Blood component measurement device and blood component measurement method
First Claim
1. A blood component measurement device that measures a blood component amount using a biosensor into which blood is introduced wherein the blood component contained in said blood is subjected to oxidation-reduction reaction using an oxidoreductase, wherein the blood component measurement device includes:
- (a) a first current value measuring device that detects, as a first current value, an oxidation-reduction current that is generated by the oxidation-reduction reaction when a first voltage is applied to a first electrode pair in the biosensor;
(b) a second current value measuring device that detects, as a second current value, a current that is generated when a second voltage is applied to a second electrode pair in the biosensor;
(c) a controller that exerts control so that within a predetermined period after the introduction of the blood into the biosensor, the controller applies the second voltage to the second electrode pair in the form of pulses, so that the second current value is measured multiple times and the first current value is measured after the application of the second voltage;
(d) a converter that converts, to blood component amounts, pairs of the first current value measured by the first current value measuring device and any one of a plurality of second current values measured by the second current value measuring device; and
(e) a calculator that calculates the blood component amount for the blood introduced into the biosensor, using a plurality of the blood component amounts converted by the converter.
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Accused Products
Abstract
Provided are a blood component measurement device and the like capable of further suppressing the errors in measuring blood components. A first current value that is generated by oxidation-reduction when a first voltage is applied to a first electrode pair 21, 22 composing a biosensor 1 is measured, a second current value that is generated when a second voltage is applied to a second electrode pair 23, 24 composing the biosensor 1 is measured, and then the first current and the second current are converted to give a blood component amount. Within a predetermined period after the introduction of blood into the biosensor 1, the first current is measured multiple times and the second current is measured once. A CPU 72 converts a plurality of first current values and the second current value to obtain a plurality of blood component amounts and calculates the blood component amount for the blood introduced into the biosensor 1 from said plurality of blood component amounts.
9 Citations
4 Claims
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1. A blood component measurement device that measures a blood component amount using a biosensor into which blood is introduced wherein the blood component contained in said blood is subjected to oxidation-reduction reaction using an oxidoreductase, wherein the blood component measurement device includes:
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(a) a first current value measuring device that detects, as a first current value, an oxidation-reduction current that is generated by the oxidation-reduction reaction when a first voltage is applied to a first electrode pair in the biosensor; (b) a second current value measuring device that detects, as a second current value, a current that is generated when a second voltage is applied to a second electrode pair in the biosensor; (c) a controller that exerts control so that within a predetermined period after the introduction of the blood into the biosensor, the controller applies the second voltage to the second electrode pair in the form of pulses, so that the second current value is measured multiple times and the first current value is measured after the application of the second voltage; (d) a converter that converts, to blood component amounts, pairs of the first current value measured by the first current value measuring device and any one of a plurality of second current values measured by the second current value measuring device; and (e) a calculator that calculates the blood component amount for the blood introduced into the biosensor, using a plurality of the blood component amounts converted by the converter. - View Dependent Claims (2, 3, 4)
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Specification