ELECTRIC TOOTHBRUSH AND ELECTRIC TOOTHBRUSH HEAD Russian patent published in 2013 - IPC A61C17/22 

FIELD: personal use articles.

SUBSTANCE: group of inventions relates to the field of hygiene and is intended for teeth cleaning. The electric toothbrush head contains a bristle holder (7) including means for the bristle holder (7) fixation so that to enable movement, multiple bristle bunches (11, 13a, 13b, 13c) positioned on the said bristle holder (7) in the form of at least two rings or areas enclosed in each other. The outer ring or area (12) contains outer bristle bunches (11) having an elongated cross section; the said outer bristle bunches (11) are mounted on opposite sides of the outer ring or area. The middle ring or area (14) enclosed in the outer ring or area (12) contains several middle bristle bunches (13a, 13b), each of them having a cross section that is less than that of the outer bristle bunches (11). The central area of the said middle ring or area (14) contains at least one section consisting of two central bristle bunches (13c) having a cross section in excess of that of the middle bristle bunches (13a, 13b) of the middle ring or area (14). Each of the central bristle bunches (13c) has an elongated shape, in particular - that of a crescent, a banana or a living organism kidney, such central bristle bunches complementing each other so that the central area bristle section has an approximately round, oval or elliptical shape.

EFFECT: ensuring high density of bristles on the holder and simultaneous preservation of the possibility to use the anchor method for bunches fixation.

16 cl, 28 dwg