Patent ID: 6743636
Filing Date: 2004-06-01
Classification: B01F,B01L,F04B,F04F,Y10T

Abstract:
A microfluid driving device for bi-directional movement control, comprising:a substrate; a microchannel formed in said substrate to allow a fluid to flow inside said microchannel; a first Venturi pump connected to said microchannel to generate a pumping force in a first direction to said fluid in said microchannel, when an airflow is applied to said first Venturi pump; a second Venturi pump connected to said microchannel to generate a pumping force in a second direction to said fluid in said microchannel, when an airflow is applied to said second Venturi pump; and an airflow supply connected to said first and second Venturi pumps to supply airflows to said first Venturi pump, said second Venturi pump, and both said first and second Venturi pumps.