Non-invasive blood analyzer
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United States of America Patent
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Aug 10, 1999
Grant Date -
N/A
app pub date -
May 16, 1995
filing date -
May 17, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A non-invasive blood analyzer includes a light applying device for applying light to a detection region including a blood vessel in a living body and a capturing device for capturing an image of the detection region to which the light is applied. Finally, an analyzing device is included for further processing the captured image to analyze blood cells in the blood vessel included in the detection region. Preferably, the analyzing device includes a reference image forming device for forming a reference image by using at least one of a plurality of images which the capturing device repeatedly captures with respect to the same detection region. In addition, it includes a differential image forming device for calculating a difference in pixel information between the reference image and one of the plurality of images to form a differential image by using the calculated difference as pixel information. Finally, a blood cell image detecting device is included for detecting a blood cell image from the differential image.
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