CAVITATION PROCESS IMPROVEMENT FOR EXTRACORPOREAL SHOCK WAVE LITHOTRIPTER (ESWL) SYSTEM

摘要

This paper presents a study for the efficiency improvement of a modified extracorporeal shock wave lithotripter (ESWL) system utilized for disintegration of renal calculi. When a shock wave generated by an extracorporeal shock wave lithotripter (ESWL) interacts with a solid, it creates cavitation bubbles at the interface between the solid and the surrounding liquid. The implosion of the cavitation bubbles plays an important role in the disintegration of renal calculi. The stresses generated by the bubble implosions are larger than those generated during incidence of the primary shock wave. Extracorporeal shock wave lithotripter system generates cavitation bubbles that have essential role in the disintegration of renal calculi.