In endovascular interventional surgery, the virtual-reality (VR) simulator is critical for robotic
catheter operating system since it offers physicians visual information between catheter and vessel.
In spite of most VR systems using mass-spring to formulate vascular physical model, the uniform
deformation doesn’t satisfy the vascular characteristics. In order to simulate the vascular deformation
more vividly, we introduce standard linear solid model to formulate its physical model and determine
this model’s parameters based on vascular wall elasticity analysis. In this way, the vascular physical model deforms according
to vascular radius and material properties. In addition, so as to provide the vascular radius information for parameter
identification process, we adopt discrete curvature estimation based on meshed triangle method in VR system. Finally,
the VR simulator equipped with the parameters determined stand linear solid model is used to describe vascular deformation
which is related to its radius and material characteristics.
Keywords: Blood vessel deformation, robotic catheter operating system, standard linear solid model, vessel wall elastic analysis,
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