In vitro analyte sensor and methods of use
First Claim
Patent Images
1. A cantilevered analyte sensor for determining the concentration of an analyte in a sample, the sensor comprising:
- a first substrate and a second substrate;
a sample chamber positioned between the first and second substrates; and
an overhanging substrate wall at a sample receiving end of the sensor, wherein the sample chamber comprises at least two unbounded sides at the sample receiving end of the sensor.
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Abstract
In vitro electrochemical sensors that provide accurate and repeatable analysis of a sample of biological fluid are provided. Embodiments include sensors that include a sample chambers having overhangs extending therefrom.
18 Citations
39 Claims
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1. A cantilevered analyte sensor for determining the concentration of an analyte in a sample, the sensor comprising:
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a first substrate and a second substrate; a sample chamber positioned between the first and second substrates; and an overhanging substrate wall at a sample receiving end of the sensor, wherein the sample chamber comprises at least two unbounded sides at the sample receiving end of the sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 19, 20, 23, 24, 26, 29, 32, 38)
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18. A sensor for determining the concentration of an analyte in a sample, the sensor comprising:
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a first substrate and a second substrate; a sample chamber positioned between the first and second substrates; and an overhang configured to form a capillary chamber when positioned in opposition to a surface, wherein the sample chamber comprises at least two unbounded sides at a sample receiving end of the sensor. - View Dependent Claims (21)
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22. An analyte sensor comprising:
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a first substrate and a second substrate; a sample chamber positioned between the first and second substrates; and an overhanging substrate wall at a sample receiving end of the sensor, wherein the sample chamber comprises at least two unbounded sides at the sample receiving end of the sensor providing a single access port, wherein the access port is the only opening in the sample chamber and the access port provides for both the ingress and egress of liquid and gas.
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25. An integrated system for the determination of analyte in biological fluid, the system comprising:
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a housing having an interior space; at least one cantilevered analyte sensor for determining the concentration of an analyte in a sample positioned in the interior space, the sensor comprising; a first substrate and a second substrate; a sample chamber positioned between the first and second substrates; and an overhanging substrate wall at a sample receiving end of the sensor, wherein the sample chamber comprises at least two unbounded sides at the sample receiving end of the sensor; and a processor for determining the concentration of an analyte applied to a sensor.
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27. A system for determining the concentration of an analyte in a sample, the system comprising:
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a cantilevered analyte sensor for determining the concentration of an analyte in a sample, the sensor comprising a first substrate and a second substrate;
a sample chamber positioned between the first and second substrates; and
an overhanging substrate wall at a sample receiving end of the sensor, wherein the sample chamber comprises at least two unbounded sides at the sample receiving end of the sensor; anda meter. - View Dependent Claims (30, 33, 34, 35, 36, 37)
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28. A method of providing a sample to a sample chamber of an analyte sensor comprising:
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contacting an overhang at a sample receiving end of the sensor with the sample to provide the sample to the sample chamber, wherein the analyte sensor comprises; a first substrate and a second substrate; the sample chamber positioned between the first and second substrate; and an overhanging substrate wall at a sample receiving end of the sensor, wherein the sample chamber comprises at least two unbounded sides at the sample receiving end of the sensor. - View Dependent Claims (31)
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39. A kit comprising:
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a cantilevered analyte sensor for determining the concentration of an analyte in a sample, the sensor comprising; a first substrate and a second substrate; a sample chamber positioned between the first and second substrates; and an overhanging substrate wall at a sample receiving end of the sensor, wherein the sample chamber comprises at least two unbounded sides at the sample receiving end of the sensor; and a meter.
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Specification