Dental Treatment Apparatus
    101.
    发明申请

    公开(公告)号:US20220160487A1

    公开(公告)日:2022-05-26

    申请号:US17534715

    申请日:2021-11-24

    Abstract: A dental treatment apparatus includes a holder, a power supply, root canal length measurement circuitry, and control circuitry. The holder holds an electrode placed in a root canal. The power supply energizes file with a high-frequency current. The root canal length measurement circuitry electrically measures a position of a distal end of electrode in the root canal. The control circuitry causes, in accordance with information on the position of the distal end of the electrode measured by root canal length measurement circuitry, the power supply to control a current value of the high-frequency current which energizes the electrode.

    X-ray CT scanner, X-ray image processor, and X-ray image display

    公开(公告)号:US11160515B2

    公开(公告)日:2021-11-02

    申请号:US16573346

    申请日:2019-09-17

    Abstract: An X-ray CT scanner generates CT imaging information on an imaging region, and has a revolution arm positioning an X-ray generator and an X-ray detector to face one another with a subject therebetween, directing the revolution arm to move so X-ray beam radiation is offset from the center of the imaging region. An axial direction changing mechanism changes an imaging target from a first imaging region to a second imaging region in an axial direction of the imaging central axis, and a controller controls offset CT imaging, and an X-ray imaging information generator to generate first and second CT imaging information based on projection data of the first and second imaging region and to generate a stitch imaging information comprising the first and second CT imaging information.

    OBSERVATION DEVICE, OBSERVATION UNIT, AND OBSERVATION METHOD

    公开(公告)号:US20210169318A1

    公开(公告)日:2021-06-10

    申请号:US16762678

    申请日:2018-11-08

    Abstract: A magnifying glass captures an image of a tooth by a plurality of cameras for observation. The plurality of cameras includes a narrow range camera capturing an image of the tooth in a narrow image capturing range and a wide range camera capturing an image of the tooth in a wide image capturing range. The magnifying glass includes a three-dimensional position calculator detecting a three-dimensional position of at least the tooth based on the wide range image captured by the wide range camera; a blur correction processor correcting a blur of the narrow range image captured by the narrow range camera, based on a change in a three-dimensional positional relationship between the tooth, the three-dimensional position of which has been detected by the three-dimensional position detector, and the narrow range camera; and an image display portion displaying at least the narrow range image having the blur corrected.

    DENTAL INSTRUMENT, CONTROL METHOD THEREOF, AND THREE-DIMENSIONAL MEASURING

    公开(公告)号:US20200297201A1

    公开(公告)日:2020-09-24

    申请号:US16822947

    申请日:2020-03-18

    Abstract: A handheld dental instrument includes a casing provided with a holding portion to be held by a user, a reception unit provided on the casing to receive an operation from the user, and a control unit that controls a control target to perform a predetermined action in response to the operation received by the reception unit. The control unit performs a first control when the operation received by the reception unit from the user is a first operation, and performs a second control different from the first control when the operation received by the reception unit from the user is a second operation different from the first operation.

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