APPARATUS AND METHOD FOR IMPROVED MEASUREMENTS OF A MONITORING DEVICE
First Claim
1. A test meter, comprising:
- a housing;
a strip port connector attached to the housing, the strip port connector being configured to receive an electrochemical test strip and including at least one electrical connector; and
a circuit configured for making electrochemical determinations and to electrically connect with an electrochemical test strip received in the strip port connector via the at least one electrical connector, the circuit comprising;
a detection component;
a sense resistor in electrical communication with the detection component;
a voltage reference point configured to be in electrical communication with an electrode of an electrochemical test strip in contact with the at least one electrical connector; and
a wetting supply having electrical communication separate from each of the detection component, the sense resistor, and the voltage reference point when an electrochemical test strip devoid of bodily fluid sample is receive in the strip port connector;
wherein the circuit is configured for detecting;
(1) a first voltage in the absence of an electrochemical test strip in electrical communication with the circuit;
(2) a second voltage in the presence of an electrochemical test strip that is devoid of bodily fluid sample in electrical communication with the circuit; and
(3) a third voltage in the presence of an electrochemical test strip in electrical communication with the circuit with an amount of a bodily fluid sample sufficient to perform an electrochemical test in the electrochemical test strip.
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Accused Products
Abstract
Methods and devices for improving measurements of test meter, and in particular for detecting a presence of an electrochemical sensor or strip in the test meter and a start time of an electrochemical reaction, are provided. In one exemplary embodiment of an electrochemical system includes an electrochemical sensor, a test meter, and a circuit. The circuit is configured to form an electrical connection with the electrochemical sensor such that the circuit can detect three distinct voltage ranges. The voltage ranges can be indicative of an absence of the electrochemical sensor, a presence of the sensor that is devoid of a sample, and a presence of the sensor with a sample. Test meters, methods for detecting when a sample starts to fill an electrochemical sensor for establishing when a reaction starts, and circuits for use with electrochemical strips, are also provided.
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Citations
6 Claims
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1. A test meter, comprising:
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a housing; a strip port connector attached to the housing, the strip port connector being configured to receive an electrochemical test strip and including at least one electrical connector; and a circuit configured for making electrochemical determinations and to electrically connect with an electrochemical test strip received in the strip port connector via the at least one electrical connector, the circuit comprising; a detection component; a sense resistor in electrical communication with the detection component; a voltage reference point configured to be in electrical communication with an electrode of an electrochemical test strip in contact with the at least one electrical connector; and a wetting supply having electrical communication separate from each of the detection component, the sense resistor, and the voltage reference point when an electrochemical test strip devoid of bodily fluid sample is receive in the strip port connector; wherein the circuit is configured for detecting; (1) a first voltage in the absence of an electrochemical test strip in electrical communication with the circuit; (2) a second voltage in the presence of an electrochemical test strip that is devoid of bodily fluid sample in electrical communication with the circuit; and (3) a third voltage in the presence of an electrochemical test strip in electrical communication with the circuit with an amount of a bodily fluid sample sufficient to perform an electrochemical test in the electrochemical test strip. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification