新型MEMS微针设计及其力学性能

Design and Mechanical Characteristics of Novel MEMS Microneedles

描述了三种新型MEMS微针的结构设计及制备方法.针对微针的实际使用要求,对微针的固体力学性质及微通道内液体的流动情况进行了理论分析和数值模拟.结果表明,所设计的三种微针的强度可以保证安全地进行皮肤注射,且适于进行药剂的微量传输.

Three novel MEMS microneedles are designed and fabricated. Aiming at practical applications, the mechanical characteristics of the microneedles and process of fluid flowing through the microchannels are studied through both theoretical analysis and numerical simulation with the finite element method. The results show that the microneedles designed here are strong enough to guarantee safe injection through skin,and they are suitable for delivering drugs in micro-volumes.