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.

Abstract: The present invention relates to a vortex bubble removing and cooling system for the electromagnetic shock wave generator in the lithotripter. The vortex bubble-removing and cooling system comprises a water-full cushion (17), a metal diaphragm (14) installed inside the chamber body (27) of the water cushion (17) and a coil (13) which is installed at the backside of the metal diaphragm (14). There is at least one first water nozzle (22) on the side wall of the chamber body (27) and a water suction tube (23) at the center of the chamber body (27). The first water nozzle (22) and the water suction tube (23) form a vortex-generating device. The vortex generated inside the chamber body will scour the surface of the metal diaphragm continuously so as to cool the heat and remove the air bubble. This will make the metal diaphragm be in good working condition and greatly increase the working life of the metal diaphragm and the coil.

Abstract: The present invention relates to a vortex bubble removing and cooling system for the electromagnetic shock wave generator in the lithotripter. The vortex bubble-removing and cooling system comprises a water-full cushion (17), a metal diaphragm (14) installed inside the chamber body (27) of the water cushion (17) and a coil (13) which is installed at the backside of the metal diaphragm (14). There is at least one first water nozzle (22) on the side wall of the chamber body (27) and a water suction tube (23) at the center of the chamber body (27). The first water nozzle (22) and the water suction tube (23) form a vortex-generating device. The vortex generated inside the chamber body will scour the surface of the metal diaphragm continuously so as to cool the heat and remove the air bubble. This will make the metal diaphragm be in good working condition and greatly increase the working life of the metal diaphragm and the coil.