Method and system for automatic brightness/gain control while measuring localized oral inflammation

    公开(公告)号:US11497404B2

    公开(公告)日:2022-11-15

    申请号:US16770705

    申请日:2018-11-22

    IPC分类号: A61B5/00 G05B11/01 A46B15/00

    摘要: A method (500) for localizing gingival inflammation using an oral care device (10), the method comprising: (i) emitting (520) light at a first intensity by a light emitter (42); (ii) obtaining (530) first reflectance measurements reflectance data; (iii) determining (540), by a controller (30) from the first reflectance data, whether the location comprises gingiva; (iv) automatically adjusting (550), based at least in part on the first reflectance data, the intensity of a light emitter to a second intensity different from the first intensity, and/or automatically adjusting (550) a gain of a light detector; (v) obtaining (560) a second plurality of reflectance measurements by the light detector of the oral care device for at least some of the locations; and (vi) determining (570), using the second plurality of reflectance measurements, whether gingiva at the location is inflamed.

    Attachment structure for a personal care appliance, a personal care appliance and a method

    公开(公告)号:US10398537B2

    公开(公告)日:2019-09-03

    申请号:US15572657

    申请日:2016-05-11

    IPC分类号: A61C17/22 A61C17/34

    摘要: There is provided an attachment structure for a personal care appliance, the attachment structure comprising a body having a proximal end and a distal end, wherein the proximal end has a coupling receptacle that is for coupling to a drive shaft of a handle of the personal care appliance; and wherein the coupling receptacle has one or more portions of shear-thickening material on an interior surface thereof. A corresponding personal care appliance and method of securing an attachment structure to a handle of a personal care device are also provided.

    Determining a position of an oral care device

    公开(公告)号:US11771213B2

    公开(公告)日:2023-10-03

    申请号:US16959854

    申请日:2019-01-03

    IPC分类号: A46B15/00 A61C17/22

    摘要: The invention discloses an oral care device (100) comprising a head portion (102) having a protuberance (104) for engaging an interproximal region within an oral cavity. The oral care device (100) also comprises at least one sensor (108) for acquiring motion data for the oral care device, and a processor (110). The processor is configured to determine when the protuberance of the head portion engages an interproximal region in the oral cavity; and determine, based on motion data acquired by the at least one sensor as the protuberance moves between interproximal regions, a position of the head portion of the oral care device in the oral cavity. An oral care system and a method of determining a position of an oral care device in an oral cavity are also disclosed.

    Method and system for improved measurement of localized oral inflammation using centroid sampling

    公开(公告)号:US11638524B2

    公开(公告)日:2023-05-02

    申请号:US16770890

    申请日:2018-12-06

    IPC分类号: A61B5/00 A61B5/1455

    摘要: For localizing gingival inflammation within a user's mouth the following steps are carried out using an oral care device (10): (i) sequentially emitting (520) light by a plurality of light sources (48) in a first sequential pattern, wherein at least some of the plurality of light sources are configured to emit light of different wavelengths; (ii) sequentially emitting (530) light in a second sequential pattern which is the reverse of the first sequential pattern; (iii) obtaining (540), by a light detector (40), reflectance measurements to generate first reflectance data from light emitted in the first sequential pattern, and to generate second reflectance data from light emitted in the second sequential pattern; (iv) averaging (550), by a controller (30), first reflectance data and second reflectance data for each wavelength to generate averaged reflectance data; and (v) determining (570), using the averaged reflectance data, whether gingiva at the location is inflamed.

    Measuring health parameter using tissue recovery time

    公开(公告)号:US11140973B2

    公开(公告)日:2021-10-12

    申请号:US16318011

    申请日:2018-03-13

    IPC分类号: A46B15/00 A61B5/00

    摘要: An oral care device (10) assesses a health parameter of gingival tissue of a user by means of a force-generating module (52) to apply a momentary force to the gingival tissue by applying a burst of compressed air or a burst of liquid to the gingival tissue, a sensor (28) to obtain a plurality of optical signals from the gingival tissue over time after the momentary force has been applied, a controller (30) to quantify, based at least in part on an analysis of the plurality of optical signals, the health parameter (e.g. inflammation of the gingival tissue), wherein the health parameter is based at least in part on an amount of time the gingival tissue takes to recover to the application of force; and a feedback module (46) to provide information to the user regarding the quantified health parameter.