手术针穿刺软组织建模技术研究现状  

Research status of modeling technology for needle insertion into soft tissue

作　　者：岳鸿志[1,2] 邓建新[1,2] 周军[1,2] 李岩[1,2] 李丽红[1,2] 

机构地区：[1]山东大学机械工程学院,山东济南250061 [2]山东大学高效洁净机械制造教育部重点实验室,山东济南250061

出　　处：《中国医学物理学杂志》2016年第6期643-648,共6页Chinese Journal of Medical Physics

基　　金：国家自然科学基金(51375268);山东大学自主创新基金(2012ZD009)

摘　　要：软组织穿刺在临床医学中有着越来越多的应用需求,但穿刺过程中手术针与组织的相互作用和生物组织复杂性往往会导致穿刺误差产生。本文主要从穿刺力和穿刺误差两个方面介绍了国内外手术针穿刺软组织建模技术研究现状。所有研究都表明,轴向力可以分解为多种不同类型力,如刚性力、摩擦力和切割力。穿刺的误差主要由针体挠曲和组织变形两个因素引起。当前的学者们提出了各种不同的数学和有限元模型,对穿刺过程进行了分析,以求对穿刺力和误差进行预测,优化穿刺针设计和穿刺策略,从而提高穿刺的准确率。本文还对依照当前模型提出的一些穿刺策略进行简述,从而为软组织穿刺的研究和应用提供参考。Needle insertion into soft tissue has increasing application demand in clinic medicine. However, the insertion errors due to needle-tissue interaction and tissue complexity may affect the operation quality. In the paper, the current research status of modeling technology for needle insertion into soft tissue was introduced from two aspects, needle insertion forces and needle insertion errors. All the researches showed that the axial force of a needle during insertion is the composition of different forces, such as stiffness force, frictional force and cutting force. Needle insertion errors were mainly caused by needle deflection and tissue deformation. Currently, various mathematical and finite element models of the insertion process were put forward to improve the accuracy of insertion by predicting the insertion forces and errors, and optimizing the needle design and insertion techniques. The insertion techniques developed based on current models were briefly reviewed in the paper, providing references for the research and application of soft tissue insertion.

关 键 词：手术针穿刺 穿刺建模 穿刺力 针体挠曲 组织变形 综述 

分 类 号：R318.01[医药卫生—生物医学工程]