TEST STRIP AND MONITORING DEVICE
First Claim
1. A test strip for electrochemical analysis of an analyte, comprising:
- a substrate having an insertion end for insertion into a monitoring device;
a first conducting electrode on the substrate;
a second conducting electrode on the substrate;
a sensing region situated between the first conducting electrode and the second conducting electrode;
the first conducting electrode extending a first distance from the insertion end of the substrate;
the second conducting electrode extending a second distance from the insertion end of the substrate, wherein the second distance is greater than the first distance.
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Accused Products
Abstract
Test strips and monitoring devices for the electrochemical analysis of analytes are disclosed. An illustrative test strip may include first and second electrodes, offset relative to one another with respect to an insertion end of the test strip. The monitoring device may have a stop and electrical contacts configured to position the test strip such that the offset electrodes are in contact with the electrical contacts of the monitor. In some cases, the insertion end of the test strip and the stop of the monitoring device include one or more features to key the insertion end of the test strip with the stop. Also, one or more programmable devices may be provided on or in the test strip for providing information and/or calibration data to the monitoring device when inserted into the monitoring device. In some embodiments, a monitoring device may be provided that includes a removable Sharps container for storing used test strips.
43 Citations
22 Claims
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1. A test strip for electrochemical analysis of an analyte, comprising:
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a substrate having an insertion end for insertion into a monitoring device; a first conducting electrode on the substrate; a second conducting electrode on the substrate; a sensing region situated between the first conducting electrode and the second conducting electrode; the first conducting electrode extending a first distance from the insertion end of the substrate; the second conducting electrode extending a second distance from the insertion end of the substrate, wherein the second distance is greater than the first distance. - View Dependent Claims (2, 3, 4)
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5. A system for the electrochemical analysis of an analyte in a fluid sample comprising:
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a test strip having an insertion end and an opposite sensing end, the test strip further having a first conducting electrode and a second conducting electrode, wherein the first conducting electrode extends a first distance from the insertion end of the test strip and the second conducting electrode extending a second distance from the insertion end of the test strip, wherein the second distance is greater than the first distance; and a monitor having an slot with a stop configured for receiving and positioning the test strip in the monitor, the monitor having first and second electrical contacts, wherein the first and second electrical contacts are configured to contact the first and second conducting electrodes when a test strip is inserted into the opening of the monitor. - View Dependent Claims (6, 7)
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8. A test strip for electrochemical analysis of an analyte, comprising:
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a substrate having an insertion end for insertion into a monitoring device; a first conducting electrode on the substrate; a second conducting electrode on the substrate; a sensing region situated between the first conducting electrode and the second conducting electrode; and at least part of the insertion end of the test strip having a first portion and a second portion, wherein the first portion extends out past the second portion. - View Dependent Claims (9, 10, 11, 13, 14)
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12. A test strip for electrochemical analysis of an analyte, comprising:
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a substrate having an insertion end for insertion into a monitoring device; a first conducting electrode on the substrate; a second conducting electrode on the substrate; a sensing region situated between the first conducting electrode and the second conducting electrode; and a slot extending from the insertion end of the test strip toward the sending end.
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15. A system for the electrochemical analysis of an analyte in a fluid sample comprising:
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a monitoring device having a stop; and a test strip having an insertion end for insertion into a monitoring device and for rest against the stop, the insertion end of the test strip having one or more features that are keyed to the stop of the monitoring device. - View Dependent Claims (17, 18)
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16. A test strip for electrochemical analysis of an analyte, comprising:
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a substrate; and a programmable impedance circuit on or in the substrate.
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19. A test strip for electrochemical analysis of an analyte, comprising:
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a substrate; a first conductive electrode and a second conductive electrode held by the substrate; a reagent layer deposited on a portion of the first conducting electrode, the reagent layer containing one or more analyte-specific reagents; and a programmable memory secured relative to the substrate for storing one or more information and or calibration data that corresponds to the test strip. - View Dependent Claims (21)
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20. A system for perform an electrochemical analysis of an analyte, comprising:
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a monitoring device for receiving a test strip, the monitoring device and test strip adapted to perform an electrochemical analysis of an analyte placed on the test strip by a user; and a Sharps container removably attached to the monitoring device, the Sharps container having an opening for receiving used test strips. - View Dependent Claims (22)
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Specification