US 11,986,821 B2
Detection chip
Xiaohe Shen, Beijing (CN); Chungen Yuan, Beijing (CN); Haochen Cui, Beijing (CN); Lijiao Hu, Beijing (CN); Tao Hu, Beijing (CN); Jing Li, Beijing (CN); and Weiqiong Gan, Beijing (CN)
Assigned to BEIJING BOE HEALTH TECHNOLOGY CO., LTD., Beijing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/041,544
Filed by BEIJING BOE HEALTH TECHNOLOGY CO., LTD., Beijing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Nov. 13, 2019, PCT No. PCT/CN2019/118077
§ 371(c)(1), (2) Date Sep. 25, 2020,
PCT Pub. No. WO2021/092801, PCT Pub. Date May 20, 2021.
Prior Publication US 2023/0022752 A1, Jan. 26, 2023
Int. Cl. B01L 3/00 (2006.01)
CPC B01L 3/502753 (2013.01) [B01L 2300/048 (2013.01); B01L 2300/0681 (2013.01); B01L 2300/0816 (2013.01); B01L 2300/0819 (2013.01); B01L 2300/087 (2013.01); B01L 2300/0877 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A detection chip, comprising a sample injection structure, a filter structure, and a reaction structure which are sequentially connected,
wherein the reaction structure includes a reaction reagent to interact with a sample injected through the sample injection structure,
wherein the filter structure comprises a first main body, and a first inlet portion and a first outlet portion respectively on two sides of the first main body,
a width of the first inlet portion gradually decreases in a direction away from the first main body, and a width of the first outlet portion gradually decreases in a direction away from the first main body;
the detection chip further comprises a filter film, the filter film is in the filter structure,
the detection chip further comprises a mixing structure defining a mixing chamber, the mixing structure is connected between the sample injection structure and the filter structure,
the filter structure further comprises a groove at the first inlet portion, and a height of the groove is greater than a height of the filter structure by 0.2 mm to 1 mm, such that the groove protrudes from the filter structure,
the detection chip further comprises a first flow channel, the mixing structure is connected to the groove through the first flow channel,
the first flow channel comprises a first portion and a second portion, the first portion extends into the first inlet portion of the filter structure to be connected to the groove, the second portion is between the mixing structure and the filter structure, and a height of the first portion is greater than a height of the second portion.