抄録
We have developed a device placement simulator for endovascular treatment. In this study, we evaluated the coil embolization of an aneurysm using this simulation system. The model of the catheter and coil are constructed with viscoelastic springs and segments as the dynamic deformation of a flexible structure. The vessel is an elastic circular cylinder, whose shape is defined by the centerline and the radii. We consider the contacts between the coils, the catheter, the vessel and the aneurysm. We the investigated influences of the catheter's position on the coil's behavior. The catheter's position has a great influence on the coil's behavior. Depending on the position of the catheter, the coil is not inserted along the curved surface of the aneurysm. When the coil is not inserted along the curved surface of the aneurysm, the position of the coil is not stable.
