中国物理B ›› 2026, Vol. 35 ›› Issue (7): 74302-074302.doi: 10.1088/1674-1056/ae1b7a

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Enhanced ultrasonic scalpel in longitudinal-bending coupled vibration based on symmetrical acoustic black hole beam structure

Cheng Chen(陈诚)1,2,†, Yi Wang(王怡)2,†, Huiqin Chen(陈慧琴)2, Chunlong Xu(徐春龙)1, Jianzhong Guo(郭建中)2,‡, and Shuyu Lin(林书玉)2,§   

  1. 1 School of Science, Chang'an University, Xi'an 710064, China;
    2 Shaanxi Key Laboratory of Ultrasonics, Institute of Applied Acoustics, Shaanxi Normal University, Xi'an 710119, China
  • 收稿日期:2025-09-04 修回日期:2025-10-23 接受日期:2025-11-05 发布日期:2026-07-15
  • 通讯作者: Jianzhong Guo, Shuyu Lin E-mail:guojz@snnu.edu.cn;sylin@snnu.edu.cn
  • 基金资助:
    Project supported by the Key Program of the National Natural Science Foundation of China (Grant No. 12534018) and the General Programs of the National Natural Science Foundation of China (Grant Nos. 12174240 and 12574498).

Enhanced ultrasonic scalpel in longitudinal-bending coupled vibration based on symmetrical acoustic black hole beam structure

Cheng Chen(陈诚)1,2,†, Yi Wang(王怡)2,†, Huiqin Chen(陈慧琴)2, Chunlong Xu(徐春龙)1, Jianzhong Guo(郭建中)2,‡, and Shuyu Lin(林书玉)2,§   

  1. 1 School of Science, Chang'an University, Xi'an 710064, China;
    2 Shaanxi Key Laboratory of Ultrasonics, Institute of Applied Acoustics, Shaanxi Normal University, Xi'an 710119, China
  • Received:2025-09-04 Revised:2025-10-23 Accepted:2025-11-05 Published:2026-07-15
  • Contact: Jianzhong Guo, Shuyu Lin E-mail:guojz@snnu.edu.cn;sylin@snnu.edu.cn
  • Supported by:
    Project supported by the Key Program of the National Natural Science Foundation of China (Grant No. 12534018) and the General Programs of the National Natural Science Foundation of China (Grant Nos. 12174240 and 12574498).

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摘要： Modern minimally invasive and robotic intelligent surgeries require the miniaturization of ultrasonic scalpels (USs), resulting in a compromise in performance, which is currently an urgent technological challenge needing a breakthrough. Additionally, acoustic black holes (ABHs) have attracted widespread attention for their unique ability to capture and focus waves. Hence, a novel enhanced ultrasonic scalpel (EUS) based on symmetrical ABH beam structure in coupled vibration is proposed, capable of achieving strong, cumulative amplification of the amplitude on a short blade and effectively mitigating the performance loss caused by miniaturization. Through numerical modeling, the longitudinal and bending vibration modes of the EUS are coupled at the same frequency by adjusting the blade size. Theoretical modeling results preliminarily verify the design feasibility of the simulation and explain the physical mechanism by which the ABH effect enhances the EUS. Experimental results demonstrate that the EUS achieves a maximum vibration displacement nearly 400% greater than that of the conventional ultrasonic scalpel (CUS), along with the capability for two-dimensional cutting. This research provides theoretical and experimental references for the development of high-performance ultrasonic medical devices and explores the potential applications of ABHs in ultrasonic technology.

关键词: ultrasonic scalpel, acoustic black hole, coupled vibration, equivalent circuit, transfer matrix

Abstract: Modern minimally invasive and robotic intelligent surgeries require the miniaturization of ultrasonic scalpels (USs), resulting in a compromise in performance, which is currently an urgent technological challenge needing a breakthrough. Additionally, acoustic black holes (ABHs) have attracted widespread attention for their unique ability to capture and focus waves. Hence, a novel enhanced ultrasonic scalpel (EUS) based on symmetrical ABH beam structure in coupled vibration is proposed, capable of achieving strong, cumulative amplification of the amplitude on a short blade and effectively mitigating the performance loss caused by miniaturization. Through numerical modeling, the longitudinal and bending vibration modes of the EUS are coupled at the same frequency by adjusting the blade size. Theoretical modeling results preliminarily verify the design feasibility of the simulation and explain the physical mechanism by which the ABH effect enhances the EUS. Experimental results demonstrate that the EUS achieves a maximum vibration displacement nearly 400% greater than that of the conventional ultrasonic scalpel (CUS), along with the capability for two-dimensional cutting. This research provides theoretical and experimental references for the development of high-performance ultrasonic medical devices and explores the potential applications of ABHs in ultrasonic technology.

Key words: ultrasonic scalpel, acoustic black hole, coupled vibration, equivalent circuit, transfer matrix

中图分类号:  (Structural acoustics and vibration)

  • 43.40.+s
43.35.+d (Ultrasonics, quantum acoustics, and physical effects of sound) 43.38.Fx (Piezoelectric and ferroelectric transducers) 62.30.+d (Mechanical and elastic waves; vibrations)