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Simulation Module
The Mimics Simulation Module is an open toolkit that enables you to perform a detailed analysis of your data using the anthropometric analysis templates, alter your 3D objects with the cutting or reposition operations or simulate and explain surgical procedures for your implant design.
Anthropometric Analysis
To perform an anthropometric analysis, first choose a template from the list. The appropriate points (landmarks), planes and/or measurements need to be indicated. Planes and measurements are automatically created once the points they depend on are created. If you do not find a template that coincides with your requirements you can create your own template.
Landmarks list
New landmarks can be created, copied, edited or deleted. Each landmark can have some default properties that can be set when creating the landmark or by editing an existing landmark using the 'Edit' function. The properties that can be set are the landmark name, its colour and a description.
Planes list
The second list gives you the possibility to define one or more planes of analysis. To define a plane you must first have defined points, or -alternatively- you can define a plane based on other planes you have already created in the template.
Measurements list
One or more measurements can be added to the template. Both distances and angles can be measured. For distance either the distance between two points or the distance between a point and a plane can be measured. As for an angle, this can be measured using 3 points or using 2 lines (defined by 2 points each). Note that measurements can only be done using points or planes that have already been defined in the template.
Surgical procedure simulation
The Mimics Simulation Module offers you a powerful 3D package for all kinds of surgery simulation applications. Various tools and STL operations for simulating osteotomy and distraction surgeries are available.
Example 1: Cranial implant
The Mimics Simulation Module with its Cut, Mirror and Repositioning operations allows you to define the required shape of a cranial implant by mirroring one side of the patient's skull.
1 Indicating cutting path on the intact side
2 Hole with mirrored part from intact side
3 Cut and split operations
4 Mirror operation, user interface
Cut
Two Cutting methods are available: a Polyline Cut and a Polyline Cut with Cutting Plane.
The Polyline Cut operation cuts the selected objects with a polyplane. The user indicates the polyplane by drawing a polyline. The depth of the polyplane is along the viewing direction. When the indicated polyline does not intersect the selected objects, this operation has no effect.
The Polyline Cut with Cutting Plane is a freeform cutting tool, you can draw your cutting path in 3D or in 2D. The cutting path will be visible both in 3D and in 2D.
Split
This operation splits the selected objects into their non-connected parts and generates a new 3D object for each of these parts.
Merge
This operation merges the selected objects into one part.
Mirror
The Mirror function mirrors all selected objects around an indicated plane or around an existing plane (from the anthropomorphic analysis or from MedCAD). The user can select one or more objects to be mirrored.
Reposition
Objects can be either translated or rotated. For each type of manipulation, positioning can be adjusted to suit your needs.
Several restrictions on the manipulation of an object can be chosen. Possible restrictions are: translating over an axis, translating over a plane, rotating over an axis and rotating over a point. Of course unrestricted manipulation is also an option.
The registration option allows you to easily reposition objects using landmarks.
Objects can also be manipulated using the mouse.