Stable Soft-Tissue Fracture Simulation for Surgery Simulator

被引：5

作者：

Nakayama, Masano ^{[1
]}

Abiko, Satoko ^{[2
]}

Jiang, Xin ^{[2
]}

Konno, Atsushi ^{[2
]}

Uchiyama, Masaru ^{[2
]}

机构：

[1] Tohoku Univ, Grad Sch Engn, Dept Aerosp Engn, 6-6-01 Aoba Yama, Sendai, Miyagi 9808579, Japan

[2] Tohoku Univ, Grad Sch Engn, Dept Mech Syst & Design, Sendai, Miyagi 9808579, Japan

来源：

JOURNAL OF ROBOTICS AND MECHATRONICS | 2011年 / 23卷 / 04期

关键词：

fracture; surgery simulation; FEM; soft tissue;

D O I：

10.20965/jrm.2011.p0589

中图分类号：

TP24 [机器人技术];

学科分类号：

080202 ; 1405 ;

摘要：

Soft-tissue fracture simulation is a key to surgery simulation virtually reproducing cutting, dissection, and removal. Soft-tissue fracture is modeled by finite element fracture in which elements are removed if their stress exceeds a specified fracture stress. Removing elements without considering connection to adjacent elements may produce structurally unstable elements, that cause computational instability. We propose geometric limitation and element fracture method to avoid this instability. We confirmed the feasibility of our proposals by comparing blunt dissection simulation results to blunt dissection experiment results using agar.

引用

页码：589 / 597

页数：9

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