Single use microfluidic valve

摘要

A microfluidic valve including a microchannel, a membrane arranged so as to seal off the microchannel and equipped with resistive units, characterized in that at least one face of the membrane includes at least one groove, and in that the resistive units are arranged in the groove and are capable, when an electric control current flows through them, of expanding sufficiently under the effect of the heat produced by the flow of the electric current to cause the rupture of at least one part of the membrane.

主权项

1. A microfluidic valve comprising:
a substrate; a microchannel within said substrate; a membrane arranged on said substrate so as to seal off said microchannel, said membrane including a resistive element, and at least one face of said membrane including at least one groove forming a predetermined area of weakness, said groove extending at least in part directly opposite said microchannel, wherein said resistive element is arranged in and extends through said groove such that, when an electric control current flows through said resistive element, said resistive element expands due to an effect of heat produced by the flow of said electric control current to cause a rupture of at least one part of said membrane.