Patent ID: 8398325
Filing Date: 2013-03-19
Classification: A46B,A61K,A61Q

Abstract:
1. An oral care implement comprising; a head extending along a longitudinal axis and having tooth cleaning elements, a reservoir for storing a liquid, the reservoir being connected to an end of a channel, an outlet disposed in the head, a piezoelectric pump disposed in the head beneath the tooth cleaning elements to deliver the liquid from the reservoir via the outlet, the piezoelectric pump having an input port connected to another end of the channel and an output port joined to the outlet, a transverse plane substantially perpendicular to the longitudinal axis, the transverse plane intersecting the piezoelectric pump and at least one of the tooth cleaning elements, a valve that allows the liquid to flow only toward the outlet, and wherein the reservoir is a collapsible bag or container that ensures that negative pressure does not build up in the reservoir.