US 12,296,337 B2
Electroosmotic micropump apparatus and electroosmotic micropump apparatus group
Meng Gao, Zhejiang (CN); and Le Ye, Zhejiang (CN)
Assigned to HANGZHOU WEIMING XINKE TECHNOLOGY CO., LTD, Zhejiang (CN); and ADVANCED INSTITUTE OF INFORMATION TECHNOLOGY (AIIT)), PEKING UNIVERSITY, Zhejiang (CN)
Appl. No. 17/642,398
Filed by HANGZHOU WEIMING XINKE TECHNOLOGY CO., LTD, Zhejiang (CN); and ADVANCED INSTITUTE OF INFORMATION TECHNOLOGY (AIIT), PEKING UNIVERSITY, Zhejiang (CN)
PCT Filed Sep. 9, 2020, PCT No. PCT/CN2020/114139
§ 371(c)(1), (2) Date Mar. 11, 2022,
PCT Pub. No. WO2021/047529, PCT Pub. Date Mar. 18, 2021.
Claims priority of application No. 201910860201.1 (CN), filed on Sep. 11, 2019.
Prior Publication US 2022/0331794 A1, Oct. 20, 2022
Int. Cl. B01L 3/00 (2006.01)
CPC B01L 3/50273 (2013.01) [B01L 2300/0645 (2013.01); B01L 2300/161 (2013.01); B01L 2400/0418 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An electroosmotic micropump device, comprising:
fluid microchannels, which are configured to communicate a micro flow channel inlet and a micro flow channel outlet for pumping fluid; and
microneedle electrodes, which comprise a first microneedle electrode and a second microneedle electrode provided at the micro flow channel inlet and the micro flow channel outlet respectively, wherein the first microneedle electrode and the second microneedle electrode are arranged opposite to each other, and neither of the first microneedle electrode and the second microneedle electrode is in conduction with the fluid microchannels.