The lithotripter breaks the stone with minimal collateral damage to the surrounding soft tissue. The patient is well sedated and lies down on the apparatus bed with the coupling device at the level of the stone. Fluoroscopic and ultrasound imaging is used to localize and monitor stone fragmentation.
The sound waves generated by the generator is directed and focused on to the stone. The treatment usually starts at the lowest power level with a frequency of sixty shocks per minute and gradually moves to a higher level so that the stones are fragmented to sand like particles without damaging the kidney.
The procedure is stopped once the operator is satisfied with the level of fragmentation. We rarely give more than 1500 shocks in one sitting.