Method and system for checking an electromechanical biosensor
First Claim
1. A method of operating a meter for determining the concentration of an analyte in a fluid sample, the method comprising the acts of:
- providing a biosensor and a meter;
providing a connector in the meter with a plurality of connector contacts;
positioning a biosensor in the meter, the biosensor including a plurality of leads, at least two of the plurality of leads being configured to contact at least one of the plurality of connector contacts in the meter;
obtaining a first measurement between at least one pair of the plurality of connector contacts via the meter prior to the fluid sample being applied;
determining if a short condition exists based on the first measurement;
obtaining a second measurement between at least one pair of the plurality of connector contacts via the meter after the fluid sample is applied; and
determining if an open condition exists based on the second measurement.
2 Assignments
0 Petitions
Accused Products
Abstract
A method of operating a meter for determining the concentration of an analyte in a current sample and for self-detecting electrical connection errors like short or open circuit between the electrodes of a biosensor. The method includes providing a connector with a plurality of contacts and coupling each of the plurality of contacts to one of a plurality of electrical leads on a biosensor, such that each of the plurality of connector contacts electrically contacts a corresponding one of the plurality of electrical leads. The meter obtains a first measurement between a pair of the plurality of connector contacts prior to the fluid sample being applied. The meter also obtains a second measurement between the pair of the plurality of connector contacts after the fluid sample is applied. In response to either the first or the second measurements being outside a predetermined range, a fault is indicated.
24 Citations
20 Claims
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1. A method of operating a meter for determining the concentration of an analyte in a fluid sample, the method comprising the acts of:
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providing a biosensor and a meter; providing a connector in the meter with a plurality of connector contacts; positioning a biosensor in the meter, the biosensor including a plurality of leads, at least two of the plurality of leads being configured to contact at least one of the plurality of connector contacts in the meter; obtaining a first measurement between at least one pair of the plurality of connector contacts via the meter prior to the fluid sample being applied; determining if a short condition exists based on the first measurement; obtaining a second measurement between at least one pair of the plurality of connector contacts via the meter after the fluid sample is applied; and determining if an open condition exists based on the second measurement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 15, 19)
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8. A method of operating a meter for determining the concentration of an analyte in a fluid sample, the method comprising the acts of:
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positioning a biosensor in the test position, the biosensor including a plurality of leads, the plurality of leads contacting one of a plurality of connector contacts in the meter; obtaining a first current measurement between a pair of the of the plurality of connector contacts via the meter; after obtaining the first current measurement, introducing a fluid sample into the meter; obtaining a second current measurement between the pair of the plurality of connector contacts via the meter after the fluid sample is applied; in response to the first current measurements being outside a predetermined range, indicating a short condition fault; and in response to the second current measurements being outside a predetermined range, indicating an open condition fault. - View Dependent Claims (16)
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9. A test system for determining the concentration of an analyte in a fluid sample, the system comprising:
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a meter having a connector with a plurality of contacts; and a biosensor having a plurality of leads, at least two of the plurality of leads being configured to contact at least two of the plurality of connector contacts; wherein the meter is configured to take a first measurement between a pair of the plurality of connector contacts prior to the fluid sample being applied and a second measurement after the fluid sample is applied, to determine if a short condition exists based on the first measurement, and to determine if an open condition exists based on the second measurement. - View Dependent Claims (10, 11, 12, 13, 14, 17, 20)
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18. A method of operating a meter for determining the concentration of an analyte in a fluid sample, the method comprising the acts of:
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providing a biosensor and a meter; providing a connector in the meter with a plurality of connector contacts; positioning a biosensor in the meter, the biosensor including a plurality of leads, at least two of the plurality of leads being configured to contact at least a respective one of the plurality of connector contacts in the meter; obtaining a first measurement between at least one pair of the plurality of connector contacts via the meter prior to the fluid sample being applied; determining whether at least one of the plurality of connector contacts is in contact with two or more of the plurality of leads based on the first measurement obtained prior to the fluid sample being applied, the determining based on the first measurement prior to the fluid sample being applied including determining whether an open condition exists; obtaining a second measurement between at least one pair of the plurality of connector contacts via the meter after the fluid sample is applied; and determining whether at least one of the plurality of connector contacts is not in contact with any of the plurality of leads based on the second measurement obtained after the fluid sample is applied, the determining based on the second measurement after the fluid sample is applied including determining whether a short condition exists.
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Specification