A handheld device and method for clearing obstructions from spray nozzles includes a housing, a gas valve system contained within the housing, and a nozzle body attachment structure. According to some preferred embodiment of the present invention, the structure contains a double LDD region, including a high energy implantation to form lightly doped region and a low energy implantation thereon to provide a low resistance path for current flow without degrading breakdown voltage. This nickel salicide process increases the annealing temperature range for which a continuous, thin nickel mono-silicide layer can be formed on silicon by salicidation. The method of the present invention serves as a supplement to or a replacement for conventional hysterectomy or ablationresection procedures used to treat menorrhagia. A slider having the valve body of the pressure control valve and the spool of the flow rate control valve is operated by a proportional solenoid, to thereby control a damping force for an extension stroke and a damping force for a compression stroke. The overcurrent is detected without providing a shunt resistor in the upstream of the inverter circuit, and miniaturization of a circuit substrate is achieved.