Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
권호 표지
DOI QR코드

DOI QR Code

Development of Intravascular Micro Active Endoscope(II) -System Design, Fabrication and In-vitro Evaluation-

혈관 삽입용 초소형 작동형 내시경의 개발(II) - 시스템 설계, 제작 및 체외 성능 분석 -

  • Chang, Jun-Keun (Seoul National Univ. Institute of Advanced Machinery and Design) ;
  • Chung, Seok (Seoul National Univ. Dept. of Mechanical Design & Production Engineering) ;
  • Lee, Yong-Ku (Seoul National Univ. School of Mechanical and Aerospace Engineering)
  • 장준근 (서울대학교 정밀기계설계공동연구소) ;
  • 정석 (서울대학교 기계설계학과 대학원) ;
  • 이용구 (서울대학교 기계항공공학부)
  • Published : 1999.09.01
Download PDF
⟨ Previous Next ⟩

Abstract

To predict the behavior of the intravascular micro active endoscope in the real human vascular system, a human mock circulation system was developed. The intravascular micro active endoscope which consists of micro active bending catheter and micro drug infusion catheter was driven in the velocity, Re number and temperature controlled flow. The three SMA (Shape Memory Alloy) zigzag type spring in the micro active bending catheter was heated by the electric current generated by PWM controller, and the shape memory effect made the actuator bend to any direction. The micro drug infusion catheter was driven through the inner hole of the micro active bending catheter. A mock circulation system is shaped from Ascending Arota to Femoral artery according to a human data (the data contains many vascular sizes and hydrographs of many control points). We developed a vascular model with glass and silicone tubes, and set the flow system with circulation parts, flow settling parts, and lots of valves. The heater and heat-controller was added to the How system to centre! the temperature of the How at 36.5$^{\circ}C$. The result showed that the developed intravascular micro active endoscope could be induced to any point in the vascular model.

Keywords

References

  1. Vascular diseases Strnadness, Jr. D. E.;von Breda, A.
  2. Proceedings of The 1st International Micromachine Symposium Environment Monitoring Device of Fiber Scope Type Tohyama, O.;Maeda, S.;Yamanoto, K.;Itoh, H.;Utsumi, A.;Fukui, M.
  3. J. of Micromech. Microeng. v.6 An Integrated Communication and control System for a Multi-link Active Catheter Park, K-T.;Minami, K.;Esashi, M.
  4. Proceedings of The 1st International Micromachine Symposium Multi-Freedom Tube Type Micro Manipulator Yanagisawa, K.;Inahasi, J.;Senga, T.;Adachi, H.;Kaneko,S.;Arai, K.;Aramaki, S
  5. Parylene Conformal Coatings Specifications and Properties
  6. J. of Biomechanics v.26 no.10 Two-dimensional Velocity Measurements in a Pulsatile Flow Model of the Normal Abdominal Aorta Simulating Different Hemodynamic Condition Pedersen, E. M.;Sung, H.;Burlson, A. C.;Yoganthan, A. P.
  7. J. of Applied Physiology v.20 no.3 Pressure-flow Relationships in the Ascending Aorta and Femoral Artery of Man Patel, D. J.;Greenfield Jr., J. C.;Austen, W. G.;Morrow, A. G.;Fry, D. L.
  8. Human Anatomy and Physiology Marieb, E. N.
  9. 한국정밀공학회 1997년도 추계학술대회 논문집(Ⅱ) 초소형 작동형 내시경용 미세 도선 가공 시스템으로 형성된 구리 박막의 특성 및 표면 분석 장준근;정석;한동철