<p>A microfluidic valve structure (10 or 10') is provided. The valve structure (10) includes a valve body (15) having a fluid flow passage (22) formed therein for allowing fluid to flow therethrough. A valve boss (24) is configured to move relative to a valve seat (26) to open and close the fluid flow passage. A plurality of flexible support arms (30A-30D) extend between a wall (20) of the valve body (15) and the valve boss (24) for supporting the valve boss (24) relative to the valve body (15) such that the valve boss (24) engages and disengages the valve seat (26) to close and open the passage.
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