Title :
Three-way microvalve for blood flow control in medical micro total analysis systems (μTAS)
Author :
Ohori, Takahiro ; Shoji, Shuichi ; Miura, Keisuke ; Yotumoto, Akira
Author_Institution :
Dept. of Electron. & Commun. Eng., Waseda Univ., Tokyo, Japan
Abstract :
In order to realize a medical micro total analysis system in practical use, a partly disposable 3-way microvalve was developed. The separate channel structure and pneumatic actuation are employed considering the problems of whole blood handling. It has the advantages of easy assembly, large on/off flow ratio (about 104), no bubble problem, low cost due to the partly disposable structure and perfect process matching to micro chemical sensors (amperometric sensors or ISFETs)
Keywords :
biocontrol; biomedical measurement; biosensors; chemical sensors; flow control; haemodynamics; microactuators; micropumps; pneumatic control equipment; valves; μTAS; ISFETs; amperometric sensors; assembly; blood flow control; channel structure; low cost; medical micro total analysis systems; micro chemical sensors; on/off flow ratio; partly disposable 3-way microvalve; pneumatic actuation; process matching; three-way microvalve; whole blood handling; Blood flow; Calibration; Cleaning; Coagulation; Communication system control; Control systems; Costs; Detectors; Medical control systems; Microvalves;
Conference_Titel :
Micro Electro Mechanical Systems, 1997. MEMS '97, Proceedings, IEEE., Tenth Annual International Workshop on
Conference_Location :
Nagoya
Print_ISBN :
0-7803-3744-1
DOI :
10.1109/MEMSYS.1997.581847
