医用微喷雾化器中喷孔分布结构研究  

Distributing structure of nozzles in medical micro-jet device

作　　者：杜桂彬[1] 周兆英[1] 朱俊华[1] 

机构地区：[1]清华大学精密仪器与机械学系,北京市100084

出　　处：《医疗卫生装备》2005年第6期1-2,共2页Chinese Medical Equipment Journal

基　　金：国家高科技研究发展计划(2003AA404170)资助

摘　　要：为了提高医用微喷雾化器喷孔的利用率和流量,以仿真结果为基础,优化设计了微喷雾化器中喷孔的分布结构,并采用MEMS工艺对其进行制备。实验研究表明,改进后的微喷雾化器喷射的液滴在直径和喷射速度上的分布接近正态分布,平均速度达到2.93m/s,流量达到11.77μl/s。This paper designs a new distributing structure of nozzles in medical micro-jet device on the bases of emulating results. This new structure can improve the output coefficient and flux of drug delivery. Then, a micro-jet device is fabricated by MEMS technology based on this structure. The experiment results indicate that the number of output droplet is approximated to normal distribution on droplet diameter and velocity. Moreover, the droplet velocity and the flux are both improved in this new micro-jet device, whose values are 2.93m/s and 11.77μl/s respectively.

关 键 词：微喷雾化器 喷孔 流量 MEMS 

分 类 号：TH789[机械工程—仪器科学与技术]