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利用研制的心肌桥模拟装置,对冠状动脉受压迫状态建立了圆形收缩的实验模型,进行了冠状动脉受心肌桥压迫持续到舒张期情况下的血压和流量模拟实验.实验研究表明,冠状动脉面积收缩接近到原来的20%时,远段收缩压迅速与近段收缩压分离;当冠状动脉面积收缩到小于原来的20%时,近段收缩压迅速上升,远段压力从不稳定状态迅速过渡到收缩压呈反向分布状态.心率和近段血压范围不变时,流量随着收缩程度的增加而增加.
A myocardial contractile experimental model was established by using the developed myocardial bridge simulator to simulate the blood pressure and flow rate in the coronary artery under myocardial pressure from myocardial bridge to diastole.Experimental studies have shown that coronary artery When the area contracted to 20% of the original, the distal systolic pressure rapidly separated from the proximal systolic pressure; when the coronary artery area contracted to less than 20%, the proximal systolic pressure increased rapidly, the distal pressure rapidly from the unstable state The transition to the systolic blood pressure showed an inverse distribution of heart rate and proximal blood pressure range unchanged, the flow rate increases with the increase of the degree of contraction.