Patent ID: 8104515
Filing Date: 2012-01-31
Classification: B01L,B29C,B33Y,B81B,B81C,C12Q,F04B,F15C,F16K,Y10T

Abstract:
1. A microfabricated elastomeric device comprising: a planar substrate; a first elastomeric layer having a top surface and a bottom surface, the bottom surface comprising a first recess, wherein the bottom surface of the first elastomeric layer is bonded to the planar substrate such that the first recess forms a first flow channel; and a second elastomeric layer having a top surface and a bottom surface, the bottom surface comprising a second recess, wherein the bottom surface of the second elastomeric layer is bonded to the top surface of the first elastomeric layer such that the second recess forms a second flow channel, wherein the first and second elastomeric layers form an elastomeric structure, wherein the second flow channel extends across and above the first flow channel such that a fluid flow within the second flow channel is directed from before a first side of the first flow channel to beyond a second side of the first flow channel, and wherein a portion of the first elastomeric layer is a deflectable portion and is deflectable into the first flow channel upon pressurization of the second flow channel to form a planar sealing surface between the planar substrate and the deflectable portion of the first elastomeric layer.