两种人造心血管生物力学性能的比较

Study on biomechanical characteristics of artificial heart prostheses

目的对法国产InterGard针织人造心血管和苏州产机织人造心血管这两种人造心血管试样的力学性能进行测试,为人造血管的研制及临床应用提供参考。方法对两种人造心血管试样分别进行拉伸强度、应力应变、应力松弛以及蠕变的力学性能测试,并对结果进行统计分析处理。结果法国产InterGard针织人造心血管的力学性能优于苏州产机织人造心血管的力学性能结论人造心血管的力学性能主要取决于它所用的材料、结构等因素。

Objective To determine the biomechanical properties of two kinds of artificial heart prostheses (made in France (InterGard) and made in Suzhou, respectively) and provide theoretic reference for its manufacture and clinical use. Method Tensile strength, stress-strain relationship, stress relaxation and creep of these specimens were tested by using a material testing machine and analyzed the results.R esult The specimens made in France are superior in its properties compared with that of the specimens made in...