F-0718 凸レンズ面状先端を持つ光ファイバーLDV血流センサーの開発(J22-2 生体関連の熱・流体工学(2))(J22 生体関連の熱・流体工学)

概要

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In order to measure local blood velocity in blood vessel, we have developed a miniaturized fiber optic LDV sensor. We have improved our optical system in order to made local measurements for full blood and to make the sensor head capable of receiving stronger scattered light of higher quality. A small probe (o.d.=1.2mm) has been developed so far and it has been able to be easily inserted blood vessel in a hypodermic needle. However, this probe has been too big for measuring local blood velocity. In order to overcome this problem, we have tried to miniaturize our probe. A fiber tip of convex lens type has been made by a chemical etching, in which a quartz fiber is dipped into a buffered HF acid solution. This type of sensor has shown a capability of measuring local velocity of human blood flowing in a model blood vessel.
一般社団法人日本機械学会の論文
2001-08-22