US 12,405,241 B2
Electrochemical test strip for testing multiple indicators, and testing method thereof
Yu Long Sun, Zhejiang (CN); Yan Cheng, Zhejiang (CN); Li Zhang, Zhejiang (CN); Yong Gang Huang, Zhejiang (CN); and Jin Liang Shi, Zhejiang (CN)
Assigned to LEADWAY (HK) LIMITED, Sheung Wan Hong Kong (CN)
Appl. No. 18/003,383
Filed by LEADWAY (HK) LIMITED, Sheung Wan Hong Kong (CN)
PCT Filed Jan. 13, 2021, PCT No. PCT/CN2021/071526
§ 371(c)(1), (2) Date Dec. 27, 2022,
PCT Pub. No. WO2021/143730, PCT Pub. Date Jul. 22, 2021.
Claims priority of application No. 202020074643.1 (CN), filed on Jan. 14, 2020.
Prior Publication US 2024/0302312 A1, Sep. 12, 2024
Int. Cl. G01N 27/30 (2006.01); G01N 27/327 (2006.01); G01N 27/416 (2006.01)
CPC G01N 27/307 (2013.01) [G01N 27/3275 (2013.01); G01N 27/4161 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An electrochemical test strip for detecting multiple indicators, comprising a first biosensor which comprises an insulating substrate, a first electrode system disposed on the insulating substrate, a first channel forming layer and a first upper cover layer, a first channel forming area disposed in the first channel forming layer, the first channel forming area disposed above at least one electrode of the first electrode system, wherein the electrochemical test strip further comprises a second biosensor, and the second biosensor comprises an insulating substrate, a second electrode system disposed on the insulating substrate, a second channel forming layer and a second upper cover layer, a second channel forming area disposed in the second channel forming layer, the second channel forming area disposed above at least one electrode of the second electrode system; the first biosensor and the second biosensor are located on the front and back sides of the electrochemical test strip, respectively, and the electrical connection end of the first biosensor and the electrical connection end of the second biosensor are located at the same end of the electrochemical test strip; and the sample addition port of the electrochemical test strip is in liquid communication with the first channel forming area of the first biosensor and the second channel forming area of the second biosensor, respectively, wherein the sample addition port comprises a notch in the first upper cover layer and a notch in the second upper cover layer.