Patent ID: 9700394
Date: 2017-07-11
CPC Classifications: A61C

Claim:
1. A dental ultrasonic cleaning device for cleaning teeth or dentures ultrasonically by emitting ultrasonic waves through a cleaning-liquid to a cleaning-target comprising: an ultrasonic-wave transducer for generating the ultrasonic waves; an ultrasonic-wave pro propagating unit for propagating the ultrasonic waves to an ultrasonic-wave emitting surface at a tip-end side of the ultrasonic-wave propagating unit; a liquid-reservoir part for temporarily reserving the cleaning-liquid between a surface of the cleaning-target and the ultrasonic-wave emitting surface in a state of being in contact with the cleaning target, the liquid-reservoir part being provided in such a manner as to surround the ultrasonic-wave emitting surface; a liquid-supply tube for supplying the cleaning-liquid to the liquid-reservoir part; a suction tube having a liquid-suction pat and for sucking and draining the cleaning-liquid that had been used during the ultrasonic cleaning through the liquid-suction part, the liquid-suction part being disposed at a predetermined distance from the liquid reservoir part; a handpiece adapted to be handled by an operator, the handpiece comprising a main-arm unit to house the ultrasonic-wave transducer and the ultrasonic-wave propagating unit, and a secondary-arm unit having a tip-end portion by which the cleaning-target is gripped between the liquid-reservoir part at a tip-end of the main-arm unit and the secondary-arm unit, and a liquid-vacuuming part is provided at a tip-end of the secondary-arm unit; an ultrasonic-wave oscillator for activating the ultrasonic-save transducer; a cleaning-liquid supplying device for supplying the cleaning-liquid to the liquid-supply tube; a cleaning-liquid vacuuming-and-discharging device for vacuuming and discharging the cleaning-liquid through the suction tube; a sensor for detecting the cleaning-target being gripped by and between the liquid-reservoir part of the main-arm unit and the cleaning-liquid vacuuming part at the tip-end of the secondary-arm unit; a control device for controlling at least one of the ultrasonic-wave oscillator, the cleaning-liquid supplying device, or the cleaning-liquid vacuuming-and-discharging device, according to the detection by the sensor; wherein the handpiece has a stapler structure that the base-end of the secondary-arm unit is rotatably connected to the main-arm unit; and further wherein the sensor detects a rotation-angle of the secondary-arm unit and transmits a detection result to the control device for the control device to activate the ultrasonic-wave oscillator, the cleaning-liquid supplying device, and the cleaning-liquid vacuuming-and-discharging device when the rotation-angle of the secondary-arm unit is below a set value, or to deactivate the ultrasonic-wave oscillator, the cleaning-liquid supplying device, and the cleaning-liquid vacuuming-and-discharging device when the rotation-angle of the secondary-arm unit exceeds the set value.