Non-invasive detection system with peripheral vascular blood flow adjusting function

Abstract

A non-invasive detection system with a peripheral vascular blood flow adjusting function comprises a data collecting module, a filtering module, a feature point / section identification module, a data analysis module and a blood flow adjusting function evaluation module. Cuff downstream front arm or hand skin blood flow volume signals are continuously measured before and after blood flow of the brachial artery is blocked by means of the method that the unilateral upper arm is pressurized through a cuff, after the blood flow volume signals are subjected to filtering treatment, a stable blood flow section before compression of the cuff and a congestion section after relieving of cuff compression are identified, and the specific value of average blood flow volumes of the congestion section and the stable blood flow section is calculated to obtain the index of quantitative evaluation for the peripheral vascular blood flow adjusting function. The non-invasive effect is achieved in the whole operating process, the measuring time is short, through feature analysis for a time registration curve of the blood flow, a blood flow changing section dominated by peripheral vascular ischemic reaction is identified, the influence of the upstream artery endothelial function on peripheral blood flow signals can be effectively excluded to achieve targeted evaluation on the human body peripheral vascular blood flow adjusting function, and the pretty good application prospects are achieved.

Description

technical field [0001] The invention relates to the fields of biomedical engineering technology and information processing technology, in particular to a detection system for evaluating the blood flow regulation function of peripheral blood vessels by analyzing the dynamic changes of skin blood flow before and after arm tissue ischemia by artificial ischemic physiological tests. Background technique [0002] Peripheral blood vessels are the most distal blood vessels in the human body and are the main mechanism for regulating blood perfusion in tissues / organs. Their blood flow regulation function under variable physiological conditions is one of the main indicators reflecting the health of the blood circulation system. Studies have shown that the degradation of peripheral vascular blood flow regulation function is an important indicator for predicting the risk of cardiovascular diseases such as coronary heart disease and stroke, as well as the risk of diabetes complications. D...

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Problems solved by technology

On the other hand, although peripheral pulse wave amplitude, skin surface temperature, blood oxygen, etc. are related to the perfusion state of blood, they are not direct measurement parameters of blood flow, and are susceptible to external environmental factors and physiological factors such as autonomic nerve activity, respiration, and metabolism. Factors that cause potential measurement errors

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