Microfabricated elastomeric valve and pump systems
First Claim
1. A composite structure comprising:
- a nonelastomer substrate having a surface bearing a first recess extending along a length within the nonelastomer substrate to permit fluid flow along the length;
an elastomeric layer overlying the nonelastomer substrate and bearing a second recess crossing-over the first recess, the elastomeric layer including a flexible elastomer membrane that forms a ceiling of the first recess, the membrane able to be actuated into the first recess to control a flow rate of the fluid flow along the length of the first recess in response to a variation in pressure in the second recess.
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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.
303 Citations
3 Claims
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1. A composite structure comprising:
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a nonelastomer substrate having a surface bearing a first recess extending along a length within the nonelastomer substrate to permit fluid flow along the length; an elastomeric layer overlying the nonelastomer substrate and bearing a second recess crossing-over the first recess, the elastomeric layer including a flexible elastomer membrane that forms a ceiling of the first recess, the membrane able to be actuated into the first recess to control a flow rate of the fluid flow along the length of the first recess in response to a variation in pressure in the second recess. - View Dependent Claims (2, 3)
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Specification