Microfluidic reduction of diffusion and complience effect in...

B - Operations – Transporting – 01 – F

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B01F 5/00 (2006.01) B01F 15/04 (2006.01) G01N 15/06 (2006.01)

Patent

CA 2618105

Micro fluidic Systems, Devices and Methods for Reducing Diffusion and Compliance Effects at a Fluid Mixing Region (110). According to one embodiment, a micro fluidic device is provided for combining fluids in a mixing region. The micro fluidic device can include a fluid-mixing region connected to a first and second micro scale channel. The micro scale channels can advance fluids to the fluid-mixing region. The micro scale channels can include constricted flow portions. According to another embodiment, the micro scale channels can be connected to waste channels for removing fluid diffused into one of the channels from the other channel. According to yet another embodiment, a micro fluidic system is provided for controlling the flow of fluids through the micro scale channels for reducing or eliminating diffusion between the channels (108).

L'invention concerne des systèmes, des dispositifs et des procédés microfluidiques pour la réduction des effets de diffusion et de compliance au niveau d'une zone de mélange de fluides. Selon un mode de réalisation, un dispositif microfluidique est prévu pour combiner des fluides dans une zone de mélange. Le dispositif microfluidique peut comprendre une zone de mélande de fluides reliée à un premier et à un second microcanal. Les microcanaux peuvent acheminer des fluides vers la zone de mélange de fluides. Les microcanaux peuvent comprendre des parties d'écoulement rétrécies. Dans un autre mdoe de réalisation, les microcanaux peuvent être reliés à des canaux d'évacuation pour l'élimination de fluide diffusé dans un des canaux à partir de l'autre canal. Selon un autre mode de réalisation encore, un système microfluidique est prévu pour réguler l'écoulement de fluides dans les microcanaux de manière à réduire ou à éliminer la diffusion entre les canaux.

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