Microfabricated Elastomeric Valve and Pump Systems
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Accused Products
Abstract
A method of fabricating an elastomeric structure, comprising: forming a first elastomeric layer on top of a first micromachined mold, the first micromachined mold having a first raised protrusion which forms a first recess extending along a bottom surface of the first elastomeric layer; forming a second elastomeric layer on top of a second micromachined mold, the second micromachined mold having a second raised protrusion which forms a second recess extending along a bottom surface of the second elastomeric layer; bonding the bottom surface of the second elastomeric layer onto a top surface of the first elastomeric layer such that a control channel forms in the second recess between the first and second elastomeric layers; and positioning the first elastomeric layer on top of a planar substrate such that a flow channel forms in the first recess between the first elastomeric layer and the planar substrate.
108 Citations
48 Claims
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1-17. -17. (canceled)
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18. A microfabricated elastomeric device comprising:
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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 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 flow channel, wherein the second flow channel extends across and above a 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, and wherein the deflectable portion is characterized by a dead volume. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A microfabricated elastomeric device comprising:
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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 flow channel; 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 flow channel, and wherein the second flow channel extends across and above a first flow channel; and an elastomeric membrane bonded between the first and the second elastomeric layers, separating the first flow channel and the second flow channel, wherein the membrane 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, and wherein the membrane is characterized by a dead volume. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. A microfabricated elastomeric device comprising:
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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 with a top and a bottom wherein the top of the first flow channel has a curved surface; 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 second flow channel extends across and above a 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, and wherein the deflectable portion is characterized by a dead volume. - View Dependent Claims (43, 44, 45, 46, 47, 48)
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Specification