Development of mechanical modeling techniques of human abdominal structure to aid surgery

2015 Fiscal Year Final Research Report

• Project/Area Number: 25600155
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Computational science
• Research Institution: Yokohama National University
• Principal Investigator: Yamada Takahiro 横浜国立大学, 環境情報研究院, 教授 (40240022)
• Co-Investigator(Kenkyū-buntansha): MATSUI Kazumi 横浜国立大学, 大学院環境情報研究科, 准教授 (00377110) ; OGATA Masato 横浜市立大学, 大学院医学研究科, 客員教授 (70501154)
• Co-Investigator(Renkei-kenkyūsha): KUBOTA Yoshinobu 横浜市立大学, 大学院医学研究科, 教授 (10106312)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: バイオメカニクス / 手術支援 / 力学モデル / 人腹腔 / 生体計測

Outline of Final Research Achievements

The objective of this research project is to develop a mechanical model representing the entire abdominal structure for application to the surgical simulator and navigation system. Abdominal organs are modelled by the pressure stabilized linear tetrahedron element and membrane tissues such as mesentery are represented by the linear triangle elastic membrane element with initial tension. Contact algorithm is applied to evaluate interaction between organs and membrane tissues. For geometrical modelling, an algorithm to generate an initial state of organs and membranes, in which the self-equilibrium is satisfied and membranes are formed as closed surfaces, is developed.
Father a measurement technique to obtain mechanical properties for these numerical simulations is investigated.

Free Research Field

計算力学