Plaque Detecting Device and Toothbrush Incorporating Same

    公开(公告)号:US20220183457A1

    公开(公告)日:2022-06-16

    申请号:US17577112

    申请日:2022-01-17

    Abstract: The plaque detecting device of the present invention comprises a light emitting unit (450) which irradiates ultraviolet or blue excitation light (L) toward the tooth surface (99a), and a first and second light receiving units (402) which receive radiated light (L′) from the tooth surface (99a). The first light receiving unit extracts the spectral component of a first wavelength region including the wavelength range of fluorescent light specific to plaque from the radiated light (L′), and obtains a first output value corresponding to the intensity of that spectral component. The second light receiving unit extracts, from the radiated light (L′), the spectral component of a second wavelength region containing the wavelength range of the fluorescent light specific to enamel and having a predetermined lower limit wavelength below the lower limit wavelength of the first wavelength region, and obtains a second output value corresponding to the intensity of this spectral component. Determination of the relative magnitude of the ratio between the first output value and the second output value as compared to a first threshold value is performed. Determination of the relative magnitude of the difference between the first output value and the second output value as compared to a second threshold value is performed.

    BIOMETRIC DATA MEASUREMENT SYSTEM AND BIOMETRIC DATA MEASUREMENT METHOD

    公开(公告)号:US20210127994A1

    公开(公告)日:2021-05-06

    申请号:US17146966

    申请日:2021-01-12

    Abstract: A biometric data measurement system and method, including a transmitting device including a measurement unit configured to measure a first biometric data, a setting unit configured to set a first reference time corresponding to an occurrence time of a first feature value of the first biometric data, and a transmission unit configured to transmit a signal at a time when a predetermined first time period has elapsed since the first reference time, and a receiving device including a measurement unit configured to measure a second biometric data, a setting unit configured to set a second reference time corresponding to an occurrence time of a second feature value of the second biometric data, and a reception unit configured to maintain an awaiting state for the signal during a third time period from a time when a second time period has elapsed since the second reference time.

    BLOOD PRESSURE ESTIMATION APPARATUS
    14.
    发明申请

    公开(公告)号:US20200297224A1

    公开(公告)日:2020-09-24

    申请号:US16899179

    申请日:2020-06-11

    Abstract: A first fluid bag and a second fluid bag are located side by side along an inner circumference of a belt, expand and contract upon entry and exit of a fluid, and are provided to press a measurement site from therearound while surrounding the measurement site. The fluid supply unit supplies the fluid to the first fluid bag and the second fluid bag. The pulse wave detection unit is disposed on an external surface portion of the first fluid bag and is provided to press the measurement site upon expansion of the first fluid bag. A position of the pulse wave detection unit relative to the artery passing through the measurement site is adjusted through adjustment of a ratio between a volume of the fluid in the first fluid bag and a volume of the fluid in the second fluid bag by the fluid supply unit.

    DISPLAY CONTROL DEVICE AND RECORDING MEDIUM OF PROGRAM

    公开(公告)号:US20200221961A1

    公开(公告)日:2020-07-16

    申请号:US16812464

    申请日:2020-03-09

    Abstract: A display control device of the present disclosure is configured to present information for positioning a pulse wave sensor relative to a measurement site. A measurement device includes a belt wrapped around and attached to a measurement site for measuring a pulse transit time, a sensor unit provided on an inner peripheral surface of the belt that i toward the measurement site when the belt is attached, and a display provided on an outer peripheral surface of the belt opposite to the inner peripheral surface. The display is provided on the outer peripheral surface in a site configured to face a site where the sensor unit is positioned when the belt is attached, and the sensor unit includes a first pulse wave sensor and a second pulse wave sensor disposed spaced apart from each other in a width direction of the belt. First indicator information indicating a magnitude of a first pulse wave amplitude indicated by an output of the first pulse wave sensor, and second indicator information indicating a magnitude of a second pulse wave amplitude indicated by an output of the second pulse wave sensor are displayed on the display in positions respectively corresponding to the first pulse wave sensor and the second pulse wave sensor.

    Plaque Detecting Device and Toothbrush
    16.
    发明申请

    公开(公告)号:US20190335890A1

    公开(公告)日:2019-11-07

    申请号:US16087938

    申请日:2017-03-15

    Abstract: The plaque detecting device of the present invention comprises a light emitting unit (450) which irradiates ultraviolet or blue excitation light (L) toward the tooth surface (99a), and a first and second light receiving units (402) which receive radiated light (L′) from the tooth surface (99a). The first light receiving unit extracts the spectral component of a first wavelength region including the wavelength range of fluorescent light specific to plaque from the radiated light (L′), and obtains a first output value corresponding to the intensity of that spectral component. The second light receiving unit extracts, from the radiated light (L′), the spectral component of a second wavelength region containing the wavelength range of the fluorescent light specific to enamel and having a predetermined lower limit wavelength below the lower limit wavelength of the first wavelength region, and obtains a second output value corresponding to the intensity of this spectral component. Determination of the relative magnitude of the ratio between the first output value and the second output value as compared to a first threshold value is performed. Determination of the relative magnitude of the difference between the first output value and the second output value as compared to a second threshold value is performed.

    BLOOD PRESSURE MEASUREMENT DEVICE
    18.
    发明公开

    公开(公告)号:US20240180435A1

    公开(公告)日:2024-06-06

    申请号:US18442585

    申请日:2024-02-15

    Abstract: A blood pressure measurement device includes: a pulse wave acquisition unit configured to acquire a pulse wave of a human body; a blood pressure value measurement unit configured to calculate a blood pressure value based on the pulse wave; a pulse wave reproduction information generation unit configured to generate pulse wave reproduction information, the pulse wave reproduction information being dynamic information reproducing pulsation of the pulse wave at a time of calculation of the blood pressure value; a storage unit configured to store the pulse wave reproduction information; a display unit configured to be capable of displaying the blood pressure value calculated; and an output unit configured to be capable of outputting the pulse wave reproduction information. The output unit can output the pulse wave reproduction information related to the pulse wave at the time of calculation of the blood pressure value when the blood pressure value is displayed.

    PULSE TRANSIT TIME MEASUREMENT DEVICE AND BLOOD PRESSURE MEASUREMENT DEVICE

    公开(公告)号:US20210169347A1

    公开(公告)日:2021-06-10

    申请号:US17178850

    申请日:2021-02-18

    Abstract: A pulse transit time measurement device according to an aspect includes: a belt unit; a plurality of first electrodes and second electrodes provided on the belt unit; a third electrode provided on the belt unit; a first electrocardiographic signal acquisition unit that acquires a first electrocardiographic signal of a user using the plurality of first electrodes; a second electrocardiographic signal acquisition unit that acquires a second electrocardiographic signal of the user with the second electrode and the third electrode; a feature amount parameter calculation unit that calculates a feature amount parameter related to a waveform feature point of the first electrocardiographic signal on the basis of a waveform feature point of the second electrocardiographic signal; a pulse wave signal acquisition unit that acquires a pulse wave signal representing a pulse wave of the user; and a pulse transit time calculation unit that detects a waveform feature point.

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