Personal hygiene implement

Abstract

A replacement toothbrush head includes a movable functional element comprising either a piston or a piston chamber; and a fixation element comprising either a piston when the movable functional element comprises a piston chamber; or a piston chamber when the movable functional element comprises a piston. The piston chamber engages the piston to form a pump; and the movable functional element is structured and configured to oscillate relative to the fixation element.

1 . A replacement toothbrush head comprising:
 a movable functional element comprising a piston disposed in the replacement toothbrush head; and   a fixation element comprising a piston chamber disposed in the replacement toothbrush head;   wherein the piston chamber engages with the piston to form a pump; and   wherein the movable functional element is structured and configured to oscillate relative to the fixation element.   
     
     
         2 . A replacement toothbrush head comprising:
 a movable functional element comprising a piston chamber disposed in the replacement toothbrush head; and   a fixation element comprising a piston and disposed in the replacement toothbrush head;   wherein the piston chamber engages with the piston to form a pump; and   wherein the movable functional element is structured and configured to oscillate relative to the fixation element.   
     
     
         3 . A personal hygiene device comprising the replacement toothbrush head of  claim 1 , wherein the handle comprises a drive unit arranged to drive the movable functional element of the replacement toothbrush head to rotatably oscillate during operation. 
     
     
         4 . A personal hygiene device comprising the replacement toothbrush head of  claim 2 , wherein the handle comprises a drive unit arranged to drive the movable functional element of the replacement toothbrush head to rotatably oscillate during operation.