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Development of Portable Fiber-Optic Laser Doppler Velocimetry Sensor for Measurement of Local Flow Velocity of Blood and Opaque Multi-Phase Fluids

Research Project

Project/Area Number 09555067
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Fluid engineering
Research InstitutionKansai University

Principal Investigator

OHBA Kenkichi  Kansai University, Faculty of Engineering, Professor, 工学部, 教授 (30029186)

Co-Investigator(Kenkyū-buntansha) SAKURAI Atsushi  Kansai University, Faculty of Engineering, Assistant, 工学部, 助手 (50162334)
BANDO Kiyoshi  Kansai University, Faculty of Engineering, Professor, 工学部, 教授 (70156545)
SATO Yukinari  Kanomax Research Institute Co., LTD., Vice President, 副社長
Project Period (FY) 1997 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥9,900,000 (Direct Cost: ¥9,900,000)
Fiscal Year 1999: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1998: ¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 1997: ¥5,700,000 (Direct Cost: ¥5,700,000)
KeywordsFiber optic sensor / Laser Doppler velocimetry sensor / Blood flow measurement / Opaque fluid flow measurement / Distributed index lens / Obliquely truncated conical head / Sensor head incorporated inside syringe needle / Insertion into blood vessel / 光ファイバーレーザードップラー流速計 / 血液測定 / 斜め切頭円錐レンズヘッド / 注射針内組み込み式刺入センサー / 血液と不透明流体の測定 / 分布屈折率レンズを持つセンサーヘッド / 斜め切頭円錐型レンズ / 注射針内組込式刺入センサー / 血液および不透明流体の測定 / センサーヘッド周りの流れ場 / 数値シミュレーション
Research Abstract

In order to measure the local velocity field in opaque fluids like blood and/or multi-phase fluids, a new fiber-optic laser Doppler velocimetry sensor has been developed. In the course of the present research for the development the followings have been elucidated :
After obtaining the characteristics of laser light extinction in bovine blood of several different dilution rates and in mixtures of white pigment and water, the flow velocity of diluted bovine blood contained in an annular open channel which is placed on a rotating disc has been measured by using the present fiber optic sensor. Its pickup consists of a distributed index lens of 2mm in diameter attached at the tip of two fibers being joined side by side in parallel. Although the sensor is capable of making a accurate measurement of local velocity of diluted blood up to 20%, it cannot measure the velocity of thicker blood, because the blood used is considered to has worse quality than intact blood in vivo.
The sensor head has … More been improved ; Firstly, its tip is shaped to have an obliquely truncated cone in order to decrease a disturbance of flow by the head and also to diminish undesirable light scattered from the tip of the head. Secondly, a smaller DIL lens of 1mm in diameter is adopted instead of the 2mm- diameter DIL lens to make it inserted inside of the needle of a hypodermic syringe. Thirdly, a mono-fiber optical system is adopted instead of the dual-fiber optical system to increase the sensitivity for opaque fluid. Fourthly, a bonding agent of being hardened by ultraviolet light is used between the fiber and the DIL lens to diminish an undesirable scattered light. As a result, the maximum measurable concentration of the semi-opaque suspension fluid is increase to be four times greater than the original one.
By inserting the improved sensor head incorporated inside the syringe needle into a modeled blood vessel of silicone rubber, a high concentration suspension fluid of white pigment as a model blood flowing in the tube has been measured. As a result, the velocity distribution of a paraboloid of revolution characterizing the developed steady laminar flow is accurately obtained. Hence, it can be concluded that the prospect of success is good to measure the local blood velocity in blood vessel in vivo by directly inserting the sensor head into the vessel. Less

Report

(4 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • Research Products

    (22 results)

All Other

All Publications (22 results)

