具有柔韧性衬底的视网膜微电极阵列的设计

Design and Fabrication of Flexible Epi-retinal Microelectrode

目的:针对视觉假体关键部件视网膜微电极阵列的结构特点和植入要求,设计并制作表层视网膜微电极阵列,并对微电极阵列特性进行测试。方法:以parylene作为柔性衬底材料,Pt为电极阵列材料,设计并制作单层电极及引线分布的视网膜植入微电极阵列,并用三电极测试系统对制作完成的微电极阵列进行电特性测试。结果:对微电极阵列的形态和电化学特性测试结果表明,制作的微电极阵列在外观形态和电学特性上符合设计和视网膜植入的要求。结论:该微电极阵列可以为进一步的动物体电生理实验提供性能可靠的视网膜微电极阵列。

Objectives To design and fabricate implantable epi-retinal microelectrode array for the purpose of retinal repair, and perform test on the features of the array, biethotls With parylene as flexible substrate material and Pt as electrode material, monolayer microelectrode array was designed and fabricated, and electric characteristics of the array were measured with the three-electrode test system. Results Test results showed that morphological and electrochemical properties of the array met the design requirements. Conclusion The microelectrode array can be put in the in vivo electrophysiological experiments on anima.