An electric toothbrush device having bristle movement in three dimensions includes an elongate body comprising a neck extending between a handle and a head. A drive shaft engaged to a motor in the handle extends into the head. A plate is engaged to a transfer shaft, which extends perpendicularly from the drive shaft through a planar face of the head and which is operationally engaged to the drive shaft. The plate is external to the head and parallel to the planar face. Bristles are engaged to a second face of the plate. First and second protuberances are engaged to the planar face and the plate, respectively. Movement of the plate parallel to the planar face induced by the transfer shaft brings the second protuberance into contact with the first protuberance to induce repetitive movement of the plate and the bristles in a direction perpendicular to the planar face.

A visual tooth cleaning, grinding and polishing instrument includes a host, an oral observation instrument and a cleaning and polishing tool. The host can drive the cleaning and polishing tool and supply a power source and a control system for an illuminating system, an observation system and the oral observation instrument. A picture shot by a camera of the observation system can be transmitted to a display of the observation system in time, so as to achieve the purposes of cleaning the teeth while observing a process of cleaning the dental calculus, dental plaque and pigmentation on the surface of the teeth with the cleaning and polishing tool and the cleaning effect instantly on a mobile phone, thereby effectively cleaning, grinding and polishing the teeth. A flusher or an electric toothbrush head or other interdental cleaning tools may also be mounted on the host or the oral observation instrument.

The present disclosure relates to an electric toothbrush, and more particularly, to an electric toothbrush including: a main body which includes an outer case; a cleaning body which is coupled to the main body and has a cleaning head formed at one end thereof; a vibration transmission unit which couples the main body and the cleaning body, has a vibration generator mounted thereon to generate vibration, and transmits the vibration to the cleaning body; and a vibration damping unit which is provided between the outer case and the vibration transmission unit, thereby maintaining cleaning performance of the electric toothbrush, reducing magnitude of vibration to be transmitted to a user, and improving convenience for the user.

An electrically operated assembly includes a handle housing and a connector for repeatably attaching and detaching a head to and from the assembly. The connector is in direct proximity to a motor having an eccentric weight. The connector is made from a material having an e-modulus that is higher than an e-modulus of the material from which the handle housing is made. A ratio of an overall length extension of the handle housing extending along a longitudinal housing axis to an overall length extension of the connector extending along a longitudinal connector axis is from about 2.5 to about 4.5, and preferably from about 3.0 to about 3.5.

A connector-housing assembly for an electrically operated personal-care implement comprises a housing defining an inner cavity and a connector for repeatably attaching and detaching a head to and from the assembly. The connector has an overall length extension (Lc) extending along a longitudinal connector axis (Xc), the overall length extension (Lc) being composed of a sub-length (Li) extending within the inner cavity of the housing, and a sub-length (Lo) extending outside of the housing, wherein a ratio (Rc) of the length (Li) extending within the inner cavity of the housing to the length (Lo) extending outside of the housing is from about 1.0 to 1.7, preferably from about 1.0 to about 1.5.

A massage accessory for use with an electric toothbrush has a body and a coupling mechanism. The electric toothbrush has a body, and a shaft configured to generate an oscillating movement. The coupling mechanism is configured to couple the massage accessory to the shaft of the electric toothbrush. The body of the accessory has a base at a proximal end of the body, a head at or near a distal end of the body, and a flexible region between the base and the head. The base, the head, and the flexible region are arranged such that the head is configured to move in response to the oscillating movement of the shaft and the base remains relatively stationary compared to the body of the electric toothbrush. A massage accessory for use with an electric toothbrush has a transfer shaft with a driving feature, and a coupling mechanism configured to couple the massage accessory to the shaft of the electric toothbrush. The accessory has a head having a driving feature that is complementary to the driving feature of the transfer shaft. A space is provided between the driving feature of the transfer shaft and the driving feature of the head when the transfer shaft and head are engaged such that oscillating movement of the transfer shaft causes a corresponding oscillating movement of the head and additionally causes vibration of the head.

A self-adaptive electric toothbrush includes a handle and a brush head. A vibrating motor is arranged in the handle. Bristles are arranged on the brush head. An output shaft of the vibrating motor extends out of the handle and is connected to the brush head through a delay structure. By the delay structure, the brush head remains stationary or the amplitude of the oscillation of the brush head is less than the amplitude of the oscillation of the output shaft after the vibrating motor is activated and before pressure is applied to the bristles. After pressure is applied to the bristles, the amplitude of the oscillation of the brush head is greater than the amplitude of the oscillation before pressure is applied. In the self-adaptive electric toothbrush, before the pressure is applied, the brush head is stationary or the amplitude of oscillation is small.

A handle for an electrically operated personal-care implement includes a housing having a proximal end and a distal end opposite the proximal end, and an inner cavity. A connector for repeatably attaching and detaching a head to and from the handle is partially accommodated within the inner cavity at the proximal end thereof. A motor, located in the housing's inner cavity, has an eccentric weight. The connector includes a recess accommodating the motor with the eccentric weight.

An electrically operated assembly comprises a handle housing defining an inner cavity, a connector for repeatably attaching and detaching a head to and from the assembly, and a motor for operating the assembly, wherein the connector comprises a recess in which the motor is accommodated, and the connector is at least partially made from a material having an e-modulus being higher than the e-modulus of the material from which the handle housing is made.

A teeth cleaning system, which provides improved coverage or brushing area. The system includes an actuated tray comprises brushing elements. The brushing elements may be positioned to engage the front, rear, and top surfaces of the upper and lower jaw teeth. The actuation may be configured to oscillate the tray in a lateral direction which may brush all the surfaces of teeth simultaneously. Some embodiments include a higher density of bristles which increases the effectiveness of brushing. In addition, aspects of the system reduce the time spent brushing teeth.