Soft Tissue Cutting Based on Position Dynamics

In order to fit the development wave of virtual medical surgery, a soft tissue cutting model based on position dynamics is proposed. The particle-constrained tetrahedron is used to reconstruct the soft tissue part of the human body, and the facility and real-time operation is met through a visual interactive platform and force feedback calculation. The user can control the surgical instrument to reach the organ lesion area through the manipulation force feedback stroke area, and can also adjust the optimal position and posture of the instrument. Through experimental simulation, it is fully demonstrated that the model has good stability under increasing time steps, and at the same time, the higher computational efficiency is highlighted by expressing the applied force in the form of constraints, which can meet the high standards of human–computer interaction.