Analyte sensors and methods of use
First Claim
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1. A method of analyzing a ketone body in a biological fluid sample, the method comprising:
- contacting an inlet region of a biosensor having multi-directional fill capabilities with the sample to provide sample into a sample chamber of the sensor, the sensor comprising;
a first electrode pair, wherein electrodes of the first electrode pair are spaced in a lateral direction with respect to each other in the sample chamber, anda second electrode pair, wherein electrodes of the second electrode pair each comprise an electrode portion and a trace portion and wherein entire electrode portions of the electrodes of the second electrode pair are spaced in a longitudinal direction with respect to each other in the sample chamber,wherein the second electrode pair is positioned in between the first electrode pair,the first and second electrode pairs placed on a first surface within the sample chamber, the first electrode pair being a pair of indicator electrodes;
contacting the indicator electrode pair with the sample in the sample chamber; and
after contacting each electrode of the indicator electrode pair with the sample, beginning analysis of the ketone body at the second electrode pair.
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Abstract
In vitro analyte sensors and methods of analyte determination are provided. Embodiments include sensors that include a pair of electrodes to monitor filling of the sample chamber with sample.
30 Citations
28 Claims
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1. A method of analyzing a ketone body in a biological fluid sample, the method comprising:
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contacting an inlet region of a biosensor having multi-directional fill capabilities with the sample to provide sample into a sample chamber of the sensor, the sensor comprising; a first electrode pair, wherein electrodes of the first electrode pair are spaced in a lateral direction with respect to each other in the sample chamber, and a second electrode pair, wherein electrodes of the second electrode pair each comprise an electrode portion and a trace portion and wherein entire electrode portions of the electrodes of the second electrode pair are spaced in a longitudinal direction with respect to each other in the sample chamber, wherein the second electrode pair is positioned in between the first electrode pair, the first and second electrode pairs placed on a first surface within the sample chamber, the first electrode pair being a pair of indicator electrodes; contacting the indicator electrode pair with the sample in the sample chamber; and after contacting each electrode of the indicator electrode pair with the sample, beginning analysis of the ketone body at the second electrode pair. - View Dependent Claims (2, 3)
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4. A method of analyzing a ketone body in a biological fluid sample, the method comprising:
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contacting an inlet region of a biosensor having multi-directional fill capabilities with the sample to provide sample into a sample chamber of the sensor; contacting a first electrode pair and a second electrode pair with the sample in the sample chamber, wherein electrodes of the first electrode pair are spaced in a lateral direction with respect to each other in the sample chamber, wherein electrodes of the second electrode pair each comprise an electrode portion and a trace portion and wherein entire electrode portions of the electrodes of the second electrode pair are spaced in a longitudinal direction with respect to each other in the sample chamber, and wherein the second electrode pair is positioned in between the first electrode pair; determining if the sample is sufficiently filled; and analyzing of the ketone body.
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5. An integrated system for determining concentration of a ketone body in biological fluid, the system comprising:
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a housing having an interior space; at least one sensor for determining the concentration of ketone body in a sample positioned in the interior space, the sensor comprising a sample chamber configured for multi-directional fill, and at least a first electrode pair, wherein electrodes of the first electrode pair are spaced in a lateral direction with respect to each other in the sample chamber, and a second electrode pair, wherein electrodes of the second electrode pair each comprise an electrode portion and a trace portion and wherein entire electrode portions of the electrodes of the second electrode pair are spaced in a longitudinal direction with respect to each other in the sample chamber, wherein the second electrode pair is positioned in between the first electrode pair, and the first and second electrode pairs placed on a first arrangement surface; and a processor for determining the concentration of ketone body. - View Dependent Claims (6)
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7. A sensor for determining the concentration of a ketone body in a sample, the sensor comprising:
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a sample chamber; a first electrode pair, wherein electrodes of the first electrode pair are spaced in a lateral direction with respect to each other in the sample chamber, a second electrode pair, wherein electrodes of the second electrode pair each comprise an electrode portion and a trace portion and wherein entire electrode portions of the electrodes of the second electrode pair are spaced in a longitudinal direction with respect to each other in the sample chamber, wherein the second electrode pair is positioned in between the first electrode pair; and sensing chemistry for determining concentration of ketone body in a sample. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A sensor for determining the concentration of a ketone body in a sample, the sensor comprising:
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a sample chamber configured for multi-directional fill; and a first electrode pair, wherein electrodes of the first electrode pair are spaced in a lateral direction with respect to each other in the sample chamber, and a second electrode pair, wherein electrodes of the second electrode pair each comprise an electrode portion and a trace portion and wherein entire electrode portions of the electrodes of the second electrode pair are spaced in a longitudinal direction with respect to each other in the sample chamber, wherein the second electrode pair is positioned in between the first electrode pair, and the first and second electrode pairs placed on a first surface within the sample chamber, the first electrode pair being a pair of indicator electrodes. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification