Grigioni M, Daniele C, Gensabella R, D'Avenio G, Barbaro V
Laboratory of Biomedical Engineering, Istituto Superiore di Sanità, Roma, Italy.
Int J Artif Organs. 1999 Dec;22(12):837-42.
In this study we investigated the dependence of the mechanical properties and in particular of the radial compliance of a vascular prosthesis as a function of its usable length. Radial compliance was measured at 60 bpm and in the pressure range 80-120 mmHg. Starting from compliance measurements a simple model was used to calculate the pulse wave velocity and the reflection coefficients between 6 mm and 8 mm grafts (knitted and woven) with iliac and subclavean artery of similar diameter. The results provide an indication of the influence of usable length on the compliance and diameter mismatch at the anasthomosis between graft and host artery.
在本研究中，我们调查了血管假体的机械性能，尤其是其径向顺应性，作为其可用长度的函数。在60次/分钟的心率和80 - 120 mmHg的压力范围内测量径向顺应性。从顺应性测量开始，使用一个简单的模型来计算直径相似的髂动脉和锁骨下动脉的6毫米至8毫米移植物（针织和编织）之间的脉搏波速度和反射系数。结果表明了可用长度对移植物与宿主动脉吻合处顺应性和直径不匹配的影响。
