End-fill electrochemical-based analytical test strip with perpendicular intersecting sample-receiving chambers
First Claim
1. An electrochemical-based analytical test strip for the determination of an analyte in a bodily fluid sample, the electrochemical-based analytical test strip comprising:
- a sample-entry chamber with a sample-application opening, the sample-application opening disposed on an end edge of the electrochemical-based analytical test strip;
a first sample-determination chamber in direct fluidic communication with the sample-entry chamber;
a second sample-determination chamber in direct fluidic communication with the sample-entry chamber;
a first electrode and a second electrode disposed in the first sample-determination chamber;
at least a third electrode and a fourth electrode disposed in the second sample-determination chamber, andwherein the first sample-determination chamber and the second sample-determination chamber intersect the sample-entry chamber nearly perpendicular to one another; and
wherein the first sample-determination chamber intersects the sample-entry chamber in an aligned manner.
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Abstract
An electrochemical-based analytical test strip for the determination of an analyte (such as glucose) in a bodily fluid sample (for example, a whole blood sample) and/or a characteristic of the bodily fluid sample (e.g., hematocrit) includes a sample-entry chamber with a sample-application opening disposed on an end edge of the electrochemical-based analytical test strip, and first and second sample-determination chambers, each in direct fluidic communication with the sample-entry chamber. The electrochemical-based analytical test strip also includes first and second electrodes (such as first and second hematocrit electrodes) disposed in the first sample-determination chamber, and a third and fourth electrodes (for example working and reference electrodes) disposed in the second sample-determination chamber. Moreover, the first and second sample-determination chambers intersect the sample-entry chamber perpendicular (or nearly perpendicular) to one another and the first sample-determination chamber also intersects the sample-entry chamber in an aligned manner.
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Citations
21 Claims
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1. An electrochemical-based analytical test strip for the determination of an analyte in a bodily fluid sample, the electrochemical-based analytical test strip comprising:
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a sample-entry chamber with a sample-application opening, the sample-application opening disposed on an end edge of the electrochemical-based analytical test strip; a first sample-determination chamber in direct fluidic communication with the sample-entry chamber; a second sample-determination chamber in direct fluidic communication with the sample-entry chamber; a first electrode and a second electrode disposed in the first sample-determination chamber; at least a third electrode and a fourth electrode disposed in the second sample-determination chamber, and wherein the first sample-determination chamber and the second sample-determination chamber intersect the sample-entry chamber nearly perpendicular to one another; and wherein the first sample-determination chamber intersects the sample-entry chamber in an aligned manner. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for determining an analyte in a bodily fluid sample, the method comprising:
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applying a bodily fluid sample to a sample application opening of a sample-entry chamber of an electrochemical-based analytical test strip such that the applied bodily fluid sample is transported into a first sample-determination chamber and a second sample-determination chamber of the electrochemical-based analytical test strip, and determining a characteristic of the applied bodily fluid sample, using a first electrode and a second electrode disposed in the first sample-determination chamber, and an analyte in the bodily fluid sample using at least a third electrode and a fourth electrode disposed in the second sample-determination chamber; wherein the first sample-determination chamber and the second sample-determination chamber intersect the single sample-entry chamber nearly perpendicular to one another; and wherein the first sample-determination chamber intersects the sample-entry chamber in an aligned manner, and wherein the sample-application opening is disposed on an end edge surface of the electrochemical-based analytical test strip. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification