中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (24): 3818-3823.doi: 10.3969/j.issn.2095-4344.0832

• 肌肉肌腱韧带组织构建 tissue construction of the muscle, tendon and ligament • 上一篇    下一篇

超声振动对软组织穿刺过程中摩擦力的影响

魏鹏鹏1,2,张勤河1,2,谭  磊1,2,徐英强1,2,张洪才1,2   

  1. 1山东大学机械工程学院,山东省济南市  250061;2山东大学机械工程学院高效洁净机械制造教育部重点实验室,山东省济南市   250061
  • 收稿日期:2017-12-08
  • 通讯作者: 张勤河,博士,教授,山东大学机械工程学院,山东省济南市 250061;山东大学机械工程学院高效洁净机械制造教育部重点实验室,山东省济南市 250061
  • 作者简介:魏鹏鹏,男,1991年生,山东省安丘市人,汉族,山东大学在读硕士,主要从事组织切削理论及医疗装备设计开发的研究。
  • 基金资助:

    国家自然科学基金(51475274)

Ultrasonic vibration influences the friction during needle insertion into soft tissues

Wei Peng-peng1, 2, Zhang Qin-he1, 2, Tan Lei1, 2, Xu Ying-qiang1, 2, Zhang Hong-cai1, 2   

  1. 1School of Mechanical Engineering, Shandong University, Jinan 250061, Shandong Province, China; 2Key Laboratory of High Efficiency and Clean Mechanical Manufacture (Ministry of Education), School of Mechanical Engineering, Shandong University, Jinan 250061, Shandong Province, China
  • Received:2017-12-08
  • Contact: Zhang Qin-he, Ph.D., Professor, School of Mechanical Engineering, Shandong University, Jinan 250061, Shandong Province, China; Key Laboratory of High Efficiency and Clean Mechanical Manufacture (Ministry of Education), School of Mechanical Engineering, Shandong University, Jinan 250061, Shandong Province, China
  • About author:Wei Peng-peng, Master candidate, School of Mechanical Engineering, Shandong University, Jinan 250061, Shandong Province, China; Key Laboratory of High Efficiency and Clean Mechanical Manufacture (Ministry of Education), School of Mechanical Engineering, Shandong University, Jinan 250061, Shandong Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 51475274

摘要:

文章快速阅读:
文题释义:
活检:活体组织检查简称“活检”,亦称外科病理学检查,简称“外检”;是指应诊断、治疗的需要,从患者体内切取、钳取或穿刺等取出病变组织,进行病理学检查的技术。
超声振动:人类耳朵能听到的声波频率为20-20 000 Hz,因此,把频率高于20 000 Hz的声波称为“超声波”。超声振动即振动频率高于20 000 Hz的振动,由压电陶瓷的压电效应实现。
摘要
背景:
摩擦是非常复杂的非线性现象,软组织穿刺过程中的摩擦力是针管与组织间相互作用力的重要组成部分,对穿刺活检取样效率和精度有重要影响。但是目前有关超声振动对穿刺过程中摩擦力的研究较少。
目的:明确超声振动辅助穿刺软组织过程中振动振幅对摩擦力的影响规律,并验证摩擦模型的正确性,为超声振动辅助取样装置的设计和开发提供理论依据,提高穿刺活检取样效率和精度。
方法:基于LuGre模型,引入超声振动因素,建立活检针表面与软组织之间的摩擦模型。通过新摩擦模型分析附加超声振动后摩擦力减小的原因,并通过实验验证摩擦力随振幅增大的变化规律并证明理论模型的正确性。
结果与结论:附加超声振动后,软组织穿刺过程中的摩擦力显著减小。摩擦力随振幅的增大基本成指数为-1的幂函数关系减小。结果显示基于LuGre模型的新摩擦模型能够正确反映超声振动辅助穿刺软组织穿刺过程中振幅对摩擦力的影响规律。超声振动辅助穿刺软组织过程中振幅对摩擦力的影响规律得到明确。

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程
ORCID: 0000-0002-1288-3213(魏鹏鹏)

关键词: 穿刺活检, 软组织, 超声振动振幅, 摩擦力, LuGre模型, 组织构建

Abstract:

BACKGROUND: Friction that appears during soft tissue puncturing process is a very complex non-linear phenomenon, and it is an important part of interaction force between the needle and soft tissue. Therefore, it affects the efficacy and accuracy of puncture biopsy. However, studies on the effect of ultrasonic vibration on friction during the needle insertion process are few.
OBJECTIVE: To clarify the effect of ultrasonic vibration amplitude on the friction force during soft tissue puncturing and verify the correctness of the friction model, thereby providing the theoretical basis for the development of ultrasonic vibration-assisted sampling device and improving efficiency of puncture biopsy.
METHODS: A new ultrasonic vibration-added model was introduced based on the LuGre model, and the reason for a decrease in the friction force after added the ultrasonic vibration was analyzed through the friction model. The varying pattern of friction with the amplitude increasing was obtained and the correctness of theoretical model was certified.
RESULTS AND CONCLUSION: The friction during the needle insertion process significantly reduced after added with ultrasonic vibration. The frictional force decreasing relation with the increasing of amplitude was power function. These results reveal that the friction model based on the LuGre model can correctly reflect the influence of the amplitude on the friction during ultrasonic vibration-assisted needle insertion into soft tissues.

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程

Key words: Biomechanics, Biopsy, Needle, Friction, Ultrasonics, Vibration, Tissue Engineering

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