The present invention relates to an electric toothbrush that includes a head part and a handle part having a shape connectable to the head part and supplying a driving voltage to the head part according to a user's control. The head part may include a toothbrush head formed with a plurality of bristle holes where toothbrush bristles are disposed and a first through hole and a second through hole spaced apart from each other, a head body extending from the toothbrush head and having an inner passage connected to the first through hole and the second through hole, a head cover which closes the inner passage of the head body, and a first electrode rod and a second electrode rod inserted through the inner passage of the head body, whose one ends being positioned in the first through hole and the second through hole, respectively, and the other ends being exposed to the outside through the head cover, respectively.

Described herein is an oral care implement comprising: a handle; and a head coupled to the handle, the head comprising a main body and a release component coupled to the main body, the release component comprising: a water-dissolvable matrix comprising a first polymer having a processing temperature greater than or equal to 130° C.; and a release agent comprising at least one of zinc oxide, potassium nitrate, and tetrapotassium pyrophosphate; wherein the release agent is dispersed throughout the water-dissolvable matrix.

The purpose of this invention is to improve the health of users while effectively utilizing data obtained from information about tooth brushing. One embodiment of the present invention is a server connected via a network to a user terminal communicating with an instrument equipped with a sensor that detects predetermined measurement information on tooth brushing, and to an evaluator terminal that inputs predetermined evaluations, which receives measurement information on tooth brushing detected by the sensor, receives the measurement information on tooth brushing, receives the receiving habit information of a user who performs tooth brushing, and transmits the evaluation information based on the measurement information and the habit information to the user terminal.

A multi-component housing having a length and comprising at least a first component comprising a first plastic material, a second component comprising a second plastic material, and a third component comprising a third plastic material. The housing includes at least one tolerance-elimination element made of the second plastic material and longitudinally attached to the first component along the housing's longitudinal axis. The tolerance-elimination element has an average length extending parallel to the housing's longitudinal axis, which average length is at least ten times less than the length of the housing. The third component at least partially forms an outer surface of the housing, so that the tolerance-elimination element is at least partially overmolded by the third plastic material.

The present invention relates to an electric toothbrush base protector. The protector is in the form of a cover or liner that can be placed on a sink on top of a toothbrush charging unit. The cover eliminates contact of a base of the electric toothbrush with the sink surface and with the top of the charging unit. The material of the cover can be a plastic, a cotton or other material. The cover features a continuous opening that enables the electric toothbrush to be placed on the top surface of the charging base. The cover prevents contamination and enables users to quickly secure and store the toothbrush immediately after use.

A control device for a noncontact power supply device includes a power transmission coil for outputting an alternating magnetic flux upon receiving alternating electric power, and a power transmission control unit for controlling alternating electric power to be supplied to the power transmission coil. The power transmission control unit includes a first mode and a second mode. The first mode controls the alternating electric power to be supplied to the power transmission coil in order to transmit electric power, to be supplied to a load of a power reception device, to a power reception coil, and the second mode controls the alternating electric power for supplying electric power less than the electric power transmitted by the first mode to the power transmission coil. After being activated, the power transmission control unit selects initially the first mode.

A control device for a noncontact power supply device includes a power transmission coil for outputting an alternating magnetic flux upon receiving alternating electric power, and a power transmission control unit for controlling alternating electric power to be supplied to the power transmission coil. The power transmission control unit includes a first mode and a second mode. The first mode controls the alternating electric power to be supplied to the power transmission coil in order to transmit electric power, to be supplied to a load of a power reception device, to a power reception coil, and the second mode controls the alternating electric power for supplying electric power less than the electric power transmitted by the first mode to the power transmission coil. After being activated, the power transmission control unit selects initially the first mode.

A teeth cleaning apparatus includes a mouthpiece, a transducer, a cleaning liquid supply unit and a power control unit. The mouthpiece includes a containment wall, a hollow ingress tube connector and a vibrator holder. The vibrator holder has a vibrator holder hole and a vibrator holder body, and the transducer has a stationary part and a vibrator part, wherein an end of the stationary part of the transducer is kept in the vibrator holder, and a vibrator part of the transducer is disposed near the containment wall. The cleaning liquid supply unit includes a cleaning liquid container, at least one connecting tube, and a cleaning liquid delivery unit that delivers a cleaning liquid from the cleaning liquid container through the hole of the hollow ingress tube connector of the mouthpiece piece. The power control unit is used for supplying electricity to operate the transducer to generate cavitation bubbles at a vibration frequency to dean teeth.

The general field of the disclosure herein relates to the design of one or more health related monitoring or maintenance devices. These devices may include but are not limited to devices that monitor and/or maintain the health of users or devices that monitor and/or maintain the health of assets. The devices include oral cleaning devices for maintaining and monitoring the oral health of users, clothing for monitoring the health and fitness of users and charging pads which may monitor the health or assets being charged. Sensors may be integrated in these devices including but not limited to IMUs, thermocouples or oral cleaning devices, IMUs in clothing like shoes or wrist bands, or timers or charging sensors in magnetic surfaces which may cause one or more objects and/or other magnetic surfaces to float when a desired function is achieved.

An oral care system that includes an oral care implement and a tracking attachment. The oral care implement may include a handle and a head. The tracking attachment is detachably coupled to the oral care implement. The tracking attachment may include a housing including a first housing portion having an inner surface that defines a first cavity and a second housing portion having an inner surface that defines a second cavity. The tracking attachment may also include a tracking unit configured to facilitate tracking at least one of a position, orientation, or movement of the oral care implement to which it is attached. A first portion of the handle may be positioned within the first cavity and a second portion of the handle may be positioned within the second cavity.