title: Effect of vibration frequency on biopsy needle insertion force.
abstract: Needle insertion is critical in many clinical medicine procedures, such as biopsy, brachytherapy, and injection therapy. A platform with two degrees of freedom was set up to study the effect of vibration frequency on needle insertion force. The gel phantom deformation at the needle cutting edge and the Voigt model are utilized to develop a dynamic model to explain the relationship between the insertion force and needle-tip velocity. The accuracy of this model was verified by performing needle insertions into phantom gel. The effect of vibration on insertion force can be explained as the vibration increasing the needle-tip velocity and subsequently increasing the insertion force. In a series of needle insertion experiments with different vibration frequencies, the peak forces were selected for comparison to explore the effect of vibration frequency on needle insertion force. The experimental results indicate that the insertion force at 500Hz increases up to 17.9% compared with the force at 50Hz.
authors.affiliation: School of Mechanical Engineering, Shandong University, Jinan 250061, China; Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, Shandong University, Jinan 250061, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Tan
authors.affiliation: Cancer Prevention Center, Qilu Hospital of Shandong University, Jinan 250061, China.
authors.forename: Xuemei
authors.initials: X
authors.lastname: Qin
authors.affiliation: School of Mechanical Engineering, Shandong University, Jinan 250061, China; Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, Shandong University, Jinan 250061, China. Electronic address: zhangqh@sdu.edu.cn.
authors.forename: Qinhe
authors.initials: Q
authors.lastname: Zhang
authors.affiliation: School of Mechanical Engineering, Shandong University, Jinan 250061, China; Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, Shandong University, Jinan 250061, China.
authors.forename: Hongcai
authors.initials: H
authors.lastname: Zhang
authors.affiliation: School of Mechanical Engineering, Shandong University, Jinan 250061, China; Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, Shandong University, Jinan 250061, China.
authors.forename: Hongjian
authors.initials: H
authors.lastname: Dong
authors.affiliation: School of Mechanical Engineering, Shandong University, Jinan 250061, China; Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, Shandong University, Jinan 250061, China.
authors.forename: Tuodang
authors.initials: T
authors.lastname: Guo
authors.affiliation: School of Mechanical Engineering, Shandong University, Jinan 250061, China; Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, Shandong University, Jinan 250061, China.
authors.forename: Guowei
authors.initials: G
authors.lastname: Liu
mesh_terms: D001707:Biopsy, Needle / Q000295:instrumentation*; D055595:Mechanical Phenomena; D014732:Vibration
keywords: Insertion force; Needle insertion; Vibration; Voigt model