Biosensor provided with code electrode, method for manufacturing the same, and method for obtaining sensor information from the same
First Claim
1. A biosensor, in which a working electrode and a reference electrode are formed on an inner surface of a lower insulating substrate, a reagent reaction layer is fixed on the inner surface of the lower insulating substrate along a sample path to be in contact with the working electrode and the reference electrode, and an upper insulating substrate is assembled with the lower insulating substrate with a spacer interposed therebetween to form the sample path,wherein a code electrode outputs an electrical signal according to a reaction between a sample and the reaction reagent layer, and provides the electrical signal to a measuring device,wherein the code electrode comprises a code pattern portion, formed by patterning the code electrode at a position which is in contact with the reagent reaction layer, wherein an area of the code pattern portion is varied according to sensor information, wherein the code electrode is configured to output the electrical signal according to the sensor information, andwherein the code pattern portion is patterned by removing a predetermined area of the code electrode such that the contact area with the reagent reaction layer, in which reaction current flows, differs according to a code assigned to a corresponding biosensor based on the sensor information.
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Accused Products
Abstract
The present invention provides a biosensor having a code electrode, a method for manufacturing the same, and a method for obtaining sensor information on the same, in which a code electrode for providing sensor information such as correction information, the type of biosensor, etc. is provided in each biosensor such that a measuring device can obtain necessary information on each biosensor from the code electrode, thus solving a variety of conventional problems.
9 Citations
20 Claims
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1. A biosensor, in which a working electrode and a reference electrode are formed on an inner surface of a lower insulating substrate, a reagent reaction layer is fixed on the inner surface of the lower insulating substrate along a sample path to be in contact with the working electrode and the reference electrode, and an upper insulating substrate is assembled with the lower insulating substrate with a spacer interposed therebetween to form the sample path,
wherein a code electrode outputs an electrical signal according to a reaction between a sample and the reaction reagent layer, and provides the electrical signal to a measuring device, wherein the code electrode comprises a code pattern portion, formed by patterning the code electrode at a position which is in contact with the reagent reaction layer, wherein an area of the code pattern portion is varied according to sensor information, wherein the code electrode is configured to output the electrical signal according to the sensor information, and wherein the code pattern portion is patterned by removing a predetermined area of the code electrode such that the contact area with the reagent reaction layer, in which reaction current flows, differs according to a code assigned to a corresponding biosensor based on the sensor information.
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16. A method for manufacturing a biosensor having a code electrode, the method comprising:
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forming a working electrode and a reference electrode on an inner surface of a lower insulating substrate; forming a second code electrode portion on the inner surface of the lower insulating substrate such that one end thereof is connected to an intermediate conductive portion of a spacer and an other end thereof is connected to a socket terminal of a measuring device; fixing a reagent reaction layer on the inner surface of the lower insulating substrate along a sample path to be in contact with the working electrode and the reference electrode; forming a first code electrode portion, which is in contact with the reagent reaction layer, on an inner surface of an upper insulating substrate; forming a code pattern portion by pattering a specific region of the first code electrode portion, which is in contact with the reagent reaction layer, according to a code assigned to a corresponding biosensor based on sensor information;
fixing the intermediate conductive portion on the spacer; andassembling the upper insulating substrate with the lower insulating substrate with the spacer interposed therebetween to form the sample path such that the intermediate conductive portion of the spacer connects the first code electrode portion and the second code electrode portion, wherein the code pattern portion is patterned by removing a predetermined area of the first code electrode portion such that the contact area with the reagent reaction layer, in which reaction current flows, differs according to the assigned code. - View Dependent Claims (17, 18)
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19. A method for obtaining sensor information on a biosensor, the method comprising:
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providing the biosensor of; applying working voltage to the working electrode and injecting the sample into the sample path after the biosensor is inserted into the measuring device; and
obtaining sensor information on the biosensor based on electrical signals output from the working electrode and the code electrode. - View Dependent Claims (20)
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Specification