BIOLOGICAL INFORMATION MEASURING DEVICE, BIO SENSOR SYSTEM, AND ERROR DETECTION METHOD FOR BIOLOGICAL INFORMATION MEASURING DEVICE

摘要

In a biological information measurement device, the ingress of biological sample is detected even when a sensor is mounted, which reduces measurement error. The biological information measurement device comprises a voltage supply component that supplies voltage between first and second connectors, between second and third connectors, and between first and third connectors, a current measurement component that measures a first current that flows between the first and second connectors, a second current that flows between the second and third connectors, and a third current that flows between the first and third connectors, and a controller that is connected to the current measurement component and the voltage supply component. The controller compares two or more of the currents and thereby determines whether a foreign substance has adhered between two or more connectors out of the first, second, and third connectors.

主权项

1. A biological information measurement device, comprising:
a main case; a sensor mounting component that is provided at the main case and mounts a sensor for measuring biological information on the basis of a biological sample; a first connector, a second connector, and a third connector provided at the sensor mounting component; a voltage supply component that supplies voltage between the first connector and the second connector, between the second connector and the third connector, and between the first connector and the third connector; a current measurement component that measures a first current that flows between the first connector and the second connector, a second current that flows between the second connector and the third connector, and a third current that flows between the first connector and the third connector; and a controller that controls the current measurement component and the voltage supply component, wherein in a state in which a sensor is mounted to the sensor mounting component before the biological sample is deposited on the sensor, the controller (i) determines that no foreign substance is adhered between the first connector, the second connector, and the third connector unless at least one of a differential or a ratio between the first current and the second current, a differential or ratio between the second current and the third current, and a differential or ratio between the first current and the third current is within a specific range, and then, (ii) determines whether the sensor is a used sensor.