simulate the location and adjustment of the tractor, the analysis view of the tractor movement can be taken as a reference.Positioning function:Objects can be moved or rotated, any way of operation can be used to achieve the purpose of the user. There are several ways of modifying objects: moving in the axial direction, moving in the plane, or rotating along the axis, or of course, of course. Without these restrictions, the operation is also a choice. The registration function makes it easy to adjust objects with marker points, or to adjust objects with mouse movements.Additional function:The loaded STL file can be added to the project manager, and the buttons under the STL tab in the project manager can rotate, move, or otherwise move the STL file. A neural tool is available: first draw it in 2D, and then add a neural tag to the project manager.MEDCAD module and MEDCAD module are the bridge between medical image data and CAD, and communicate with each other through bidirectional interactive mode to realize the mutualconversion between scanning data and CAD data.There are two ways to build CAD projects in MIMICS projects:Contour modeling:In the segmentation function under the condition of MIMICS automatic generation of contour lines in the mask isolated, MEDCAD can automatically generate a local contour error in a given condition, and then used for medical geometry in CAD model.Possible methods for creating CAD models:-B spline curves and surfaces- points, lines, circles, surfaces, spheres, cylinders, etcAll of these entities can output IGES format in CAD software to make the implant, another typical application is using MEDCAD statistical analysis module, such as the measurement of many different femoral head data, to establish standard of shares for reference bone implant.Parametric or interactive CAD modelingYou can create CAD objects directly in 2D or 3D views, or create them in a parameter setting (such as defining the center of a circle andradius) to create a circle that can be interactively edited after you have created it.Convenient design verification:For the design and verification of CAD implant, the MIMICS input STL file format in the 2D view and standard view display, or displayed in the 3D view, with a transparent display of anatomy, the use of this method can achieve rapid medical imaging in CAD software call.The RP-SLICE module Rp-slice module establishes the SLICE format interface between the MIMICS and the majority of RP machines, and the RP-Slice module automatically generates the support structure required for the RP model.Fast and accurate data conversion for RP machines:RP Slice technology can be used to process large files and maintain high resolution. In the establishment of slicing files, the resolution of the RP model is improved by the three interpolation algorithm.The supporting pore forming technology, a patented technology of materialise, can not only speed up the molding process by four times, but also save more materials and facilitate cleaning.Section:Rp-slice can be in a very short time for the best, most accuratedata conversion, output SLI, SLC format to 3D System, CLI format to EOS. Higher order interpolation algorithm can make scan data into 3D model with perfect surface.To color:Rp-slice supports color photosensitive materials: teeth, teeth, glands, neural tube were significantly marked in the model, this is a new reference dimension, patient information can also be embedded or color label.Parameter:RP-slice allows you to set parameters such as layer thickness, resolution, scale, and so on. There are a variety of filtering options, such as minimum length filtering, minimum contour length, and linear deviation correction. Slice data can be saved in many formats: *.CLI, *.SLI, *.SLC.Support generation:Support generation function, automatically generate the required in the rapid prototyping of the supporting structure, and the corresponding automatic file format output (SLI, SLC, and CLI format), which not only provides a more rapid molding before data preparation method, and patent hole technology can make the whole process shortened more than four times moreover, material saving, production support than traditional methods generated more easy to clean.Support generation parameter selection:Can provide several generation of support parameters for selection, RP-slice the X, Y coordinate plane definitionsupport possible, defined the length and hole angle, the maximum angle without support and support the beginning and end of height.The Mimics STL+ module Mimics STL+ module interacts with the RPrapid prototyping technology through the triangular file format, and the two yuan and the middle face interpolation algorithm can guarantee the final accuracy of the rapid prototyping MIMICS.Output format:3D file format standards, such as STL or VRML (virtual reality format), STL file format can be used in any RP machine, strong adaptive filtering can significantly reduce the size of the file, from the mask, 3D and 3DD file format, file format output include: ASC STL, Binay STL, DXF, VRML2.0, PointClouds.Parameter setting:Several parameters can be selected, and the STL+ module can reduce the number of triangles in the output file. By interpolating the image, the 3D model can be processed smoothly.There are two ways to reduce the number of triangles: matrix reduction and triangle matrix reduction can be reduced, the voxel (or point) are combined to calculate the triangle, triangle reduction can reduce the number of triangles in the mesh partition. Reducing the number of triangles is beneficial to the operation of the document.There are two ways to generate 3D mesh by interpolating the image: gray interpolation and contour interpolation. Contour interpolation is the 2D interpolation in the image plane, so that these images can be extended in the height direction. Gray interpolation is the real meaning of 3D interpolation.When the image quality we need is better than the 3D reconstruction and the STL file precision, we can use the continuous algorithm function instead of the exact algorithm.Smoothing algorithms can make rough surfaces smoother.。