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该文根据血液流动连续性方程、运动方程及血管壁弹性力学方程,通过边界条件的耦合,在给定了血压波形函数的基础上,假设堵塞斑块与血管壁弹性性质相同时,求解了狭窄血管管壁的径向位移及环向应力;分析了不同狭窄程度对血管壁变形及应力的影响;给出了不同狭窄状态下,血管植入支架所需的支撑力,从而计算出植入支架后血管壁的径向位移及应力状态。该文的研究结果可为临床上对狭窄血管植入支架的变形与受力分析提供参考。
Based on the blood flow continuity equation, the equation of motion, and the elasticity equation of blood vessel wall, this paper, based on the coupling of boundary conditions, given the blood pressure waveform function, The radial displacement and circumferential stress of the vascular wall were analyzed. The effect of different degrees of stenosis on the deformation and stress of the vascular wall was analyzed. The supportive force required for the implantation of the vascular stent under different stenosis conditions was given, Posterior vascular wall radial displacement and stress status. The results of this study may provide a reference for the analysis of the deformation and force analysis of stented vascular stents in clinic.