Patent ID: 9579174
Date: 2017-02-28
CPC Classifications: A61C

Claim:
1. A water-flow ultrasonic oral-cavity cleaning device to clean an oral cavity ultrasonically by a water-flow of cleaning liquid in which ultrasonic waves are propagated, comprising: a case comprising an ultrasonic transducer to propagate the ultrasonic waves into the cleaning liquid, a transducer mounting part provided at one end of the case to mount the ultrasonic transducer, a supply port to supply the cleaning liquid to a vibrating surface of the ultrasonic transducer, an outlet port provided on an apical end of the case to emit water flow of the cleaning liquid, the apical end tapered toward an end of the case opposite to the apical end, a cleaning-liquid supplying device comprising a cleaning-liquid tank that holds the cleaning liquid, a pump that is connected to the cleaning-liquid tank and a supply tube that connects the pump to a supply port of the transducer case, wherein the cleaning liquid is supplied within the case upon activating the pump, and a cleaning-liquid discharging device comprising suction bodies, each with a suction tube, that are connected to suction ports, wherein used cleaning liquid after ultrasonically cleaning an oral cavity is sucked by the suction bodies and then discharged, wherein an oscillation frequency to activate the ultrasonic transducer is 100 kHz or more and 3 MHz or less, and a diameter of the ultrasonic transducer is 50 mm or less, and a power supply to the ultrasonic transducer is 100 W or less.