Patent ID: 7189368
Filing Date: 2007-03-13
Classification: B01F,B01J,B01L,G01N,Y10T

Abstract:
1. A microfluidic device which comprises a first set having two or more microchannel structures, each of which comprises a structural unit comprising one or more inlet microconduits, a microcavity, an outlet microconduit downstream said one or more microcavity, and a flow path for a liquid passing through either of said inlet microconduits, said microcavity and said outlet microconduit, wherein each outlet microconduit in said two or more microchannel structures is a restriction microconduit having a pressure drop means, wherein the pressure drop means comprises a cross-sectional area of the restriction microconduit that is ≦0.25 of the largest cross-sectional area of the inlet microconduits or of the microcavity in each of said microchannel structures and/or the length of the restriction microconduit is ≧4 times the length of the inlet microconduit or the microcavity in each of said microchannel structures.