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    • 2. 发明公开
    • VORRICHTUNG UND VERFAHREN ZUR KONTINUIERLICHEN UND NICHT INVASIVEN BESTIMMUNG VON PHYSIOLOGISCHEN PARAMETERN EINES PROBANDEN
    • EP3399914A2
    • 2018-11-14
    • EP17700502.2
    • 2017-01-06
    • Oxy4 GmbH
    • KULCKE, AxelHOLMER, Amadeus
    • A61B5/1455
    • H04N5/35554A61B5/0205A61B5/02416A61B5/02433A61B5/02438A61B5/0816A61B5/14552A61B5/4519A61B5/4872A61B5/4875A61B5/4884A61B5/7257A61B2503/10A61B2562/0238H04N5/332H04N5/3452
    • The present invention relates to a device for the non-invasive determination of physiological parameters of a test subject, said device comprising an illumination unit (32) having a plurality of LED types, the emission maxima of which at different wavelengths range from the visible to in the NIR wavelength range and have an emission maximum of less than 590 nm, a photosensor that is to be placed on the skin, a data processing unit (11) for reading out the photosensor and for controlling the illumination unit (32) in such a manner that the different LED types are individually activated in a predetermined activation sequence at successive activation start times t k (k=1, 2... M) for a respectively predefined activation period and that the activation sequence is repeated with a clock frequency as a sequence n = 1, 2... N, wherein the clock frequency is sufficiently high in relation to the resolution of the pulse. The invention is characterized in that the photosensor is a CCD-based or CMOS-based camera sensor (34) which is arranged relative to the illumination unit (32) such that it can detect light passing through the body by means of transflexion, that the data processing unit (11) reads out the camera sensor in each activation sequence at the activation start times t k (k=1, 2... M) and over the respective activation period, and that the detected intensities, which are combined as sub-regions of sensor elements and associated with the respective activation sequence and the respective activation start time t k (k=1, 2... M), are recorded as a chronological series, wherein sub-regions of the camera sensor are combined by reading out lines of the camera sensor, which are parallel to the connecting axis between illumination unit and camera sensor and along which the distance from the illumination unit increases, and parallel lines are combined to form a single averaged line. The data processing unit is configured to evaluate the averaged line as a function of the distance of the illumination unit for carrying out an oxymetry of the muscles.