Proposal of an ultrasonic assisted electromagnetic ballistic lithotripter based on Langevin ultrasonic transducer

With the steady rise in the global incidence of urinary calculi, the demand for effective treatment modalities has correspondingly increased. An ultrasonic assisted electromagnetic ballistic lithotripter based on a Langevin transducer was designed and developed. To meet the requirements of medical device design and lithotripsy applications, a single probe, dual-energy configuration was successfully implemented. The lithotripter was fabricated, and its performance was characterized using an impedance analyzer, a laser Doppler vibrometer, and a high-speed camera. Penetration experiments on artificial calculi under ultrasonic-only operation were further conducted to verify the feasibility and effectiveness.