Patent ID: 6431212
Filing Date: 2002-08-13
Classification: B01D,B01F,B01L,F16K,G01N,Y10T

Abstract:
A microfluidic structure, comprising:a first layer of flexible material having a top side and a bottom side; a second layer of flexible material having a top side and a bottom side; a first spacing layer contacting said bottom side of said first layer and said top side of said second layer for separating said first and second layers, forming a first microfluidic channel; a third layer of flexible material having a top side and a bottom side; a second spacing layer contacting said bottom side of said second layer and said top side of said third layer for separating said second and third layers forming a second microfluidic channel; wherein said second layer contains an opening forming an actuator section within said second layer, said actuator section shiftable between a first unactuated position in contact with said first spacing layer such that said first and second microfluidic channels are isolated from each other and a second actuated position such that said first and second microfluidic channels are in fluid communication with each other.