2021 Fiscal Year Final Research Report
Research on ultra-fine fiber LiDAR that contributes to next-generation minimally invasive medicine
Project/Area Number |
20K21892
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Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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Allocation Type | Multi-year Fund |
Review Section |
Medium-sized Section 90:Biomedical engineering and related fields
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Research Institution | Osaka University |
Principal Investigator |
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Project Period (FY) |
2020-07-30 – 2022-03-31
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Keywords | 内視鏡 / LiDAR / TOF / 光ファイバ / 測距 |
Outline of Final Research Achievements |
Aiming to realize a new technology that plays the role of the eye of the next-generation minimally invasive surgical robot, we conducted basic research on visible light LiDAR for acquiring color stereoscopic images of endoscopes. A short pulse light (1ns) from a visible light semiconductor laser (wavelength 637 nm) was irradiated to the target in the closed space through the fiber, and the reflected light was received through the fiber for TOF measurement. An accuracy of 0.95 mm was obtained at a measurement distance of 50 mm, clearing the target value. This allowed us to verify the principle of visible light 3D-LiDAR for the realization of a minimally invasive 3D endoscope.
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Free Research Field |
半導体レーザー応用システム工学
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Academic Significance and Societal Importance of the Research Achievements |
従来の内視鏡は直径数mmであり、2次元画像しか得られず、診療や手術で使用する際に限界があった。将来の次世代低侵襲医療においては内視鏡検査・手術の高度化が必要であり、体内へ挿入するファイバーの極細化はもとより、患部の3次元画像やラマン像の取得が必須である。本研究では、内視鏡のカラー3次元画像取得を想定し、光ファイバーを使った至近距離カラーLiDARの原理検証を行った。これにより将来は、低侵襲手術における目の役目を果たす内視鏡が現実化し、画期的なAI手術ロボットや低侵襲の体内深部ラマン診断へと発展する。
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