Patent ID: 8191715
Filing Date: 2012-06-05
Classification: B01L,G01N,Y10T

Abstract:
1. A centrifugal force-based microfluidic device comprising: a disc-shaped platform, which can be rotated; a sample injection hole, which is disposed at one side of the disc-shaped platform; a sample separation unit of which one end is connected to the sample injection hole, and which is extended toward the outside of the disc-shaped platform so as to provide a space in which a sample, including particles injected through the sample injection hole, is centrifugally separated into the particles and a fluid by rotation of the disc-shaped platform; a fluid collecting unit, which is connected to a radially inner end of the sample separation unit, and which accommodates a surplus fluid that exceeds a predetermined capacity of the sample separation unit; and at least one outlet valve, which is connected to the sample separation unit, is separately driven, and is disposed in a position in which a fluid having a certain volume of the separated fluid within the sample separation unit can be discharged by rotation of the disc-shaped platform, without use of a separate metering chamber.