Patent ID: 7695685
Filing Date: 2010-04-13
Classification: B01F

Abstract:
1. A micro fluidic device for treating a fluid in a micro flow path, comprising, a first substrate including a side surface having a dent, a second substrate arranged to face to the side surface of the first substrate, a third substrate arranged to face to another side surface of the first substrate opposite to the side surface so that the first and second substrate contact each other, and a pressing element for pressing the first and second substrates against each other so that a micro flow path, a first micro chamber and a second micro chamber are formed between the dent of the first substrate and the second substrate; and a fourth substrate and a fifth substrate in which the fourth substrate fits and which contains the first, second and third substrate, wherein the pressing element fastens the fourth and fifth substrate with respect to each other, wherein each of the first and second micro chambers includes an inlet, and the micro flow path includes an outlet, wherein the micro flow path extends radially from the first micro chamber, the micro flow path is divided to two intermediate micro flow paths to converge subsequently so that the second micro chamber is arranged between the two intermediate micro flow paths and a partition wall is formed between the second micro chamber and the two intermediate micro flow paths, and the partition wall includes a nozzle for fluidal communication between the second micro chamber and the two intermediate micro flow paths.