Oral care agent dispensing system

A modular oral care system for dispensing an oral care agent, the system comprising:

• a replaceable cartridge comprising:
• a reservoir containing an oral care fluid;
• and
• at least one first electrode electrically coupled to the oral care fluid;
• a base unit configured for detachable coupling to the replaceable cartridge, the base unit comprising:
• an electrical circuit comprising a power source;
• and
• a dispensing mechanism configured to dispense the oral care fluid;
• wherein the first electrode is operably coupled to the electrical circuit when the cartridge is coupled to the base unit;
• and
• wherein the dispensing mechanism includes an axially movable piston arranged in a proximal end of the reservoir, the piston having a piston head which forms a movable rear wall of the reservoir in the cartridge when the cartridge is coupled to the base unit.

A modular dispenser for dispensing an oral care agent, the system comprising:

• a cartridge comprising:
• a reservoir containing an oral care fluid;
• a dispensing conduit fluidly coupled to the reservoir for delivering the oral care fluid;
• and
• a first electrode electrically coupled to the oral care fluid;
• a base unit detachably coupled to the cartridge, the base unit comprising:
• an electrical circuit including a power source and a second electrode;
• a dispensing mechanism comprising a movable piston, the second electrode mounted to the movable piston;
• an actuator operably coupled to the dispensing mechanism that, when actuated, advances the movable piston into the reservoir so that the second electrode comes into electrical coupling with the oral care fluid and dispenses the oral care fluid.

A replaceable cartridge comprising:

• a reservoir containing an oral care fluid;
• a first electrode arranged to apply an electrical charge to the oral care fluid;
• and
• an electrical contact electrically connected to the electrode, the contact configured for engaging an electrical contact on an external device;
• and
• a dispensing conduit fluidly coupled to the reservoir for delivering the oral care fluid;
• wherein the first electrode adjoins the dispensing conduit for applying the electrical charge to the oral care fluid being dispensed from the reservoir.