抄録
This paper proposes a method for real time suture simulation of soft tissue by using corotational FEM. A proposed method is divided into two parts. First, simulaiton of the process of thread going through soft tissue was realized by collision detection between thread and soft tissue and by the penalty method to define reaction force between tissues. During suturing, self-collision between one part of the soft tissue and another part occured. Therefore, the penalty method was used to deal with the self-collision. Second, simulation of the process of a suture needle piercing into soft tissue was realized by collision detection between suture needle and soft tissue and by using a coarse method to update collision points to reduce calculation cost.
