METHOD, DEVICE, SYSTEM AND WEARABLE DEVICE FOR NON-INVASIVE DETECTION FOR TISSUE ELEMENT Russian patent published in 2024 - IPC A61B5/1455 

FIELD: medicine.

SUBSTANCE: group of inventions relates to a method and a device for non-invasive detection of a tissue element and a wearable device for non-invasive detection of a tissue element. When executing the method, a second measured value of light intensity is obtained for the detected location of the detected object for each predetermined wavelength of the predetermined wavelengths at the measurement distance. A second reference light intensity value is obtained for each predetermined wavelength from the predetermined wavelengths at the reference distance. Here, the measurement distance is the distance from the source to the detector corresponding to the first measured light intensity value. The reference distance is the distance from the source to the detector corresponding to the first light intensity reference value. The concentration of the tissue element to be detected is determined according to the second measured light intensity value and the second reference light intensity value for each predetermined wavelength. When a second measured light intensity value and a second reference light intensity value for each predetermined wavelength at the measurement distance and at the reference distance are obtained for the detectable location of the detected object, a measurement ring beam and a reference ring beam are respectively formed for the detectable location of the detected object. The beams correspond to each predetermined wavelength on the surface of the detected location. Wherein, the inner radius of each measurement ring beam is a corresponding measurement distance, the inner radius of each reference ring beam is a corresponding reference distance, or the outer radius of each measurement ring beam is a corresponding measurement distance, the outer radius of each reference ring beam is a corresponding reference distance. Each measurement ring beam and each reference ring beam have the same geometric centre. Based on the photosensitive surface corresponding to the geometric centre, a second measured value of the intensity of light emitted from the surface of the detection location after each measurement annular beam passes through the detection location, and a second reference value of the intensity of light emitted from the surface of the detection location after each reference annular beam passes through detected location. The device contains a light intensity sensor and a processor. The light intensity sensor contains a ring beam generator and a light intensity signal generator. The wearable device includes a main part and a non-invasive detection device for a fabric element provided on the main part. The wearable device is designed to be worn at the detected location.

EFFECT: improved detection accuracy and the ability to use various detection methods due to the adjustable distance from the source to the detector, the reception of light at a fixed centre and the passage of incident rays at various distances around this centre.

25 cl, 37 dwg