Device and method for separation

B - Operations – Transporting – 01 – D

Patent

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Details

B01D 43/00 (2006.01) A61M 1/34 (2006.01) B01J 8/16 (2006.01)

Patent

CA 2439257

The present invention provides a device and a method for separating particles from fluids using ultrasound, laminar flow, and stationary wave effects comprisinga micro-technology channel system with an integrated branching point or branching fork, and a single ultrasound source. One of the characteristics of the invention is that the single ultrasound source, which generates the standing waves, excites the complete structure including the channel system. No special reflectors or the like are needed. Extremely thin dividers can separate the flow, thereby enhancing the effectiveness of the device. The device could be manufactured in silicon and the ultrasound energy could preferably be delivered by a piezoelectric element.

La présente invention concerne un dispositif et un procédé permettant de séparer des particules de fluides à l'aide d'ultrasons, de flux laminaires et d'effets d'ondes stationnaires. Ce dispositif comprend un système canal de micro-technologie avec une branche ou une fourche intégrée, et une source unique d'ultrasons. L'invention est notamment caractérisée en ce que la source unique d'ultrasons qui génère les ondes stationnaires, émet la structure complète, y compris le système canal. Tout réflecteur spécial ou équivalent devient ainsi superflu. Des diviseurs extrêmement minces permettent de séparer le flux, améliorant ainsi l'efficacité du dispositif. Le dispositif pourrait être fabriqué en silicium et l'énergie ultrasonique pourrait, de préférence, être fournie par un élément piézoélectrique.

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