Medical Use of Simulation

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.

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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.


  • All in one complete biomechanical analysis in one product, the CT data to strength analysis can be found all in one user-comfort tool
  • Quick and easy easy to make a comprehensive analysis of the femoral implant in a matter of minutes.
  • 3D model unique support generation of complex 3D models based on CT patient data
  • Stress Analysis quantitative determination of bone strength or attachment of the implant
  • Focus on Patient model is created for the selected patient directly from CT-data, including the inhomogeneous properties of the bone tissue


MECHANICAL FINDER includes all functions needed for CT-based Finite Element Analysis, that is, from loading DICOM data to analysis.


CT-based modeling

CT-based modeling enables constructing model with patient-specific bone geometry and density.


Implant Installation

Owing to a computer simulation, a position of an implant can be modified to achieve optimum one.


Inhomogenous Material Property

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 Support

Technical stuff support your analysis by responding your inquiry ranging from an operation procedure to a consultation of analysis.


Analysis Service

We produce your analysis of CT data according to your specifications and setting.

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Data Input


DICOM(Digital Imaging and Communications in Medicine) data such as CT and MRI can be imported.

Image data

3D-model can be constructed from a series of BMP, JPEG, and TIFF file.

ROI Extraction / Phantom setting

ROI Extraction

ROI(Region of Interest) extraction is performed by designating the area to be analyzed on CT image in 2D mode, and performing extraction or cutting in 3D mode.

Phantom setting

Phantom setting is possible that enables density value calibration.

Mesh Generation

Reposition of Bone (EE)

Correction of posture, osteotomy, and bone graft can be modeled with its inhomogeneous material properties.

Material Property

Inhomogeneous Materieal

Material properties of each element are calculated from CT value, then inhomogeneous material can be constructed. User-established conversion equation can be also applied.

Truss element (EE)

Truss element defined by relation between strain and tension can be modeled and useful for modeling of ligament.

Boundary Condition

Boundary Condition

20 groupings can be set for load and constraint area. Analysis with displacement control can be also performed.

Initial Velocity (EE)

Initial velocity can be set to each separated material for shock analysis.


Material Nonlinear Analysis

Material nonlinear analysis which handles fracture and plasticity of element can be performed.

Geometrical Nonlinear Analysis

Analysis with large deformation or rotation can be treated with geometrical nonlinear analysis.

Dydamic Analysis

Shock analysis or analysis with inertial force can be performed by dynamic analysis.

Contact Analysis (EE)

Contact condition can be applied at the boundary surface between materials with friction coefficient.

Display of Result

Vector Map

Vector of deformation, contact force, or tension of truss element can be visualized by arrows.

Tensor Map

Direction of principal stress or strain can be visualized to evaluate either compressive or tensile direction.

Data Extraction

Results or material properties of designated area can be extracted in numerical data. Extracted data can be output in CSV file format.

Fracture Map

With the material non-linear analysis, plastic, crushed, and cracked element can be displayed.


Graph Function

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.

Output Function

Image, video, and 3D-animation of display screen can be output. Surface geometry of model can be output in STL/DXF file format.


Standard Edition

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

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.

Function List by each Edition

Item Standard Extended
Input File DICOM
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
Multi-core meshing
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
Contact 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
Measurement function
Tools Input from image file(BMP/JPEG/TIFF)
Text output of project information
Batch(meshing & analysis) processing program
Remote batch processing program

Licence Type

  • Node lock license
    • MECHANICAL FINDER is installed into fixed computer

  • Floating license
    • Server has a floating license and client computers launch MF by using server’s license via network
    • Only one (up to number of license) computer can launch MF at once
    • Analysis can be performed on each computer at once
Recommended Hardware Requirements
OS Windows 7 64bit
Windows 8.1 64bit
Windows 10 64bit
CPU Intel® CoreTM i7
Intel® Xeon®
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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User's Applications

  • Hospital: Orthopedics, Dentistry, Radiology
  • Academic: Faculty of Medicine, Dentistry, Veterinary medicine, Engineering


Example Videos

Published Papers

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.

Analysis Service

Our experienced engineers can also develop the biomechanical model and perform the necessary analyses for you

The typical cost of such a service is:

  • Single model: 1000€ – 5000€,
  • depending on difficulty modifying condition: 500€

Please, contact us for more detailed quotation.


  • "Mechanical Finder is a great program, where all necessary tools are in a single package. This is exactly what we were searching for in our project on minimally invasive treatment of the femoral neck osteoporosis."

    Dr. Tomas Goldmann / Laboratory of Applied Computing, Czech Technical University, Prague

Our Team

European support and sales team:

Petr Hrdý

High level strategist for complex projects, with an emphasis on performance and vision. His tireless energy moves the whole team.

"Communication is always key"

Jan Červenka

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.

Get In Touch

Should You need any more information, please contact us.

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