A cosmetic device with an exchangeable application head and a device body is disclosed, wherein the device body contains a motor and drive mechanism, an actuating switch, a power supply, a head recognition element and a control element adapted to control the motor and drive mechanism based on an actuation of the actuation switch and the application head recognized by the head recognition element. It is provided that the head recognition element comprises at least one mechanical switch disposed on a carrier fixed at the device body. Further, a flexible actuation area is disposed in front of the at least one mechanical switch. The exchangeable application head has at least one recognition generating protrusion actuating through the flexible actuation area on one of the at least one mechanical switches when the exchangeable application head is mounted at the device body.

Tooth brushing monitoring system is disclosed that includes an oral hygiene device with a separate an optical sensor to track positional changes of the oral hygiene device. The optical sensor may alone or in combination with motion sensor data determine position and orientation of an oral hygiene device with respect to a user's mouth. The system may then determine the quality, quantity and location of brushing and provide feedback on the quality of brushing. This feedback provides motivation for users to increase their brushing habits, leading to a decrease in plaque, tooth decay and gingivitis.

A method (300) for determining a brushing angle of an oral care device (10) is provided. The method includes the steps of: generating (310), by a controller (30) of the oral care device, a drive signal to move a drive train (24) and produce a motion of a bristle field (18) of the oral care device; measuring (320), via a sensor (28), force applied by a user to the bristle field of the oral care device; and determining (330), by the controller of the oral care device, a brushing angle of the bristle field relative to a surface of the user's oral cavity based at least in part on the generated drive signal and the measured force to the bristle field.

Disclosed herein is a comb sensor for measuring combing resistance, wherein the comb sensor comprises: a comb or brush comprising a handle, a head connected to the handle, and teeth connected to the head; and a bend sensor located on at least one of the teeth, to measure the bending of the one of the teeth. The present invention provides improved sensitivity and/or detailed measurement result.

A facial treatment apparatus includes a housing, a facial treatment member mounted to the housing, and dimensioned for application to facial skin of a subject and being actuable to treat the facial skin, a visual display including a facial icon having a plurality of regions corresponding to different areas of the facial skin to be treated by the facial treatment member, an electronic timer adapted to count time associated with a treatment protocol and responsive to actuation of the facial treatment member and a controller associated with the timer and the facial icon and cooperating to visually identify a different region of the facial icon at successive predetermined time intervals of the treatment protocol.

An oral care implement including a handle and an oral care refill head. The handle has a gripping portion, an engagement component coupled to a distal end of the gripping portion, and a stem. The engagement component includes a plate portion and a first engagement feature. The stem extends through an opening in the engagement component and protrudes from the plate portion. The oral care refill head includes an oral care treatment portion and a sleeve portion. The sleeve portion has an inner surface that defines a sleeve cavity having a cavity axis and a second engagement feature. When the oral care refill head is detachably coupled to the handle, the first and second engagement features mate with one another to at least one of: (1) position the oral care refill head and the handle in an operational alignment; and (2) lock the oral care refill head to the handle.

Provided are a toothbrush module, a toothbrush attachment, a brushing assistance system, a brushing evaluation system, a brushing assistance device, and a brushing assistance program that ease obtainment of a brushing action of a user even during brushing.

A toothbrush attachment (2) includes: a sensor unit (21) that detects a predetermined physical quantity; a wireless transmission unit (22) that transmits a radio signal indicating the physical quantity detected by the sensor unit (21); a housing unit (201) that houses the sensor unit (21) and the wireless transmission unit (22); and a coupling mechanism (202) that removably attaches the housing unit (201) to a toothbrush (4). A wireless terminal device (3) includes a wireless receiver (31) that receives a radio signal and obtains the physical quantity, a music output unit (354) that outputs an image or sound so as to support brushing by a user with the toothbrush (4) based on the physical quantity, a figure display control unit (363), and a notification unit (373).

A toothbrush apparatus and system and associated method. The apparatus includes a sensing module that performs at least one of the following: detect at least one time period associated with use of the toothbrush apparatus, detect one or more movements of the toothbrush apparatus, and any combination thereof. The apparatus's one or more processors communicatively coupled to the sensing module determine one or more measurements based on at least one of: the detected time periods, the detected movements, and any combination thereof, and store the determined measurements in one or more memory locations communicatively coupled to the processors. The apparatus also includes one or more feedback modules that receive the stored measurements and encode the measurements into corresponding feedback signals. One or more data transfer modules transmit the feedback signals.

A system and method of use to train a user the correct use of a toothbrush are provided. A typical user may be a child, and correct use may include not biting the toothbrush. Accordingly the system includes a toothbrush capable of detecting when it is bitten. This may be achieved by including a sensor capable of detecting pressure applied to a head and/or a brush assembly of the toothbrush from two opposing directions at the same time. The user may initially be provided with training material that encourages the user to associate correct use of the toothbrush with a (pleasurable) sound. When the user brushes his or her teeth without biting the toothbrush, the sound associated with correct use is provided by an audio device. If the user bites the toothbrush, the sound is switched off until the bite is released and normal brushing recommences.

A system for providing a connected dental device is disclosed. In particular, the system may include integrating a network chip or transceiver into a dental device, such as a toothbrush, so as to enable the dental device to communicate with a user device and one or more accessory devices. Once the user device and one or more accessory devices are paired with the user device, the system may track information associated with the dental device and the user using the dental device. Based on the tracked information, the system may determine an action to be performed by the user using the dental device. Using the dental device, the system may transmit a notification to the user device to alert the user of the action that needs to be performed. The system may also transmit notifications providing status information for the dental device and the one or more accessory devices.