Electrochemical test strip cards that include an integral dessicant
First Claim
1. An electrochemical test strip card, said card comprising;
- at least two electrochemical test strip precursors configured to be singulated from said card, wherein each of said precursors comprises;
(a) a reaction chamber bounded by opposing electrodes and comprising a reagent composition; and
(b) an integrated desiccant;
wherein prior to singulation of said card and during use of an electrochemical test strip, each reaction chamber is in gaseous communication with a desiccant of said card.
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Accused Products
Abstract
Electrochemical test strip cards that can be singulated to produce electrochemical test strips are provided. The electrochemical test cards are made up of two or more electrochemical test strip precursors, where each precursor is characterized by the presence of a dry reagent housing reaction chamber bounded by opposing electrodes. In gaseous communication with each reaction chamber of the card is an integrated desiccant. Also provided are methods of using the subject electrochemical test strips cards, as well as kits that include the same. The subject test strips and cards find use in the detection/concentration determination of a number of different analytes, including glucose.
267 Citations
27 Claims
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1. An electrochemical test strip card, said card comprising;
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at least two electrochemical test strip precursors configured to be singulated from said card, wherein each of said precursors comprises;
(a) a reaction chamber bounded by opposing electrodes and comprising a reagent composition; and
(b) an integrated desiccant;
wherein prior to singulation of said card and during use of an electrochemical test strip, each reaction chamber is in gaseous communication with a desiccant of said card. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An electrochemical test strip comprising:
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(a) a reaction chamber bounded by opposing electrodes and comprising a reagent composition; and
(b) a desiccant integrated into said electrochemical test strip wherein during use of said electrochemical test strip said reaction chamber is in gaseous communication with said desiccant. - View Dependent Claims (10, 11, 12, 13)
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14. A method for determining the concentration of an analyte in a physiological sample, said method comprising:
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(a) introducing said physiological sample into an electrochemical test strip comprising;
(i) a reaction chamber bounded by opposing electrodes and comprising a reagent composition; and
(ii) a desiccant integrated into said electrochemical test strip;
(b) detecting an electrical signal in said reaction zone using said electrodes; and
(c) relating said detected electrical signal to the amount of said analyte in said sample. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A method for determining the concentration of an analyte in a physiological sample, said method comprising:
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(a) singulating an electrochemical test strip card to produce an electrochemical test strip, said card comprising at least two electrochemical test strip precursors, wherein each of said precursors comprises;
(i) a reaction chamber bounded by opposing electrodes and comprising a reagent composition; and
(ii) an integrated desiccant;
prior to singulation of said card, each reaction chamber is in gaseous communication with a desiccant of said card;
(b) following said singulation, introducing said physiological sample into said singulated electrochemical test strip;
(c) detecting an electrical signal in said reaction zone using said electrodes; and
(d) relating said detected electrical signal to the amount of said analyte in said sample.
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21. A kit for use in determining the concentration of an analyte in a physiological sample, said kit comprising:
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(a) an electrochemical test strip card comprising at least two electrochemical test strip precursors configured to be singulated from said test strip card, wherein each of said precursors comprises;
(i) a reaction chamber bounded by opposing electrodes and comprising a reagent composition; and
(ii) an integrated desiccant;
wherein prior to after singulation of said card each reaction chamber is in gaseous communication with said integrated dessicant; and
(b) at least one of;
(i) a means for obtaining said physiological sample; and
(ii) an analyte standard. - View Dependent Claims (22)
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23. A system for use in determining the concentration of an analyte in a physiological sample, said system comprising:
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(a) an electrochemical test strip comprising;
(i) a reaction chamber bounded by opposing electrodes and comprising a reagent composition; and
(ii) a desiccant integrated into said electrochemical test strip wherein during use of said electrochemical test strip said reaction chamber is in gaseous communication with said desiccant; and
(b) a meter.
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24. An electrochemical test strip card, said card comprising;
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at least two electrochemical test strip precursors configured to be singulated from said card, wherein each of said precursors comprises;
(a) a reaction chamber bounded by opposing electrodes and comprising a reagent composition; and
(b) a desiccant chamber housing a desiccant material;
wherein prior to singulation of said card, each reaction chamber is in gaseous communication with a desiccant of an adjacent percursor. - View Dependent Claims (25, 26)
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27. An electrochemical test strip comprising:
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(a) a reaction chamber bounded by opposing electrodes and comprising a reagent composition; and
(b) a desiccant chamber housing a desiccant, wherein said desiccant chamber is not in gaseous communication with said reaction chamber.
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Specification