Departmental Bulletin Paper Development of three-dimensional forearm vein imaging system using light-section method for automatic blood Sampling
ジドウ サイケツ ノ タメ ノ ヒカリ セツダンホウ ニヨル 3ジゲン ゼンワン ジョウミャク イチ タンサク システム ノ カイハツ

Nakamachi, Eiji  ,  Nakagawa, Masaki  ,  Kimura, Ryohei  ,  Morita, Yusuke  ,  ナカマチ, エイジ  ,  ナカガワ, マサキ  ,  キムラ, リョウヘイ  ,  モリタ, ユウスケ  ,  仲町, 英治  ,  中川, 昌紀  ,  木村, 涼平  ,  森田, 有亮

58 ( 1 )  , pp.11 - 18 , 2017-04-30 , 同志社大学ハリス理化学研究所 , Transcription:ドウシシャ ダイガク ハリス リカガク ケンキュウジョ , Alternative:Harris Science Research Institute of Doshisha University
In this study, we developed a comprehensive biomedical optics device to detect the three-dimensional (3D) position of forearm veins by using the light-section method with near-infrared (NIR) light to execute automatic blood sampling. Now, there still remain the demands to develop "easy to use" blood sampling system for the deteriorated blood vessel caused by metabolic syndrome and aging. It is also difficult to find a vein of infants and obese people because the vein is thin and covered with thick subcutaneous fat for injection. Thus, there have been strong demands to develop a vein detecting and automatic blood sampling system. In the previous study, Nakamachi et al. detected vein positions in the finger by employing the combination of auto-focusing and stereo methods with NIR light. Our newly developed device was characterized as a quick, user-friendly, and highly accurate system for vein detection. In this study, by using the slit light with an NIR wavelength, the scanning image of the vein was taken. We succeeded in clear visualization of the vein using the image processing to improve the sharpness. We measured distance from the forearm surface to the center of the vein by using light-section method and vein diameter, found that the errors were less than 10% of the vein diameter, which was the tolerance threshold value of error.

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