From April 9 to 12, 2026, the 40th China International Medical Equipment Design & Manufacturing Technology Exhibition (ICMD) was held as scheduled at the National Exhibition and Convention Center (Shanghai). As a specialized exhibition under CMEF focusing on upstream core components for medical devices, this year’s ICMD brought together numerous supply chain innovators from around the world. Among them, AUDIOWELL’s self-developed transducer for cutting and hemostatic knives, once exhibited, drew significant attention from ultrasonic scalpel manufacturers, R&D engineers, and industry media due to its outstanding performance and reliable technical solution, becoming a true “star product” at the booth.
Driven by the Inverse Piezoelectric Effect, Achieving Efficient Conversion from Electrical to Mechanical Energy
The core of an ultrasonic scalpel is the transducer – which converts electrical energy into high-frequency mechanical vibration, driving the blade to cut and coagulate tissue. AUDIOWELL’s transducer for cutting and hemostatic knives is based on the inverse piezoelectric effect of piezoelectric ceramics: when an alternating voltage is applied across the piezoelectric vibrator, polarization occurs inside the piezoelectric material, causing rapid deformation along the longitudinal direction, thus precisely converting electrical energy into mechanical energy and generating stable ultrasonic vibration.
Compared with conventional transducers, this self-developed product from AUDIOWELL achieves significant breakthroughs in key performance indicators. The ultrasonic frequency it generates is extremely stable and easy to control, meaning that during surgery, the blade vibration always remains at the optimal designed frequency, avoiding reduced cutting efficiency or the risk of thermal injury caused by frequency drift. At the same time, the product has a high D33 coefficient, providing the transducer with larger amplitude output and making cutting crisper and more decisive. The high Qm value (mechanical quality factor) represents extremely low mechanical loss, greatly improving energy conversion efficiency and minimizing excess heat, providing a solid hardware foundation for ultrasonic scalpels to achieve “precise cutting, low-thermal safety, and rapid coagulation.”
Four Features Directly Address Clinical Pain Points
Stable and easily controllable frequency: The ultrasonic output is clean with little drift, requiring no complex compensation circuits in the overall device design, resulting in higher reliability.
Large amplitude for sharp cutting: Benefiting from an excellent D33 coefficient, the mechanical displacement amplitude is ample, enabling rapid cutting of soft tissue, blood vessels, and other target tissues.
High efficiency and low heat generation: A high Qm value means that nearly all electrical energy is converted into effective mechanical energy, and the temperature rise of the transducer itself is extremely low, ensuring safety during prolonged surgeries.
Long service life and high durability: Excellent material formulation and structural design enable the transducer to maintain stable performance under repeated high-intensity operation, significantly reducing replacement frequency.
Together, these features address the core demands of clinical surgery – ensuring cutting speed while minimizing lateral thermal damage, achieving a “cold cutting” effect, thereby improving patient postoperative recovery quality.
Based on Self-Development, Supporting the Localization of High-End Medical Equipment
As a pioneer in the field of piezoelectric ceramics and sensing technology in China, AUDIOWELL has always been committed to driving innovation with core materials and fundamental processes. The successful development of this transducer for cutting and hemostatic knives not only breaks the long-standing reliance on imports for high-end ultrasonic scalpel transducers but also provides domestic medical device manufacturers with a self-reliant choice that offers excellent performance, stable supply, and fast response.
With the increasing penetration of ultrasonic scalpels in general surgery, urology, gynecology, thoracic surgery, and other fields, the requirements for transducer core components are becoming more stringent. AUDIOWELL’s impressive appearance at ICMD 2026 fully demonstrates the deep accumulation and innovation capability of Chinese piezoelectric technology enterprises in the high end medical component sector.
Looking ahead, AUDIOWELL will continue to deepen its work in piezoelectric energy conversion technology, working hand in hand with medical device manufacturers to bring more “Intelligently Made in China” ultrasonic scalpel systems to operating rooms around the world, contributing to precision medicine.
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