Ultrasonic oral cleaner

Abstract

The ultrasonic oral cleaner has a head including an ultrasonic oscillator disposed inside a base provided with an operating portion, the base is made of a flexible material, and the base is provided with the operating portion made of the flexible material and having a smooth top surface as an ultrasonic emitting surface.

1 . An ultrasonic oral cleaner comprising a head including an ultrasonic oscillator disposed inside a base, wherein the base is made of a flexible material, and the base is provided with an operating portion having a smooth top surface as an ultrasonic emitting surface and made of the flexible material. 
     
     
         2 . The ultrasonic oral cleaner according to  claim 1 , wherein an internal surface of the base is provided with a projecting portion so that the ultrasonic oscillator exposed in a space of the head is satisfactorily closely attached to the internal surface of the base. 
     
     
         3 . The ultrasonic oral cleaner according to  claim 1 , wherein the ultrasonic emitting surface of the operating portion is inwardly or outwardly bent. 
     
     
         4 . The ultrasonic oral cleaner according to  claim 1 , wherein the operating portion is formed on the base which is a cover member removably attached to the head provided with the ultrasonic oscillator. 
     
     
         5 . The ultrasonic oral cleaner according to  claim 1 , wherein brush bristles are arranged on the back surface of the operating portion of the head. 
     
     
         6 . The ultrasonic oral cleaner according to  claim 1 , wherein brush bristles are arranged on the back surface of the operating portion of the head, and inside the base of the head, an ultrasonic oscillator for the operating portion and an ultrasonic oscillator for the brush bristles are arranged, respectively. 
     
     
         7 . The ultrasonic oral cleaner according to  claim 1 , wherein brush bristles are arranged on the back surface of the operating portion of the head, inside the base of the head, an ultrasonic oscillator for the operating portion and an ultrasonic oscillator for the brush bristles are arranged, respectively, and the ultrasonic oscillator for the operating portion and the ultrasonic oscillator for the brush bristles are configured to emit ultrasonic waves having different frequencies, respectively. 
     
     
         8 . The ultrasonic oral cleaner according to  claim 1 , wherein the operating portion is formed integrally with the base.