Meter
First Claim
1. An apparatus for determining the concentration of a medically significant component of a biological fluid, the apparatus comprising a cell for receiving a sample of the fluid, the cell supporting a chemistry which reacts with the medically significant component and first and second terminals across which the reaction of the chemistry with the medically significant component can be assessed, an instrument having first and second terminals complementary to the first and second terminals, respectively, of the cell, placement of the first and second terminals of the cell in contact with the first and second terminals, respectively, of the instrument permitting the instrument to assess the reaction, the instrument including an assessment controller for applying across the first and second terminals of the instrument a first signal, determining a first correction value in response of the cell to the first signal, assessing the reaction of the medically significant component with the chemistry and combining the correction value with the result of the reaction assessment to produce an indication of the concentration of the medically significant component in the sample.
3 Assignments
0 Petitions
Accused Products
Abstract
An apparatus (31, 32, 132) and method for determining the concentration of a medically significant component (for example, glucose) of a biological fluid (for example, blood) comprise providing a cell (31) for receiving a sample of the fluid (for example, blood). The cell (31) supports a chemistry which reacts with the medically significant component (for example, glucose), and first and second terminals across which the reaction of the chemistry with the medically significant component can be assessed. An instrument (32, 132) has first (34-2, 134-2) and second (34-3, 134-3) terminals complementary to the first and second terminals, respectively, of the cell (31). An assessment controller (52, 54, 148, 158) is provided. The apparatus determines the type of sample and the concentration of a medically significant component of the sample.
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Citations
51 Claims
- 1. An apparatus for determining the concentration of a medically significant component of a biological fluid, the apparatus comprising a cell for receiving a sample of the fluid, the cell supporting a chemistry which reacts with the medically significant component and first and second terminals across which the reaction of the chemistry with the medically significant component can be assessed, an instrument having first and second terminals complementary to the first and second terminals, respectively, of the cell, placement of the first and second terminals of the cell in contact with the first and second terminals, respectively, of the instrument permitting the instrument to assess the reaction, the instrument including an assessment controller for applying across the first and second terminals of the instrument a first signal, determining a first correction value in response of the cell to the first signal, assessing the reaction of the medically significant component with the chemistry and combining the correction value with the result of the reaction assessment to produce an indication of the concentration of the medically significant component in the sample.
- 13. An apparatus for determining the concentration of a medically significant component of a biological fluid, the apparatus comprising a cell for receiving a sample of the fluid, the cell supporting a chemistry which reacts with the medically significant component and first and second terminals across which the reaction of the chemistry with the medically significant component can be assessed, an instrument having first and second terminals complementary to the first and second terminals, respectively, of the cell, placement of the first and second terminals of the cell in contact with the first and second terminals, respectively, of the instrument permitting the instrument to assess the reaction, the instrument including an assessment controller for applying across the first and second terminals of the instrument a first signal having an AC component, determining a first response of the cell to the first signal, and determining based upon the first response whether to proceed with the determination of the concentration of the medically significant component of the biological fluid.
- 24. A method for determining the concentration of a medically significant component of a biological fluid, the method comprising providing a cell for receiving a sample of the fluid, providing on the cell a chemistry which reacts with the medically significant component and first and second terminals across which the reaction of the chemistry with the medically significant component can be assessed, providing an instrument having first and second terminals complementary to the first and second terminals, respectively, of the cell, placement of the first and second terminals of the cell in contact with the first and second terminals, respectively, of the instrument permitting the instrument to assess the reaction, including in the instrument an assessment controller, causing the assessment controller to apply across the first and second terminals of the instrument a first signal having an AC component, causing the assessment controller to determine a first response of the cell to the first signal, and causing the assessment controller to determine based upon the first response whether to proceed with the determination of the concentration of the medically significant component of the biological fluid.
- 33. A method for determining the concentration of a medically significant component of a biological fluid, the method comprising providing a cell for receiving a sample of the fluid, providing the cell with a chemistry which reacts with the medically significant component and first and second terminals across which the reaction of the chemistry with the medically significant component can be assessed, providing an instrument having first and second terminals complementary to the first and second terminals, respectively, of the cell, placement of the first and second terminals of the cell in contact with the first and second terminals, respectively, of the instrument permitting the instrument to assess the reaction, providing in the instrument an assessment controller, causing the assessment controller to apply across the first and second terminals of the instrument a first signal, determining a first correction value in response to the first signal, assessing the reaction of the medically significant component with the chemistry, and combining the correction value with the result of the reaction assessment to produce an indication of the concentration of the medically significant component in the sample.
- 42. An apparatus for determining the concentration of a medically significant component of a biological fluid comprising a cell for receiving a sample of the fluid, the cell supporting a chemistry which reacts with the medically significant component and first and second terminals across which the reaction of the chemistry with the medically significant component can be assessed, an instrument having first and second terminals complementary to the first and second terminals, respectively, of the cell, placement of the first and second terminals of the cell in contact with the first and second terminals, respectively, of the instrument permitting the instrument to assess the reaction, the instrument including an assessment controller for applying across the first and second terminals of the instrument a first signal, for determining the identity of the sample in response of the cell to the first signal, and for producing an indication of the identity of the sample.
- 48. A method for determining the concentration of a medically significant component of a biological fluid comprising providing a cell for receiving a sample of the fluid, providing on the cell a chemistry which reacts with the medically significant component and first and second terminals across which the reaction of the chemistry with the medically significant component can be assessed, providing an instrument having first and second terminals complementary to the first and second terminals, respectively, of the cell, placement of the first and second terminals of the cell in contact with the first and second terminals, respectively, of the instrument permitting the instrument to assess the reaction, providing in the instrument an assessment controller for applying across the first and second terminals of the instrument a first signal, determining the identity of the sample in response of the cell to the first signal, and producing an indication of the identity of the sample.
Specification