Patent ID: 8060972

Claim:
A toothbrush which comprises an elongate handle with a first end connected to a toothbrush head from which tooth cleaning elements projecting in a bristle direction transverse to the longitudinal direction, to define a longitudinal head-handle direction and with a longitudinally opposite second end, with a neck part longitudinally between the head and handle, there being a longitudinally intermediate point between the first and second ends, a first part of the handle being between the first end and the intermediate point, and a second part of the handle being between the second end and the intermediate point, the handle comprising at least three longitudinally elongate flexible spines each arranged at the apexes of a polygon constructed in a plane perpendicular to the longitudinal direction and defining a space between the spines, the respective orientations of the polygons in the respective first and second parts being inverted along an inversion axis perpendicular to the longitudinal direction and parallel to the direction in which the tooth cleaning elements project, the head, handle and spines being made integrally with each other of a plastic material, and the space between the spines containing an elastomer material which links the spines.