Abstract: An extracorporeal shock wave lithotripter and a charging and discharging circuit for an extracorporeal shock wave lithotripter are disclosed. The charging circuit is formed by a resistor and a capacitor, and the discharging circuit is formed by the capacitor, a high-voltage switch and a shock wave source apparatus. The capacitance of the capacitor is 1.5 ?F˜2.5 ?F, the pressure peak value of the focus of shock waves generated by discharging to the shock wave source apparatus by the capacitor is 6 Mpa˜30 MPa, a positive pressure period of the bottom pulse width is 3 ?s and a negative pressure period is 5 ?s.

Abstract: An extracorporeal shock wave lithotripter and a charging and discharging circuit for an extracorporeal shock wave lithotripter are disclosed. The charging circuit is formed by a resistor and a capacitor, and the discharging circuit is formed by the capacitor, a high-voltage switch and a shock wave source apparatus. The capacitance of the capacitor is 1.5 ?F˜2.5 ?F, the pressure peak value of the focus of shock waves generated by discharging to the shock wave source apparatus by the capacitor is 6 Mpa˜30 MPa, a positive pressure period of the bottom pulse width is 3 ?s and a negative pressure period is 5 ?s.