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    Detecting erythema caused by wearable devices
    12.
    发明授权
    Detecting erythema caused by wearable devices 有权

    公开(公告)号：US11185279B2

    公开(公告)日：2021-11-30

    申请号：US16478682

    申请日：2018-01-18

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： Elise Claude Valentine Talgorn ,  Willem Verkruijsse ,  Lieven Adriaenssen

    IPC: A61B5/00 ,  A61B5/0205 ,  A61M35/00 ,  A61B5/024

    Abstract: Techniques are described for detecting erythema caused by wearable devices. In various embodiments, a wearable device may include light source(s) to emit light at multiple wavelengths; light sensor(s) to receive light reflected from tissue of an individual that wears the wearable device; and logic configured to: operate the light source(s) to emit light at multiple wavelengths; receive a signal generated by the light sensor(s), wherein the signal is generated by the light sensor(s) in response to detection of light reflected from the tissue; analyze the signal to determine a first metric from a first wavelength of the light reflected from a first depth of the tissue and a second metric from a second wavelength of the light reflected from a second depth of the tissue; identify a correlation between the first and second metrics; and provide output indicative of tissue erythema based on the correlation.

    Device and method for determining vital signs of a subject
    14.
    发明授权
    Device and method for determining vital signs of a subject 有权
    用于确定受试者的生命体征的装置和方法

    公开(公告)号：US09265456B2

    公开(公告)日：2016-02-23

    申请号：US14207785

    申请日：2014-03-13

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： Ihor Olehovych Kirenko ,  Willem Verkruijsse

    IPC: A61B5/024 ,  A61B5/1455 ,  A61B5/01 ,  A61B5/0295 ,  A61B5/08 ,  A61B5/00

    CPC classification number: A61B5/14551 ,  A61B5/0077 ,  A61B5/01 ,  A61B5/02416 ,  A61B5/0295 ,  A61B5/0816 ,  A61B5/7278 ,  G06F19/00

    Abstract: A device for determining a vital sign of a subject comprises an interface for receiving a data stream derived from detected electromagnetic radiation reflected from a region of interest including a skin area of the subject, said data stream comprising a data signal per skin pixel area of one or more skin pixels for a plurality of skin pixel areas of said region of interest, a data signal representing the detected electromagnetic radiation reflected from the respective skin pixel area over time. An analyzer is provided for analyzing spatial and/or optical properties of one or more data signals in one or more wavelength ranges. A processor is provided for determining a vital sign information signal of the subject based on the data signals of skin pixel areas within the skin area, and a post-processor is provided for determining the desired vital sign from said vital sign information signal. The determined spatial and/or optical properties are used by the processor for determining the vital sign information signal and/or by the post-processor for determining the desired vital sign.

    Abstract translation: 用于确定对象的生命体征的装置包括用于接收从检测到的电磁辐射导出的数据流的接口，该检测电磁辐射从包括对象的皮肤区域的感兴趣区域反射的所述电磁辐射，所述数据流包括每个皮肤像素区域的数据信号 或多个皮肤像素，用于所述感兴趣区域的多个皮肤像素区域，数据信号表示随时间从各个皮肤像素区域反射的检测到的电磁辐射。 提供一种用于分析一个或多个波长范围内的一个或多个数据信号的空间和/或光学特性的分析器。 提供处理器，用于基于皮肤区域内的皮肤像素区域的数据信号来确定对象的生命体征信息信号，并且提供后处理器，用于根据所述生命体征信息信号确定期望的生命体征。 确定的空间和/或光学特性由处理器用于确定生命体征信息信号和/或由后处理器确定所需的生命体征。

    EVALUATION OF PATENCY USING PHOTO-PLETHYSMOGRAPHY ON ENDOSCOPE IMAGES
    15.
    发明申请
    EVALUATION OF PATENCY USING PHOTO-PLETHYSMOGRAPHY ON ENDOSCOPE IMAGES 有权
    使用光子图像对内窥镜图像的评估

    公开(公告)号：US20150164592A1

    公开(公告)日：2015-06-18

    申请号：US14407972

    申请日：2013-06-20

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： Haytham Elhawary ,  Aleksandra Popovic ,  Willem Verkruijsse

    IPC: A61B19/00 ,  A61B5/00

    CPC classification number: A61B34/30 ,  A61B1/0005 ,  A61B5/0084 ,  A61B5/0261 ,  A61B5/0295 ,  A61B5/061 ,  A61B5/1459 ,  A61B5/4851 ,  A61B5/7285 ,  A61B2034/301

    Abstract: A system for evaluating patency includes a light sensor (128) positionable relative to a blood vessel to receive light from the blood vessel and convert the light into an image signal. Aphoto-plethysmography (PPG) interpretation module (115) is configured to receive the image signal and output pixel values in an image representing PPG information. An image generation module(148) is coupled to the PPG interpretation module to receive the pixel values and generate a PPG map to be output to a display for analysis.

    Abstract translation: 用于评估通畅的系统包括可相对于血管定位的光传感器（128），用于接收来自血管的光并将光转换成图像信号。 照相体积描记术（PPG）解释模块（115）被配置为接收图像信号并在表示PPG信息的图像中输出像素值。 图像生成模块（148）耦合到PPG解释模块以接收像素值并生成要输出到显示器进行分析的PPG图。

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