A lice brush includes a body that supports a plurality of bristles. The body also includes a handle. One or more of the plurality of bristles is configured for use in brushing a user's hair for lice. In particular, one or more of the bristles includes recesses, grooves, indentations, notches, pits or similar inwardly-extending spaces configured to facilitate removal of lice as the bristles pass through the hair. Multiple bristles can be provided in a bristle unit and multiple bristle units can be employed in a bristle assembly of the brush.

An interdental cleaner having a rod-shaped support made of a first plastic, which has a handle part at its rear end region and has a cover made of a soft flexible second plastic at its opposite front end region. Several radially-protruding fingers are situated on the outer side of the cover and are integrally joined to the cover in their base region. At least some of the fingers and preferably almost all the fingers have a slenderness of at least 3.0, wherein the slenderness results from the quotients of the axial length l of the finger and the maximum diameter d thereof in the base region (S=l/d). The slenderness (front slenderness) of at least some fingers is lower in a front region VB than the slenderness (rear slenderness) of at least some fingers in a rear region HB of the cover.

An example device includes a brush head configuration and a brush handle, and the brush head surface area includes exterior bristle arrays disposed on an exterior portion of the brush head surface area, and interior bristle arrays disposed on an interior portion of the brush head surface area, and each bristle of the interior bristle arrays has a different diameter size than each bristle of the exterior bristle arrays.

A phototherapy care toothbrush is provided. The phototherapy LEDs are arranged in the toothbrush head body. The phototherapy LEDs are used to emit phototherapy ray with a specific wavelength to assist in oral cleaning and oral care, so that a deep cleaning and care effect can be achieved. Furthermore, redundant chemical medicines can be effectively prevented from entering an internal system of a person from the mouth to harm the health. In addition, in conjunction with various optimization solutions, such as using the bristle base made of a light-transmittance material to refract and guide light to adjust an illumination region, using bristles made of light guide fibers to perform low-loss and high-efficiency light guidance, and covering a light reflection layer at an inner surface of the toothbrush head accommodating chamber to enhance the illumination intensity, the oral phototherapy effect is greatly enhanced.

The invention pertains to a novel scraper assembly having a plurality of interchangeable scraper heads and handles and corresponding method for use. The scraper assembly further comprises a plurality of abrasive mechanisms, namely spring bristles, coiled springs, chainmail abraders and wire cloth abraders capable of effectively cleaning a surface without scoring or otherwise damaging the surface. The invention may be particularly useful for cleaning grills and ovens. Additionally, the invention may also be useful for shaping, adding texture to, stripping materials from or otherwise preparing a surface, including wood, metal or ceramic surfaces.

A head for an oral care implement comprises a mounting surface and at least one tuft extending from the mounting surface. The tuft comprises a first group of filaments and at least a second group of filaments. The first group of filaments is surrounded by the second group of filaments. The filaments of the first group have a first length and the filaments of the second group have a second length, the first length being different from the second length. The difference in length between the first length and the second length is about 1.1 mm to about 1.9 mm.

Configurations are provided for hairbrush applicators and personal care devices, including dispensing and application of material to a user, such as powders and dry shampoo. According to embodiments, a hairbrush applicator includes a bristle assembly having bristles and a base tray, the base tray including at least one channel opening. The hairbrush applicator includes an applicator base configured to receive the bristle assembly and at least one flow hole to provide material to the bristles. The applicator base includes a rim with a guide channel, a collar is configured to engage with the rim and the guide channel. The collar can rotate relative to the applicator base to provide at least one position to dispense material to the bristle assembly. The applicator base may be configured to engage with a storage container configured to store material dispensed by the applicator which may include a disposable cartridge.

Proposed are schemes, solutions, concepts, designs, methods and systems pertaining to aiding and/or improving a vibratory personal care device having cleaning elements that are adapted, in use, to vibrate. Embodiments proposed that, based on a loading force applied to the cleaning elements during use, the vibration of the cleaning elements may be controlled. That is, the vibration of the personal care device may be adapted based on a pressure applied to cleaning elements (by engagement with a tissue surface of the user).

A head for an oral care implement, the head comprises a number of colored filaments of different types, the filaments extending from a mounting surface of the head and being grouped together to define a color pattern. The number of colored filaments of different types comprises at least a first type of filament having time-controlled color changing properties and a second type of filament having time-controlled color changing properties, so that each of the first and second type of filament changes its color from an initial color to a second color within a pre-defined time period. The initial color of the first and second type of filament defining an initial color pattern

[00001]$\stackrel{\_}{C_{\mathrm{ab}\mathrm{new}}^{*}},$

while the second color of the first and second type of filament defining a second color pattern

[00002]$\stackrel{\_}{C_{\mathrm{ab}\mathrm{used}}^{*}}.$

The change from the initial color pattern to the second color pattern is defined by a difference in value of colorfulness

[00003]$\stackrel{\_}{C_{ab}^{*}}=\stackrel{\_}{C_{\mathrm{ab}\mathrm{new}}^{*}}-\stackrel{\_}{C_{\mathrm{ab}\mathrm{used}}^{*}}.$

The change in value of colorfulness

[00004]$\stackrel{\_}{C_{ab}^{*}}$

is at least 5 in response to use and wear.

A head for an oral care implement comprises a number of colored filaments of different types. The filaments extend from a mounting surface of the head and are grouped together to define an initial color pattern. The number of colored filaments comprise at least a first type of filament having time-controlled color changing properties and a second type of filament having time-controlled color changing properties, so that each of the first and second type of filament changes its color from an initial color to a second color within a pre-defined time period. The initial color of the first type of filament is different from the initial color of the second type of filament. The second color of the first type of filament and the second color of the second type of filament are substantially the same, preferably substantially white, grey and/or translucent. The second color of the first and second type of filament define a second color pattern. The initial color pattern changes to the second color pattern after the head is used over about 240 minutes to about 360 minutes, by applying a brushing force from about 0.5 N to about 2.5 N.