影响体外反搏效果的因素

INFLUENCE OF SOME FACTORS ON EXTERNAL COUNTERPULSATION EFFICIENCY

对体外反搏过程采用线性单弹性腔模型及其等效回路进行了讨论。利用连续方程解出了独立的人体总外周阻力R、顺应性C和不受气囊控制的部分外周阻力Ru。利用上述模型评估不同的气囊压力、充气开始时刻和充气维持时间对体外反搏的效果。

<ABSTRACT> A Linear single elastic chamber model and its equivalent circuit are discussed for the external counterpulsation process. The total peripheral resistance R, compliance C and partial peripheral resistance Ru not refer- red to cuffs are separately resolved by using continuum equations. The model is used to asses influence of different cuff pressure, trigger time and inflation period of cuf on external counterpulsation efficiency.