US 8,282,813 B2Granted

Biosensor measurement machine, biosensor measurement system and biosensor measurement method

AssigneesSumitomo Electric Industries, Ltd., National Institute of Advanced Industrial Science and Technology

InventorsShingo Kaimori, Toshifumi Hosoya, Moriyasu Ichino, Takahiko Kitamura, Isao Karube, Masao Gotoh, Hideaki Nakamura, Tomoko Ishikawa

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Abstract

A biosensor measurement device for providing accurate measurement results within a short period of time by using only a very small amount of sample. The biosensor measurement device includes a power source, which is connected to a voltage regulator, a measurement instrument, and a controller for supplying power. When the biosensor chip is connected to the biosensor measurement device and a voltage is applied, the measurement instrument begins the measurement of a current value for the biosensor. When the measured current value or a measured charge value is greater than a reference value, the measurement is terminated in accordance with an instruction issued by the controller, and when the value is smaller than the reference value, the measurement is continued in accordance with a controller instruction.

Claims6

Dependent claims

A biosensor measurement machine comprising:

a voltage application unit for applying a voltage to a biosensor chip;
a measurement unit for measuring a current or a charge generated by the voltage application unit;
and
a control unit for determining whether a measurement should be continued, based on a current value or a charge value measured by the measurement unit,
wherein the control unit is configured to:
compare the current value or the charge value with a reference value to determine whether the measurement should be continued,
terminate the measurement of the current value or the charge value either when it is determined that the current value or the charge value exceeds the reference value, or after a predetermined time has passed, whichever occurs first,
and,
perform a measurement of a chemical substance to determine the concentration of the chemical substance based on said current value or charge value measured immediately prior to termination of the measurement as measured by the measurement unit.

6 more elements

Dependencies are inferred from the claim text.