Microfabricated elastomeric valve and pump systems

B - Operations – Transporting – 32 – B

Patent

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Details

B32B 37/00 (2006.01) B29C 69/00 (2006.01) B81C 1/00 (2006.01) F15C 1/06 (2006.01) F15C 1/22 (2006.01) F15C 3/04 (2006.01) F15C 3/16 (2006.01) F15C 5/00 (2006.01) F16K 7/07 (2006.01) F16K 7/17 (2006.01) F16K 7/20 (2006.01)

Patent

CA 2378190

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.

L'invention concerne un procédé de fabrication d'une structure élastomère, consistant à former une première couche élastomère sur un premier moule micro-usiné doté d'une première saillie formant un premier embrèvement s'étendant le long d'une surface inférieure de la première couche élastomère, puis à former une seconde couche élastomère sur un second moule micro-usiné doté d'une seconde saillie formant un second embrèvement s'étendant le long d'une surface inférieure de la seconde couche élastomère. Le procédé consiste ensuite à lier la surface inférieure de la seconde couche élastomère à une surface supérieure de la première couche élastomère de façon qu'un canal de régulation se forme dans le second embrèvement entre la première et la seconde couche élastomère, et à placer la première couche élastomère sur un substrat plat de façon qu'un canal d'écoulement se forme dans le premier embrèvement entre la première couche élastomère et le substrat plat.

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