Interdental treatment device with vibrating head part

In an interdental treatment device, the improvement comprising:

• a handle that includes a cavity configured to accommodate an exchangeable battery power source, the cavity containing a sleeve made up of electrically conductive material and being open to the rear and can be closed from the rear by a cover;
• an interdental treatment head carrying an interdental treatment tool;
• a neck between the handle and the head;
• a mechanical motorized vibratory device, including a drive which causes the head to vibrate, located in at least one of the head and the neck;
• and
• electrical connections operably connected to the mechanical motorized vibratory device and operably connectable to the battery power source to power the mechanical motorized vibratory device via the electrical connections.

In an interdental treatment device comprising:

• a handle including a cavity configured to accommodate an electric power source;
• an interdental treatment head carrying an interdental treatment tool;
• a neck between the handle and the head;
• a mechanical motorized vibratory device, including a drive which causes the head to vibrate, located in at least one of the head and the neck;
• electrical connections operably connected to the mechanical motorized vibratory device and operably connectable to the electric power source to power the mechanical motorized vibratory device via the electrical connections;
• and
• a switch operably connected to at least one of the electrical connections to interrupt power from the power source to the mechanical vibratory device,
• wherein the cavity is open to the rear of the interdental treatment device handle and is closable from the rear by a cover, the cover including a contact surface engageable with the electric power source to provide a portion of the electrical connections.