METHOD FOR DETERMINING THE ELECTROCHEMICAL CHARACTERISTIC OF A TEST STRIP
First Claim
1. A method for determining an electrochemical characteristic associated with a test strip, comprising:
- applying a homogenizing process to the test strip to homogenize the electrochemical characteristic;
conducting a quality assurance test with an inspection electric potential on the test strip; and
subjecting the test strip to a reverse electric potential adapted to substantially restore the test strip back to an original condition before the inspection electric potential is applied.
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Accused Products
Abstract
This invention relates to a non-destructive means to determine electrochemical characteristics in biosensor test strips, including first applying a cyclic oxidative and reductive electric potential onto the inspection pads connecting to the reference electrode and working electrode, on which lies a drop of enzyme reagent solution, to homogenize the electrochemical characteristics of the biosensor test strips, and then applying an inspection electric potential within a short period of time over the inspection pads connecting to the reference electrode and working electrode to measure its electrical resistance to identify any abnormal biosensor test strips if present. Afterwards, embodiments of the present invention applies a reverse electric potential, having the same time interval as the inspection electric potential, onto the inspection pads connecting to the reference electrode and working electrode to prevent degradation on mediators such as potassium ferricyanide.
3 Citations
20 Claims
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1. A method for determining an electrochemical characteristic associated with a test strip, comprising:
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applying a homogenizing process to the test strip to homogenize the electrochemical characteristic; conducting a quality assurance test with an inspection electric potential on the test strip; and subjecting the test strip to a reverse electric potential adapted to substantially restore the test strip back to an original condition before the inspection electric potential is applied. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for determining an electrochemical characteristic associated with a first test section of a test strip, comprising:
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applying a homogenizing process to the first test section of the test strip to homogenize the electrochemical characteristic; conducting a quality assurance test with an inspection electric potential on the first test section; and subjecting the first test section to a reverse electric potential adapted to substantially restore the first test section back to an original condition before the inspection electric potential is applied, wherein the test strip further comprises a second test section, and the first test section can be separated from the test strip through an associated pre-break line. - View Dependent Claims (18)
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19. A test strip for measuring blood glucose in a blood sample, comprising:
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a working electrode; a reference electrode; and an enzyme reagent placed between the working electrode and the reference electrode, wherein quality of the test strip is assured through a method comprising applying a homogenizing process to the test strip to homogenize an electrochemical characteristic, conducting a quality assurance test with an inspection electric potential on the test strip, and subjecting the test strip to a reverse electric potential adapted to substantially restore the test strip back to an original condition before the inspection electric potential is applied. - View Dependent Claims (20)
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Specification