  • [Publications] 西山正之、大場謙吉: "局所血流速測定用小型光ファイバーLDVセンサーの開発(斜め端面をもったDILセンターヘッドの特性)"日本機械学会講演論文集. 97-4. 54-55 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 西山正之、大場謙吉: "局所血流速測定用小型光ファイバーLDVセンサーの開発(DILセンサーヘッドの小型化)"日本機械学会講演論文集. 97-72. 251-252 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 池田和之、大場謙吉、板東潔: "光ファイバーLDVセンサーへッド周りの流れ場の数値シミュレーション"日本機械学会講演論文集. 984-1. 43-44 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] K. Ohba, M. Nishiyama and K. Korenaga: "Development of fiber optic laser Doppler velocimeter sensor for measurement of local blood velocity"Proceedings of 9^<th> International Symposium on Applications of Laser Techniques to Fluid Mechanics. 28.3.1-28.3.5 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 大場謙吉: "血流測定"混相流(日本混相流学会誌). 12-4. 350-357 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 武重光彦、大場謙吉、西山正之: "血管内の局所血流速測定用光ファイバーLDVセンサーの開発"日本機械学会第10回バイオエンジニアリング学術講演会・秋季セミナー講演論文集. 99-36. 29-30 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. Nishiyama and K. Ohba: "Development of tiny fiber-optic LDV sensor for local blood velocity-Characteristics of sensor head of obliquely truncated conical DIL lens-"Proceedings of JSME (in Japanese). 97-4. 54-55 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. Nishiyama and K. Ohba: "Development of tiny fiber-optic LDV sensor for local blood velocity-Miniaturization of sensor head of DIL lens-"Proceeding of JSME (in Japanese). 97-72. 251-252 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] K. Ikeda, K. Ohba and K. Bando: "Numerical simulation of flow field around a sensor head of a fiber-optic LDV sensor"Proceeding of JSME (in Japanese). 984-1. 43-44 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] K. Ohba, M. Nishiyama and K. Korenaga: "Development of fiber-optic laser Doppler velocimeter sensor for Measurement of local blood velocity"Proceeding of 9ィイD1thィエD1 International Symposium on Applications of Laser Techniques to Fluid mechanics. 28. 3. 1-28. 3. 5 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] K. Ohba: "Blood flow measurement"Japanese Journal of Multiphase Flow (in Japanese). 12-4. 350-357 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. Takeshige, K. Ohba and M. Nishiyama: "Development of fiber-optic LDV sensor for local blood velocity flowing in blood vessel"Proceedings of 10ィイD1thィエD1 JSME Bioengineering Conference and Autumn Seminar (in Japanese). 99-36. 29-30 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 大場謙吉、西山正之、他: "局所血流速測定用小型光ファイバーLDVセンサーの開発"日本機械学会1999年度年次大会講演論文集. No.99-1. 605-606 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 武重光彦、大場謙吉、他: "血管内の局所血流速測定用光ファイバーLDVセンサーの開発"日本機械学会第10回BE学術講演会・秋季セミナー講演論文集. No.99-36. 29-30 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] K.Ohba,M.Nishiyama & K.Korenaga: "Development of fiber optic laser Doppler velocimeter sensor for measurement of local blood velocity" Proceedings of 9th International Symposium on Appl-ications of Laser Techniques to Fluid Mechanics. Vol.2. 28.3.1-28.3.5 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] K.Ohba,K.Korenaga & N.Nishiyama: "A new fiber optic laser Doppler velocimeter sensor for measure-ment of local blood velocity" Abstracts of 3rd World Congress of Biomechanics. 200-200 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 大場,謙吉: "血流測定" 混相流(日本混相流学会誌). 12-4. 350-357 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 西山,正之,大場,謙吉: "局所血流速測定用小型光ファイバーLDVセンサーの開発" 第37回日本ME学会大会論文集. 36-Sup.307-307 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] T.Fujisato, Y.Iuchi, T.Tsuji & K.Ohba: "Development of Cell-Fixation Device using Microporous Glass for Gene Injection into Fertilized Minipig Ova" Proceedings of the World Congress on Medical Physics and Biomedical Engineering. 35-Pt.2. 1283-1284 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 西山,正之・大場,謙吉: "光ファイバーLDVセンサーの開発(斜め端面を持ったDILセンサーヘッドの特性)" 日本機械学会講演論文集. No.97-4. 54-55 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 西山,正之・大場,謙吉: "光ファイバーLDVセンサーの開発(DILセンサーヘッドの小型化)" 日本機械学会講演論文集. No.97-72. 251-252 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] 池田・大場・板東: "光ファイバーLDVセンサーヘッド周りの流れ場の数値シミュレーション" 日本機械学会講演論文集. No.984-1(発表予定). (1998)

    • Related Report
      1997 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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