血液凝固防止のための無電源血漿分離流路

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  • Implantable Blood Separating Channel Without Power Supply for Anticoagulation

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<p>This paper demonstrates a blood separating device using curved and branched channels. It applies centrifugal force on curved flow to blood cells and separates blood flow into blood cell rich and blood cell poor ones at the bifurcation. Though it cannot separate blood into plasma and blood cells completely, the blood with small concentrations of blood cells will have low coagulability and extend the lifetime of the implant medical device. The device functions without any power sources but the blood pressure. It was formed by winding silicone tubes and the length of the curving part was experimentally adjusted to see the effect of curve length to the separation, also considering blood flow rates. To suggest that lower concentration of blood cells helps avoiding blood coagulations, we evaluated the quantity of protein adhesions on titanium foil which contacted to human whole blood with different hematocrit values for 7 days.</p>

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