TOOTHBRUSH Russian patent published in 2000 - IPC

FIELD: sanitary and hygienic articles. SUBSTANCE: toothbrush has resilient head with pair of opposite surfaces. Bristles are embedded into one of opposite surfaces, and linear or nonlinear channels are extending transverse to this surface. Other surface is also provided with at least one linear or nonlinear channel. Channels are partially filled with elastomeric material. When toothbrush is in unstressed normal position, bristle free ends extending along its longitudinal axis have concave profile. EFFECT: increased efficiency and simplified construction. 4 cl, 12 dwg