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US 2015/0021178 A1Published application
Biosensor, biosensor chip and biosensor device
AssigneePanasonic Healthcare Holdings Co., Ltd.
InventorsHiroya Ueno, Junji Nakatsuka
Life of this patent
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Abstract
A biosensor includes a working electrode 101, a counter electrode 102 opposing the working electrode 101, a working electrode terminal 103 and a working electrode reference terminal 10 connected to the working electrode 101 by wires, and a counter electrode terminal 104 connected to the counter electrode 102 by a wire. By employing a structure with at least three electrodes, it is possible to assay a target substance without being influenced by the line resistance on the working electrode side.
Claims27
1-48. (canceled)
A biosensor, comprising:
- a working electrode disposed on a proximal end of the biosensor;
- a counter electrode disposed on the proximal end of the biosensor;
- a working electrode terminal on a distal end of the biosensor;
- a counter electrode terminal on the distal end of the biosensor;
- a first reference terminal on the distal end of the biosensor;
- a second reference terminal on the distal end of the biosensor;
- a first conductive line connecting the working electrode to the working electrode terminal;
- a second conductive line connecting the working electrode to the first reference terminal, at least a portion of the second conductive line disposed outside at least a portion of the first conductive line relative to a centerline that extends between the proximal end and the distal end of the biosensor;
- a third conductive line connecting the counter electrode to the counter electrode terminal;
- and
- a fourth conductive line connecting the counter electrode to the second reference terminal, at least a portion of the fourth conductive line disposed outside at least a portion of the third conductive line relative to the centerline.
8 more elements
A biosensor device, comprising:
- a biosensor comprising:
- a working electrode disposed on a proximal end of the biosensor;
- a counter electrode disposed on the proximal end of the biosensor;
- a working electrode terminal on a distal end of the biosensor;
- a counter electrode terminal on the distal end of the biosensor;
- a first reference terminal on the distal end of the biosensor;
- a second reference terminal on the distal end of the biosensor;
- a first conductive line connecting the working electrode to the working electrode terminal;
- a second conductive line connecting the working electrode to the first reference terminal, at least a portion of the second conductive line disposed outside at least a portion of the first conductive line relative to a centerline that extends between the proximal end and the distal end of the biosensor;
- a third conductive line connecting the counter electrode to the counter electrode terminal;
- and
- a fourth conductive line connecting the counter electrode to the second reference terminal, at least a portion of the fourth conductive line disposed outside at least a portion of the third conductive line relative to the centerline;
- and
- a measurement circuit configured to be connected to the biosensor for performing an assay of a fluid to determine the concentration of a substance in the fluid based on a current flowing between the working electrode and the counter electrode of the biosensor.
11 more elements
Dependencies are inferred from the claim text.