Zobnin Yurij Pavlovich (RU),Зобнин Юрий Павлович (RU),Kuznetsov Aleksandr Ivanovich (RU),Кузнецов Александр Иванович (RU),Savitskij Aleksandr Nikolaevich (RU),Савицкий Александр Николаевич (RU),Parfen
申请号：
RU2019123899
公开号：
RU0002731414C1
申请日:
2019.07.29
申请国别(地区):
RU
年份:
2020
代理人:
摘要：
FIELD: medicine.SUBSTANCE: invention refers to medicine, namely to a method for complex estimation of arterial bed state. Finger area is irradiated with a light signal of the red and infrared wavelength ranges. Ambient temperature and temperature of the finger area to be recorded are pre-stabilized and the clamp of the emitters and the photodetector to the finger is adjusted. Photoplethysmographic (PPG) signal is recorded for at least 5 minutes. PPG signal is contoured by signal filtration by Savitzky–Golay method with 64 ms window width and obtaining the fourth signal derivative. Direct and reflected wave of PPG signal is detected from the artery wall. Arterial stiffness is determined on the basis of time interval between direct and reflected waves and on the basis of their amplitudes. Complex continuous wavelet transformation of the PPG signal is carried out using a Morlet basis wavelet and generating a wavelet spectrum. Peak location of PPG signal power in the wavelet spectrum is determined. State of the microcirculatory bed is assessed by the arrangement of peaks in the frequency ranges corresponding to the microvascular tonus regulation mechanism.EFFECT: invention provides accuracy, simplicity, reliability and reduced time for examination with integrated assessment of vascular bed for early diagnosis of widespread diseases - arterial hypertension and diabetes, in pathogenesis of which damage of arterial bed is of primary importance.5 cl, 4 ex, 16 dwgИзобретение относится к медицине, а именно к способу комплексной оценки состояния артериального русла. При этом участок пальца руки облучают световым сигналом красного и инфракрасного диапазонов длин волн. Предварительно стабилизируют температуру окружающей среды и температуру участка пальца руки, на котором будет проводиться регистрация, и регулируют прижим излучателей и фотоприемника к пальцу. Регистрируют фотоплетизмографический (ФПГ) сигнал в течение не менее 5 минут. Проводят контурный анализ ФПГ сигнала путем
