ELECTRICAL TOOTH BRUSH Russian patent published in 2012 - IPC A61C17/22 

FIELD: medicine.

SUBSTANCE: group of inventions refers to medicine, particularly hygiene and aims at tooth brushing. An electrical tooth brush comprises a body segment grasped by a hand during tooth brushing; a segment for introducing into an oral cavity; a connective segment coupling the body segment and the segment for introducing into the oral cavity; an eccentric roller; and an electric motor placed on the connective segment and rotating the eccentric roller for generating the tooth brush vibration. The segment for introducing into the oral cavity comprises a brush on its front end and is inclined towards a back surface of the brush from its front end to the body segment. The front end segment of the segment for introducing into the oral cavity adjoins a line producing an imaginary line coupling centroids of cross-section figures perpendicular to a longitudinal direction of the body segment. The connective segment is inclined towards the back surface of the brush from the front end of the body segment to the brush. The rotating roller of the electric motor and the eccentric roller are coupled by a flexible rod having only one hinge point. The group of inventions involves the second version of implementation of the electric tooth brush wherein the rotating roller itself is flexible and has only one hinge point.

EFFECT: provided high-quality back tooth brushing.

6 cl, 17 dwg