Patent ID: 8712495

Claim:
A blood component concentration measurement device comprising: a first device, provided with a first fitting member, arranged to be placed on a surface of a body at a measurement site and including a perspiration accelerating unit arranged to accelerate perspiration from a surface of a body or a measurement site; a second device, provided with a second fitting member having a configuration identical to a configuration of the first fitting member, arranged to be placed on the surface of the body at the measurement site and including a perspiration collecting unit arranged to collect perspiration from the surface of the body or the measurement site; a positioning unit arranged to fix positions of the first device and the second device with respect to the measurement site; a coupling unit arranged to be removably fitted with either the first device through the first fitting member or the second device through the second fitting member with respect to the positioning unit such that the second device will be placed at a position at the measurement site that is a same position at which the first device was placed and then removed; and a third device including the positioning unit and the coupling unit and being a separate body from the first device and the second device; wherein the first device and the second device respectively have positions thereof fixed with respect to the surface of the body or the measurement site while contacting the measurement site, by being coupled with respect to the positioning unit arranged in the third device with the coupling unit; and the third device further includes: a determination unit arranged and programmed to determine which one of the first device and the second device is coupled by the coupling unit; a measurement unit arranged to measure a perspiration concentration of the target component detected by the second device; a conversion unit arranged to convert the perspiration concentration of the target component to a blood concentration; and an output unit arranged to output the blood concentration of the target component.