Complex motion toothbrush

Abstract

An electrically driven toothbrush may comprise a shaft comprising a cam. The cam may contact and move a first bristle holder. The shaft may drivingly engage the first bristle the holder. A second bristle holder may be driven by the first bristle holder. The second bristle holder may be driven by an engagement with an element extending from the first bristle holder.

1 . An electric toothbrush, comprising: 
 a handle at a first end of the toothbrush having a motor disposed therein;    a head at a second end of the toothbrush, the head having a longitudinal axis and the head comprising a first bristle holder, the first bristle holder comprising a housing and a plurality of bristle tufts, the head also comprising a second bristle holder, the second bristle holder comprising a housing and a second plurality of bristle tufts;    wherein the first bristle holder oscillates about a first pivot, wherein a molded protrusion of the first bristle holder extends substantially along the longitudinal axis of the head;    wherein the second bristle holder is driven by the protrusion of the first bristle holder which extends along the longitudinal axis of the head.