Patent ID: 8220493
Filing Date: 2012-07-17
Classification: A61M,B01L,F04B,F16K,Y10T

Abstract:
1. A fluidic diode comprising a first layer having a fluid path thereon, wherein the fluid path contains a discontinuity; a second layer having a recess thereon; and a third layer of elastomeric material, wherein the third layer is sandwiched between the first layer and second layer such that the recess is in direct alignment with the discontinuity and the elastomeric material is in contact with the discontinuity; wherein the third layer is configured to be deflected by pressure of a fluid in the fluid path of the first layer; and wherein at a selected pressure, the fluid force at the upstream fluid path is sufficient to deflect the third layer into the recess in the second layer, while the same pressure at the downstream fluid path is not sufficient to deflect the third layer into the recess in the second layer.