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Actuated valve or pump for microfluidic devices
Actuated valve or pump for microfluidic devices
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机译：微流体装置的致动阀或泵
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摘要
Systems and methods disclosed herein related to an apparatus including a fluid flow plate and a microfluidic valve assembly. The fluid flow plate includes a plurality of polymer layers that define a fluid flow passage through the microfluidic valve assembly. The microfluidic valve assembly includes a valve seat, a flexible membrane, a valve cavity, a valve head, and an actuator. The actuator is configured to selectively control pressure applied by the valve head to the flexible membrane, such that in a first actuator state the valve head depresses the flexible membrane into the valve cavity and into contact with the valve seat, thereby preventing fluid flow through the valve assembly, and in a second state, the valve head and the flexible membrane are retracted substantially out of the valve cavity allowing fluid to flow through the valve assembly. In various implementations, the valve seat and/or the flexible membrane include an elastomer layer.
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