MECHANICAL AND ELECTRICAL PROPERTIES OF A NANO-STRUCTURED FLEXIBLEPARYLENE-METALLIC CABLE FOR RETINAL STIMULATION

研制了一种多功能、高精度的新型拉伸测试系统，用于同时研究纳米结构超柔性聚对二甲苯铂微缆的力学变形行为和电阻率，该微缆具有多通道传输模拟电信号刺激视网膜神经，以恢复视力疾病患者的部分视力。本文利用自行研制的拉伸测试系统，研究了聚对二甲苯薄膜的尺寸效应以及退火温度对聚对二甲苯铂微缆力学和电学性能的影响。从尺寸效应、退火影响以及机械和电气可靠性等方面对聚对二甲苯铂微缆的优化和小型化进行了分析。

A novel tensile testing system with multifunction and high precision was developedto investigate simultaneously both the mechanical deformation behavior and the electricalresistance rate of a nanostructured super-flexible parylene platinum microcable that hasmultichannel to transport mimicked electric signals to stimulate retina nerves so as torecover partially visibility for patients who is suffering visual diseases. In the presentstudy, the size effect of parylene thin film and the influence of annealing temperatureon the mechanical and electrical properties of the parylene platinum microcable wereexamined by using the developed tensile testing system. Analysis was made for theoptimization and the miniaturization of the parylene platinum microcable by taking intoaccount the size effect and annealing influence as well as its mechanical and electricreliability.