Biochemical test piece
A technology of biochemical test strips and spacers, applied in biochemical equipment and methods, microbiological measurement/inspection, instruments, etc., can solve problems such as increasing the difficulty of dissolution and drying, increasing conductive media, and increasing manufacturing costs
Pending Publication Date: 2022-05-27
APEX BIOTECH
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Problems solved by technology
However, adding a conductive medium will increase the manufacturing cost and increase the difficulty of dissolution and drying
In addition, when measuring high-concentration samples, a bottleneck effect may occur because the electron flow of the working electrode exceeds the total amount that can be reacted by the counter electrode, thereby limiting the range of concentrations that can be measured by biochemical test strips.
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[0071] Embodiments of the present disclosure are discussed in detail below. It should be appreciated, however, that the embodiments provide many applicable inventive concepts that can be embodied in a wide variety of specific contexts. The specific embodiments discussed are merely illustrative of specific ways to make and use the embodiments, and do not limit the scope of the disclosure.
[0072] Like reference numerals are configured to refer to like elements throughout the various views and illustrative embodiments. Reference will now be made in detail to exemplary embodiments illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used in the drawings and the description to refer to the same or like parts. In the drawings, shapes and thicknesses may be exaggerated for clarity and convenience. This description will be directed in particular to elements forming part of, or more directly cooperating with, a device according to the prese...
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Abstract
The invention provides a biochemical test piece. The biochemical test piece comprises an insulating substrate, an electrode unit, a first insulating spacer, a reaction layer and a second insulating spacer, the electrode unit is located on the insulating substrate. The electrode unit comprises a working electrode and a counter electrode, wherein the current density of the counter electrode is greater than that of the working electrode. The first insulating spacer is located on the electrode unit. The first insulating spacer has an opening which at least partially exposes the electrode unit. The reaction layer is located in the opening and electrically connected with the electrode unit. The second insulating spacer is located on the first insulating spacer.
Description
technical field [0001] The present disclosure relates to a biochemical test strip for medical measurement, in particular, to a biochemical test strip for improving the electrical neutrality of the counter electrode. Background technique [0002] In vitro medical measurement plays an extremely important role in today's medical industry. By qualitatively and quantitatively measuring changes in biological body fluids, it can provide index information for rapid diagnosis and treatment of diseases. In medical or biochemical testing, the use of biochemical test strips has become a common technique. [0003] A traditional biochemical test strip has at least two electrodes. After the sample is injected into the reaction area of the biochemical test strip, the electrochemical properties of the sample can be measured through these two electrodes. When the sample undergoes an electrochemical reaction, a current change is generated, and the current change is linearly proportional to ...
Claims
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IPC IPC(8): G01N27/416
CPCG01N27/416G01N27/3272C12Q1/001
Inventor 杨振宇周政郁
Owner APEX BIOTECH