The present invention provides an electrically driven toothbrush, which comprises a hollow handle, an electrical assembly module in electrical connection with a pair of spring and a cap member. The hollow handle includes a first end provided with a tooth brushing portion and a second end provided with an opening. The electrical assembly module in electrical connection with the spring is inserted into the hollow handle through the opening. The cap member is removably attached to the hollow handle through and closes the opening. By bending the cap member, two spring coils of the pair of spring make contact with each other so as to conduct an electrical path to the electrical assembly module for turning on the electrically driven toothbrush structure. By designing the proposed structure of the present invention, it successfully achieves the purpose of improving and enhancing the conveniences of use for users.

An oral care implement handle or a refill head therefor. The refill head may include a sleeve portion extending from a proximal end to a distal end, the sleeve portion having an inner surface that defines an internal cavity. The internal cavity may extend along a sleeve axis from an open bottom end at the proximal end of the sleeve portion to a closed top end, the internal cavity being configured to receive an attachment portion of a stem of an oral care implement handle. The internal cavity may have a proximal section adjacent the open bottom end and a distal section adjacent the closed top end. The distal section of the internal cavity may include a central portion located on the sleeve axis and at least one slot portion radially extending from the central portion.

An electric toothbrush is disclosed herein. The electric toothbrush may include an elongated body portion with opposed first and second ends and a longitudinal axis extending therebetween; a brush head section arrangeable toward the first end and including: a first bristle support member rotatable in a first direction, and a second bristle support member coupled to the first bristle support member and rotatable in a second direction about a centrally defined axis, the second direction being opposite the first direction; and a drive rod coupled to at least the first bristle support member and having an axis oriented so as to extend coincident with, or substantially parallel to, the longitudinal axis of the electric toothbrush, the drive rod being arranged to linearly move along the axis so as to rotate the first bristle support member in the first direction and rotate the second bristle support member in the second direction.

An electric toothbrush includes a grip portion, a brush portion, and a joint arrangement for connecting the two portions. The joint arrangement has an upper cylinder portion and a lower cylinder portion, with an axis of the upper cylinder portion being inclined a predetermined angle with respect to an axis of the lower cylinder portion. The grip portion is connected to the lower cylinder portion and the brush portion is connected to the upper cylinder portion, so that the grip portion and the brush portion are inclined by the predetermined angle.

An oral cleaning device comprising a handle portion (12) with a plurality of indicia (15) and a plurality of illuminating elements (31); and a user interface assembly (24), the user interface assembly including an interface panel (26) and a baffle assembly (30), the baffle assembly including a plurality of baffle sections (49) each corresponding with a respective one of the plurality of illuminating elements and a respective one of the plurality of indicia, and further where each of the plurality of baffle sections including a cover portion (49a) covering the baffle section and positioned between the respective one of the plurality of illuminating elements and the respective one of the plurality of indicia. The user interface assembly is structured to be blank when the device is powered off, and to illuminate one of the indicia when the device is powered on.

An electric toothbrush includes a grip portion, a brush portion on which a replaceable toothbrush is mounted, and an illumination ring between the grip portion and the brush portion. The brush portion is inclined with respect to the grip portion. The illumination ring is provided around the toothbrush, so that a user can view the illumination ring no matter what angle he/she is holding the toothbrush.

An oral care appliance and a method of controlling pressure in the oral care appliance are disclosed. The pressure inside a mouthpiece of the oral care appliance is controlled by an actuator. The actuator is triggered when a targeted threshold value of an operational characteristic is reached. Automatic control of the pressure in the mouthpiece enhances both cleaning efficiency and user comfort.

A method for promoting compliance with an oral hygiene regimen includes displaying, on a display device, a representation of at least a portion of a set of teeth of a user. The method also includes overlaying an indicium on the representation such that the indicium is associated with a first section of the representation. Responsive to a determination, via at least one of one or more processors, that a head of an oral hygiene device is positioned directly adjacent to a first section of the set of teeth that corresponds to the first section of the representation for at least a predetermined amount of time, the indicium is removed from the display device.

An oral care implement handle or a refill head therefor. The refill head may include a sleeve portion extending from a proximal end to a distal end, the sleeve portion having an inner surface that defines an internal cavity. The internal cavity may extend along a sleeve axis from an open bottom end at the proximal end of the sleeve portion to a closed top end, the internal cavity being configured to receive an attachment portion of a stem of an oral care implement handle. The internal cavity may have a proximal section adjacent the open bottom end and a distal section adjacent the closed top end. The distal section of the internal cavity may include a central portion located on the sleeve axis and at least one slot portion radially extending from the central portion.

The present disclosure relates to an oral cleansing device with illumination features. In one example, a diffuser for diffusing light is disclosed. The diffuser includes a first membrane configured to be positioned over a first light source, a second membrane coupled to the first membrane and configured to be positioned over a second light source; and a bridge coupling the first membrane to the second membrane, where the bridge extends from an edge of the first membrane to an edge of the second membrane in an indirect manner.