As computer simulation has been widely used for analysis such as strength of structure or ﬂow of ﬂuid, it is indispensable in engineering. Simulation is also spreading in medical research, for example blood ﬂow in the vessel or joint force during walking.
With regard to bone, bone density has been used for evaluation of bone strength, especially osteoporosis risk. However it has been pointed out the limitation that bone density can not remove the influence of bone spur or calciﬁed vessel which don't contribute to strength and can not consider bone structure. Therefore evaluation of bone strength by finite element analysis have attracted attention over the years. This method evaluates the bone strength by constructing patient-speciﬁc bone model from CT data, assigning bone density and material properties from CT value, and performing ﬁnite element analysis. Today, it is used for various analyses such as implant installation or osteotomy in research ﬁeld.
Computer simulation has beneﬁt that analysis or measurement which can not be performed in vivo or experiment using cadaver is possible. However widely-used software has general versatility and high functionality, they make it difﬁcult for non-engineer to learn the operation and the technique for an analysis. MECHANICAL FINDER is the finite element analysis software developed for medical doctors to analyze with no difﬁculty in clinical practice and a study.
MECHANICAL FINDER is the software to evaluate bone strength by considering the entire bone as a three-dimensional structure and applying ﬁnite element analysis.
MECHANICAL FINDER includes all functions needed for CT-based Finite Element Analysis, that is, from loading DICOM data to analysis.
CT-based modeling enables constructing model with patient-speciﬁc bone geometry and density.
Bone has been modeled as homogeneous or 2-layered material in analysis. MECHANICAL FINDER can build it as an inhomogeneous material reﬂecting CT value.
Technical stuﬀ support your analysis by responding your inquiry ranging from an operation procedure to a consultation of analysis.
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Material properties of each element are calculated from CT value, then inhomogeneous material can be constructed. User-established conversion equation can be also applied.
Material nonlinear analysis which handles fracture and plasticity of element can be performed.
Analysis with large deformation or rotation can be treated with geometrical nonlinear analysis.
Shock analysis or analysis with inertial force can be performed by dynamic analysis.
Vector of deformation, contact force, or tension of truss element can be visualized by arrows.
Direction of principal stress or strain can be visualized to evaluate either compressive or tensile direction.
Results or material properties of designated area can be extracted in numerical data. Extracted data can be output in CSV file format.
Histogram or time series graph for material properties or results can be drawn. The function enables to draw load displacement curve as tensile or compression test.
Standard Edition is optimized for those who perform finite element analysis for single bone.
Loading of DICOM data to analysis is possible on this edition.
After finite element analysis, stress, strain, or fracture of single bone can be displayed.
For analysis, material properties including density value/Young's modulus can be assigned to complete inhomogeneous material by conversion equation from CT value to density.
Extended Edition optimized for those who perform finite element analysis for multiple bones or bone with implant. In addition to functions of Standard Edition, implant installation, reposition of bone, contact analysis,
and setting of initial velocity can be performed.
Mesh generation for complicated model such as implant-installed bone can be automatically processed.
On "Functions" pages, function marked with (EE) is equipped only in Extended Edition.
|ROI and Phantom||2D/3D ROI Extraction/Effect processing||(only one group)||(up to 7 groups)|
|Bone density calibration phantom setting|
|Mesh generation||Mesh generation||(only for single bone)||(possible on overlapped models)|
|Mesh generation for multiple parts|
|Changing mesh size by part|
|Implant(stl data) installation|
|Materials||Inhomogeneous material properties for bone|
|Translation and rotation of bone|
|Homogeneous materials||(depending on mesh)|
|Rubber materials(homogeneous)||(depending on mesh)|
|Truss element defined by strain-stress|
|Boundary condition||Load condition/Forced displacement condition|
|Initial velocity setting|
|Analysis (Finite Element Analysis)||Elasticity analysis/Material nolinear analysis|
|Dynamic analysis||(no initial velocity setting)|
|Large deformation analysis||(depending on mesh)|
|Output surface mesh||STL/DXF format|
|Display function||Result display(contour/deformation/etc.)|
|Data extraction function(material/result/etc.)|
|Image output(BMP/JPEG/TIFF/PNG format)|
|Video output(AVI/MPEG format)|
|3D animation output(GFAformat)|
|Graph/ Measurement||Graph drawing function|
|Tools||Input from image file(BMP/JPEG/TIFF)|
|Text output of project information|
|Batch(meshing & analysis) processing program|
|Remote batch processing program|
|Recommended Hardware Requirements|
|OS||Windows 7 64bit
Windows 8.1 64bit
Windows 10 64bit
|CPU||Intel® CoreTM i7
|Memory||Standard Edition: 8GB and over
Extended Edition: 16GB and over
*Analyzable model size depends on memory size
|Graphics||Discrete: NVIDIA®, AMD
Integrated: Intel® IrisTM Graphics
|Display||Resolution 1280 x 1024 and over|
|Storage||Disk space 100GB and over
*Particularly required for saving projects
(Project data can be saved in external storage)
MECHANICAL FINDER was approved as a medical device by Japanese Pharmaceuticals and Medical Devices Agency as follows on 21 January 2016.
<Medical device approval number> No. 22800BZX00023000
Program 1 Diagnostic related program
Controlled medical device Program for bone strength analysis
JMDN code: 71041002
Software for evaluation of bone strength
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Finite Element Analysis can be applied to various researches even in medical field. MECHANICAL FINDER has been used by a lot of medical doctors and researchers in hospital, university and reserarch instituion for their wide-ranging researches. Some of the related papers and presentations are listed here.
Our experienced engineers can also develop the biomechanical model and perform the necessary analyses for you
The typical cost of such a service is:
Please, contact us for more detailed quotation.
Dr. Tomas Goldmann / Laboratory of Applied Computing, Czech Technical University, Prague
European support and sales team:
High level strategist for complex projects, with an emphasis on performance and vision. His tireless energy moves the whole team.
"Communication is always key"
I have been working for more than 20 years with nonlinear simulation of brittle materials and it is exciting to see the application of computational mechanics in medical science and directly helping individual persons.
Should You need any more information, please contact us.