Non-invasive test system for peripheral vascular regulation function, and implementation method of non-invasive test system

Abstract

The invention discloses a non-invasive test system for a peripheral vascular regulation function, and an implementation method of the non-invasive test system. The system comprises a temperature control module, a skin blood flow collection module, a blood flow signal analysis module and a vascular regulation function evaluation module; the temperature control module is used for inducing the skin of a to-be-tested object to generate a hyperemia reaction through temperature control; the skin blood flow collection module is used for collecting blood flow signals of the to-be-tested object before and after the hyperemia reaction; the blood flow signal analysis module is used for performing signal analysis on the blood flow signals acquired by the skin blood flow collection module and determining a time domain characteristic value and a frequency domain characteristic value of the blood flow; and the vascular regulation function evaluation module is used for determining a vascular overall regulation function evaluation index, a vascular endothelial regulation function index, a nerve regulation function evaluation index and a myogenic regulation function evaluation index according to the time domain characteristic value and the frequency domain characteristic value of the blood flow. The test process in the invention is free of trauma risk; the accuracy of a test result is improved; and the system can be widely applied to the technical field of medical instruments.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a non-invasive testing system for the regulation function of peripheral blood vessels and a realization method thereof. Background technique [0002] Human peripheral arterioles and arterioles have the function of actively adjusting the size of the lumen, thereby regulating blood flow, wall shear force, blood pressure and other hemodynamic characteristics. Studies have shown that in the development of cardiovascular diseases such as atherosclerosis, vascular regulatory dysfunction occurs earlier than vascular structural lesions and plaque formation, and is the earliest stage of cardiovascular diseases that can be detected. Among them, endothelial function is one of the hotspots in the study of vascular regulation function. Endothelial function can not only reflect the patient's vascular health status, but also has been confirmed by many studies as an independent risk fac...

AI Technical Summary

Problems solved by technology

[0007] (1) From the perspective of induced reactive hyperemia, the existing vascular function testing equipment at home and abroad are all based on the brachial artery bundle-brachial ischemia-induced reactive hyperemia scheme. The armband will cause discomfort to the tester, such as swelling, numbness, and pain, and there may be potential health risks for certain groups of people, such as patients with high blood pressure or unstable plaques in blood vessels

[0008] (2) The brachial artery bundle arm ischemia-induced reactive hyperemia plan will cause the downstream large vessels and peripheral microvessels to participate in blood flow regulation at the same time, and it is difficult to separately evaluate the regulation function of the peripheral microvessels

[0009] (3) The relationship between physiological signal changes obtained by existing testing techniques and vascular regulatory function is conceptually unclear

This is an inaccurate assessment of endothelial regulation and a partial picture of overall vascular function

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