Feng Gao (Inventor), Ari Hokkanen (Inventor), Jyrki Kiihamäki (Inventor), Päivi Heimala (Inventor)

Research output: PatentPatent


The application relates to microfluidic needles and their manufacturing methods. The microfluidic needle comprises an interface portion containing at least one fluid communication channel, an elongated needle portion (40) projecting away from the interface portion (44), the needle portion having a tip and sidewalls connecting the tip to the interface portion, and at least two microfluidic channels (43 A-B) within the needle portion in fluidic connection with the at least one communication channel, the microfluidic channels being at least partly oriented parallel to the elongated needle portion. According to the application, the microfluidic channels exit the needle portion at the sidewalls of the needle portion. The needle may be fabricated by ALD-assisted silicon micromachining. The needle can be used for injection and/or sampling fluids to/from tissue or individual cells.

Patent family as of 9.9.2021
DE602010028769 D1 20151217 DE201060028769T 20100420      
EP2421596 A2 20120229 EP20100718626 20100420      
EP2421596 B1 20151104 EP20100718626 20100420      
FI20095433 A0 20090420 FI20090005433 20090420      
US2012058506 AA 20120308 US20100265290 20100420      
US9462969 BB 20161011 US20100265290 20100420      
WO10122222 A2 20101028 WO2010FI50318 20100420      
WO10122222 A3 20101216 WO2010FI50318 20100420

Link to current patent family on right 

Original languageEnglish
Patent numberEP2421596
IPCB81B 1/ 00 A I
Priority date20/04/10
Publication statusPublished - 29 Feb 2012
MoE publication typeH1 Granted patent


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