A system for classifying the usage of a handheld consumer device having a sensor and an analyzer. The sensor determines usage data at successive time instants and provides a temporally successive sequence of usage data during a usage session. The analyzer classifies the usage of the device with respect to at least one set usage classes and assembles a temporally successive sequence of input tuples of usage data relating to a predetermined time period of the usage session, each of the input tuples having at least one element representing the usage data at the respective time instant and for inputting the sequence of input tuples into at least one artificial neural network arranged to output at least one output tuple comprising a number of elements in accordance with the number of usage classes, each element of the output tuple representing a prediction value that the usage of the consumer device at the given time instant relates to a respective usage class.

A personal care device, such as an electric toothbrush, has a handle having a longitudinal axis and a treatment head connected to a carrier. The carrier extends within the handle and is mounted at the handle for pivoting motion around a pivot axis against a restoring spring force. A drive unit, such as a linear actuator, is mounted on the carrier, and at least one electrical connector is arranged between the handle and the carrier to convey electrical energy from an energy source fixedly mounted with respect to the handle to the drive unit. The electrical connector can be realized as an elastic metal sheet element having a spring constant for providing at least a part of the restoring spring force.

An electric cylindrical-rotation and in-line sweeping toothbrush is disclosed. The electric cylindrical-rotation and in-line sweeping toothbrush having a rotating shaft, a handle and a motor comprising: a first portion having perpendicular bristles to the rotation axis of the rotating shaft that includes at least one rotating head with bristles thereon; wherein the perpendicular bristles located on the rotating shaft and the rotation axis in rotation of the rotating shaft sweeps the whole length of the bristles section against the section of teeth in the same manner, and the toothbrush provides consistent sweeping from the gum towards the tip of the teeth in every part of the whole set of teeth.

An electric cylindrical-rotation and in-line sweeping toothbrush is disclosed. The electric cylindrical-rotation and in-line sweeping toothbrush having a rotating shaft, a handle and a motor comprising: a first portion having perpendicular bristles to the rotation axis of the rotating shaft that includes at least one rotating head with bristles thereon; wherein the perpendicular bristles located on the rotating shaft and the rotation axis in rotation of the rotating shaft sweeps the whole length of the bristles section against the section of teeth in the same manner, and the toothbrush provides consistent sweeping from the gum towards the tip of the teeth in every part of the whole set of teeth.

Disclosed is a toothbrush for cleaning teeth of a pet animal. The toothbrush of the present invention is an appropriate device for cleaning a dog's teeth by providing adequate lighting via the same toothbrush during the cleaning process. The lighting provides a halo-illumination lighting effect such that a 360-degree light encircles the tooth during cleaning. The use of halo-illumination allows a user to see top, bottom, and both sides of the dog's mouth in a particular region, thus providing the user sufficient information as to whether they are effectively performing teeth cleaning of the dog.

The invention relates to a hand-held device for excitation and irradiation of pathogenic microorganisms in the mouth and throat, e.g. a toothbrush comprising at least one excitation light source in the short-wave visible spectral range for auto-fluorescence excitation of the pathogenic microorganisms, at least one primary irradiation light source in the red spectral range for primary irradiation of the pathogenic microorganisms and for transillumination, and optionally at least one secondary irradiation light source in the visible spectral range for secondary irradiation of the pathogenic microorganisms, wherein the irradiation light sources have spectral components that can be absorbed by endogenous porphyrins, which are produced by the pathogenic microorganisms, whereby a fluorescence excitation and an inactivation of the pathogenic microorganisms occurs on the basis of subsequent processes. In order to prevent the unintentional irradiation of the eyes, a pressure sensor is designed to release higher light intensities only once a contact pressure has been measured. In addition, the radiation must leave the hand-held device in a divergent manner. The spatially resolved detection of the fluorescence of the pathogenic microorganisms can optionally be used to induce the inactivation of the bacteria by targeted irradiation in the fluorescent range.

The invention relates to a hand-held device for excitation and irradiation of pathogenic microorganisms in the mouth and throat, e.g. a toothbrush comprising at least one excitation light source in the short-wave visible spectral range for auto-fluorescence excitation of the pathogenic microorganisms, at least one primary irradiation light source in the red spectral range for primary irradiation of the pathogenic microorganisms and for transillumination, and optionally at least one secondary irradiation light source in the visible spectral range for secondary irradiation of the pathogenic microorganisms, wherein the irradiation light sources have spectral components that can be absorbed by endogenous porphyrins, which are produced by the pathogenic microorganisms, whereby a fluorescence excitation and an inactivation of the pathogenic microorganisms occurs on the basis of subsequent processes. In order to prevent the unintentional irradiation of the eyes, a pressure sensor is designed to release higher light intensities only once a contact pressure has been measured. In addition, the radiation must leave the hand-held device in a divergent manner. The spatially resolved detection of the fluorescence of the pathogenic microorganisms can optionally be used to induce the inactivation of the bacteria by targeted irradiation in the fluorescent range.

A toothbrush (10) includes a brush assembly (16) with at least three bristle arrangements (12), each having opposing inwardly-directed bristles (122, 124, 126) for simultaneously contacting facial and lingual surfaces (52, 54), and preferably also occlusal surfaces (56) of the teeth (50). Flexible linkages (14), interconnecting the bristle arrangements (12), maintain a relative spacing between the bristle arrangements (12) while allowing variation of an effective curvature of the brush assembly (16) such that the bristle arrangements (12) can ride along, and conform to a non-uniform curvature of, the arch of teeth. The toothbrush (IO) preferably also includes an actuation mechanism (22) for generating to-and-fro motion of the brush assembly (16) along the arch of teeth, most preferably combined with a more rapid small-amplitude oscillatory motion.

An intelligent tooth health-care system and an intelligent tooth cleaning device thereof. The intelligent tooth cleaning device includes a plurality of sensors capable of detecting conditions of mouth and teeth of a user. The user may obtain data relating to his/her health when he/she cleans the teeth. The sensors also detect the movement of the intelligent tooth cleaning device. The data of movement are transmitted to a mobile device and input to a computer tooth-cleaning game executed in the mobile device, whereby the user is guided by the computer tooth-cleaning game to clean his/her teeth. The data obtained by the sensors can also be transmitted to a server in the cloud for health analysis.

An intelligent tooth health-care system and an intelligent tooth cleaning device thereof. The intelligent tooth cleaning device includes a plurality of sensors capable of detecting conditions of mouth and teeth of a user. The user may obtain data relating to his/her health when he/she cleans the teeth. The sensors also detect the movement of the intelligent tooth cleaning device. The data of movement are transmitted to a mobile device and input to a computer tooth-cleaning game executed in the mobile device, whereby the user is guided by the computer tooth-cleaning game to clean his/her teeth. The data obtained by the sensors can also be transmitted to a server in the cloud for health analysis.