Towards the next generation surgical simulators
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(6) . Aim: provide in real time realistic force feedback during cutting in surgical simulation. Requirements for surgical simulation Segmentation & geometry generation (SimpleWare, Prof. Philip Young, Leverhulme RAENg fellow). • Handle extremely complex organ geometries • Simulate cutting, prodding, etc. in real time • Reproduce material response faithfully for a realistic surgical experience during simulation • Control the error and validate results. Predict realistic ic reaction n force. Highly y variable material response p at the coarse scale (organ level) Mesh generation (SimpleWare) & Implicit Geometry. Proposed paradigm • Avoid meshing complex boundaries through implicit definitions of the geometry at the coarse and fine scales • Simulate cutting without meshing or remeshing and employ adaptive model order reduction to reduce the computational time by several orders of magnitude on parallel supercomputers • Handle material response at the fine scale where variability is reduced through a multiscale approach • Estimate the approximation error to suitably adapt the mesh . . . . . . Reduced variability in material response at the fine scale Damage and failure leading to cuts at the coarse scale.
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