We introduce a new model for connective tissue damage in blunt dissection, which is a very important process in neurosurgery simulation. Specifically, the tool-tissue interaction between the instrument and connective tissue is incorporated into the model of connective tissue damage. This damage develops with the evolution criterion due to the effect of the external load. The tetrahedral mesh in the soft tissue model is removed for the representation of rupture as the damage accumulates to the threshold value. Analysis and experiments show that the connective tissue damage model provides stable, visually realistic results for the simulation of the connective tissue rupture process. The stiffness of the connective tissue decreases as the damage accumulates. The proposed model for connective tissue damage was incorporated into the development of a neurosurgery simulator, in which blunt dissection of a brain tumor was simulated.

中文翻译：

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神经外科仿真中脑肿瘤钝性解剖的结缔组织损伤模型。

我们引入了钝性解剖中结缔组织损伤的新模型，这是神经外科模拟中非常重要的过程。具体地，器械与结缔组织之间的工具-组织相互作用被结合到结缔组织损伤的模型中。由于外部负载的影响，这种损坏会随着演变标准而发展。当损伤累积到阈值时，将软组织模型中的四面体网格移除以表示破裂。分析和实验表明，结缔组织损伤模型为结缔组织破裂过程的模拟提供了稳定，视觉逼真的结果。随着损伤的累积，结缔组织的硬度降低。