公开(公告)号：US20220250068A1

公开(公告)日：2022-08-11

申请号：US17630606

申请日：2021-03-09

Applicant: BOE Technology Group Co., Ltd.

Inventor： Weifeng XU

IPC: B01L3/00

Abstract: A microfluidic chip and a detection system. The microfluidic chip comprises fluid inlet channels (21) and a microvalve (1), and the microvalve (1) comprises a magnetic valve core (12), a valve core movement channel (11) and a magnetic control device (13); the valve core movement channel (11) is provided with at least two adapter openings (111), and at least one adapter opening (111) is connected to the fluid inlet channels (21); the magnetic valve core (12) is located in the valve core movement channel (11) and may move in the valve core movement channel (11), and the radial size of the magnetic valve core (12) is greater than that of each adapter opening (111); and the magnetic control device (13) is located outside the valve core movement channel (11), and is configured to move along the valve core movement channel (11) so as to drive the magnetic valve core (12) to move in the valve core movement channel (11).

公开(公告)号：US20240175521A1

公开(公告)日：2024-05-30

申请号：US17790332

申请日：2021-08-17

Applicant: Beijing BOE Technology Development Co., Ltd. ,  BOE Technology Group Co., Ltd.

Inventor： Beiyuan FAN ,  Weifeng XU ,  Ding DING

IPC: F16K99/00

CPC classification number: F16K99/0015 ,  F16K99/0046 ,  F16K2099/0084

Abstract: A control valve structure, a using method thereof, a microfluidic chip, and a nucleic acid extraction device. The control valve structure includes: a cover plate layer, a first channel layer, a first adhesive layer, a second channel layer, at least one valve core, and at least one elastic film. When the valve core is embedded in the first limiting hole, the elastic film seals the first limiting hole, and the second limiting hole, the first through hole and the liquid outlet channel form a sample liquid flow channel; and when the valve core is embedded in the second limiting hole, the elastic film seals the second limiting hole so as to block the sample liquid flow channel.

公开(公告)号：US20230116464A1

公开(公告)日：2023-04-13

申请号：US17605348

申请日：2021-01-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Weifeng XU ,  Beiyuan FAN ,  Da LI ,  Ding DING

IPC: B01L3/00 ,  B01L9/00

Abstract: A device and a driving method for driving a microfluidic chip are disclosed. The device for driving a microfluidic chip includes a carrying member configured to carry the microfluidic chip; a releasing member configured to electrically connected to the microfluidic chip, and control the release of the reagent of the microfluidic chip a valve control member configured to control the opening and closing of the flow channel in the valve control area of the microfluidic chip when the valve control area is within the valve control range of the valve control member a fluid driving member configured to drive the flow of fluid in the microfluidic chip, and a controller configured to control the driving process of the microfluidic chip.

公开(公告)号：US20220033591A1

公开(公告)日：2022-02-03

申请号：US17198406

申请日：2021-03-11

Applicant: BOE Technology Group Co., Ltd.

Inventor： Weifeng XU

IPC: C08J3/075 ,  C12Q1/6844

Abstract: The present disclosure can provide a gel precursor, a nucleic acid amplification reagent gel, a storage chip and a using method thereof. The gel precursor includes: a sodium alginate main solution mixed with at least one of the following components: starch, dextrin, chitosan, agarose and gelatin, where the sodium alginate main solution has a mass concentration range from 0.01% w/v to 5% w/v.