用于胰岛素推注的压电微泵  

Piezoelectric micro-pump for insulin injection

作　　者：刘国君[1] 范尊强[1] 董景石[1] 杨志刚[1] 程光明[1] 

机构地区：[1]吉林大学机械科学与工程学院,长春130022

出　　处：《吉林大学学报（工学版）》2007年第2期372-376,共5页Journal of Jilin University:Engineering and Technology Edition

基　　金：'863'国家高技术研究发展计划项目(2005AA404220-2)

摘　　要：研制了一种压电驱动式可用于胰岛素推注的微泵,该泵在结构、原理上均有别于传统的胰岛素泵。在实验室中设计、制作了实验样机,为实现样机体积微小化及保证较高的输出精度,整机设计采用迭片式、多腔体串联结构。通过系统的实验测试和研究进一步验证:压电驱动式微泵性能稳定、推注量更易于精确调节、更适宜于微型化,符合可以植入人体内的人工胰腺的未来研发趋势(样机尺寸:φ16.5 mm×60 mm;36 V正弦信号输入,200 Hz条件下最大输出压力为22 kPa,最大流量达到3 mL/min,单脉冲最小流量为7.5×10-5mL)。A micro-pump with unique structure and working principle for the insulin injection actuated by the piezoelectric unimorph was proposed. The pump prototype was designed and manufactured in the laboratory. To realize the structure miniaturization and output precision, the lamination of piezoelectric elements and the series connecting multi-chamber configuration were adopted. Systematic experiments on the prototype demonstrate that the proposed piezoelectric micro-pump is characterized by stable operation capability, easy to adjust the injection dose, adapted to miniaturization and implantable application. The micro-pump prototype overall dimensions are ;（Z516.5 mm × 60 mm, the maximal output flow rate is 3 mL/min with the maximal pressure of 22 kPa under the 36 V sinusoidal wave driving voltage at 200 Hz, the minimal output flow per pulse is 7.5×10^-5mL.

关 键 词：机械设计 压电驱动 胰岛素泵 微泵 微量推注 

分 类 号：TH137.33[机械工程—机械制造及自动化]