WEAR-OUT DETECTION FOR AN ORAL CARE SYSTEM
    2.
    发明公开

    公开(公告)号:US20240293211A1

    公开(公告)日:2024-09-05

    申请号:US18037816

    申请日:2021-11-16

    IPC分类号: A61C17/22

    CPC分类号: A61C17/221

    摘要: A wear-out assessment for an oral care system (14) (e.g. an oral cleaning device) is disclosed. A sensor unit (16) of the oral care system is adapted to provide a sensor signal related to a cleaning efficacy of a cleaning function of the oral care system when generated when the oral care system is inside a user's mouth. The sensor unit (16) may be, or may be coupled to, a component which is used during execution of an oral care function of the device, for example a sensor for detecting cleaning progress in the mouth, or a component which drives a cleaning or treatment action in the mouth. In accordance with the invention, the sensor signal (20) generated when the oral care system is outside the mouth is used for performing a wear-out assessment. As relevant components used by the oral care system (14) for the oral care function wear, characteristics of the sensor signal (20) may change in a predictable way, which can be used to identify when a wear-out state has been reached.

    Electric toothbrush
    4.
    发明公开
    Electric toothbrush 审中-公开

    公开(公告)号:US20240225804A9

    公开(公告)日:2024-07-11

    申请号:US17595085

    申请日:2021-07-07

    发明人: Liwei Cai Qilin Chen

    IPC分类号: A61C17/26 A61C17/22

    CPC分类号: A61C17/26 A61C17/221

    摘要: The present disclosure relates to an electric toothbrush, including a shell, a toothbrush head, a first spiral bevel gear, a second spiral bevel gear, and a drive motor. The toothbrush head is connected with the second spiral bevel gear; the first spiral bevel gear and the second spiral bevel gear are in transmission connection; the first spiral bevel gear is arranged above the drive motor and is in transmission connection with the drive motor; a central axis of the first spiral bevel gear is perpendicular to a central axis of the second spiral bevel gear; and the drive motor has a stepped shaft connected to the first spiral bevel gear. The first spiral bevel gear and the second spiral bevel gear are used to drive the toothbrush head to rotate, so that the drive is steady and the transmission efficiency is high. A main shaft of the drive motor adopts the stepped shaft, which can improve the transmission efficiency, so that the transmission is steadier. Since the coupling in the existing art is simplified, noise generated in the transmission process can be reduced, disordered shake in the rotating process of the toothbrush head is reduced, the use experience of a user is enhanced, and the service life is prolonged.

    Brush head assembly and electric toothbrush

    公开(公告)号:US11998412B2

    公开(公告)日:2024-06-04

    申请号:US17432090

    申请日:2019-06-19

    申请人: Feifan Hu

    发明人: Feifan Hu Jiankun Hu

    摘要: Provided are a brush head assembly and an electric toothbrush. The brush head assembly comprises a brush head body, a linking component and a locking cylinder; wherein a component assembly cavity is arranged at the tail end of the brush head body, the linking component is installed in the component assembly cavity, and a deformable locking cylinder including a fulcrum force-receiving part and a force applying part with elastic forces at both ends is embedded; the locking cylinder makes most of the strokes of the drive shaft in the insertion process smooth and convenient, only until the two force applying parts are both in contact with the drive shaft, will force be generated to lock the drive shaft, and the locking effect achieved by this elastic force can be maintained for a long time. Thus ensuring the capabilities of torque transmission and axial retention.

    Oral Care System and Method for Promoting Oral Hygiene

    公开(公告)号:US20230354993A1

    公开(公告)日:2023-11-09

    申请号:US18354761

    申请日:2023-07-19

    摘要: In one embodiment, an oral care system is disclosed that includes an oral care device and at least one programmable processor. The oral care device includes a head having a reference face, a light source, at least one orientation sensor generating orientation data corresponding to orientation measurements of the reference face during a freeform oral care routine, and at least one optical sensor generating optical sensor data representing optical feedback resulting from the light from the light source being incident upon sections of the oral cavity. The processor, based on the orientation data, determines which optical sensor data corresponds with which of the sections of the oral cavity. For each section of the oral cavity, based on the corresponding optical sensor data, the processor determines an oral care characteristic.

    ORAL CARE DEVICE WITH SENSING FUNCTIONALITY
    10.
    发明公开

    公开(公告)号:US20230329849A1

    公开(公告)日:2023-10-19

    申请号:US18027414

    申请日:2021-09-09

    摘要: An oral care system for sensing blood in an oral cavity and in gum tissue. The sensing is performed magnetically using a magnetic field source (16) and magnetic sensing arrangement (18) incorporated into a cleaning or treatment portion of an oral care device (e.g. a brush head of a toothbrush or mouthpiece part of a brushing mouthpiece device). The field source generates (16) a reference field and the sensing arrangement (18) is arranged to sense the field strength of the reference field at one or more spatial points. Since blood is magnetic, when brought into the reference field, it magnetically interacts with the field, which may alter field strength, field shape, or flux distribution. This enables presence of blood to be detected. It also allows for detecting specific oral features or disease states associated with presence of blood or abnormal amounts or concentrations of blood. For example, this can be based on application of detection criteria which relate to one or more properties of the sensed field.