Abstract
In this study, a health monitoring system (HMS) for diabetes patient is newly developed. Our HMS fabrication extracts the blood through a micro-needle without a pain and measures the blood sugar level accurately. Main subjects of our HMS fabrication are 1) the minimally invasive blood extraction by using the micro-needle with inner diameter less than 100 μm, 2) the handy type automatic blood extraction, and 3) the continuous measurement of the blood sugar level. We adopts a vacuum type blood extraction scheme. The vacuum driven blood extraction unit consists of a) a puncture part to open the vacuum chamber, b) an extraction part, and c) a measurement part. In the results, the vacuum driven blood extraction unit succeeds in extracting 12.7 μl of human blood within 2 seconds. The blood sugar level is measured successfully by using the glucose enzyme sensor. Therefore, a sufficient operating characteristics of our blood extraction device is confirmed.
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