An oral care device comprises a head portion and a handle portion. The head portion comprises at least one supporting arm and a base. The supporting arm extends from the base. A sensor is exposed from the supporting arm. The handle portion is configured to move relative to the head portion. The handle portion comprises a processor, wherein the processor is configured to receive signals from the sensor and analyze the signals received from the sensor.

This disclosure provides an oral irrigator including a base, a reservoir, a handle and a starter. The base has a pumping assembly, a controller and a starting part. The reservoir has a storage cavity and is removably connected to the base and communicates the storage cavity with the pumping assembly. The handle is configured to guide fluid from the pumping assembly. The starter is provided on the handle or removably connected to the handle. One of the handle and the starter has a signal processor, and when the starting part is operated, the signal processor may receive a first starting signal and send it to the controller. The pumping assembly, the controller and the starting part are electrically connected, and when the starting part is operated, the controller receives a second starting signal. The controller controls the pumping assembly to work after receiving the first and second starting signals.

An oral care implement including a handle and a replacement head that is detachably coupled to the handle. The oral care implement may include a handle having a longitudinal axis that includes a gripping portion and a stem extending from the gripping portion. The gripping portion may have a shoulder that circumferentially surrounds the stem and an annular rib protruding from the shoulder. The replacement head may have a sleeve portion terminating in a proximal edge that is formed from a resilient material. The replacement head may be detachably coupled to the handle so that the annular rib of the shoulder and the proximal edge of the sleeve portion that is formed of elastomeric material are in contact with one another.

A method and apparatus permitting arbitrary, relative motions of a distal end of a toothbrush or flosser with respect to a handle with real-time selectable motions. The toothbrush has a handle and a post, with a mechanism mechanically coupling the handle to the post permitting relative translational movement of the post with respect to the handle.

A brush head (112, 212, 312, 412) for attachment to a shaft (118, 218, 318, 418) of an oral care device (400), the brush head (112, 212, 312, 412) comprising: a neck (114, 214, 314) having a working head (116, 216, 316, 416), the neck being configured to transmit oscillations from the shaft to the working head; and a spring (102, 202, 302) captive within the neck, wherein upon insertion of the shaft into the assembled brush head, the spring provides a retention force for retaining the brush head on the shaft, characterised in that the spring is in direct mechanical contact with the neck and the shaft.

The present invention relates to an electric or motorized toothbrush. The toothbrush contains a brush head having bristles that rotate in either a clockwise or counterclockwise direction in a non-oscillating manner. An elongated handle contains a motor, rechargeable batteries and a rotatable shaft to rotate the bristles in a desired direction. The bristles are rotated using manual control buttons disposed on the handle. Typically, a clockwise rotation is performed for cleaning top teeth and a counterclockwise rotation is performed for cleaning bottom teeth. The toothbrush enables users to change the brush direction for top and bottom teeth without having to switch hands.

A personal care cleaning device (10) including a housing (12), a resonant drive actuator (20), which includes a rotor (24) having a first moment of inertia (J.sub.r) and a stator (22) having a second moment of inertia (J.sub.s); a first plurality of leaf spring elements (60) having a first spring constant (k.sub.rh), each leaf spring element of the first plurality of leaf spring elements (60) being connected the housing (12) and to the rotor (24) such that each leaf spring element of the first plurality of leaf springs elements (60) extends radially from the rotor (24) to the housing (12), each leaf spring element of the second plurality of leaf spring elements (62) being connected to the housing (12) and engaging with the stator (22), wherein the ratio of the first (k.sub.rh) and second (k.sub.sh) spring constants is sufficiently similar to the ratio of the first (J.sub.r) and second moments (J.sub.s) of inertia such that there is substantially no resulting torque transmitted to the housing (12) during operation.

A personal care cleaning device (10) including a housing (12), a resonant drive actuator (20), which includes a rotor (24) having a first moment of inertia (J.sub.r) and a stator (22) having a second moment of inertia (J.sub.s); a first plurality of leaf spring elements (60) having a first spring constant (k.sub.rh), each leaf spring element of the first plurality of leaf spring elements (60) being connected the housing (12) and to the rotor (24) such that each leaf spring element of the first plurality of leaf springs elements (60) extends radially from the rotor (24) to the housing (12), each leaf spring element of the second plurality of leaf spring elements (62) being connected to the housing (12) and engaging with the stator (22), wherein the ratio of the first (k.sub.rh) and second (k.sub.sh) spring constants is sufficiently similar to the ratio of the first (J.sub.r) and second moments (J.sub.s) of inertia such that there is substantially no resulting torque transmitted to the housing (12) during operation.

A storage case for storing a power-driven personal care implement includes a primary cavity and a primary cover, preferably movably connected to the primary cavity. The primary cavity and the primary cover define a primary compartment configured to store the power-driven personal care implement therein. The primary cover is configured to set the primary compartment in an open position or a closed position. The storage case includes a secondary cavity and a secondary cover, preferably movably connected to the secondary cavity. The secondary cavity and the secondary cover define a secondary compartment separate from the primary compartment. The secondary cover is configured to set the secondary compartment in an open position or a closed position. The secondary compartment is configured to store a power source electrically unconnected to any electrical conductors.

A storage case for storing a power-driven personal care implement includes a primary cavity and a primary cover, preferably movably connected to the primary cavity. The primary cavity and the primary cover define a primary compartment configured to store the power-driven personal care implement therein. The primary cover is configured to set the primary compartment in an open position or a closed position. The storage case includes a secondary cavity and a secondary cover, preferably movably connected to the secondary cavity. The secondary cavity and the secondary cover define a secondary compartment separate from the primary compartment. The secondary cover is configured to set the secondary compartment in an open position or a closed position. The secondary compartment is configured to store a power source electrically unconnected to any electrical conductors.