US 12,402,817 B2
Biological detection apparatuses, systems and methods
Kui Liang, Beijing (CN); and Shuobin Liang, Beijing (CN)
Assigned to Beijing BOE Technology Development Co., Ltd., Beijing (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Filed by Beijing BOE Technology Development Co., Ltd., Beijing (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Filed on Jun. 27, 2021, as Appl. No. 17/359,604.
Claims priority of application No. 202011545958.0 (CN), filed on Dec. 23, 2020.
Prior Publication US 2022/0192547 A1, Jun. 23, 2022
Int. Cl. A61B 5/145 (2006.01); A61B 5/00 (2006.01); A61B 5/0205 (2006.01); A61B 5/024 (2006.01); A61B 5/1468 (2006.01)
CPC A61B 5/14546 (2013.01) [A61B 5/02055 (2013.01); A61B 5/024 (2013.01); A61B 5/14517 (2013.01); A61B 5/1468 (2013.01); A61B 5/685 (2013.01); A61B 2560/0214 (2013.01); A61B 2562/0271 (2013.01); A61B 2562/028 (2013.01); A61B 2562/164 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A biological detection apparatus, comprising:
a flexible substrate; and
a biosensor provided on the flexible substrate and configured to obtain substance information of a living body,
wherein the biosensor comprises a microelectrode structure, the microelectrode structure comprising:
a first insulating layer;
a protrusion provided at a side of the first insulating layer;
an electrode layer conformally covering the first insulating layer and the protrusion;
a second insulating layer provided at a side of the electrode layer facing away from the first insulating layer, and provided with an opening through which the protrusion protrudes;
a first sensitive functional layer at least covering an area of the electrode layer corresponding to an entirety of the protrusion;
an auxiliary layer at least covering an area of the first sensitive functional layer corresponding to an entirety of the protrusion except for a first through-hole exposing only part of the first sensitive functional layer, wherein the first through-hole is provided in an area of the auxiliary layer corresponding to a top end of the protrusion; and
a second sensitive functional layer entirely covering the auxiliary layer and filling the first through-hole so as to be in contact with the first sensitive functional layer,
wherein the electrode layer is sandwiched between the first and second insulating layers corresponding to an area where there are no protrusions, and the auxiliary layer is sandwiched between the first sensitive functional layer and the second sensitive functional layer.