Microfluidic device with auxiliary and bypass channels

摘要

A microfluidic device is provided. The microfluidic device has: a flow inlet and a flow outlet; a bypass channel defining a first flow path away from the flow inlet and toward the flow outlet; and an auxiliary channel defining a second flow path away from the flow inlet and toward the flow outlet, wherein the auxiliary channel defines a reagent area adapted to receive a reagent, and wherein the auxiliary channel joins the bypass channel at a primary junction downstream from the reagent area and upstream from the flow outlet.

主权项

1. A microfluidic device comprising:
a flow inlet and a flow outlet; a bypass channel defining a first flow path away from the flow inlet and toward the flow outlet; and an auxiliary channel defining a second flow path away from the flow inlet and toward the flow outlet,
wherein the auxiliary channel defines a reagent area adapted to receive a reagent,wherein the auxiliary channel joins the bypass channel at a primary junction downstream from the reagent area and upstream from the flow outlet,wherein a quarter-circle portion of the auxiliary channel joins a quarter-circle portion of the bypass channel at the primary junction to form a delay valve,wherein the quarter-circle portion of the auxiliary channel and the quarter-circle portion of the bypass channel merge with an exit path having a greater width than a width of the quarter-circle portion of the auxiliary channel and a width of the quarter-circle portion of the bypass channel, andwherein the auxiliary channel is adapted such that a flow rate of the auxiliary channel at the primary junction is smaller than a flow rate of the bypass channel at the primary junction.