Pyrotechnically actuated microvalve

Fluid handling – Destructible or deformable element controlled – Destructible element

Reexamination Certificate

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Details

C137S067000, C137S833000, C251S063000, C251S298000

Reexamination Certificate

active

07096878

ABSTRACT:
The microvalve comprises a mini-piston moving due to the thrust of gases given off by firing of a pyrotechnic charge and comprising an aperture designed to enable communication to be established between ends of microchannels of a microfluidic component. When the ends between which communication is to be established open out onto a face of a first planar substrate, the mini-piston is formed in a second planar substrate, adjoined to the first, and comprises a part that is mobile in translation or in rotation in the plane of the second substrate. If a transverse slot is arranged between the ends of the microchannels between which communication is to be established, the mini-piston comprises a rod designed to slide in the slot and the aperture is formed by a transverse orifice formed in the rod of the mini-piston.

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