Newsletter  2015.11  Index

Theme : "Mechanical Engineering Congress, 2015 Japan (MECJ-15) Part 1" Preface T.TAKEMURA, I.KINEFUCHI, H.FUJII, H.YOKOYAMA Historical Perspective on Fluid Machinery Flow Optimization and a Message for the Future Akira GOTO (EBARA Corporation) Workshop on Blood Flow Visualization (Kesshiken) Masahiro TAKEI (Chiba University), Masanori NAKAMURA (Saitama University), Hiromichi OBARA (Tokyo Metropolitan University) Elucidation of the sudden death by the computational fluid dynamics Tadashi YAMAMOTO (Hokkaido Cardiovascular Hospital) Low RBC Interference in Micro Channel learned by Mosquito Blood Sucking Mechanism Kenji KIKUCHI (Tohoku University) Disposable Type Flowmeter for Medical and Biotechnology to see the Flow Tetsuya NAKANISHI (Aichi tokei denki Corporation)

 

Elucidation of the sudden death by the computational fluid dynamics

Kenji KIKUCHI Tohoku University

Abstract

We have been focusing on a possibility of low interference within blood flow in a micro scale channel. The RBC is at once taken heavy shear stress from velocity fields, the hemolysis, which put inside hemoglobin out, occurs. In that case, the RBC is broken by shear stress with an exposure time and makes to change to ghost RBC. Such broken blood isn’t suitable for blood checking of healthcare hence we have to suck blood under low-pressure restriction. The final goal of this research is an inspired design for micro needle learned by mosquito blood sucking mechanism. We perform that a consideration of low RBC interference in a micro channel learned by a mosquito blood sucking mechanism using an analytical method for basic fluid mechanics.

 

Key words

Low RBC interference, hemolysis, shear stress, exposure time, mosquito.

 

Figures

Fig. 1 Sucked blood in mosquito’s abdomen (a) Sucked RBCs (b) Normal RBCs

Fig. 2 RBC hemolysis shear stress vs. Exposure time modified from Baskurt et al(2007)

Fig. 3  RBC axial migration in a circular glass capillary with 25 µm in diameter.