MONO-BUNCH NOZZLE FOR ELECTRIC TOOTHBRUSH Russian patent published in 2022 - IPC A46B9/04 A61C15/00 

FIELD: oral care.

SUBSTANCE: invention relates to oral hygiene means, in particular to nozzles for electric toothbrushes; it can be used in the industry in the production of toothbrushes. A nozzle for an electric toothbrush consists of an elongated case, one end of which is equipped with an attachment for the connection to a toothbrush handle, a head attached to the second part of the case, and a working part, which is a mono-bundle of elastic fibers, cylindrical at the base and narrowing to the end. The mono-bundle is formed by concentrical rings of fibers, the length of which in each separate ring is the same or different from the length of fibers in neighboring rings. The narrowing of the working part has a form of a truncated cone, the side surface of which forms an angle of 45 degrees with the base, so that the length of fibers gradually increases from 4 mm on the periphery to 7 mm at the center, and the upper base of the cone has a diameter of 1 mm. An additional feature of the nozzle is that fibers of the working part have variable rigidity increasing from the edge to the center.

EFFECT: simplification of the toothbrush design, and reduction in the risk of gum injury, while maintaining high quality of cleaning of hard-to-reach gaps and gingival pockets.

9 cl, 4 dwg