公开(公告)号：US11529629B2

公开(公告)日：2022-12-20

申请号：US15930073

申请日：2020-05-12

Applicant: BBB INC.

Inventor： Hyundoo Hwang ,  Dongsik Han ,  Jaekyu Choi

IPC: B01L3/00 ,  B01D61/18 ,  G01N33/49

Abstract: The present invention relates to a biosensor, including: a blood cell separation membrane which separates blood cells from blood and allows plasma components to pass through; a microfluid channel through which the plasma components that have passed through the blood cell separation membrane flow; a lower substrate which allows the plasma components that have passed through the blood cell separation membrane to flow along the microfluid channel; and a pillar which connects the blood cell separation membrane and the lower substrate, in which an electrode is disposed in the pillar, and the pillar pushes and lifts the blood cell separation membrane by a predetermined distance. The biosensor of the present invention allows plasma, which is difficult to pass through the blood cell separation membrane due to surface tension, to easily pass through.

公开(公告)号：US11607685B2

公开(公告)日：2023-03-21

申请号：US16764606

申请日：2017-12-22

Applicant: BBB Inc.

Inventor： Jaekyu Choi ,  Hyundoo Hwang ,  Dongsik Han

IPC: B01L3/00

Abstract: The present specification discloses a microfluidic analysis chip capable of adjusting movement of a specimen or a reagent by a negative pressure generation unit. A microfluidic analysis chip according to the present specification may comprise: a microtube for a main channel, which provides a space in which a specimen input through a specimen inlet formed at one end thereof reacts with a regent while the specimen moves to the other end thereof; a chip housing surrounding the microtube for the main channel; and a negative pressure generation unit which is positioned in the chip housing and connected to the microtube, so as to affect an internal pressure of the microtube for the main channel.