2020 Volume Annual58 Issue Abstract Pages 498
Most recent methods of blood purification therapy prioritize blood purification efficiency. However, it has been reported that a disparity arises between the set blood removal flow rate and the actual flow rate when thinner indwelling needles are used, reducing blood purification efficiency. Therefore, With the aim of developing indwelling needles that can achieve a sufficient blood removal flow rate even with a thin needle, we have used computational fluid dynamics (CFD) to perform theoretical examinations. In the present study, we compared straight type with high flow type indwelling needle, investigated the optimum shape of the flow path. Comparing the actual flow rates, we found that the high flow type had superior blood removal properties, and that the difference between the set flow rate and the actual flow rate was small. Based on the results, we plan to perform further investigations of the optimal shape of indwelling needles.
