| ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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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 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 |
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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.
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Received: 04 September 2025
Revised: 23 October 2025
Accepted manuscript online: 05 November 2025
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PACS:
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43.40.+s
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(Structural acoustics and vibration)
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43.35.+d
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(Ultrasonics, quantum acoustics, and physical effects of sound)
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43.38.Fx
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(Piezoelectric and ferroelectric transducers)
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62.30.+d
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(Mechanical and elastic waves; vibrations)
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| Fund: 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). |
Corresponding Authors:
Jianzhong Guo, Shuyu Lin
E-mail: guojz@snnu.edu.cn;sylin@snnu.edu.cn
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Cite this article:
Cheng Chen(陈诚), Yi Wang(王怡), Huiqin Chen(陈慧琴), Chunlong Xu(徐春龙), Jianzhong Guo(郭建中), and Shuyu Lin(林书玉) Enhanced ultrasonic scalpel in longitudinal-bending coupled vibration based on symmetrical acoustic black hole beam structure 2026 Chin. Phys. B 35 074302
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